JPH0422726Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a stethoscope that is used to listen to sounds such as heart sounds and breathing sounds emitted from various sound sources inside the human body from the body surface. This prevents pain and fatigue in both ear canals of examiners such as doctors and nurses when they wear a stethoscope for long periods of time during examinations, and also allows the ear pads, which have a sound insulation function, to move forward and backward. This invention relates to a stethoscope equipped with freely disposed ear pads.

[Conventional technology]

Conventionally, a stethoscope has been known as a device for listening to sounds such as heart sounds and breathing sounds emitted from various sound sources inside the human body from the body surface.

For example, a conventional stethoscope 51 as shown in FIG.
The chest piece 2 is a sound collection unit that collects sounds such as heart sounds and breathing sounds inside a patient's body on the body surface, an ear piece 3 that is attached to both ear holes of an examiner such as a doctor or nurse, and a chest piece 2. Earpiece 3 collects sounds such as heart sounds and breathing sounds inside the human body.
It consists of a Y tube 5 and an ear tube 6 that transmit information to the user.

That is, one side of the Y tube 5 is connected to the chest piece 2, and the other side is divided into two parts from the middle and connected to each ear tube 6. Further, an ear piece 3 is attached to the tip of each ear tube 6. The stethoscope has a structure in which the two parts of the Y tube 5 are urged inward using elastic force.

For this reason, the left and right ear tubes 6 are always biased inward, and when a stethoscope is attached to both ear canals of an examiner such as a doctor or nurse, the ear pieces 3 attached to the tips of the left and right ear tubes 6 is designed to press firmly inward against the examiner's ear canal.

As a result, the earpiece 3 and the ear hole are brought into close contact, and the auscultation sound from the earpiece 3 is transmitted to the ear hole without leaking to the outside, thereby preventing the auscultation sound from being lost to the outside. In this way, heart sounds and breathing sounds inside the patient's body are accurately transmitted to the examiner's ears without being significantly attenuated along the way.

[Problem that the invention attempts to solve]

However, in the case of conventional stethoscopes, when the stethoscope is worn in both ear canals of an examiner such as a doctor or nurse, the ear pieces 3 attached to the tips of the left and right ear tubes 6 are attached to the examiner's ears. Since it is structured to press strongly inward against the ear canals, it puts pressure on both ear canals of the examiner. When examiners wear stethoscopes for long periods of time, such as during health examinations, they often complain of pain and fatigue caused by pressure on both ear canals.

In this case, in order to prevent these pains and fatigue, it is possible to use a stethoscope with the earpieces 3, which are pressing on both ear canals, slightly lifted from the ear canals, but if the earpieces 3 are slightly lifted from the ear canals, There was a problem that the auscultation sound was clearly attenuated and became difficult to hear, and the earpiece 3 could not be raised slightly from the ear canal. For this reason, conventional stethoscopes have the drawback of not being able to prevent pain and fatigue caused by the feeling of pressure in both ear canals when worn for a long period of time.

This device was devised in view of the above-mentioned problems and to solve them, and its purpose is to minimize the attenuation of auscultation sounds while allowing the examiner to auscultate. Ear pads that prevent pain and fatigue that occur in both ear canals of the examiner who wears the stethoscope when the device is worn for long periods of time during examinations, and have a sound insulation function by simply turning the adjuster. To provide a stethoscope equipped with ear pads that can be easily moved forward and backward depending on the situation.

[Means for solving problems]

In order to achieve the above objectives, this invention was developed to provide a stethoscope with an ear pad that has a sound insulating function around the part of the stethoscope that is inserted into the examiner's ear canal so that it can move forward and backward. The ear pad is provided with an adjuster for moving the ear pad forward and backward, and the adjuster is screwed onto the outer periphery of the ear tube outside the ear pad.

Here, the ear canal refers to the external auditory canal.

[Effect]

This invention having the above configuration operates as follows.

In other words, since the ear pads are placed around the part of the stethoscope that is inserted into the examiner's ear canal, the inward pressure of the stethoscope, which conventionally applied entirely to the ear canal, is dispersed widely over the examiner's skull by the ear pads. It acts to reduce the feeling of pressure.

In addition, the ear pads have a sound insulation function,
It blocks external noise, minimizes the attenuation of auscultation sounds, and acts to compensate for the loss of auscultation sounds.

