CN113143311A

CN113143311A - Multifunctional stethoscope

Info

Publication number: CN113143311A
Application number: CN202110505691.0A
Authority: CN
Inventors: 张巧丽
Original assignee: First Peoples Hospital of Changzhou
Current assignee: First Peoples Hospital of Changzhou
Priority date: 2021-05-10
Filing date: 2021-05-10
Publication date: 2021-07-23

Abstract

The invention discloses a multifunctional stethoscope, which adopts the technical scheme that: including the stethoscope body, the stethoscope body includes stethoscope head, leading note pipe, ear-hang, still includes: the auxiliary heating component is positioned on the outer ring of the auscultation head; a first cleaning structure disposed on the head for cleaning the head; the second cleaning structure is arranged outside the sound guide pipe and used for cleaning the sound guide pipe; an adjustable lighting assembly disposed on the ear hook; a pupil measuring assembly located on an end side of the auscultation head; and a receiving assembly for receiving the stethoscope body. The multifunctional stethoscope is provided with the auxiliary heating component on the stethoscope head, so that the stethoscope head has a heating function and is comfortable to use; in addition, the multifunctional stethoscope has self-cleaning capability, and the stethoscope head and the sound guide tube can be cleaned by utilizing the first cleaning structure and the second cleaning structure.

Description

Multifunctional stethoscope

Technical Field

The invention relates to the technical field of medical treatment, in particular to a multifunctional stethoscope.

Background

The stethoscope is the most commonly used diagnostic tool for internal and external gynecologists, is the mark of the physicians, and the modern medicine is the invention of the stethoscope. Since 1817, 3, 8 days of clinical application, the stethoscope has been improved in appearance and sound transmission mode, but its basic structure is not changed much, and it is mainly composed of sound pickup part (stethoscope head), conduction part (sound guide tube) and listening part (ear hook).

Chinese patent publication No. CN1177565C, which discloses a stethoscope functioning as a biological photometer, includes: a probe portion for non-invasively irradiating a diseased site with near-infrared light, the probe having a radiation optical fiber and a light-receiving optical fiber; a control device for detecting changes in cerebral circulatory blood flow based on data output from the probe section; the method is characterized in that: (a) the control device comprises a semiconductor laser light source connected to the radiation optical fiber, a light detector connected to the light receiving optical fiber, and a sound source device for converting the change of cerebral circulation blood flow into sound pulse; (b) a pair of wires and a receiver connected to the sound source device; and (c) auscultation is performed on the basis of the sound pulses from the sound source device in order to diagnose changes in brain function.

The stethoscope which functions as a biological photometer has the advantage of strong biological functionality; however, the stethoscope functioning as a biological photometer as described above still has some disadvantages, such as: firstly, the auscultation head does not have a heating function and is uncomfortable to use; secondly, the device does not have self-cleaning capability, so that nosocomial infection is increased; and thirdly, the lamp does not have the lighting function and is inconvenient to store.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a multifunctional stethoscope so as to solve the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme:

multifunctional stethoscope, including the stethoscope body, the stethoscope body includes stethoscope head, leading note pipe, ear-hang, still includes:

the auxiliary heating component is positioned on the outer ring of the auscultation head;

a first cleaning structure disposed on the head for cleaning the head;

the second cleaning structure is arranged outside the sound guide pipe and used for cleaning the sound guide pipe;

an adjustable lighting assembly disposed on the ear hook;

a pupil measuring assembly located on an end side of the auscultation head;

and a receiving assembly for receiving the stethoscope body.

By adopting the technical scheme, the multifunctional stethoscope is provided with the auxiliary heating component on the stethoscope head, so that the stethoscope head has a heating function and is comfortable to use; in addition, the multifunctional stethoscope has self-cleaning capability, and the stethoscope head and the sound guide tube can be cleaned by utilizing the first cleaning structure and the second cleaning structure; furthermore, the adjustable lighting assembly can provide lighting capacity when the stethoscope is used, the pupil measuring assembly can assist in measuring the distance between pupils, and the storage assembly can facilitate storage of the multifunctional stethoscope.

