CN219439176U

CN219439176U - Noise-proof stethoscope

Info

Publication number: CN219439176U
Application number: CN202222337872.XU
Authority: CN
Inventors: 王涛; 孙培鸣; 刘晓明; 高俊峰; 高明杰
Original assignee: Characteristic Medical Center Of Pla Strategic Support Force
Current assignee: Characteristic Medical Center Of Pla Strategic Support Force
Priority date: 2022-09-02
Filing date: 2022-09-02
Publication date: 2023-08-01
Anticipated expiration: 2032-09-02

Abstract

The utility model discloses an anti-noise stethoscope, which relates to the technical field of stethoscopes and comprises a rubber tube, wherein both ends of the rubber tube are provided with sound transmission tubes, and the other ends of the sound transmission tubes are provided with earplugs; still include the earmuff, the earmuff is including each other being concentric circles's inner ring, outer loop, inner ring threaded connection is in on the sound transmission pipe just the earmuff is located one side of earplug, annular region between inner ring, the outer loop forms the sound insulation cavity, the inside packing of sound insulation cavity has silica gel mud and keeps away from the one end of earplug and be provided with the rubber membrane, the rubber membrane is connected with the flexible film hot melt of the outside parcel of silica gel mud. According to the utility model, the rubber film is arranged at one end of the sound insulation cavity between the inner ring and the outer ring of the earmuff, and the silica gel mud wrapped by the flexible film is filled in the sound insulation cavity, so that the silica gel mud can be deformed adaptively according to the shape of the entrance of the auditory canal when the rubber film is extruded, and a better noise-proof effect is realized.

Description

Noise-proof stethoscope

Technical Field

The utility model relates to the technical field of stethoscopes, in particular to an anti-noise stethoscopes.

Background

The stethoscope is the most commonly used diagnostic tool for internal and external women doctors, is a mark of the doctor, and modern medicine begins with the utility model of the stethoscope and mainly comprises a sound pick-up part, a conduction part and a sound listening part. For example, chinese issued patent number CN204931708U discloses an anti-noise stethoscope comprising: a listening device comprising an earplug and an earmuff, the earmuff being fastened to the outside of the earplug; the sensing cavity head is provided with a pickup film at the front end, a housing is arranged on the back of the sensing cavity head, the opening end of the housing is flush with the plane where the pickup film is positioned so as to contain the pickup film in the housing, and a soft sealing ring is arranged at the edge of the opening end of the housing; a sound transmission tube connecting the sensing cavity head and the earplug; the sound transmission tube is a double-layer tube with an interlayer, and the double-layer tube is formed by sleeving an outer tube and an inner tube. According to the utility model, the earmuffs are arranged outside the earplugs and are buckled outside the ear canals, so that the earplugs are aligned to the ear canals to listen, the earplugs are prevented from being plugged into the ear canals, the use comfort of the listening device is improved, the ears are isolated from the outside, the interference of external noise is reduced, and the silencing effect is achieved.

However, in the outdoor special environments such as on the helicopter and the sand storm exposure, noise interference is more likely to appear on the stethoscope, when the stethoscope is used, ears are required to be blocked by the earmuffs, under the condition of long auscultation time, the small auditory meatus is easy to be extruded at the entrance of the auditory meatus, wearing is very uncomfortable, even the auditory meatus is distending and painful, and when the entrance of the auditory meatus is larger, the blocking performance is poor, so that the noise reduction effect is poor, and the auscultation result is influenced.

Disclosure of Invention

The present utility model is directed to a noise-proof stethoscope for solving the above-mentioned problems of the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the anti-noise stethoscope comprises a rubber tube, wherein both ends of the rubber tube are provided with sound transmission tubes, and the other ends of the sound transmission tubes are provided with earplugs; still include the earmuff, the earmuff is including each other being concentric circles's inner ring, outer loop, inner ring threaded connection is in on the sound transmission pipe just the earmuff is located one side of earplug, annular region between inner ring, the outer loop forms the sound insulation cavity, the inside packing of sound insulation cavity has silica gel mud and keeps away from the one end of earplug and be provided with the rubber membrane, the rubber membrane is connected with the flexible film hot melt of the outside parcel of silica gel mud.

