CN217659919U - Stethoscope sound amplifying device and damage prevention device thereof - Google Patents
Stethoscope sound amplifying device and damage prevention device thereof Download PDFInfo
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- CN217659919U CN217659919U CN202221117963.6U CN202221117963U CN217659919U CN 217659919 U CN217659919 U CN 217659919U CN 202221117963 U CN202221117963 U CN 202221117963U CN 217659919 U CN217659919 U CN 217659919U
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- 230000002265 prevention Effects 0.000 title claims abstract description 21
- 230000000903 blocking effect Effects 0.000 claims abstract description 66
- 230000005540 biological transmission Effects 0.000 claims abstract description 31
- 238000009413 insulation Methods 0.000 claims description 15
- 238000004140 cleaning Methods 0.000 claims description 12
- 230000003321 amplification Effects 0.000 claims description 9
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 8
- 229920000742 Cotton Polymers 0.000 claims description 6
- 238000000034 method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 23
- 210000002939 cerumen Anatomy 0.000 description 11
- 206010050337 Cerumen impaction Diseases 0.000 description 8
- 239000000428 dust Substances 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000002555 auscultation Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 210000002458 fetal heart Anatomy 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to a stethoscope sound amplifying device and a damage prevention device thereof, which relate to the technical field of medical instruments; the stethoscope public address set includes the damage prevention device, the damage prevention device includes the megaphone, the left side of megaphone is equipped with the sound transmission piece, the surface of sound transmission piece is put around central point and has evenly seted up a plurality of and worn the sound hole, the left end swing joint of sound transmission piece has the sound blocking piece, the sound blocking piece surface corresponds wears the sound hole position and has seted up the aperture, the inside of sound blocking piece is equipped with the guide arm, the one end fixedly connected with sound insulating block of guide arm, sound insulating block and sound blocking piece swing joint. This stethoscope public address set promotes the isolated aperture of puigging through the guide arm, and the puigging plays the effect of hindering the sound, and the pinion is used for driving the rotation of piece of hindering the sound for the puigging rotates the sound hole position of wearing of damage, reaches the sound hole of wearing of isolated damage, avoids the effect that the sound hole of wearing of damage disturbs the sound conduction.
Description
Technical Field
The utility model relates to a stethoscope public address set and loss prevention device thereof relates to medical instrument technical field.
Background
The stethoscope is the most commonly used diagnostic tool for internal and external gynecologists and is the mark of the doctors. The conventional stethoscope has small sound and sometimes inaccurate listening, so a sound amplifying device is added into the stethoscope.
According to the stethoscope of a kind of self-carrying public address set that chinese patent publication No. CN214856853U discloses, through set up megaphone, sound transmission piece and tuning piece in the pick-up head of stethoscope, stir through the tuning plectrum, drive the tuning piece at the rotation of sound transmission piece surface for the sound hole is worn in the inboard sound cover of hindering sound hole, the area through covering increases or reduces the volume of auscultation, reaches the effect that promotes the convenience of adjusting the volume by a wide margin. However, since the sound conduction sheet is internally provided with the plurality of sound through holes, when one of the sound through holes is blocked or damaged, sound transmission is disturbed, and the sound amplification effect is influenced.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a stethoscope public address set and loss prevention device thereof possesses the advantage of strengthening life, has solved the single sound hole that wears that mentions in the above-mentioned background art and has taken place to damage, can influence the problem of auscultation effect.
In order to achieve the above object, the utility model provides a following technical scheme: a stethoscope sound amplifying device comprises a main body device, wherein a cleaning device is arranged at the outer end of the main body device, and a damage prevention device is arranged inside the main body device;
the main part device is the stethoscope body, and through being provided with cleaning device, the doctor of being convenient for clears up the earwax before using the stethoscope, keeps the health, and through being provided with the bad device of loss prevention, the damage takes place to damage and leads to sound conduction not good for a certain sound hole of prevention, and the sound hole of loss prevention device is convenient for block the damage to sound conduction.