Further, the auxiliary heating subassembly includes evagination ring, inner ring groove, insulating heat transfer body, PTC heater, accuse temperature measuring instrument, temperature sensor and power, evagination ring threaded connection is in the outside of auscultation head, the inner ring groove is seted up in the evagination ring, the PTC heater with insulating heat transfer body sets up in the inner ring groove, temperature sensor installs in the temperature field that the heat transfer body formed, temperature sensor's output with accuse temperature measuring instrument's input is connected, accuse temperature measuring instrument's output with PTC heater electric connection, the power does the PTC heater accuse temperature measuring instrument and the temperature sensor power supply.

Through adopting above-mentioned technical scheme, utilize the PTC heater that the interior annular groove intussuseption of evagination ring was established to be able to be in the constant temperature state to the stethoscope head auxiliary heating, utilize accuse temperature thermoscope and temperature sensor to guarantee that the PTC heater is in, utilize insulating heat-transfer body can avoid taking place the scald, improve the travelling comfort, utilize the power to carry out the power supply heating for the PTC heater.

Further, first clean structure includes two outer posts, silica gel area, colludes the ring, prevents static cloth and cleans the cotton, two overhanging post is fixed respectively on the outer bulge loop, the both ends riveting of silica gel area is fixed the outside of outer post is stretched, collude the ring and fix on the silica gel area, prevent static cloth bonding and fixing the surface in silica gel area, it fixes to clean the cotton paste the surface of preventing static cloth.

Through adopting above-mentioned technical scheme, when needs are cleaned the auscultation head, the operator can take off from the evagination ring the silica gel area of tightening on fixed the evagination ring, later can rotate the silica gel area and utilize the cotton of wiping on the silica gel area to clean the auscultation head surface, and antistatic cloth can assist in getting rid of static.

Furthermore, a threaded connecting ring is fixed on the stethoscope head, an inserting rod is connected with the threaded connecting ring in an internal thread manner, the inserting rod is L-shaped, and one end of the inserting rod is inserted into the hooking ring.

Through adopting above-mentioned technical scheme, the inserted bar that utilizes thread to connect ring female connection can be fixed colluding the ring, fixes the silica gel area.

Further, the clean structure of second is including wiping the ring, solid fixed ring, toper recess and handle, it connects to wipe the ring to slide the leading note outside of tubes, gu fixed ring fixes the outside of wiping the ring, the toper recess is seted up in wiping the ring, the handle is fixed gu fixed ring's outside.

Through adopting above-mentioned technical scheme, when needs cleaned the leading note pipe, the operator can the pulling handle drive solid fixed ring with clean the ring and clean the slip in leading note outside pipe, frictional force is too big when the toper recess can avoid cleaning.

Further, the adjustable lighting assembly comprises a support shaft, a threaded cylinder, an end cap, a first LDE lamp, an outward extending ring and a second LED lamp, wherein the support shaft is fixed on the ear hanger, the threaded cylinder is in threaded connection with the outside of the support shaft, the end cap is in threaded connection with the outside of the threaded cylinder, the first LED lamp is embedded and fixed in the end cap, the outward extending ring is fixed on the end cap, and the second LED lamp is embedded and fixed in the outward extending ring.

Through adopting above-mentioned technical scheme, utilize the first LDE lamp on the outside threaded connection's of screw thread section of thick bamboo end cap to realize the illumination, the second LED lamp on the overhanging ring can assist the increase illuminating effect.

Further, pupil measuring component includes fixed plate, sliding tray, transparent chi and a plurality of scale mark, the fixed rod is fixed on the auscultation head, the sliding tray set up in the fixed plate, transparent chi slides and connects in the sliding tray, a plurality of the scale mark is seted up respectively on the transparent chi.