In some embodiments, the inner wall of the inner ring is provided with an internal thread, and the outer wall of the sound transmission tube is provided with an external thread adapted to the internal thread.

In some embodiments, two connecting frames are symmetrically arranged on the inner wall of the sound insulation cavity, and the connecting frames are on the same side as the rubber film, and two ends of the connecting frames are integrally connected with the inner ring and the outer ring respectively.

In some embodiments, an inlay groove is formed in a surface of one side of the earmuff, which is close to the earplug, and the inlay groove and the earmuff are integrally formed and are internally provided with medical glue.

In some embodiments, the lower extreme of rubber tube is integrative to be provided with the lag, the lower extreme of lag is integrative to be provided with the sensing headgear, the inside of lag and rubber tube all is provided with the sound guide inner tube, the one end of sound guide inner tube is connected with the opening part hot melt of rubber tube, and the other end is connected with the sensing chamber head that is located the inside sensing headgear, between lag and the sound guide inner tube and all be provided with the soundproof cotton between sensing headgear and the sensing chamber head.

In some embodiments, an elastic extrusion frame is connected between the two sound transmission pipes, and two ends of the extrusion frame are clamped outside the sound transmission pipes through fixed semicircular frames.

In some embodiments, fixing bolts are arranged outside two ends of the rubber tube, bolt holes matched with the fixing bolts are formed in the outer wall of one end of the rubber tube, which is in butt joint with the rubber tube, of the rubber tube, and the rubber tube is in sealing connection with the sound tube bolts.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the earmuffs are externally connected with one end of the sound transmission tube in a threaded connection mode, the positions of the earmuffs on the sound transmission tube are conveniently adjusted, namely, the distance between the outer ring of the earmuffs and the entrance of the auditory canal is conveniently adjusted, different people can adjust the earmuffs to different positions, the adaptability is greatly enhanced, on the basis, the rubber membrane is arranged at one end of the sound insulation cavity between the inner ring and the outer ring of the earmuffs, and the inside of the sound insulation cavity is filled with the silica gel mud wrapped by the flexible membrane, so that the silica gel mud can be adaptively deformed in the entrance of the auditory canal when the rubber membrane is extruded, the ductility of the silica gel mud is high, the fitting degree between the deformed silica gel mud and the inner walls of auditory canals with different shapes is obviously improved, the plugging effect is better, the external sound is more favorably isolated, and the better noise prevention effect is realized. Simultaneously, based on the easy deformation characteristic of silica gel mud, the earmuff of this application is applicable to different crowds, is difficult for taking place extrusion discomfort or distending pain when using, has obviously improved the travelling comfort.

2. Through setting up the recess of inlaying at earmuff one side surface, set up medical glue in inlaying the inside recess, play spacing fixed effect to medical glue through inlaying the recess, medical glue is on ear department skin, is favorable to avoiding earmuff, earplug position offset, is favorable to maintaining the stability of silica gel mud position after warping.

Drawings

FIG. 1 is a front elevational view of the overall structure of the present utility model;

FIG. 2 is a left side view of an earmuff according to the utility model;

FIG. 3 is a right side view of an earmuff according to the utility model;

FIG. 4 is a schematic view of the internal structure of the protective sheath and the sensor head sheath according to the present utility model;

FIG. 5 is a schematic diagram showing the split state of a rubber tube and a sound transmission tube in the utility model;

in the figure: 1. a rubber tube; 2. a sound transmission tube; 3. an earplug; 4. a protective sleeve; 5. a sensor head cover; 6. an extrusion frame; 7. fixing the semicircular frame; 8. ear muffs; 9. a plasticine; 10. a thread; 11. a thread groove; 12. a sound insulation cavity; 13. a connecting frame; 14. a rubber film; 15. embedding grooves; 16. medical glue; 17. a sensing cavity head; 18. a sound guide inner tube; 19. soundproof cotton; 20. a fixing bolt; 21. a bolt slot.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