The damage preventing device includes: the loudspeaker comprises a loudspeaker, a sound transmission piece, sound through holes, a sound blocking piece, small holes, guide rods, a sound insulating block, a large gear and a small gear, wherein the sound transmission piece is arranged on the left side of the loudspeaker, a plurality of sound through holes are uniformly formed in the surface of the sound transmission piece around the central position, the left end of the sound transmission piece is movably connected with the sound blocking piece, the small holes are formed in the surface of the sound blocking piece corresponding to the sound through holes, the guide rods are arranged inside the sound blocking piece, the sound insulating block is fixedly connected to one end of each guide rod and movably connected with the sound blocking piece, the large gear is fixedly connected to the surface of the sound blocking piece, and the small gear is connected to the right end of the sound blocking piece through gear meshing;
the sound blocking piece plays spacing effect, and the guide arm promotes the isolated aperture of sound blocking piece, and the sound blocking piece plays the effect of sound blocking, and the pinion is used for driving the sound blocking piece rotation for the sound blocking piece rotates the sound hole position of wearing of damage, reaches the sound hole of wearing of isolated damage, avoids the sound hole of wearing of damage to disturb the effect of sound conduction.
The cleaning device includes: casing, pivot, knob, connecting rod, stopper, shrinkage pool, logical groove, bracing piece, straight-bar, fixture block, button, spring, sanitary napkin and safety cover, the inside swing joint of casing has the pivot, the right-hand member fixedly connected with knob of pivot, the left end fixedly connected with connecting rod of pivot, the left end fixedly connected with stopper of connecting rod, the stopper all is provided with the shrinkage pool with the upper and lower both ends of connecting rod, the connecting rod is equipped with the logical groove of lining up each other with the inside of stopper, leads to the straight-bar of inside swing joint of groove two symmetric distributions, the left end fixedly connected with fixture block of straight-bar, the right-hand member fixedly connected with button of straight-bar, two the right-hand member of straight-bar inclines in opposite directions and is equipped with the spring, the sanitary napkin has been cup jointed to the surface of stopper, the surface of sanitary napkin is equipped with the safety cover.
The sanitary cotton is used for clearing up the earwax, and the stopper is used for spacing sanitary cotton, thereby the knob is convenient for rotate the pivot and is driven sanitary cotton clearance earwax, and the safety cover is used for isolated dust, avoids polluting the sanitary cotton, and the button is used for adjusting the fixture block, and the spring is used for spacing the straight-bar, reaches the clearance earwax, keeps sanitary effect.
Preferably, the main body device comprises a Y-shaped conduction tube, the upper end of the Y-shaped conduction tube is fixedly connected with an ear cap, and the other end of the Y-shaped conduction tube is fixedly connected with a sound pickup head.
The main body device is a constituent part of a stethoscope, belongs to the existing mechanism, and is not described in detail herein.
Preferably, a shaft rod is movably connected to the inner surface of the pinion, a protection member is arranged on the outer surface of the shaft rod, and a cover plate is hinged to the right end of the protection member.
The protecting piece and the cover plate are used for protecting the pinion, so that the rotation of the sound blocking piece caused by external reasons is avoided, and sound conduction is blocked.
Preferably, the microphone is located inside the pick-up head.
Preferably, the rear end of the shell is movably connected with the Y-shaped conduction tube, and the front end of the shell is fixedly connected with a fixing piece.
The fixing piece is worn on the ear to play a role in supporting and limiting.
Preferably, the one end of fixture block passes the shrinkage pool on the stopper and extends to the outer end of stopper, the one end of button passes the shrinkage pool on the connecting rod and extends to the outer end of connecting rod.
The fixture block extends to the outer end of the limiting block, so that the sanitary napkin is limited conveniently, and the button extends to the outer end of the connecting rod so as to control the fixture block to stretch out and draw back conveniently.
Preferably, the protective cover is clamped with the shell.
