CN105708488B - A kind of repeating anti-noise stethoscope head - Google Patents
A kind of repeating anti-noise stethoscope head Download PDFInfo
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- CN105708488B CN105708488B CN201410722617.4A CN201410722617A CN105708488B CN 105708488 B CN105708488 B CN 105708488B CN 201410722617 A CN201410722617 A CN 201410722617A CN 105708488 B CN105708488 B CN 105708488B
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Abstract
The present invention relates to Medical Devices, especially stethoscope.A kind of repeating anti-noise stethoscope head of the present invention, including listening head body, the listening head body is equipped with sound collecting surface, and the sound collecting surface is equipped with the voice guide hole being connected to listening head body outside, and the sound collecting surface side is located on the listening head body and is equipped at least two not in conplane annular end face.The annular end face and the sound collecting surface are connected to form the collection sound region of recess, the collection sound region only have there are one outside open end.The present invention has the advantages that improve acoustic performance and anti-external noise.
Description
Technical field
The present invention relates to Medical Devices more particularly to stethoscopes.
Background technology
Stethoscopic hearing effect is improved in the prior art, generally by the tension for changing diaphragm, or is improved and is listened
Head bulk density, or the modes such as shaft and the leakproofness of listening head body are improved to realize, but these schemes are by changing
Become the environment after audio receives come what is realized, can not be optimized from the source of sound.
Invention content
The goal of the invention of the present invention is, provides one kind and improving hearing effect from sound source, effectively improves audition
It can be with the stethoscope head of anti-external noise performance.
What the goal of the invention of the present invention was realized in：
When listening head body is to be integrally formed, without using in the case of diaphragm：
A kind of repeating anti-noise stethoscope head, including listening head body, the listening head body are equipped with sound collecting surface, the sound collecting surface
For curved surface, curved surface is rounded by curve and is formed, and the curve can be broken line, circular arc, oblique line and the two or the knot of three
It closes and constitutes.The region that the curved surface surrounds is collection sound region.The collection sound region is set there are one open end, is set on the sound collecting surface
The voice guide hole for having and being connected to outside listening head body is located at the sound collecting surface side on the listening head body and is equipped at least two not
In conplane annular end face.Described can not be coaxial annular end face in conplane annular end face, can also be difference
The annular end face of axis.Wherein, the annular end face is connected to form the collection sound region of recess, the collection sound region with the sound collecting surface
Only there are one outside open ends for tool.
The annular end face includes the first annular end face and the second annular end face, and the internal diameter of first annular end face is more than
The internal diameter of second annular end face, first annular end face are located at the open end side in the collection sound region, and described first
Annular end face is used to tighten the contact surface with receptor, so that the sound inside internal organs is enhanced in outflow, plays enhancing auscultation
Device acquires the intensity of audio.Second annular end face is than first annular end face closer to the voice guide hole side, i.e.,
The vertical range of two annular end faces to the voice guide hole is shorter than the vertical range of the first annular end face to the voice guide hole, and described
Sound of two annular end faces for collecting internal organs in auscultation.
In use, stethoscope head ontology is pressed on audient's audition portion faces, collection sound region is made to be formed simultaneously two independences
Collection sound chamber, two independent collection sound chambers are separated by the audition portion faces of audient.Collection sound chamber by voice guide hole side is
Main collection sound chamber is used for auscultation.And integrate sound chamber close to audition portion faces as supplementary set sound chamber, a ring-type of supplementary set sound chamber
End face, for being pressed in audition portion faces and tightening audition portion faces, after audient's internal organs are made a sound raising audio
It is being transferred to main collection sound chamber.
When listening head body be integrally formed, in the case of using diaphragm：
A kind of repeating anti-noise stethoscope head, including listening head body, fixing piece and diaphragm.The listening head body is equipped with collection sound
Face, the sound collecting surface are curved surface, and curved surface is rounded by curve and formed.The region that the curved surface surrounds is collection sound region, described
Collection sound region is set there are one open end, and the sound collecting surface is equipped with the voice guide hole being connected to listening head body outside, in the can
It is located at the sound collecting surface side on ontology and is equipped at least two not in conplane annular end face.It is described not conplane
Annular end face can be coaxial annular end face, can also be out-of-alignment annular end face.The annular end face and the sound collecting surface phase
Even formed recess collection sound region, the collection sound region only have there are one outside open end.The annular end face includes first
Annular end face and the second annular end face, the internal diameter of first annular end face are more than the internal diameter of second annular end face, and the
The vertical range of two annular end faces to the voice guide hole is smaller than the vertical range of the first annular end face to the voice guide hole, described solid
Determine the cooperation of part and the can to fix, the fixing piece by the diaphragm be fixed on second annular end face and fixing piece it
Between, first annular end face is higher than the outside peak of fixing piece upper surface and the diaphragm, and first annular end face
Audition portion faces are contacted with the diaphragm simultaneously.The fixing piece and the listening head body can be screw-thread fits, and spinner is matched
The modes such as conjunction, close-fitting, but be preferred with screw-thread fit.
In use, stethoscope head ontology is pressed on audient's audition portion faces, collection sound region is made to be formed simultaneously two independences
Collection sound chamber, two independent collection sound chambers are separated by the audition portion faces of audient.Collection sound chamber by voice guide hole side is
Main collection sound chamber（It is formed by the lower face and sound collecting surface of diaphragm）, it is used for auscultation.And supplemented by the collection sound chamber of close audition portion faces
Help collection sound chamber（It is formed by audition portion faces, diaphragm upper surface and sound collecting surface）；One annular end face of supplementary set sound chamber is used
In being pressed in audition portion faces and tightening audition portion faces, to be transferred to after audient's internal organs are made a sound raising audio
Main collection sound chamber.
