Sound insulation earplug for MR examination

Abstract

The utility model belongs to the technical field of medical protection appliance equipment, and particularly relates to an MR examination sound insulation earplug which comprises an elastic head band and two sound insulation earmuffs fixedly installed at the left end and the right end of the elastic head band respectively. An installation groove is formed in the center of the inner side of each sound insulation earmuff, and an earplug assembly is fixedly installed in each installation groove. According to the device, primary sound insulation is achieved by wrapping the ears through the sound absorption ear pads, secondary sound insulation is achieved by blocking the ear holes through the sound insulation earplugs, and the good sound insulation capacity is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical protection equipment, in particular to a sound-isolating earplug for MR examination. Background Art

[0002] The MRI equipment will generate a lot of noise during operation, which will have a great impact on patients entering the MRI equipment. Therefore, patients will be provided with soundproof earmuffs before the examination to reduce the impact of noise.

[0003] When patients are examined, they need to enter the MRI device, where they are near the noise source. However, the existing MRI soundproof earmuffs have a relatively simple soundproofing measure, which only uses the earmuffs to wrap the patient's ears to achieve soundproofing. The soundproofing effect is average and it is difficult to achieve a satisfactory soundproofing effect for patients. Therefore, we propose a MR examination soundproof earplug. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a sound-isolating earplug for MR examination.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A noise-isolating earplug for MR examination, comprising:

[0007] An elastic headband and two soundproof earmuffs, wherein the two soundproof earmuffs are fixedly mounted on the left and right ends of the elastic headband respectively; a mounting groove is provided at the inner center of each of the soundproof earmuffs, and an earplug assembly is fixedly mounted in the mounting groove;

[0008] The earplug assembly includes a mounting block, a placement groove is provided at the side end of the mounting block, a cross bar is installed in the placement groove, limit blocks are fixedly installed at both ends of the cross bar, and the two limit blocks are fixedly connected to the mounting block, two elastic springs are installed at the side end of the cross bar, one end of each of the elastic springs is respectively fixedly connected to the limit blocks, and the other end of each of the elastic springs is fixedly connected to a moving block, the moving block is sleeved on the side end of the cross bar, and a connecting rod is installed at the side end of each of the moving blocks, and the ends of the two connecting rods away from the moving blocks are connected to the mounting plate, and the connecting rod is rotatably connected to the moving block and the mounting plate, and a protruding column is fixedly connected to the end of the mounting plate away from the connecting rod, and a soundproof earplug is fixedly installed on the outer side of the protruding column.

[0009] Preferably, a sliding groove is provided at the side end of the cross bar, a sliding block is fixedly connected to the inner side of the moving block, the sliding block is adapted to the sliding groove, and the moving block can move laterally at the side end of the cross bar.

[0010] Preferably, two first connecting blocks are fixedly connected to the side ends of each of the moving blocks, a first connecting column is fixedly connected between the two first connecting blocks, and one end of the connecting rod is rotatably connected to the first connecting column.

[0011] Preferably, four second connection blocks are fixedly connected to the side ends of the mounting plate, a second connection column is fixedly connected between every two second connection blocks, and one end of the connecting rod away from the first connection column is rotatably connected to the second connection column.

[0012] Preferably, the soundproofing earplug is made of flexible material, and the thickness of the soundproofing earplug is less than 2 mm.

[0013] Preferably, a sound-absorbing ear pad is installed at the inner edge of each of the soundproof earmuffs.

[0014] The nouns, conjunctions or adjectives involved in the above technical solution are explained as follows:

[0015] Fixed connection: refers to a connection in which parts or components are fixed without any relative movement. It is divided into detachable connection and non-detachable connection.

[0016] (1) Removable connection: The parts are fixed together by screws, splines, wedge pins, etc. This connection method can be disassembled for maintenance without damaging the parts. However, the specifications of the connectors used must be correct (such as the length of the bolts, keys, and wedge pins) and they must be properly tightened.

[0017] (2) Non-detachable connection: mainly refers to welding, riveting and tenoning. Since forging, sawing or oxygen cutting are required for disassembly during maintenance or replacement, spare parts generally cannot be reused. At the same time, attention should be paid to process quality, technical inspection and remedial measures (such as calibration, polishing, etc.) during connection.