Through adopting above-mentioned technical scheme, can pull out transparent chi through the transparent chi of pulling in the fixed plate sliding tray, the pupil distance of patient can be measured to the scale mark on the transparent chi.

Further, the storage assembly comprises a main storage bag, a middle opening, an avoiding opening, an end opening, a hand strap and a first zipper, the middle opening is communicated with the end opening, the middle opening is in a long strip shape, the hand strap is fixed to the end portion of the main storage bag, and the first zipper is arranged at the middle opening.

Through adopting above-mentioned technical scheme, the bag can be used for placing leading note pipe and ear-hang in the owner, dodges the opening and can be used for dodging adjustable lighting assembly, and the end opening can make things convenient for the leading note pipe to wear out, utilizes the first zip fastener of middle opening part can conveniently the owner to accomodate opening and shutting of bag, utilizes the portable area can conveniently carry.

Furthermore, an auxiliary storage bag is sewn and fixed on the surface of the main storage bag, a top opening is formed in the top of the auxiliary storage bag, and the top opening is connected with sealing cloth through a second zipper.

Through adopting above-mentioned technical scheme, supplementary bag of accomodating can assist placing of auscultation head, can realize sealing cloth switching through utilizing open-top's second zip fastener.

Further, the main storage bag and the auxiliary storage bag are respectively provided with a layer of silica gel pad and a layer of foam pad, and the silica gel pad is located between the foam pad and the main storage bag and the auxiliary storage bag.

Through adopting above-mentioned technical scheme, utilize silica gel pad and foam pad can protect the article of main bag of accomodating to can conveniently take in the bag and supplementary bag's cleanness of accomodating.

In summary, the invention mainly has the following beneficial effects: .

The multifunctional stethoscope is provided with the auxiliary heating component on the stethoscope head, so that the stethoscope head has a heating function and is comfortable to use; in addition, the multifunctional stethoscope has self-cleaning capability, and the stethoscope head and the sound guide tube can be cleaned by utilizing the first cleaning structure and the second cleaning structure; furthermore, the adjustable lighting assembly can provide lighting capacity when the stethoscope is used, the pupil measuring assembly can assist in measuring the distance between pupils, and the storage assembly can facilitate storage of the multifunctional stethoscope.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a cross-sectional view of one embodiment of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is an enlarged view of the portion B in FIG. 2;

FIG. 5 is a second cross-sectional view of the structure of one embodiment of the present invention;

FIG. 6 is an enlarged view of the portion C of FIG. 5;

FIG. 7 is a second schematic structural diagram of an embodiment of the present invention;

fig. 8 is an enlarged schematic view of a portion D in fig. 7.

In the figure: 1. a stethoscope body; 11. an auscultation head; 12. a sound guide tube; 13. ear hanging; 2. an auxiliary heating assembly; 3. a first cleaning structure; 4. a second cleaning structure; 5. an adjustable lighting assembly; 6. a pupil measuring component; 7. a receiving assembly; 21. an outer convex ring; 22. an inner ring groove; 23. an insulating heat transfer body; 24. a PTC heater; 25. a temperature sensor; 31. extending the column outwards; 32. a silica gel band; 33. hooking a ring; 34. wiping cotton; 111. a threaded connection ring; 112. inserting a rod; 41. wiping the loops; 42. a fixing ring; 43. a tapered recess; 44. a handle; 51. a support shaft; 52. a threaded barrel; 53. an end cap; 54. a first LDE lamp; 55. an overhanging ring; 56. a second LED lamp; 61. a fixing plate; 62. a sliding groove; 63. a transparent ruler; 64. scale lines; 71. a main storage bag; 72. a middle opening; 73. avoiding the opening; 74. an end opening; 75. a hand strap; 76. a first zipper; 711. an auxiliary storage bag; 712. the top is open; 713. and (4) sealing cloth.

Detailed Description

Example (b):

the present invention is described in further detail below with reference to figures 1-8.