When listening head body is using split type, and using in the case of diaphragm：
A kind of repeating anti-noise stethoscope head, including listening head body and diaphragm.The listening head body is equipped with sound collecting surface, described
Sound collecting surface is curved surface, and the region that the curved surface surrounds is collection sound region, the collection sound region set there are one open end, the collection sound
Face is equipped with the voice guide hole being connected to listening head body outside, and the sound collecting surface side is located on the listening head body and is equipped at least
Two in conplane annular end face.Described can not be coaxial annular end face in conplane annular end face, also may be used
It is out-of-alignment annular end face.Wherein, the annular end face is connected to form the collection sound region of recess, the collection with the sound collecting surface
Sound region only has there are one outside open end.The listening head body includes cooperate fixed first portion and second portion, the film
Piece is fixed between the first portion and the second portion, and the first portion is used to enhance the intensity of stethoscope acquisition audio.
Further, the first portion is ring-type, and the annular end face includes the first annular end face and the second annular end face, institute
The internal diameter for stating the first annular end face is more than the internal diameter of second annular end face, and the second annular end face hanging down to the voice guide hole
Straight distance is smaller than the vertical range of the first annular end face to the voice guide hole；First annular end face and second looped end
Face is respectively positioned in the first portion；The first portion is additionally provided with an axial half-via, and the half-via is adjacent to the second end face；Institute
Stating second portion and half-via cooperation makes the diaphragm be fixed in the half-via, and first annular end face is higher than the film
The outside peak of piece, and first annular end face and the diaphragm contact audition portion faces simultaneously.
Further, the first portion is ring-type, and the annular end face includes the first annular end face and the second annular end face, institute
The internal diameter for stating the first annular end face is more than the internal diameter of second annular end face, and the second annular end face hanging down to the voice guide hole
Straight distance is smaller than the vertical range of the first annular end face to the voice guide hole；First annular end face is located in the first portion,
Second annular end face is located in the second portion；First annular end face is located at the top in the first portion, the first portion
Lower part coordinates with the second portion, and the diaphragm is made to be fixed in second annular end face, and first annular end face is higher than institute
The outside peak of diaphragm is stated, and first annular end face and the diaphragm contact audition portion faces simultaneously.
Further, the diaphragm is equipped with circular step and footing；The annular end face includes the first annular end face and the
Two annular end faces, the internal diameter of first annular end face is more than the internal diameter of second annular end face, and the second annular end face is extremely
The vertical range of the voice guide hole is smaller than the vertical range of the first annular end face to the voice guide hole；The sound collecting surface one in the second portion
Side is equipped with annular groove and annular shoulder, and the footing of the diaphragm is placed in the annular groove；The lower part in the first portion is equipped with axial half
The outer rim of through-hole, the open end side in the second portion is equipped with circular step, and the step surface of the circular step is equipped with screw thread；Institute
State half-via hole wall be equipped with the matched screw thread of screw thread on step surface, the first portion and second portion screw-thread fit, make described
The half-via bottom surface in first portion is pressed on the step of the diaphragm, and first annular end face and the diaphragm contact audition simultaneously
Portion faces.
In use, stethoscope head ontology is pressed on audient's audition portion faces, collection sound region is made to be formed simultaneously two independences
Collection sound chamber, two independent collection sound chambers are separated by the audition portion faces of audient.Collection sound chamber by voice guide hole side is
Main collection sound chamber（It is formed by the lower face and sound collecting surface of diaphragm）, it is used for auscultation.And supplemented by the collection sound chamber of close audition portion faces
Help collection sound chamber（It is formed by audition portion faces, diaphragm upper surface and sound collecting surface）；One annular end face of supplementary set sound chamber is used
In being pressed in audition portion faces and tightening audition portion faces, to be transferred to after audient's internal organs are made a sound raising audio
Main collection sound chamber.
The present invention has the following advantages：
1, the present invention is first tightened audition portion faces by the first annular end face, and the sound that the internal organs made are sent out passes through taut
The sound of next audition portion faces outflow more high audio.
2, due to increasing the contact area of listening head body（Two annular end faces are in direct contact audition position）, increase solid
The conductive quantity to sound of body.
3, either chaffy can does not still use the can of diaphragm, and the present invention is respectively formed two in collection sound region
Independent collection sound chamber.First annular end face, sound collecting surface, audient surface and the second annular end face form a collection sound chamber either
First annular end face, sound collecting surface, the audition portion faces of audient and diaphragm form a collection sound chamber.Second annular end face is pressed on
When the audition portion faces of audient, the second annular end face and sound collecting surface formed another collection sound chamber either second annular end face with
Diaphragm and sound collecting surface form another collection sound chamber.Second annular end face forms another collection sound chamber either the second ring with sound collecting surface
Shape end face and diaphragm and sound collecting surface, which are formed, collects sound chamber based on another collection sound chamber, and another integrates sound chamber as supplementary set sound chamber, auxiliary
Help collection sound chamber that the sound of collection is transferred to main collection sound chamber by vibration, thus the effect of the audition enhanced.
4, the present invention is significantly improved in anti-external noise performance compared with the prior art.
Description of the drawings
There are two annular end faces for Fig. 1 present invention tool, and integral type is without film listening head body structural schematic diagram.
There are three annular end faces for Fig. 2 present invention tool, and integral type is without film listening head body structural schematic diagram.
Fig. 3 is annular end face there are three present invention tools, and integral type is contacted without film listening head body with audition portion faces 5
Schematic diagram.
Fig. 4 is integrally formed for listening head body of the present invention, and for tool there are two annular end face, listening head body is equipped with annular groove, fixed
Diaphragm is fixed on schematic diagram between the two by part external screw thread with listening head body screw-internal thread fit.