[0018] The beneficial effects of the utility model are as follows: the device realizes primary sound insulation by wrapping the ear with the sound-absorbing ear pad, and realizes secondary sound insulation by blocking the ear hole with the sound-isolating ear plug, and has good sound insulation ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a schematic diagram of the structure of the overall device of the embodiment of the utility model;

[0021] Figure 2This is a schematic diagram of the structure of the soundproof earmuffs according to an embodiment of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the earplug assembly of the utility model embodiment Figure 1 ;

[0023] Figure 4 This is a schematic diagram of the structure of the mounting block of the embodiment of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the earplug assembly of the utility model embodiment Figure 2 ;

[0025] Figure 6 It is a schematic diagram of the structure of the moving block of the embodiment of the utility model;

[0026] Figure 7 It is a structural schematic diagram of a mounting plate and a raised column according to an embodiment of the utility model.

[0027] In the figure: 1. elastic headband; 2. sound-isolating earmuffs; 3. mounting slot; 4. mounting block; 5. placement slot; 6. cross bar; 7. limit block; 8. elastic spring; 9. moving block; 10. connecting rod; 11. mounting plate; 12. raised column; 13. sound-isolating earplugs; 14. slide groove; 15. slider; 16. first connecting block; 17. first connecting column; 18. second connecting block; 19. second connecting column; 20. sound-absorbing ear pads. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] A kind of MR examination soundproof earplug, such as Figure 1-Figure 7 As shown, including:

[0030] An elastic headband 1 and two soundproof earmuffs 2, wherein the two soundproof earmuffs 2 are fixedly mounted on the left and right ends of the elastic headband 1 respectively; a mounting groove 3 is provided at the inner center of each soundproof earmuff 2, and an earplug assembly is fixedly mounted in the mounting groove 3;

[0031] The earplug assembly includes a mounting block 4, a placement groove 5 is provided at the side end of the mounting block 4, a cross bar 6 is installed in the placement groove 5, limit blocks 7 are fixedly installed at both ends of the cross bar 6, and the two limit blocks 7 are fixedly connected to the mounting block 4, and two elastic springs 8 are installed at the side end of the cross bar 6, one end of each elastic spring 8 is respectively fixedly connected to the limit block 7, and the other end of each elastic spring 8 is fixedly connected to a moving block 9, which is sleeved on the side end of the cross bar 6, and a connecting rod 10 is installed at the side end of each moving block 9, and the ends of the two connecting rods 10 away from the moving block 9 are connected to the mounting plate 11, and the connecting rod 10 is rotatably connected to the moving block 9 and the mounting plate 11, and the end of the mounting plate 11 away from the connecting rod 10 is fixedly connected to a raised column 12, and a soundproof earplug 13 is fixedly installed on the outer side of the raised column 12.

[0032] The earplug assembly is provided to block the ear hole, thereby achieving a sound insulation effect.

[0033] When wearing the device, the elastic headband 1 is first put on the head, the two soundproof earmuffs 2 cover the ears, and the soundproof earplugs 13 are placed in the ear holes; when the earplug assembly is used to block the ear holes, the protruding column 12 and the soundproof earplugs 13 are placed in the ear holes; when the patient's ear holes are shallow, after the soundproof earplugs 13 are placed in the ear holes, the soundproof earmuffs 2 squeeze the ears, causing the elastic spring 8 to contract, and the contraction of the elastic spring 8 drives the moving block 9 fixedly connected to the elastic spring 8 to move to the two sides of the cross bar 6, at this time the distance between the two moving blocks 9 will increase, and at the same time The connecting rod 10 connected by the rotation of the moving block 9 will drive the mounting plate 11 to move into the placement groove 5. At this time, the protruding column 12 and the sound-isolating earplug 13 will fill the ear hole, but the protruding column 12 and the sound-isolating earplug 13 will not make the patient feel uncomfortable because of pressing against the ear hole; the purpose of setting the elastic spring 8, the moving block 9, the connecting rod 10 and the mounting plate 11 is to enable the position of the mounting plate 11 to be adjusted according to the depth of the ear hole of different patients, so that when the sound-isolating earplug 13 fills the ear hole, the patient will not feel uncomfortable because the protruding column 12 and the sound-isolating earplug 13 press against the patient's ear hole.

[0034] As a preferred embodiment of the present invention, Figure 5 , Figure 6 As shown, a slide groove 14 is provided at the side end of the cross bar 6, and a slider 15 is fixedly connected to the inner side of the moving block 9, and the slider 15 is adapted to the slide groove 14, so that the moving block 9 can move laterally at the side end of the cross bar 6. The slider 15 and the slide groove 14 are provided to enable the moving block 9 to move freely at the side end of the cross bar 6.

[0035] As a preferred embodiment of the present invention, Figure 5 , Figure 6As shown, two first connecting blocks 16 are fixedly connected to the side ends of each moving block 9, a first connecting column 17 is fixedly connected between the two first connecting blocks 16, and one end of the connecting rod 10 is rotatably connected to the first connecting column 17. The first connecting block 16 and the first connecting column 17 are provided to realize the rotational connection between the connecting rod 10 and the moving block 9.