Example 1

As shown in fig. 1, the multifunctional stethoscope is mainly composed of the following parts: the stethoscope body 1, wherein traditional stethoscope body 1 includes auscultation head 11, leading note pipe 12, ear-hang 13, and wherein main auscultation head 11 is the pickup portion, and leading note pipe 12 is the conduction portion, and ear-hang 13 is the listening part, and these triplex has constituted the major structure of stethoscope.

As shown in fig. 1, fig. 2 and fig. 7, since some deficiencies are found in auscultation at present, the embodiment improves the deficiencies in multiple directions, so that the multifunctional stethoscope has stronger adaptability and more powerful functions, an auxiliary heating component 2 is arranged on the outer ring of the auscultation head 11, and the auxiliary heating component 2 is arranged on the auscultation head 11, so that the auscultation head 11 has a heating function and is more comfortable to use; for this purpose, a first cleaning structure 3 for cleaning the stethoscope head 11 is provided on the stethoscope head 11, a second cleaning structure 4 for cleaning the sound-conducting tube 12 is provided outside the sound-conducting tube 12, and the stethoscope head 11 and the sound-conducting tube 12 can be cleaned by using the first cleaning structure 3 and the second cleaning structure 4; in order to make the stethoscope overcome the condition of dim light when in use, the ear hook 13 is provided with an adjustable lighting component 5; in order to evaluate the mydriasis of some critically ill patients, a pupillometric component 6 is provided at the end side of the stethoscope head 11; for the convenience of storage, a storage assembly 7 for storing the stethoscope body 1 is provided.

Referring to fig. 2 and 3, the auxiliary heating unit 2 disposed at the outer periphery of the head 11 can prevent excessive cold when the head 11 is applied to the skin, and the auxiliary heating unit 2 will be described below; the auxiliary heating component 2 comprises an outer convex ring 21, an inner ring groove 22, an insulating heat transfer body 23, a PTC heater 24, a temperature control and measurement instrument, a temperature sensor 25 and a power supply, wherein the outer convex ring 21 is in threaded connection with the outer portion of the auscultation head 11, the outer convex ring 21 can be conveniently disassembled and assembled from the auscultation head 11, the inner ring groove 22 is formed in the outer convex ring 21, the PTC heater 24 and the insulating heat transfer body 23 are arranged in the inner ring groove 22, the PTC heater 24 can heat, and the insulating heat transfer body 23 can avoid burning; the temperature sensor 25 is arranged in a temperature field formed by the heat transfer body, the output end of the temperature sensor 25 is connected with the input end of the temperature control and measurement instrument, the output end of the temperature control and measurement instrument is electrically connected with the PTC heater 24, and the power supply supplies power to the PTC heater 24, the temperature control and measurement instrument and the temperature sensor 25; the PTC heater 24 embedded in the inner annular groove 22 in the outer convex ring 21 can be used for heating the stethoscope head 11 in an auxiliary manner, the temperature control thermometer and the temperature sensor 25 can be used for ensuring that the PTC heater 24 is in a constant temperature state, the insulating heat transfer body 23 can be used for avoiding scalding, the comfort is improved, and the power supply can be used for supplying power and heating for the PTC heater 24.

Referring to fig. 2, 3 and 5, since the stethoscope head 11 directly contacts with the skin of a patient, which is easily contaminated, in order to realize the self-cleaning capability, the first cleaning structure 3 is provided to include two outer extending posts 31, a silica gel strip 32, a hook ring 33, an anti-static cloth and a wiping cotton 34, wherein the two outer extending posts 31 are respectively fixed on the stethoscope head 11, two ends of the silica gel strip 32 are riveted and fixed on the outer portions of the outer posts, the hook ring 33 is fixed on the silica gel strip 32, the anti-static cloth is adhesively fixed on the surface of the silica gel strip 32, and the wiping cotton 34 is adhesively fixed on the surface of the anti-static cloth; when the stethoscope head 11 needs to be cleaned, an operator can take the silica gel belt 32 fastened on the outer convex ring 21 off the outer convex ring 21, and then the silica gel belt 32 can be rotated to clean the surface of the stethoscope head 11 by using the wiping cotton 34 on the silica gel belt 32, and the antistatic cloth can assist in removing static electricity.