Fig. 5 is integrally formed for listening head body of the present invention, and there are two annular end face, sound collecting surfaces to be equipped with annular groove and internal thread for tool
Schematic diagram.
Fig. 6 is through hole and a half-via there are one fixing piece of the present invention is set, and the outer rim of fixing piece is equipped with external screw thread
Schematic diagram.
Fig. 7 is integrally formed for listening head body of the present invention, and there are two annular end face, sound collecting surfaces to be equipped with annular groove, fixing piece for tool
The schematic diagram that diaphragm is fixed on therebetween with listening head body screw-internal thread fit, and is contacted with audition portion faces 5 by external screw thread.
Fig. 8 is integrally formed for listening head body of the present invention, annular end face that there are two tools, in fixing piece external screw thread and listening head body
Diaphragm is fixed on schematic diagram between the two by screw-thread fit.
Fig. 9 is integrally formed for listening head body of the present invention, annular end face that there are two tools, and female signal is set on sound collecting surface
Figure.
Figure 10 is that fixing piece of the present invention is provided only with a through hole, and the outer rim of fixing piece is equipped with externally threaded schematic diagram.
Figure 11 is integrally formed for listening head body of the present invention, and there are two annular end face, fixing piece external screw thread and listening head bodies for tool
Diaphragm is fixed on therebetween by screw-internal thread fit, and the schematic diagram contacted with audition portion faces 5.
Figure 12 is that listening head body of the present invention is split type, and two annular end faces are respectively positioned on first portion, and first portion matches with second portion screw thread
Diaphragm is fixed on schematic diagram between the two by conjunction.
Figure 13 is listening head body second of the present invention portion, and second portion outer rim sets threaded schematic diagram.
Figure 14 is listening head body first of the present invention portion, and first portion is equipped with through-hole and half-via, and the first annular end face and the second ring
Shape end face is respectively positioned on the schematic diagram in first portion.
Figure 15 is that listening head body of the present invention is split type, first portion and second portion cooperation schematic diagram.
Figure 16 is that listening head body of the present invention is split type, and diaphragm is fixed and coordinated therebetween by first portion and second portion, and with listen
The schematic diagram that sound portion faces 5 contact.
Figure 17 is that listening head body of the present invention is split type, and the first annular end face is respectively positioned on first portion, and the second annular end face is located at second
Diaphragm is fixed on schematic diagram between the two by portion, first portion with second portion screw-thread fit.
Figure 18 is listening head body second of the present invention portion, and second portion is equipped with the schematic diagram of the second annular end face.
Figure 19 is listening head body first of the present invention portion, and first portion is equipped with the schematic diagram of the first annular end face.
Figure 20 is that listening head body of the present invention is split type, and the first annular end face is respectively positioned on first portion, and the second annular end face is located at second
Portion, first portion and second portion fix diaphragm and cooperation, and the schematic diagram contacted with audition portion faces 5 therebetween.
Figure 21 is that listening head body of the present invention is split type, and diaphragm has circular step and a footing, and first portion and second portion are by diaphragm
Schematic diagram that is fixed and coordinating therebetween.
Figure 22 is listening head body second of the present invention portion, is equipped with the schematic diagram of annular groove and annular shoulder.
Figure 23 is the schematic diagram that diaphragm of the present invention is equipped with footing and circular step.
Figure 24 is first portion of the present invention and the schematic diagram equipped with the cooperation of the second portion of annular groove and annular shoulder.
Figure 25 is that listening head body of the present invention is split type, first portion and second portion will be fixed equipped with the diaphragm of circular step and footing and
Therebetween cooperation, and the schematic diagram contacted with audition portion faces 5.
Figure 26 is that listening head body of the present invention is split type, first portion and second portion will be fixed equipped with the diaphragm of circular step and footing and
Therebetween cooperation, and diaphragm lower face is abutted with the annular shoulder in second portion, and the schematic diagram contacted with audition portion faces 5.
In figure：
1 listening head body,
10 sound collecting surfaces, 11 voice guide holes, 12 annular grooves, 13 listening head body internal threads,
15 first annular end faces, 16 second annular end faces, 17 third annular end faces,
18 collection sound regions, 181 collection sound chambers, 182 collection sound chambers, 183 collection sound chambers, 184 collection sound chambers,
19 open ends, 21 annular groove lateral wall screw threads, 22 annular groove madial wall screw threads,
23 first portions, 231 first portion internal threads, 232 through-holes, 233 half-vias, 235 first portion external screw threads,
24 second portions, 241 second portion external screw threads, 242 upper surfaces, 243 second portion internal threads, 245 annular grooves, 246 annular shoulders,
25 circular steps, 251 step sides, 252 bench floors,
3 fixing pieces
The upper surface of 31 fixing pieces, 32 through-holes, 33 half-vias, 34 through-holes, 35 external screw threads
4 diaphragms
Peak on the outside of 41 diaphragms, 42 footing, 43 circular steps, 44 diaphragm lower faces
5 audition portion faces,
The internal diameter of the first annular end faces of R1, the internal diameter of the second annular end faces of R2, the outer diameter of the second annular end faces of R3,
The first annular end faces of H1 are to the vertical range of voice guide hole, the vertical range of the second annular end faces of H2 to voice guide hole,
Specific implementation mode
Following further describes the present invention with reference to the drawings, and following embodiment is only preference, is not to this hair
Bright range limits, on the contrary, the purpose is to wish to cover various changes and have an equality is arranged in institute of the present invention
It is intended in the scope of the scope of the claims applied.
Embodiment 1：
With reference to Fig. 1, the present invention is described further.