Furthermore, an adjuster is provided to move the ear pads forward and backward with a screw motion, and this adjuster is screwed onto the outer periphery of the ear tube on the outside of the ear pads, so that the ear pads, which have a sound insulation function, can be auscultated by simply turning the adjuster on the outside of the ear pads. It acts to easily move forward and backward with the device attached.

〔Example〕

This invention will be described in more detail below based on embodiments shown in the drawings.

-First embodiment- Here, Fig. 1 is an overall view of a stethoscope equipped with ear pads, Fig. 2 is a sectional view of the ear pads, and Fig. 4 is a sectional view of the ear pads.
The figure is a perspective view of the ear pads.

In FIG. 1, a stethoscope 1 is inserted into the chest piece 2, which serves as a sound collection part that collects sounds such as heart sounds and breathing sounds inside a patient's body on the body surface, and into both ear holes of an examiner such as a doctor or nurse. from the earpiece 3 and earpads 4 provided around the earpiece 3, and the Y tube 5 and ear tube 6 that transmit sounds such as heart sounds and breathing sounds inside the human body collected by the chest piece 2 to the earpiece 3. It is configured.

In the stethoscope 1, one side of a Y tube 5 is connected to the chest piece 2, and the other side is connected to each ear tube 6 which is divided into two parts from the middle. Further, an ear piece 3 is attached to the tip of each ear tube 6. And stethoscope 1 is Y
The tube 5 has a structure in which the two divided parts are urged inward, that is, in the direction of arrow A in the drawings, using elastic force.

In FIG. 2, the ear pad 4 provided around the rear side of the ear piece 3 includes an adjuster 7, a sound insulating adhesive film 8 adjacent to the adjuster 7,
It is comprised of a pad base 9 adjacent to the sound insulation adhesive film 8 and a sound insulation pad 10 adjacent to the pad base 9.

The regulator 7 has a thick circular shape,
Further, a sleeve 7a consisting of a partially spherical shape is integrally formed on the side surface of the adjuster 7 on the side adjacent to the sound-insulating adhesive film 8. In addition, the regulator 7 and the sleeve 7
A hole 7b is bored in the center of a, and a screw is carved into the inner peripheral surface of the hole 7b to form a female screw.
The rear side 3a of the earpiece 3 is inserted through the female threaded hole 7b. On the outer peripheral surface of the rear side 3a of the earpiece 3, a thread for engaging with the female thread is carved to form a male thread. That is, the rear side 3a of the earpiece 3 is screwed into the adjuster 7 and the hole 7b of the sleeve 7a, and by turning the adjuster 7, the earpiece 3
The adjuster 7 and the sleeve 7a move forward and backward by screwing relative to each other, that is, in the direction of arrow B and in the direction of arrow C in the drawing.
They are in a relationship of moving in the direction. The adjuster 7 functions to move the earpiece 3 forward and backward.

A slight gap is provided between the adjuster 7 and the pad base 9, and a sound insulating adhesive film 8 is tightly adhered to this gap. This gap is provided so that the adjuster 7 and the pad base 9 can be tilted. The sound-insulating sealing film 8 is provided to block noise from entering through the gap between the regulator 7 and the pad base 9. The sound-insulating sealing film 8 is made of a cushion material having a sound-insulating function and compressive elasticity, such as a polyurethane material. At least one of the surfaces of the sound insulation sealing film 8 in contact with the adjuster 7 or the pad base 9 is not bonded and is merely in contact with the adjuster 7, so that when the adjuster 7 is turned, the sound insulation adhesive film 8 Adjuster 7
It is designed so that it does not interfere with the rotation of the

At the center of the part base 9 is the sleeve 7.
An inner surface consisting of a spherical part that slides on the surface of a is formed. Therefore, the part base 9 can be tilted in any direction around this sleeve 7a,
Further, even if the sleeve 7a is rotated by turning the adjuster 7, the pad base 9 and the sound insulation pad 10 attached to the pad base 9 can be prevented from rotating.

The sound insulation pad 10 is integrally attached to the side surface of the pad base 9 opposite to the side on which the regulator 7 is attached. The sound insulation parts 10 are attached to the auricle 11 when worn.
It is made of a cushion material such as polyurethane material that has a sound insulation function and has compressive elasticity. Further, a hole for inserting the ear piece 3 is formed in the center of the sound insulating pad 10.