Referring to fig. 2 and 3, in order to fix the silicone tape 32 and the wiping sponge 34 to the outside of the protruding ring when they are not used, a threaded ring 111 is fixed to the stethoscope head 11, an insertion rod 112 is screwed into the threaded ring 111, the insertion rod 112 is L-shaped, one end of the insertion rod 112 is inserted into the hook ring 33, and the hook ring 33 can be fixed by the insertion rod 112 screwed into the threaded ring 111 to fix the silicone tape 32.

Referring to fig. 2 and 4, since the sound guiding tube 12 is easily soiled when it is used for a long time, a second cleaning structure 4 is provided, wherein the second cleaning structure 4 includes a wiping ring 41, a fixing ring 42, a tapered groove 43 and a handle 44, wherein the wiping ring 41 is slidably connected to the outside of the sound guiding tube 12, the fixing ring 42 is fixed to the outside of the wiping ring 41, the tapered groove 43 is arranged in the wiping ring 41, and the handle 44 is fixed to the outside of the fixing ring 42, when it is required to clean the sound guiding tube 12, an operator can pull the handle 44 to drive the fixing ring 42 and the wiping ring 41 to wipe and slide on the outside of the sound guiding tube 12, and the tapered groove 43 can avoid excessive friction force during wiping.

Referring to fig. 5 and 6, in order to illuminate the ear hook 13 after being hung on the ear during auscultation, the adjustable illumination assembly 5 comprises a support shaft 51, a threaded cylinder 52, an end cap 53, a first LDE lamp 54, an outward extending ring 55 and a second LED lamp 56, wherein the support shaft 51 is fixed on the ear hook 13, the threaded cylinder 52 is screwed outside the support shaft 51, the end cap 53 is screwed outside the threaded cylinder 52, the first LED lamp is embedded and fixed in the end cap 53, the outward extending ring 55 is fixed on the end cap 53, the second LED lamp 56 is embedded and fixed in the outward extending ring 55, illumination can be realized by using the first LDE lamp 54 on the end cap 53 screwed outside the threaded cylinder 52, and the second LED lamp 56 on the outward extending ring 55 can assist in increasing the illumination effect; when the end cap 53 outside the threaded barrel 52 is screwed, the angle of the second LED lamp 56 in the outward extending ring 55 can be adjusted, and the first LED lamp is clamped in the end cap 53, and the second LDE lamp is clamped in the outward extending ring 55, so that the first LED lamp and the second LDE lamp for lighting can be conveniently replaced.

Referring to fig. 2 and 3, in order to improve the functionality of this stethoscope, the pupil measuring assembly 6 that sets up includes fixed plate 61, sliding tray 62, transparent chi 63 and a plurality of scale mark 64, the fixed rod is fixed on stethoscope head 11, sliding tray 62 is seted up in fixed plate 61, transparent chi 63 slides and connects in sliding tray 62, a plurality of scale mark 64 is seted up respectively on transparent chi 63, transparent chi 63 in sliding tray 62 can be pulled out through pulling fixed plate 61, the pupil distance of patient can be measured to scale mark 64 on the transparent chi 63.

Referring to fig. 7 and 8, in order to directly store the stethoscope after use, the storage assembly 7 includes a main storage bag 71, a middle opening 72, an avoiding opening 73, an end opening 74, a portable belt 75 and a first zipper 76, the middle opening 72, the avoiding opening 73 and the end opening 74 are communicated with each other, the middle opening 72 is in a long strip shape, the portable belt 75 is fixed at the end of the main storage bag 71, the first zipper 76 is arranged at the middle opening 72, the main storage bag 71 can be used for placing the sound guide tube 12 and the ear hanger 13, the avoiding opening 73 can be used for avoiding the adjustable lighting assembly 5, the end opening 74 can facilitate the sound guide tube 12 to penetrate out, the first zipper 76 at the middle opening 72 can facilitate the main storage bag 71 to open and close, and the portable belt 75 can be used for convenient carrying.