A kind of repeating anti-noise stethoscope head, including listening head body 1.Listening head body 1 be equipped with sound collecting surface 10, sound collecting surface 10 by
Curve is formed for one week around axis.Sound collecting surface 10 is equipped with the voice guide hole 11 being connected to 1 outside of listening head body.On listening head body 1
It is equipped with not in same plane but coaxial the first annular end face 15 and the second annular end face 16 positioned at 10 side of sound collecting surface.First ring
Shape end face 15 is higher than the second annular end face 16.Vertical range of first annular end face 15 apart from voice guide hole 11 is H1, and second is cyclic annular
Vertical range of the end face 16 apart from voice guide hole 11 is H2, and H1 is more than H2.The internal diameter of first annular end face 15 is R1, the second looped end
The internal diameter in face 16 is R2, and R1 is more than R2.
First annular end face 15, the second annular end face 16 and sound collecting surface 10 form a collection sound region 18, collection sound region 18
There are one outside open ends 19 for tool.
Wherein the first annular end face 15 is used to, by the skin-tightening at the audition position of audient, then pass through the second looped end
Face 16 contacts the skin after tightening, and listens the sound of taking internal organ.
Implement 2：
With reference to Fig. 2, Fig. 3, the present invention is described further.
A kind of repeating anti-noise stethoscope head, including listening head body 1.Listening head body 1 is equipped with sound collecting surface 10, and sound collecting surface 10 is
Curved surface.Sound collecting surface 10 is equipped with the voice guide hole 11 being connected to 1 outside of listening head body.It is located at 10 side of sound collecting surface on listening head body 1
Equipped with not in same plane but the first coaxial annular end face 15 and the second annular end face 16 and third annular end face 17.First
Annular end face 15 is higher than the second annular end face 16 and third annular end face 17.Second annular end face 16 is higher than third annular end face
17.First annular end face 15, the second annular end face 16, third annular end face 17 and sound collecting surface 10 form a collection sound region 18,
Collecting 18 tool of sound region, there are one open ends 19.Vertical range of first annular end face 15 apart from voice guide hole 11 is H1, and second is cyclic annular
Vertical range of the end face 16 apart from voice guide hole 11 is H2, and H1 is more than H2.The internal diameter of first annular end face 15 is R1, the second looped end
The internal diameter in face 16 is R2, and R1 is more than R2.
In use, the audition portion faces 5 that can of the present invention is pressed on to audient form a collection sound region 18.Wherein first
Annular end face 15 is pressed on audition portion faces 5 and tightens audition portion faces 5, keeps the wave audio that internal organs are spread out of stronger.So
The second annular end face 16 is pressed on the audition portion faces 5 after tightening, shape between the second annular end face 16 and sound collecting surface 10 simultaneously afterwards
At a collection sound chamber 182.It first annular end face 15, the second annular end face 16 and third annular end face 17, sound collecting surface 10 and listens
Sound portion faces 5 form collection sound chamber 181.Integrate sound chamber 182 as the main collection sound chamber of auscultation, integrates sound chamber 181 as supplementary set sound chamber.
Embodiment 3：
It is described further with reference to Fig. 4, Fig. 5, Fig. 6, Fig. 7, the present invention.
A kind of repeating anti-noise stethoscope head, including listening head body 1, fixing piece 3 and diaphragm 4.Listening head body 1 is equipped with collection sound
Face 10, sound collecting surface 10 are curved surface.Sound collecting surface 10 is equipped with the voice guide hole 11 being connected to 1 outside of listening head body.Listening head body 1 is upper
It is equipped with not in same plane but coaxial the first annular end face 15 and the second annular end face 16 in 10 side of sound collecting surface.First is cyclic annular
Vertical range of the end face 15 apart from voice guide hole 11 is H1, and vertical range of second annular end face 16 apart from voice guide hole 11 is H2, H1
More than H2.The internal diameter of first annular end face 15 is R1, and the internal diameter of the second annular end face 16 is R2, and R1 is more than R2.Positioned at the first ring
Listening head body 1 between shape end face 15 and the second annular end face 16 is equipped with annular groove 12, and the lateral wall of annular groove 12 is equipped with annular groove
Lateral wall screw thread 21.
Fixing piece 3 is equipped with coaxial through-hole 32 and half-via 33, and the outer rim of fixing piece 3 is equipped with external screw thread 35.
Diaphragm 4 is placed in the second annular end face 16, and fixing piece 3 is fixed with the cooperation of listening head body 1, i.e. the outer spiral shell of fixing piece 3
Line 35 and the cooperation of annular groove lateral wall screw thread 21 of listening head body 1 are fixed, and diaphragm 4 is made to be fixed on fixing piece 3 and the second annular end face
Between 16.
First annular end face 15 is higher than the outside peak 41 of fixing piece upper surface 31 and diaphragm.
In use, the audition portion faces 5 that can of the present invention is pressed on to audient form a collection sound region 18.Wherein first
Annular end face 15 is pressed on audition portion faces 5 and tightens audition portion faces 5, keeps the wave audio that internal organs are spread out of stronger.So
The second annular end face 16 is pressed on the audition portion faces 5 after tightening, the second annular end face 16 and sound collecting surface 10 and diaphragm 4 simultaneously afterwards
Between form a collection sound chamber 184.Collect sound chamber based on collection sound chamber 184, is used for auscultation.First annular end face 15, the second looped end
Face 16, sound collecting surface 10 and audition portion faces 5 and diaphragm 4 form collection sound chamber 183, integrate sound chamber 183 as supplementary set sound chamber.
Embodiment 4：
It is described further with reference to Fig. 8, Fig. 9, Figure 10, Figure 11 present invention.