Next, the effects based on the configuration of the above embodiment will be explained below.

The stethoscope 1 has a structure in which the two parts of the Y-tube 5 are biased inward, that is, in the direction of arrow A in the drawing, using elastic force, so that the ear pads 4 of the stethoscope 1 are pressed into the ear. When attached to Suke 11,
The ear pads 4 are biased toward the auricle 11 side and
Closely adheres to 1. At this time, the ear pads 4 are made of a cushion material that has a sound insulating function and has compressive elasticity, so they block external noise and fit softly and closely around the auricle 11, so that they do not cause pain or fatigue. .

After the earpiece 4 is attached to the auricle 11, the adjuster 7 is turned to move the earpiece 3 forward and backward, and the earpiece 3 is inserted into the ear hole 12. For example, as shown in Figure 4,
When the adjuster 7 is turned in the direction of arrow X in the drawing, the earpiece 3 moves in the direction of arrow C in the drawing, and the earpiece 3 is inserted into the ear hole 12. At this time, although the adjuster 7 rotates, the sound insulating pad 10 does not rotate, and the user does not feel discomfort. Then, adjust the earpiece 3 until you feel no pain or fatigue.
is inserted into the ear hole 12 to complete the adjustment of the adjuster 7.

At this time, the auricle 11 does not become a perpendicular surface to the axial direction of the earpiece 3, but becomes an inclined surface, but this angle of inclination is determined by the sound-insulating contact provided in the gap between the adjuster 7 and the part base 9. Regulator 7 by compression of membrane 8
This is absorbed by the inclination of the pad base 9 and the compression of the sound insulation pad 10.

Additionally, if you feel pain or fatigue after using the stethoscope 1 for a long period of time, turn the adjuster 7 in the direction of arrow Y in the drawing, and the earpiece 3 will move in the direction of arrow B in the drawing and fit into the ear canal 12. The deeply inserted earpiece 3 can be made to float slightly from the ear canal 12.
At this time, the sound insulation adhesive film 8 and the sound insulation pad 10
Since external noise can be blocked, attenuation of auscultation sounds can be minimized.

-Second Embodiment- Here, FIG. 1 is an overall view of a stethoscope equipped with ear pads, FIG. 3 is a sectional view of the ear pads, and FIG.
The figure is a perspective view of the ear pads.

In the figures, the same components as those in the first embodiment are given the same reference numerals, and the explanation thereof will be omitted.

In FIG. 3, the ear piece 13 is screwed onto the tip of the ear tube 6, but unlike the configuration of the first embodiment, its length is short and there is a screw on the outer periphery of the rear side of the ear piece 13. is not engraved. An ear pad 14 provided around the rear side of the ear piece 13 is connected to the adjuster 1.
5. It is composed of a sound insulation adhesive film 8 adjacent to the adjuster 15, a pad base 16 adjacent to the sound insulation adhesive film 8, and a sound insulation pad 10 adjacent to the pad base 16. Of these, the sound insulation adhesive film 8 and the sound insulation pad 10 have the same structure as in the first embodiment.

The adjuster 15 has a thick circular shape, and the adjuster 15 on the side adjacent to the sound insulation adhesive film 8
A circular depression is formed on the side surface. In the center of the circular recess of the adjuster 15, a hole 7b made of a female screw similar to that of the first embodiment is formed. Furthermore, an adjustment screw cylinder 17 that is screwed into the hole 7b of the adjuster 15 is attached to the outer periphery of the ear tube 6 immediately behind the earpiece 13. A hole 7b of the adjuster 15 is provided on the outer periphery of the adjusting screw cylinder 17.
A male screw is engraved for screwing into the female screw on the inner circumference. Then, by turning the adjuster 15,
The adjustment screw cylinder 17 and the adjuster 15 move relative to each other in a screw manner, and the ear piece 13 attached to the tip of the ear tube 6 to which the adjustment screw cylinder 17 is attached moves forward and backward, that is, in the direction of arrow B and the arrow in the drawing. They are in a relationship of movement in the C direction.

A circular hole 16a having approximately the same diameter as the circular depression of the adjuster 15 is formed in the center of the pad base 16. This hole 16a is stepped on the side of the sound insulation pad 10 and has a smaller diameter. and,
A cylindrical coil spring 18 is provided in a cylindrical space formed by the hole 16a and the recess of the adjuster 15. Therefore, the adjuster 15 and the pad base 16 can be tilted in any direction by the elastic force of the coil spring 18.