As shown in fig. 1-5, one embodiment provided by the present utility model:

the utility model provides an anti-noise stethoscope, includes rubber tube 1, and rubber tube 1's both ends all are provided with sound transmission pipe 2, and the one end that sound transmission pipe 2 kept away from rubber tube 1 all is provided with earplug 3. The ear muff also comprises an ear muff 8, wherein the ear muff 8 is made of medical soft silica gel commonly used in the field and comprises an inner ring 81 and an outer ring 82, and the inner ring 81 and the outer ring 82 are concentric circles. The earmuff 8 is arranged on the sound transmission tube 2 and is positioned on one side of the earplug 3, specifically, the inner wall of the inner ring 81 is provided with an inner thread 11, the outer wall of the sound transmission tube 2 is provided with an outer thread 10 matched with the inner thread 11, and the inner thread 11 and the outer thread 10 are matched with each other to connect the earmuff 8 on the sound transmission tube 2 in a threaded manner.

The annular region between the inner ring 81 of earmuff 8, outer ring 82 forms the sound insulation cavity 12, the inside packing of sound insulation cavity 12 has silica gel mud 9 and keeps away from the one end of earplug 3 and be provided with rubber membrane 14, rubber membrane 14 carries out the shutoff with sound insulation cavity 12 along axial one end, silica gel mud 9 is wrapped up by flexible film, rubber membrane 14 is connected with flexible film hot melt, the hand is towards the ear canal extrusion rubber membrane 14, silica gel mud 9 is pressed and is deformed according to the different shape of ear canal entrance, laminate more with the ear canal, better shutoff ear canal entrance, realize the noise control effect. The inner wall of the sound insulation cavity 12 is provided with a connecting frame 13, the connecting frame 13 is connected with the inner ring 81 and the outer ring 82 of the earmuff 8 at the same side of the rubber membrane 14, two connecting frames 13 are symmetrically arranged along the diameter direction of the earmuff 8. The outer ring 82 of the earmuff 8 is provided with an inlaid groove 15 on one side surface close to the earplug 3, the inlaid groove 15 and the earmuff 8 are integrated into a whole, medical glue 16 is arranged in the earmuff 8, and the earmuff 8 is in adhesive contact with the ear skin through the medical glue 16.

The lower extreme of rubber tube 1 is provided with lag 4 and rubber tube 1 and lag 4 are the integral structure, and the lower extreme of lag 4 is provided with sensing headgear 5 and lag 4 are the integral structure. The inside of lag 4 and rubber tube 1 all is provided with leads sound inner tube 18, leads sound inner tube 18's one end and the opening part hot melt connection of rubber tube 1, and the other end is provided with sensing chamber head 17, and sensing chamber head 17 is located sensing headgear 5 inside, and lag 4 plays the guard action with sensing headgear 5 to leading sound inner tube 18 and sensing chamber head 17, makes both not fragile. Soundproof cotton 19 is arranged between the protective sleeve 4 and the sound guide inner tube 18 and between the sensing head sleeve 5 and the sensing cavity head 17, so that the noise reduction effect is further improved.

An elastic extrusion frame 6 is arranged between the two sound transmission pipes 2, two ends of the extrusion frame 6 are provided with a fixed semicircular frame 7, the fixed semicircular frame 7 is clamped outside the sound transmission pipes 2, when a doctor wears the stethoscope, the two sound transmission pipes 2 are separated firstly, then the earplug 3 is inserted into an auditory canal, the extrusion frame 6 is stretched when the two sound transmission pipes 2 are separated, after the earplug 3 is placed in, the two sound transmission pipes 2 are close to each other by means of the elasticity of the extrusion frame 6, so that the stethoscope is not easy to drop when worn.

The outside of both ends of rubber tube 1 all is provided with fixing bolt 20, and the outer wall of the one end of sound transmission pipe 2 and rubber tube 1 butt joint is provided with the bolt hole 21 with fixing bolt 20 adaptation, and rubber tube 1 realizes with sound transmission pipe 2 bolt sealing connection through fixing bolt 20 and bolt hole 21, connects stably, is difficult for the atress separation.