A kind of repeating anti-noise stethoscope head, including listening head body 1, fixing piece 3 and diaphragm 4.
Listening head body 1 is equipped with sound collecting surface 10, and sound collecting surface 10 is curved surface.Sound collecting surface 10 is equipped with and connects outside listening head body 1
Logical voice guide hole 11.It is located at 10 side of sound collecting surface on listening head body 1 to be equipped with not in same plane but the first coaxial annular end face
15 and second annular end face 16.Vertical range of first annular end face 15 apart from voice guide hole 11 be H1, the second annular end face 16 away from
Vertical range from voice guide hole 11 is H2, and H1 is more than H2.The internal diameter of first annular end face 15 be R1, the second annular end face 16 it is interior
Diameter is R2, and R1 is more than R2.On the sound collecting surface 10 of listening head body 1 between the first annular end face 15 and the second annular end face 16
Equipped with listening head body internal thread 13.
Fixing piece 3 is set there are one through-hole 32, and the outer rim of fixing piece 3 is equipped with external screw thread 35.
Diaphragm 4 is placed in the second annular end face 16, and fixing piece 3 is fixed with the cooperation of listening head body 1, i.e. the outer spiral shell of fixing piece 3
Line 35 is fixed with the cooperation of listening head body internal thread 13 on sound collecting surface 10；Diaphragm 4 is set to be fixed in fixing piece 3 and the second looped end
Between face 16.
First annular end face 15 is higher than the outside peak 41 of fixing piece upper surface 31 and diaphragm.
In use, the audition portion faces 5 that can of the present invention is pressed on to audient form a collection sound region 18.Wherein first
Annular end face 15 is pressed on audition portion faces 5 and tightens audition portion faces 5, keeps the wave audio that internal organs are spread out of stronger.So
The second annular end face 16 is pressed on the audition portion faces 5 after tightening, the second annular end face 16 and sound collecting surface 10 and diaphragm 4 simultaneously afterwards
Between form a collection sound chamber 184.Collect sound chamber based on collection sound chamber 184, is used for auscultation.First annular end face 15, sound collecting surface 10, Gu
Determine the upper surface 31 of part and audition portion faces 5 and diaphragm 4 form collection sound chamber 183, integrates sound chamber 183 as supplementary set sound chamber.
Embodiment 5：
It is described further with reference to Figure 12, Figure 13, Figure 14, Figure 15, Figure 16 present invention.
A kind of repeating anti-noise stethoscope head, including listening head body 1 and diaphragm 4.
Listening head body 1 includes cooperate fixed first portion 23 and second portion 24.
First portion 23 is ring-type, is equipped with coaxial through-hole 232 and half-via 233, and half-via 233 is located at the lower part in first portion 23,
The hole wall of half-via 233 is equipped with first portion internal thread 231.The first coaxial annular end face 15 and the second ring are additionally provided in first portion 23
The internal diameter of shape end face 16, the first annular end face 15 is R1, and the internal diameter of the second annular end face 16 is R2, and R1 is more than R2.First is cyclic annular
End face 15 is higher than the second annular end face 16.
Circular step 25 is additionally provided in the outer rim on the top in second portion 24, circular step 25 includes two and is mutually connected vertically
Step side 251 and bench floor 252, step side 251 abut 24 upper surface 242 of second portion, and step side 251 is equipped with second portion
External screw thread 241.
First portion 23 and second portion 24 are fixed by first portion internal thread 231 and 241 screw-thread fit of second portion external screw thread.
Listening head body 1 is equipped with sound collecting surface 10, and sound collecting surface 10 is curved surface, and the region that curved surface surrounds is collection sound region 18, is collected
Sound region is set there are one open end 19, and sound collecting surface 10 is equipped with the voice guide hole 11 being connected to 1 outside of listening head body, voice guide hole 11
In in second portion 24.After first portion 23 and second portion 24 are fixed, 15 to the second annular end face 16 of the first annular end face is remote apart from voice guide hole 11.
Vertical range of first annular end face 15 apart from voice guide hole 11 is H1, vertical range of second annular end face 16 apart from voice guide hole 11
It is more than H2 for H2, H1.
Diaphragm 4 is placed on the upper surface 242 in second portion 24, by the cooperation in first portion 23 and second portion 24, diaphragm 4 is made to be fixed on first
Between portion 23 and second portion 24.After diaphragm 4 is fixed, the first annular end face 15 is higher than the peak 41 on the outside of diaphragm.
In use, the audition portion faces 5 that can of the present invention is pressed on to audient form a collection sound region 18.Wherein first
Annular end face 15 is pressed on audition portion faces 5 and tightens audition portion faces 5, keeps the wave audio that internal organs are spread out of stronger.So
The second annular end face 16 and diaphragm 4 are pressed on the audition portion faces 5 after tightening, the second annular end face 16 and sound collecting surface 10 simultaneously afterwards
And a collection sound chamber 184 is formed between diaphragm 4.Application inside internal organs is directly conducted to collection sound chamber 184 by diaphragm, collects sound chamber
Collect sound chamber based on 184, is used for auscultation.And the first annular end face 15, sound collecting surface 10, the second annular end face 16, diaphragm 4 and audition
Portion faces 5 form 183 supplementary set sound chamber of collection sound chamber.Collect sound chamber 183 by air transmitted, the sound inside internal organs is passed again
It is directed at diaphragm.Further, since the diameter R1 of first annular end face 15 is more than the diameter R2 of the second annular end face 16, i.e. listening head body
1 perimeter in the first annular end face 15 also just increases the solid pair of listening head body 1 than the Zhou Chang great of the second annular end face 16
The conduction total amount of sound.To realize the raising of sound conduction total amount, and the raising of the audio intensity of transmission sound.