Referring to fig. 7 and 8, since the sound guide tube 12, the ear loop 13 and the stethoscope head 11 are stored in only one main storage bag 71, confusion is likely to occur during storage, in order to overcome this disadvantage, an auxiliary storage bag 711 is fixed to the surface of the main storage bag 71 by sewing, a top opening 712 is opened at the top of the auxiliary storage bag 711, a sealing cloth 713 is connected to the top opening 712 by a second zipper, the auxiliary storage bag 711 can assist placement of the stethoscope head 11, and opening and closing of the sealing cloth 713 can be achieved by using the second zipper of the top opening 712.

Referring to fig. 7 and 8, in order to clean the main receiving bag 71 and the auxiliary receiving bag 711 and protect the received stethoscope body 1, a layer of silicone pad and a layer of foam pad are respectively disposed inside the main receiving bag 71 and the auxiliary receiving bag 711, and the silicone pad is located between the foam pad and the main receiving bag 71 and the auxiliary receiving bag 711; the silicone pad and the foam pad can protect the articles of the main storage bag 71 and facilitate cleaning of the main storage bag 71 and the auxiliary storage bag 711.

Referring to fig. 1 and 2, a non-contact acoustic-electric transducer is provided in the interior of the stethoscope head 11, the transducer being configured to generate an electronic signal representative of acoustic vibrations. Wherein be equipped with bluetooth emission module and amplifier in auscultation head 11, wherein auscultation head 11 is titanium auscultation head 11, and titanium auscultation head 11 left side is equipped with a sound sensing device, sound sensing device passes through electric wire connection in an earphone.

Example 2

The difference from example 1 is that: the surface of the auscultation head 11 is coated with an antifouling coating, and the antifouling coating on the auscultation head 11 can enable stains on the surface of the auscultation head 11 to be removed more easily, wherein the antifouling coating is prepared by the following process:

s1, selecting 80 parts of polymer emulsion formed by polymerizing acrylic monomers and epoxy monomers, 20 parts of dibutyl tin dilaurate, 10 parts of acrylamide, 13 parts of glycidyl methacrylate, 10 parts of diethylenetriamine, 5 parts of polyethyleneimine, 8 parts of vinylamine, 12 parts of aminoethyl piperazine, 4 parts of m-phenylenediamine, 6 parts of polyetheramine and an azo diisobutyl amidine hydrochloride initiator;

s2, adding a polymer emulsion formed by polymerizing an acrylic monomer and an epoxy monomer, dibutyl tin dilaurate, acrylamide and glycidyl methacrylate into a first reactor, stirring for 30min, and introducing protective gas to expel oxygen;

s3, adding diethylenetriamine, polyethyleneimine, vinylamine, aminoethyl piperazine and m-phenylenediamine into a first reactor, heating to 68 ℃ and stirring for 20 min;

s4, mixing the first reactor with the product in the first reactor, heating the temperature to 90 ℃, adding polyether amine, uniformly mixing, cooling to normal temperature, adding an azo-diisobutyl amidine hydrochloride initiator, and uniformly mixing to obtain the antifouling coating.