A damage prevention apparatus of a stethoscope amplification device, comprising: the loudspeaker comprises a loudspeaker, a sound transmission piece, sound transmission holes, a sound blocking piece, small holes, guide rods, a sound insulation block, a large gear and a small gear, wherein the sound transmission piece is arranged on the left side of the loudspeaker, a plurality of sound transmission holes are uniformly formed in the surface of the sound transmission piece around the central position, the left end of the sound transmission piece is movably connected with the sound blocking piece, the small holes are formed in the surface of the sound blocking piece corresponding to the sound transmission holes, the guide rods are arranged inside the sound blocking piece, the sound insulation block is fixedly connected with one end of each guide rod, the sound insulation block is movably connected with the sound blocking piece, the large gear is fixedly connected with the surface of the sound blocking piece, and the right end of the sound blocking piece is connected with the small gear through gear meshing.
Compared with the prior art, the utility model provides a stethoscope public address set and loss prevention device thereof possesses following beneficial effect:
1. this stethoscope public address set plays spacing effect through being provided with the sound blocking piece, and the guide arm promotes the isolated aperture of sound insulating block, and the sound insulating block plays the effect of sound blocking, and the pinion is used for driving the sound blocking piece rotation for the sound insulating block rotates the sound hole position of wearing of damage, reaches the sound hole of wearing of isolated damage, avoids the sound hole of wearing of damage to disturb the effect of sound conduction, guarantees comparatively stable public address effect.
2. This stethoscope public address set is used for clearing up the cerumen through being provided with the sanitary napkin, and the stopper is used for carrying on spacingly to the sanitary napkin, thereby the knob is convenient for rotate the pivot and drives the sanitary napkin and clear up the cerumen, and the safety cover is used for isolated dust, avoids polluting the sanitary napkin, and the button is used for adjusting the fixture block, and the spring is used for spacing the straight-bar, reaches the clearance cerumen, keeps sanitary effect.
Drawings
Fig. 1 is a schematic sectional view of the structure damage prevention device of the present invention;
FIG. 2 is a schematic sectional view of the sound-blocking sheet of the present invention;
FIG. 3 is a schematic sectional view of the sound-transmitting piece of the present invention;
FIG. 4 is a perspective view of the present invention;
FIG. 5 is a perspective view of the cleaning device of the present invention;
fig. 6 is a schematic sectional view of the structure cleaning device of the present invention.
Wherein: 1. a main body device; 101. a Y-shaped conducting tube; 102. ear muffs; 103. a sound pickup head; 2. a cleaning device; 201. a housing; 202. a rotating shaft; 203. a knob; 204. a connecting rod; 205. a limiting block; 206. concave holes; 207. a through groove; 209. a straight rod; 210. a clamping block; 211. a button; 212. a spring; 213. a sanitary napkin; 214. a protective cover; 3. a damage prevention device; 301. A loudspeaker; 302. a sound transmitting sheet; 303. a sound through hole; 304. a sound-blocking sheet; 305. a small hole; 306. a guide bar; 307. a sound insulation block; 308. a bull gear; 309. a pinion gear.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the embodiments described are only a part of the present invention, and not all of it. Based on the specific embodiments in the present invention, all other specific embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
Detailed description of the invention
The following is a specific embodiment of a stethoscope amplifying device.
Referring to fig. 1-6, a stethoscope amplifying device includes a main body unit 1, a cleaning unit 2 disposed at an outer end of the main body unit 1, and an anti-damage unit 3 disposed inside the main body unit 1;
through the technical scheme, the main body device 1 is a stethoscope body, the model of the stethoscope body is HS-30A, the stethoscope is a medical professional multifunctional heart-lung breathing stethoscope for pregnant women with fetal heart pulse and pediatric heart pulses, the purpose of the application is not to improve HS-30A, but to design the cleaning device 2 on the upper side of the main body device 1 and design the shielding device 3 inside the main body device 1, the main body device 1 is not limited to HS-30A, the main body device 1 drawn in the drawing 4 is not HS-30A, through being provided with the cleaning device 2, a doctor can clean earwax before using the stethoscope and keep sanitation conveniently, and through being provided with the damage prevention device 3, the sound conduction is poor due to the fact that a certain sound through hole 303 is damaged, and the damage prevention device 3 is convenient for blocking the damaged sound through hole 303 to conduct sound.