Embodiment 6：
It is described further with reference to Figure 17, Figure 18, Figure 19, Figure 20 present invention.
Listening head body 1 includes cooperate fixed first portion 23 and second portion 24.
First portion 23 is ring-type, and through-hole 232 is equipped with along axis, and the lower part outer rim in first portion 23 is equipped with first portion external screw thread 235,
The upper surface in first portion 23 is the first annular end face 15, and the internal diameter of the first annular end face 15 is R1.
Second portion internal thread 243 is additionally provided on the inner edge on the top in second portion 24, the sound collecting surface 10 in second portion 24 is equipped with and can
The voice guide hole 11 that 1 outside of ontology is connected to.The second annular end face 16 is additionally provided on the sound collecting surface 10 in second portion 24.Second annular end face 16
Vertical range apart from voice guide hole 11 is H2.The internal diameter of second annular end face 16 is R2.R2 is less than R1.First annular end face 15 is high
In the second annular end face 16.
First portion 23 and second portion 24 are fixed by first portion external screw thread 2351 and 243 screw-thread fit of second portion internal thread.
Listening head body 1 is equipped with sound collecting surface 10, and sound collecting surface 10 is curved surface, and the region that curved surface surrounds is collection sound region 18, is collected
Sound region is set there are one open end 19.After first portion 23 and second portion 24 are fixed, the first annular end face 15 is apart from the vertical of voice guide hole 11
Distance is H1, and vertical range of second annular end face 16 apart from voice guide hole 11 is H2, and H1 is more than H2.
Diaphragm 4 is placed in second annular end face 16 in second portion 24, by the cooperation in first portion 23 and second portion 24, keeps diaphragm 4 solid
Due between first portion 23 and second portion 24.After diaphragm 4 is fixed, the first annular end face 15 is higher than the peak 41 on the outside of diaphragm.
In use, the audition portion faces 5 that can of the present invention is pressed on to audient form a collection sound region 18.Wherein first
Annular end face 15 is pressed on audition portion faces 5 and tightens audition portion faces 5, keeps the wave audio that internal organs are spread out of stronger.Film
Piece 4 is pressed on the audition portion faces 5 after tightening simultaneously, and a collection sound chamber 184 is formed between the sound collecting surface 10 and diaphragm 4 in second portion,
Sound inside internal organs is directly conducted to collection sound chamber 184 by diaphragm, collects sound chamber based on collection sound chamber 184, is used for auscultation.And first
Annular end face 15, sound collecting surface 10, diaphragm 4 and audition portion faces 5 form 183 supplementary set sound chamber of collection sound chamber.It is logical to collect sound chamber 183
Air transmitted is crossed, the sound inside internal organs is conducted again to diaphragm.Further, since the internal diameter R1 of first annular end face 15 is more than
The internal diameter R2 of second annular end face 16, i.e., the perimeter in the first annular end face 15 of listening head body 1 is than the second annular end face 16
Zhou Chang great also just increases conduction total amount of the solid to sound of listening head body 1.To realize the raising of sound conduction total amount,
And the raising of the audio intensity of transmission sound.
Embodiment 7：
It is described further with reference to Figure 14, Figure 21, Figure 22, Figure 23, Figure 24, Figure 25, Figure 26 present invention.
A kind of repeating anti-noise stethoscope head, including listening head body 1 and diaphragm 4.
Listening head body 1 includes cooperate fixed first portion 23 and second portion 24.
First portion 23 is ring-type, is equipped with coaxial through-hole 232 and half-via 233, and half-via 233 is located at the lower part in first portion 23,
The hole wall of half-via 233 is equipped with first portion internal thread 231.The first coaxial annular end face 15 and the second ring are additionally provided in first portion 23
The internal diameter of shape end face 16, the first annular end face 15 is R1, and the internal diameter of the second annular end face 16 is R2, and R1 is more than R2.First is cyclic annular
End face 15 is higher than the second annular end face 16.
Circular step 25 is additionally provided in the outer rim on the top in second portion 24, the step side 251 of circular step 25 is equipped with second
Portion's external screw thread 241.
First portion 23 and second portion 24 are fixed by first portion internal thread 231 and 241 screw-thread fit of second portion external screw thread.
Listening head body 1 is equipped with sound collecting surface 10, and sound collecting surface 10 is curved surface, and the region that curved surface surrounds is collection sound region 18, is collected
Sound region is set there are one open end 19, and sound collecting surface 10 is equipped with the voice guide hole 11 being connected to 1 outside of listening head body, voice guide hole 11
In in second portion 24.After first portion 23 and second portion 24 are fixed, 15 to the second annular end face 16 of the first annular end face is remote apart from voice guide hole 11.
Vertical range of first annular end face 15 apart from voice guide hole 11 is H1, vertical range of second annular end face 16 apart from voice guide hole 11
It is more than H2 for H2, H1.
Diaphragm 4 is equipped with footing 42 and circular step 43.Footing 42 is placed in the annular groove 245 in second portion 24.The second of first portion 23
The back side of annular end face is pressed on circular step 43, by the cooperation in first portion 23 and second portion 24, make diaphragm 4 be fixed on first portion 23 with
Between second portion 24.After diaphragm 4 is fixed, the first annular end face 15 is higher than the peak 41 on the outside of diaphragm.
In use, the audition portion faces 5 that can of the present invention is pressed on to audient form a collection sound region 18.Wherein first
Annular end face 15 is pressed on audition portion faces 5 and tightens audition portion faces 5, keeps the wave audio that internal organs are spread out of stronger.