The coil spring 18 is connected to the adjuster 15 and the part base 1.
6 is attached so as to prevent it from separating in the axial direction of the earpiece 13, and is rotatably attached to the adjuster 15 and the pad base 16. For example, both ends of the coil spring 18 are made to have a smaller diameter by going around the inside of the coil, and both ends with the reduced diameter are extended from the inside of the coil, and the tip side is bent in the direction of the outer diameter of the coil. This is achieved by holding it with the holding piece 19 that is attached. Therefore, rotation of the adjuster 15 cannot be prevented.

The explanation of the operation based on the configuration of the second embodiment is omitted because it is the same as that of the first embodiment.

It should be noted that this invention is not limited to the above embodiments, and it goes without saying that various modifications can be made without departing from the spirit of this invention.

For example, in the above embodiment, ear pads 4 or 1
Although the case where the sound insulating part 10 in No. 4 is slightly smaller than the auricle 11 has been described, it is not limited to this, for example, it may be large enough to completely cover the auricle 11, or a part of the skull around the auricle 11 It may be large enough to be placed in close contact with the person.

Furthermore, the left and right ear pads 4 or 14 can be connected with an inverted U-shaped arm, and when the stethoscope 1 is worn for a long period of time, it can be held on the head with this inverted U-shaped arm. .

[Effect of idea]

As is clear from the above description, according to the stethoscope equipped with the ear pads of this invention, the inward pressure of the stethoscope, which conventionally applied entirely to the ear canal, is widely dispersed to the examiner's skull by the ear pads. do,
Since the feeling of pressure can be reduced, it is possible to prevent pain and fatigue caused by wearing a stethoscope for a long time.

Moreover, the ear pads with sound insulation function can block external noise and prevent it from entering the ears, so even if the auscultation sound becomes a little low, the effect can be minimized as much as possible.
Therefore, the effect of attenuation of auscultation sound is minimized,
It can compensate for the loss of auscultation sounds.

In addition, an adjuster is provided to move the ear pads forward and backward with a screw motion, and this adjuster is screwed onto the outer periphery of the ear tube on the outside of the ear pads, so that by simply turning the adjuster on the outside of the ear pads, the ear pads with a sound insulation function can be created. You can easily move the stethoscope forward and backward while wearing the stethoscope. This allows the examiner to create the optimal situation by considering the fit and the loss of auscultation sound, thereby achieving a balance between preventing pain and fatigue caused by wearing the stethoscope for long periods and the loudness of the auscultation sound. be able to.

In addition, the stethoscope can be easily manufactured by only slightly modifying a part of the stethoscope without changing the manufacturing technology of the conventional stethoscope, which has extremely practical and beneficial effects.

[Brief explanation of the drawing]

Figures 1 to 4 show examples of a stethoscope equipped with ear pads according to this invention. Figure 1 is an overall view of the stethoscope equipped with ear pads, and Figure 2 is a first embodiment of the stethoscope. Cross-sectional view of the ear pads, 3rd
The figure is a sectional view of the ear pad according to the second embodiment, and FIG. 4 is a perspective view of the ear pad. FIG. 5 is an overall view of a conventional stethoscope. Explanation of symbols, 1... Stethoscope, 2... Chest piece, 3... Earpiece, 3a... Rear side, 4
... Ear parts, 5 ... Y tube, 6 ... Ear tube, 7 ... Adjuster, 7a ... Sleeve, 7b ... Hole, 8 ... Adhesive film for sound insulation, 9 ... Parts base, 10 ... For sound insulation Patch, 11...Auricle, 12...Ear hole, 13...Earpiece, 14
... Ear parts, 15 ... Adjuster, 16 ... Parts base, 16a ... Hole, 17 ... Adjustment screw cylinder, 18 ... Coil spring, 19 ... Holding piece, 51
...Conventional stethoscope.

Claims (1)

[Scope of utility model registration request] In a stethoscope equipped with an ear pad in which an ear pad having a sound insulation function is movably provided around the part of the stethoscope that is inserted into the examiner's ear hole,
1. A stethoscope equipped with an ear pad, characterized in that an adjuster is provided for advancing and retracting the ear pad by screw movement, and the adjuster is screwed onto the outer periphery of an ear tube outside the ear pad.