The utility model relates to a working principle of an anti-noise stethoscope, which comprises the following steps:

during the use, insert the lower extreme of two sound transfer tubes 2 respectively inside the both ends of rubber tube 1, utilize fixing bolt 20 and bolt hole 21 cooperation to pass sound transfer tube 2 and rubber tube 1 fixed connection, put extrusion frame 6 between two sound transfer tubes 2 and outside two sound transfer tubes 2 through fixed semicircle frame 7 card, then insert the one end that sound transfer tube 2 had earplug 3 in the ear, earmuff 8 relies on thread groove 11 and screw thread 10 to rotate, make the distance between earmuff 8 and the ear skin reduce, until medical glue 16 and the contact of ear skin, then press rubber membrane 14 with the hand in the ear, the silica gel mud 9 that is wrapped up by flexible film is deformed under this extrusion effect, play good shutoff effect, isolate external sound better, realize noise control purpose. The silica gel mud has high ductility and is easy to deform, and is applicable to people with different auditory meatus sizes, meanwhile, the auditory meatus discomfort and even pain are not easy to cause, and the practicability and the comfort are obviously improved. In addition, the soundproof and noise-reducing effects of the sensing cavity head 17 and the sound guide inner tube 18 are improved by means of the soundproof cotton 19, so that accuracy of auscultation results is improved.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The anti-noise stethoscope comprises a rubber tube (1), wherein both ends of the rubber tube (1) are provided with sound transmission tubes (2), and the other ends of the sound transmission tubes (2) are provided with earplugs (3); the method is characterized in that: still include earmuff (8), earmuff (8) are including inner ring (81), the outer loop (82) that each other are concentric circles, inner ring (81) threaded connection is in on sound transmission pipe (2) just earmuff (8) are located one side of earplug (3), annular region between inner ring (81), outer loop (82) forms sound insulation cavity (12), sound insulation cavity (12) inside packing has silica gel mud (9) and keeps away from the one end of earplug (3) and be provided with rubber membrane (14), flexible film hot melt connection of rubber membrane (14) and the outside parcel of silica gel mud (9).

2. An anti-noise stethoscope according to claim 1, wherein: the inner wall of the inner ring (81) is provided with an inner thread (11), and the outer wall of the sound transmission tube (2) is provided with an outer thread (10) which is matched with the inner thread (11).

3. An anti-noise stethoscope according to claim 1, wherein: the inner wall symmetry of sound insulation cavity (12) is provided with two link (13), link (13) and rubber membrane (14) homonymy and its both ends are connected with inner ring (81), outer loop (82) an organic whole respectively.

4. An anti-noise stethoscope according to claim 1, wherein: an embedding groove (15) is formed in the surface of one side, close to the earplug (3), of the earmuff (8), and medical glue (16) is arranged inside the embedding groove (15) and the earmuff (8) in an integrated structure.

5. An anti-noise stethoscope according to claim 1, wherein: the utility model discloses a sound insulation cover, including rubber tube (1), lag (4) is provided with in an organic whole to the lower extreme of rubber tube (1), the lower extreme of lag (4) is provided with sensing headgear (5) an organic whole, the inside of lag (4) and rubber tube (1) all is provided with sound guiding inner tube (18), the one end of sound guiding inner tube (18) is connected with the opening part hot melt of rubber tube (1), and the other end is connected with sensing cavity head (17) that are located sensing headgear (5) inside, between lag (4) and sound guiding inner tube (18) and all be provided with soundproof cotton (19) between sensing headgear (5) and sensing cavity head (17).

6. An anti-noise stethoscope according to claim 1, wherein: an elastic extrusion frame (6) is connected between the two sound transmission pipes (2), and two ends of the extrusion frame (6) are clamped outside the sound transmission pipes (2) through fixed semicircular frames (7).

7. An anti-noise stethoscope according to any one of claims 1 to 6 wherein: the rubber tube is characterized in that fixing bolts (20) are arranged outside two ends of the rubber tube (1), bolt holes (21) matched with the fixing bolts (20) are formed in the outer wall of one end, in butt joint with the rubber tube (1), of the rubber tube (2), and the rubber tube (1) is in bolt sealing connection with the rubber tube (2).