Then the second annular end face 16 and diaphragm 4 are pressed on the audition portion faces 5 after tightening, the second annular end face 16 simultaneously
A collection sound chamber 184 is formed between sound collecting surface 10 and diaphragm 4.Application inside internal organs is directly conducted to collection sound chamber by diaphragm
184, collect collection sound chamber based on sound chamber 184, is used for the sound of auscultation low frequency.After increasing pressure to listening head body 1, make diaphragm 4
Diaphragm lower face 44 contradicts annular shoulder 246 so that the volume of collection sound chamber 184 becomes smaller, and can be used for the sound of auscultation high frequency.
And the first annular end face 15, sound collecting surface 10, the second annular end face 16, diaphragm 4 and audition portion faces 5 form collection
Sound chamber 183 integrates sound chamber 183 as supplementary set sound chamber.Collect sound chamber 183 by air transmitted, the sound inside internal organs can be passed again
It is directed at diaphragm.
Further, since the diameter R1 of first annular end face 15 is more than the diameter R2 of the second annular end face 16, i.e. listening head body 1
The perimeter in the first annular end face 15 than the Zhou Chang great of the second annular end face 16, also just increase the solid pair of listening head body 1
The conduction total amount of sound.To realize the raising of sound conduction total amount, and the raising of the audio intensity of transmission sound.
Comparative example：
The project of detection：Stethoscopic acoustic performance.
Experimental products：
The prior art：The KS-400 for Wuxi Kaishun Medical Device Manufacturing Co., Ltd.'s production that can arbitrarily buy in the market
The stethoscope of model,
The present invention：Listening head body is split type, has first portion and the cooperation of second portion, second portion to be equipped with the good circular step of annular groove, diaphragm
Equipped with footing and circular step.
The experimental method of stethoscopic acoustic performance：
1, make the collection sound chamber of stethoscope head（Collect sound region）Open end face source of sound sound mouth, and in the close of source of sound
Connector connection is sealed, collection sound chamber is made（Collect sound region）The connection status of sealing, outlet and the stethoscope collection of source of sound are in source of sound
The vertical range in tone level face is 4mm-6mm.
2, with diameter 10mm, an end of aperture 4mm, the sound guide tube of length 40cm are connected on the leading note connector of stethoscope head
On, it is another to terminate on audio recipient.
3, source of sound acoustical generator and audio receiver are opened, the numerical value for writing down audio receiver is sent out with this numerical value divided by source of sound again
The standard figures of sound device can thereby obtain stethoscope acoustic performance number.
Conclusion：
Work as source of sound：114 dB frequencies：When 1000HZ, stethoscope acoustic performance of the present invention is better than prior art stethoscope
4.3%
Work as source of sound：94 dB frequencies：When 750HZ, stethoscope acoustic performance of the present invention is better than prior art stethoscope 4.4%
Structure of the invention increases compared with the prior art in acoustic performance.
The project of detection：The anti-external noise performance of stethoscope.
Experimental products：The KS-400 for Wuxi Kaishun Medical Device Manufacturing Co., Ltd.'s production that can arbitrarily buy in the market
The stethoscope of model,
The present invention：Listening head body is split type, is equipped with first portion and second portion, and second portion of first portion matches, and second portion is equipped with annular groove
And circular step, diaphragm are equipped with footing and circular step.
The test method of stethoscopic anti-external noise performance：
1, with stethoscope head collection sound chamber, this back side is placed on above the sealed connecting component of pronunciation source, makes the back side of stethoscope head
The sound mouth of face source of sound, and connected in the sealed connecting component of source of sound, make collection sound chamber（Collect sound region）It is in sealing with source of sound
Connection status, outlet and the stethoscope of source of sound integrate the vertical range in tone level face as 8mm-10mm.
2, with diameter 10mm, an end of aperture 4mm, the sound guide tube of length 40cm are connected on the leading note connector of stethoscope head
On, it is another to terminate on audio recipient.
3, source of sound acoustical generator and audio receiver are opened, the numerical value for writing down audio receiver is sent out with this numerical value divided by source of sound again
The standard figures of sound device can thereby obtain the performance number of the anti-external noise of stethoscope.
Conclusion：
Source of sound：114 dB frequencies：When 1000HZ, stethoscope noiseproof feature of the present invention is better than original technology stethoscope
6.5%。
Source of sound：94 dB frequencies：When 750HZ, stethoscope noiseproof feature of the present invention is better than original technology stethoscope 5%.This
Inventive structure increases compared with the prior art in anti-external noise performance.
Claims (8)
1. a kind of repeating anti-noise stethoscope head, including listening head body, the listening head body is equipped with sound collecting surface, on the sound collecting surface
Equipped with the voice guide hole being connected to listening head body outside, which is characterized in that set positioned at the sound collecting surface side on the listening head body
Have at least two not in conplane annular end face, wherein the annular end face is connected to form recess with the sound collecting surface
Collecting sound region, for the collection sound region tool there are one outside open end, the first annular end face is located at the outermost of the open end,
First annular end face is used to tighten the contact surface with receptor, so that the sound inside internal organs is enhanced in outflow, enhances
Stethoscope acquires the intensity of audio.
2. a kind of repeating anti-noise stethoscope head according to claim 1, which is characterized in that described not conplane
Annular end face is coaxial annular end face.
3. a kind of repeating anti-noise stethoscope head according to claim 1 or 2, which is characterized in that the looped end bread
The first annular end face and the second annular end face are included, the internal diameter of first annular end face is more than the interior of second annular end face
Diameter, and the second annular end face to the voice guide hole vertical range than the first annular end face to the vertical range of the voice guide hole
It is small.