Example 3

The difference from example 2 lies in the preparation of the antifouling coating, wherein the preparation process of the antifouling coating is as follows:

s1, selecting 75 parts of polymer emulsion formed by polymerizing acrylic monomers and epoxy monomers, 20 parts of dibutyl tin dilaurate, 15 parts of acrylamide, 13 parts of glycidyl methacrylate, 10 parts of diethylenetriamine, 5 parts of polyethyleneimine, 8 parts of vinylamine, 12 parts of aminoethyl piperazine, 4 parts of m-phenylenediamine, 6 parts of polyetheramine and an azo diisobutyl amidine hydrochloride initiator;

s3, adding diethylenetriamine, polyethyleneimine, vinylamine, aminoethyl piperazine and m-phenylenediamine into a first reactor, heating to 60 ℃, and stirring for 20 min;

s4, mixing the first reactor with the product in the first reactor, heating the temperature to 94 ℃, adding polyether amine, uniformly mixing, cooling to normal temperature, adding an azo-diisobutyl amidine hydrochloride initiator, and uniformly mixing to obtain the antifouling coating.

Example 4

s1, selecting 68 parts of polymer emulsion formed by polymerizing acrylic monomers and epoxy monomers, 15 parts of dibutyl tin dilaurate, 10 parts of acrylamide, 13 parts of glycidyl methacrylate, 10 parts of diethylenetriamine, 5 parts of polyethyleneimine, 10 parts of vinylamine, 14 parts of aminoethyl piperazine, 5 parts of m-phenylenediamine, 9 parts of polyetheramine and azodiisobutyl amidine hydrochloride initiator;

s3, adding diethylenetriamine, polyethyleneimine, vinylamine, aminoethyl piperazine and m-phenylenediamine into a first reactor, heating to 70 ℃, and stirring for 20 min;

s4, mixing the first reactor with the product in the first reactor, heating the temperature to 88 ℃, adding polyether amine, uniformly mixing, cooling to normal temperature, adding an azo-diisobutyl amidine hydrochloride initiator, and uniformly mixing to obtain the antifouling coating.

Example 5

s1, selecting 80 parts of polymer emulsion formed by polymerizing acrylic monomers and epoxy monomers, 20 parts of dibutyl tin dilaurate, 15 parts of acrylamide, 15 parts of glycidyl methacrylate, 15 parts of diethylenetriamine, 8 parts of polyethyleneimine, 12 parts of vinylamine, 14 parts of aminoethyl piperazine, 6 parts of m-phenylenediamine, 6 parts of polyetheramine and an azo diisobutyl amidine hydrochloride initiator;

s4, mixing the first reactor with the product in the first reactor, heating the temperature to 91 ℃, adding polyether amine, uniformly mixing, cooling to normal temperature, adding an azo-diisobutyl amidine hydrochloride initiator, and uniformly mixing to obtain the antifouling coating.

The antifouling-coated stethoscope heads 11 of examples 2 to 5 were tested for surface hardness and peel strength, and for comparison, the data of all examples were normalized based on the data of example 2.

TABLE 1

	Surface hardness	Peel strength
			Example 2	100％	100％
Example 3	118％	124％
			Example 4	106％	115％
Example 5	110％	112％

As can be seen from the above, the method for preparing the antifouling coating given in example 3 is the most preferable choice because the test results of the surface hardness and peel strength of the antifouling coating on the surface of the stethoscope head 11 in example 3 are higher than those of the other examples coated with the antifouling coating.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. Multifunctional stethoscope, including stethoscope body (1), stethoscope body (1) includes stethoscope head (11), leading note pipe (12), ear-hang (13), its characterized in that still includes:

the auxiliary heating component (2) is positioned on the outer ring of the auscultation head (11);

a first cleaning structure (3) arranged on the head (11) for cleaning the head (11);

a second cleaning structure (4) arranged outside the sound guide tube (12) for cleaning the sound guide tube (12);

an adjustable lighting assembly (5) disposed on the ear hook (13);

a pupil measuring assembly (6) located at an end side of the stethoscope head (11);

and a housing assembly (7) for housing the stethoscope body (1).