[0036] As a preferred embodiment of the present invention, Figure 5 , Figure 7 As shown, four second connection blocks 18 are fixedly connected and installed at the side ends of the mounting plate 11, a second connection column 19 is fixedly connected between every two second connection blocks 18, and one end of the connecting rod 10 away from the first connection column 17 is rotatably connected to the second connection column 19. The second connection block 18 and the second connection column 19 are provided to realize the rotational connection between the connecting rod 10 and the mounting plate 11.

[0037] As a preferred solution of the present invention, the soundproofing earplug 13 is made of a flexible material, and the thickness of the soundproofing earplug 13 is less than 2 mm.

[0038] As a preferred embodiment of the present invention, Figure 2 As shown, a sound-absorbing ear pad 20 is installed at the inner edge of each sound-isolating earmuff 2. The sound-absorbing ear pad 20 is convenient for covering the ear through the sound-absorbing ear pad 20 when wearing the sound-isolating earmuff 2, thereby achieving the effect of primary sound insulation.

[0039] The working principle and use process of the utility model are as follows: when performing a magnetic resonance examination, an elastic headband 1 is put on the head, and two soundproofing earmuffs 2 are used to cover the ears. The sound-absorbing ear pads 20 located at the inner edges of the soundproofing earmuffs 2 are used to wrap the ears to achieve primary sound insulation. When wearing the soundproofing earmuffs 2, the soundproofing earplugs 13 need to be placed in the ear holes. Due to the presence of the elastic spring 8, the position of the protruding column 12 can be adjusted according to the depth of the ear hole by the mounting plate 11, so that the soundproofing earplugs 13 put on the outside of the protruding column 12 can fill the ear holes to achieve secondary sound insulation, thereby achieving a good sound insulation effect.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A sound-isolating earplug for MR examination, characterized in that: include: An elastic headband (1) and two soundproof earmuffs (2), wherein the two soundproof earmuffs (2) are respectively fixedly mounted on the left and right ends of the elastic headband (1); a mounting groove (3) is provided at the inner center position of each of the soundproof earmuffs (2), and an earplug assembly is fixedly mounted in the mounting groove (3); The earplug assembly comprises a mounting block (4), a placement groove (5) is provided at a side end of the mounting block (4), a cross bar (6) is installed in the placement groove (5), both ends of the cross bar (6) are fixedly installed with limit blocks (7), the two limit blocks (7) are fixedly connected to the mounting block (4), and two elastic springs (8) are installed at the side end of the cross bar (6), one end of each elastic spring (8) is fixedly connected to the limit block (7), and the other end of each elastic spring (8) is fixedly connected to a movable spring (8). The movable block (9) is sleeved on the side end of the cross bar (6), and a connecting rod (10) is installed on the side end of each movable block (9). One end of the two connecting rods (10) away from the movable block (9) is connected to a mounting plate (11), and the connecting rod (10) is rotatably connected to the movable block (9) and the mounting plate (11). One end of the mounting plate (11) away from the connecting rod (10) is fixedly connected to a protruding column (12), and a soundproof earplug (13) is fixedly installed on the outer side of the protruding column (12).

2. The MR examination soundproof earplug according to claim 1, characterized in that: A sliding groove (14) is provided at the side end of the cross bar (6), a slider (15) is fixedly connected to the inner side of the moving block (9), the slider (15) is adapted to the sliding groove (14), and the moving block (9) can move laterally at the side end of the cross bar (6).

3. The MR examination soundproof earplug according to claim 2, characterized in that: The side ends of each of the moving blocks (9) are fixedly connected to two first connecting blocks (16), a first connecting column (17) is fixedly connected between the two first connecting blocks (16), and one end of the connecting rod (10) is rotatably connected to the first connecting column (17).

4. The MR examination soundproof earplug according to claim 3, characterized in that: Four second connection blocks (18) are fixedly connected to the side ends of the mounting plate (11), a second connection column (19) is fixedly connected between every two second connection blocks (18), and one end of the connection rod (10) away from the first connection column (17) is rotatably connected to the second connection column (19).

5. The MR examination soundproof earplug according to claim 1, characterized in that: The soundproofing earplug (13) is made of a flexible material, and the thickness of the soundproofing earplug (13) is less than 2 mm.

6. The MR examination soundproof earplug according to claim 1, characterized in that: A sound-absorbing ear pad (20) is installed at the inner edge of each of the sound-isolating earmuffs (2).

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