4. a kind of repeating anti-noise stethoscope head according to claim 1 or 2, which is characterized in that further include fixing piece and
Diaphragm, the annular end face include the first annular end face and the second annular end face, and the internal diameter of first annular end face is more than institute
State the internal diameter of the second annular end face, and the second annular end face to the voice guide hole vertical range than the first annular end face to described
The vertical range of voice guide hole is small, and the diaphragm is fixed between second annular end face and fixing piece by the fixing piece, and
First annular end face is higher than the outside peak of fixing piece upper surface and the diaphragm.
5. a kind of repeating anti-noise stethoscope head according to claim 1 or 2, which is characterized in that further include diaphragm, it is described
Listening head body includes that the fixed first portion of mutual cooperation and second portion, the diaphragm are fixed between the first portion and the second portion,
The first portion is used to enhance the intensity of stethoscope acquisition audio.
6. a kind of repeating anti-noise stethoscope head according to claim 5, which is characterized in that the first portion is ring-type, institute
It includes the first annular end face and the second annular end face to state annular end face, and the internal diameter of first annular end face is more than second ring
The internal diameter of shape end face, and the second annular end face to the voice guide hole vertical range than the first annular end face to the voice guide hole
Vertical range is small；First annular end face and second annular end face are respectively positioned in the first portion；The first portion is additionally provided with
One axial half-via, the half-via are located at below second annular end face；The second portion makes with half-via cooperation
The diaphragm is fixed in the half-via, and first annular end face is higher than the outside peak of the diaphragm, and described the
One annular end face and the diaphragm contact audition portion faces simultaneously.
7. a kind of repeating anti-noise stethoscope head according to claim 5, which is characterized in that the first portion is ring-type, institute
It includes the first annular end face and the second annular end face to state annular end face, and the internal diameter of first annular end face is more than second ring
The internal diameter of shape end face, and the second annular end face to the voice guide hole vertical range than the first annular end face to the voice guide hole
Vertical range is small；First annular end face is located in the first portion, and second annular end face is located in the second portion；It is described
First annular end face is located at the top in the first portion, and the lower part in the first portion coordinates with the second portion, and the diaphragm is made to be fixed on
In second annular end face, first annular end face is higher than the outside peak of the diaphragm.
8. a kind of repeating anti-noise stethoscope head according to claim 5, which is characterized in that the diaphragm is equipped with cyclic annular platform
Rank and footing；The annular end face includes the first annular end face and the second annular end face, and the internal diameter of first annular end face is big
In the internal diameter of second annular end face, and the second annular end face to the voice guide hole vertical range extremely than the first annular end face
The vertical range of the voice guide hole is small；The sound collecting surface side in the second portion is equipped with annular groove and annular shoulder, the footing of the diaphragm
It is placed in the annular groove；The lower part in the first portion is equipped with axial half-via, and the outer rim of the open end side in the second portion is equipped with
The step surface of circular step, the circular step is equipped with screw thread；The hole wall of the half-via is equipped with and screw thread on step surface
Matched screw thread, the first portion and second portion screw-thread fit, make the half-via bottom surface in the first portion be pressed on the step of the diaphragm
On.
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| CN201410722617.4A CN105708488B (en) | 2014-12-02 | 2014-12-02 | A kind of repeating anti-noise stethoscope head |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107510472A (en) * | 2017-08-22 | 2017-12-26 | 丁向峰 | Accurate stethoscope |
| CN107854136A (en) * | 2017-11-24 | 2018-03-30 | 江门大诚医疗器械有限公司 | One kind is applied to stethoscopic metal vibration diaphragm structure |
| CN211633336U (en) * | 2019-05-21 | 2020-10-09 | 无锡市凯顺医疗器械制造有限公司 | Multi-audio stethoscope listening head |
| CN211094224U (en) * | 2019-05-21 | 2020-07-28 | 无锡市凯顺医疗器械制造有限公司 | Stethoscope head matching structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7317331U (en) * | 1972-06-23 | 1973-08-09 | Kirchner & Wilhelm, 7000 Stuttgart | STETHOSCOPE |
| DE8504877U1 (en) * | 1985-02-21 | 1986-02-06 | Wilhelm Haselmeier Gmbh & Co, 7000 Stuttgart | Double tube stethoscope |
| DE20308905U1 (en) * | 2003-06-06 | 2003-09-25 | Erka Kallmeyer Medizintechnik | Stethoscope, has chest piece containing two membranes made from different material |
| CN2657587Y (en) * | 2003-11-03 | 2004-11-24 | 蔡世贤 | Electronic stethscopic for fetal heart sound |
| DE202004008577U1 (en) * | 2004-05-29 | 2004-12-23 | Barthelmes, Arno | double stethoscope |
| CN101647712B (en) * | 2009-09-03 | 2011-11-30 | 单希杰 | Combined membrane and its matching component with stethoscope head |
| 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 |
| 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 |
| JP2012249995A (en) * | 2011-06-01 | 2012-12-20 | Tanaka Sangyo Kk | Diaphragm for stethoscope head |
| CN202235434U (en) * | 2011-06-14 | 2012-05-30 | 上海麦迪芬医疗保健器材有限公司 | Multifunctional stethoscope head |
| CN202263005U (en) * | 2011-08-15 | 2012-06-06 | 温州康诺克医疗器械有限公司 | Multipurpose stethoscope head with high sensitivity |
| CN202553975U (en) * | 2012-05-15 | 2012-11-28 | 无锡市凯顺医疗器械制造有限公司 | Audio-adjustable stethoscope head structure assembly |
| CN203619584U (en) * | 2013-12-23 | 2014-06-04 | 无锡市凯顺医疗器械制造有限公司 | Integrally-formed echometer head body of echometer |
| CN204274495U (en) * | 2014-12-02 | 2015-04-22 | 无锡市凯顺医疗器械制造有限公司 | A kind of repeating anti-noise stethoscope tin |
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