The damage preventing device 3 includes: the loudspeaker comprises a loudspeaker 301, a sound transmission piece 302, sound transmission holes 303, a sound blocking piece 304, small holes 305, a guide rod 306, a sound insulation block 307, a large gear 308 and a small gear 309, wherein the sound transmission piece 302 is arranged on the left side of the loudspeaker 301, the surface of the sound transmission piece 302 is uniformly provided with a plurality of sound transmission holes 303 around the central position, the left end of the sound transmission piece 302 is movably connected with the sound blocking piece 304, the surface of the sound blocking piece 304 is provided with the small holes 305 corresponding to the positions of the sound transmission holes 303, the guide rod 306 is arranged inside the sound blocking piece 304, one end of the guide rod 306 is fixedly connected with the sound insulation block 307, the sound insulation block 307 is movably connected with the sound blocking piece 304, the surface of the sound blocking piece 304 is fixedly connected with the large gear 308, and the right end of the sound blocking piece 304 is meshed with the small gear 309 through the large gear 308;
through above-mentioned technical scheme, sound blocking sheet 304 plays spacing effect, insert sound blocking sheet 304 through a thin needle and promote guide arm 306, guide arm 306 promotes the isolated aperture 305 of puigging 307, puigging 307 plays the effect of sound blocking, pinion 309 is used for driving sound blocking sheet 304 rotatory, make puigging 307 rotate the sound hole 303 position of wearing of damage, reach the sound hole 303 of wearing of isolated damage, avoid wearing the sound hole 303 of damage to disturb the effect of sound conduction.
The cleaning device 2 includes: the shell 201, a rotating shaft 202, a knob 203, a connecting rod 204, a limiting block 205, a concave hole 206, a through groove 207, a straight rod 209, a clamping block 210, a button 211, a spring 212, a sanitary napkin 213 and a protective cover 214, the inside of the shell 201 is movably connected with the rotating shaft 202, the right end of the rotating shaft 202 is fixedly connected with the knob 203, the left end of the rotating shaft 202 is fixedly connected with the connecting rod 204, the left end of the connecting rod 204 is fixedly connected with the limiting block 205, the limiting block 205 and the upper end and the lower end of the connecting rod 204 are both provided with the concave hole 206, the connecting rod 204 and the limiting block 205 are internally provided with the through groove 207 which are communicated with each other, the through groove 207 is internally and movably connected with the two straight rods 209 which are symmetrically distributed, the left end of the straight rod 209 is fixedly connected with the button 210, the right end of the straight rod 209 is oppositely provided with the spring 212, the outer surface of the limiting block 205 is sleeved with the sanitary napkin 213, and the outer surface of the sanitary napkin 213 is provided with the protective cover 214.
Through above-mentioned technical scheme, sanitary napkin 213 is used for clearing up the earwax, and stopper 205 is used for spacing sanitary napkin 213, thereby knob 203 is convenient for rotate pivot 202 and is driven sanitary napkin 213 clearance earwax, and safety cover 214 is used for isolated dust, avoids polluting sanitary napkin 213, and button 211 is used for adjusting fixture block 210, and spring 212 is used for spacing straight-bar 209, reaches the clearance earwax, keeps sanitary effect.
Specifically, the main body device 1 includes a Y-shaped conductive tube 101, an ear cap 102 fixedly connected to an upper end of the Y-shaped conductive tube 101, and a sound pickup head 103 fixedly connected to the other end of the Y-shaped conductive tube 101.
Through the above technical solution, the main body device 1 is a constituent part of a stethoscope, belongs to an existing mechanism, and is not described herein in any greater detail.
Specifically, a shaft rod is movably connected to an inner surface of the pinion 309, a protection member is provided on an outer surface of the shaft rod, and a cover plate is hinged to a right end of the protection member.
Through the technical scheme, the protecting piece and the cover plate are used for protecting the pinion 309, the sound blocking piece 304 is prevented from rotating due to external reasons, and sound conduction is blocked.
Specifically, the microphone 301 is located inside the pickup head 103.
Specifically, the rear end of the casing 201 is movably connected with the Y-shaped conducting tube 101, and the front end of the casing 201 is fixedly connected with a fixing member.
Through above-mentioned technical scheme, the mounting is worn on the ear, plays and supports spacing effect.