2. The multifunctional stethoscope of claim 1, wherein: the auxiliary heating component (2) comprises an outer convex ring (21), an inner ring groove (22), an insulating heat transfer body (23), a PTC heater (24), a temperature control and measurement instrument, a temperature sensor (25) and a power supply, the outer convex ring (21) is in threaded connection with the outside of the auscultation head (11), the inner ring groove (22) is arranged in the outer convex ring (21), the PTC heater (24) and the insulating heat transfer body (23) are disposed in the inner annular groove (22), the temperature sensor (25) is arranged in a temperature field formed by the heat transfer body, the output end of the temperature sensor (25) is connected with the input end of the temperature control and measurement instrument, the output end of the temperature control and measurement instrument is electrically connected with the PTC heater (24), the power supply supplies power to the PTC heater (24), the temperature control and measurement instrument and the temperature sensor (25).

3. The multifunctional stethoscope of claim 2, wherein: first clean structure (3) include two outer post (31), silica gel area (32), collude ring (33), antistatic cloth and clean cotton (34), two outer post (31) of stretching are fixed respectively on outer bulge loop (21), the both ends riveting of silica gel area (32) is fixed stretch out the outside of post (31) outward, collude ring (33) and fix on silica gel area (32), antistatic cloth bonding is fixed the surface of silica gel area (32), it fixes to clean cotton (34) paste the surface of antistatic cloth.

4. The multifunctional stethoscope of claim 3, wherein: a threaded connecting ring (111) is fixed on the stethoscope head (11), an inserting rod (112) is connected to the threaded connecting ring (111) in an internal thread mode, the inserting rod (112) is L-shaped, and one end of the inserting rod (112) is inserted into the hook ring (33).

5. The multifunctional stethoscope of claim 1, wherein: clean structure (4) including wiping ring circle (41), solid fixed ring (42), toper recess (43) and handle (44), it connects to wipe ring circle (41) slip the sound guide tube (12) outside, gu fixed ring (42) are fixed the outside of wiping ring circle (41), toper recess (43) are seted up in wiping ring circle (41), handle (44) are fixed the outside of solid fixed ring (42).

6. The multifunctional stethoscope of claim 1, wherein: the adjustable lighting assembly (5) comprises a supporting shaft (51), a threaded cylinder (52), an end cap (53), a first LDE lamp (54), an outward extending ring (55) and a second LED lamp (56), wherein the supporting shaft (51) is fixed on the ear hook (13), the threaded cylinder (52) is in threaded connection with the outside of the supporting shaft (51), the end cap (53) is in threaded connection with the outside of the threaded cylinder (52), the first LED lamp is embedded and fixed in the end cap (53), the outward extending ring (55) is fixed on the end cap (53), and the second LED lamp (56) is embedded and fixed in the outward extending ring (55).

7. The multifunctional stethoscope of claim 1, wherein: pupil measuring subassembly (6) are including fixed plate (61), sliding tray (62), transparent chi (63) and a plurality of scale mark (64), the fixed rod is fixed on auscultation head (11), sliding tray (62) are seted up in fixed plate (61), transparent chi (63) slide to be connected in sliding tray (62), a plurality of scale mark (64) are seted up respectively on transparent chi (63).

8. The multifunctional stethoscope of claim 1, wherein: accomodate subassembly (7) including main bag (71), middle opening (72), dodge opening (73), end opening (74), portable area (75) and first zip fastener (76), middle opening (72) dodge opening (73) end opening (74) communicate each other, middle opening (72) are rectangular shape, portable area (75) are fixed the tip of main bag (71) of accomodating, first zip fastener (76) set up middle opening (72) department.

9. The multi-functional stethoscope of claim 8, wherein: an auxiliary storage bag (711) is sewn and fixed on the surface of the main storage bag (71), a top opening (712) is formed in the top of the auxiliary storage bag (711), and a sealing cloth (713) is connected to the top opening (712) through a second zipper.

10. The multifunctional stethoscope of claim 9, wherein: the main storage bag (71) and the auxiliary storage bag (711) are respectively provided with a layer of silica gel pad and a layer of foam pad, and the silica gel pad is located between the foam pad and the main storage bag (71) and the auxiliary storage bag (711).