Specifically, one end of the latch 210 passes through the concave hole 206 on the limiting block 205 and extends to the outer end of the limiting block 205, and one end of the button 211 passes through the concave hole 206 on the connecting rod 204 and extends to the outer end of the connecting rod 204.
Through the technical scheme, the fixture block 210 extends to the outer end of the limiting block 205, so that the sanitary napkin 213 is limited conveniently, and the button 211 extends to the outer end of the connecting rod 204, so that the fixture block 210 is controlled to stretch conveniently.
Specifically, the protective cover 214 is engaged with the housing 201.
When the sound insulation structure is used, the cover plate is opened, the guide rod 306 is pushed to enable the sound insulation block 307 to cover the small hole 305, the small gear 309 is rotated, and the large gear 308 enables the sound insulation sheet 304 to rotate, so that the sound insulation block 307 rotates to the position of the damaged sound penetrating hole 303, the damaged sound penetrating hole 303 is isolated, and the effect that the damaged sound penetrating hole 303 interferes sound conduction is avoided.
Detailed description of the invention
The following is a specific embodiment of a damage prevention device of a stethoscope amplification device, which can be implemented independently, and has a key device of the stethoscope amplification device disclosed as a specific embodiment.
A damage prevention apparatus of a stethoscope amplification device, comprising: the loudspeaker comprises a loudspeaker 301, a sound conduction piece 302, sound holes 303, a sound blocking piece 304, small holes 305, a guide rod 306, a sound insulation block 307, a large gear 308 and a small gear 309, wherein the sound conduction piece 302 is arranged on the left side of the loudspeaker 301, the sound holes 303 are uniformly formed in the surface of the sound conduction piece 302 around the center position, the sound blocking piece 304 is movably connected to the left end of the sound conduction piece 302, the small holes 305 are formed in the surface of the sound blocking piece 304 corresponding to the positions of the sound holes 303, the guide rod 306 is arranged inside the sound blocking piece 304, the sound insulation block 307 is fixedly connected to one end of the guide rod 306, the sound insulation block 307 is movably connected with the sound blocking piece 304, the large gear 308 is fixedly connected to the surface of the sound blocking piece 304, and the small gear 309 is meshed with the right end of the sound blocking piece 304 through the large gear 308.
Through above-mentioned technical scheme, sound blocking piece 304 plays spacing effect, insert sound blocking piece 304 through a thin needle and promote guide arm 306, guide arm 306 promotes the isolated aperture 305 of sound proof block 307, sound proof block 307 plays the effect of sound blocking, pinion 309 is used for driving sound blocking piece 304 rotatoryly for sound proof block 307 rotates the sound hole 303 position of wearing of damage, reach the sound hole 303 of wearing of isolated damage, avoid the sound hole 303 of wearing of damage to disturb the effect of sound conduction.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A stethoscope amplification device, comprising a main body device (1), characterized in that: the outer end of the main body device (1) is provided with a cleaning device (2), and the interior of the main body device (1) is provided with an anti-damage device (3);
the damage prevention device (3) comprises: the loudspeaker comprises a loudspeaker (301), a sound transmission piece (302), sound transmission holes (303), a sound blocking piece (304), small holes (305), guide rods (306), a sound insulating block (307), a large gear (308) and small gears (309), wherein the sound transmission piece (302) is arranged on the left side of the loudspeaker (301), a plurality of sound transmission holes (303) are uniformly formed in the surface of the sound transmission piece (302) around the center position, the left end of the sound transmission piece (302) is movably connected with the sound blocking piece (304), the small holes (305) are formed in the surface of the sound blocking piece (304) corresponding to the positions of the sound transmission holes (303), the guide rods (306) are arranged inside the sound blocking piece (304), one end of each guide rod (306) is fixedly connected with the sound insulating block (307), the sound insulating block (307) is movably connected with the sound blocking piece (304), the large gear (308) is fixedly connected to the surface of the sound blocking piece (304), and the right end of the sound blocking piece (304) is connected with the small gear (309) through the large gear (308) in a meshing manner;
the cleaning device (2) comprises: a shell (201), a rotating shaft (202), a knob (203), a connecting rod (204), a limiting block (205), a concave hole (206), a through groove (207), a straight rod (209), a fixture block (210), a button (211), a spring (212), a sanitary cotton (213) and a protective cover (214), a rotating shaft (202) is movably connected inside the shell (201), the right end of the rotating shaft (202) is fixedly connected with a knob (203), the left end of the rotating shaft (202) is fixedly connected with a connecting rod (204), the left end of the connecting rod (204) is fixedly connected with a limiting block (205), concave holes (206) are arranged at the upper end and the lower end of the limiting block (205) and the connecting rod (204), a through groove (207) which is communicated with each other is arranged inside the connecting rod (204) and the limiting block (205), two straight rods (209) which are symmetrically distributed are movably connected inside the through groove (207), a clamping block (210) is fixedly connected at the left end of the straight rod (209), the right ends of the straight rods (209) are fixedly connected with buttons (211), springs (212) are arranged on the opposite sides of the right ends of the two straight rods (209), the outer surface of the limiting block (205) is sleeved with a sanitary napkin (213), the outer surface of the sanitary cotton (213) is provided with a protective cover (214).
2. A stethoscope amplifying device according to claim 1, wherein: the main body device (1) comprises a Y-shaped conducting tube (101), the upper end of the Y-shaped conducting tube (101) is fixedly connected with an ear cap (102), and the other end of the Y-shaped conducting tube (101) is fixedly connected with a pickup head (103).
3. A stethoscope amplification device according to claim 1, wherein: a shaft rod is movably connected to the inner surface of the pinion (309), a protection piece is arranged on the outer surface of the shaft rod, and a cover plate is hinged to the right end of the protection piece.
4. A stethoscope amplifying device according to claim 1, wherein: the loudspeaker (301) is located inside the pick-up head (103).
5. A stethoscope amplifying device according to claim 1, wherein: the rear end of the shell (201) is movably connected with the Y-shaped conducting pipe (101), and the front end of the shell (201) is fixedly connected with a fixing piece.
6. A stethoscope amplification device according to claim 1, wherein: one end of the clamping block (210) penetrates through the concave hole (206) in the limiting block (205) and extends to the outer end of the limiting block (205), and one end of the button (211) penetrates through the concave hole (206) in the connecting rod (204) and extends to the outer end of the connecting rod (204).
7. A stethoscope amplification device according to claim 1, wherein: the protective cover (214) is clamped with the shell (201).
8. The utility model provides a stethoscope public address set's loss prevention device which characterized in that: the method comprises the following steps: megaphone (301), sound conduction piece (302), sound passing hole (303), sound blocking piece (304), aperture (305), guide arm (306), sound insulating block (307), gear wheel (308) and pinion (309), the left side of megaphone (301) is equipped with sound conduction piece (302), a plurality of sound passing hole (303) have evenly been seted up around central point on the surface of sound conduction piece (302), the left end swing joint of sound conduction piece (302) has sound blocking piece (304), aperture (305) have been seted up to sound passing hole (303) position in correspondence in sound blocking piece (304) surface, the inside of sound blocking piece (304) is equipped with guide arm (306), the one end fixedly connected with of guide arm (306) gives sound insulation block (307), sound insulating block (307) and sound blocking piece (304) swing joint, the fixed surface of sound blocking piece (304) is connected with gear wheel (308), the right-hand member of sound blocking piece (304) is connected with pinion (309) through gear wheel (308) meshing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221117963.6U CN217659919U (en) | 2022-05-10 | 2022-05-10 | Stethoscope sound amplifying device and damage prevention device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221117963.6U CN217659919U (en) | 2022-05-10 | 2022-05-10 | Stethoscope sound amplifying device and damage prevention device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217659919U true CN217659919U (en) | 2022-10-28 |
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ID=83736903
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221117963.6U Expired - Fee Related CN217659919U (en) | 2022-05-10 | 2022-05-10 | Stethoscope sound amplifying device and damage prevention device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217659919U (en) |
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2022
- 2022-05-10 CN CN202221117963.6U patent/CN217659919U/en not_active Expired - Fee Related
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Granted publication date: 20221028 |