Arm cuff and sphygmomanometer

Abstract

The application relates to an arm cylinder and a sphygmomanometer, which comprises a support, an inner ring support sheet, a first air bag and a laminated air bag; the support has a mounting cavity; the inner ring support sheet is arranged in the mounting cavity; the inner ring support sheet has a first end and a second end, the second end is located on the inner side of the first end to form a containing space for limbs to pass in; the first end is connected with the support; the first air bag is arranged on the inner ring support sheet and located in the containing space; one end of the first air bag is provided with a folding part, and the folding part is arranged close to the second end; the laminated air bag is located between the support and the inner ring support sheet; the laminated air bag comprises a second air bag and a plurality of third air bags, the second air bag is connected with the support and arranged around the inner ring support sheet; the third air bags are arranged on one side of the second air bag facing the inner ring support sheet; the plurality of third air bags are arranged along the circumference of the inner ring support sheet, and each third air bag is communicated with the second air bag. Through the folding part and the laminated air bag, the contact between the air bag and the inner ring support sheet is significantly reduced, so that the friction and noise are reduced.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to an arm cuff and a blood pressure monitor. Background Technology

[0002] Currently, blood pressure measurement and limb massage both require a cuff to be applied to the limb using air pressure. Traditional manual application has limitations and a poor user experience. Manual application requires the user or healthcare worker to correctly adjust the cuff's position and tightness, which is inconvenient for users with limited mobility or vision. Measurement accuracy is affected by human factors; a cuff that is too loose or too tight will affect the accuracy of blood pressure measurement, and manual application makes it difficult to ensure consistency every time.

[0003] To address these issues, airbag structures have been gradually introduced into related fields. However, existing airbag designs typically employ a single airbag, often created by directly covering the airbag with a fabric bag to form a fabric-covered airbag that moves relative to the inner ring. However, the fabric-covered airbag is in direct contact with the inner ring, resulting in a large contact area. Furthermore, the fabric material itself has a high coefficient of friction, leading to significant friction during sliding, which affects the airbag's flexibility and response speed. Additionally, frictional noise is easily generated during relative sliding between the fabric-covered airbag and the inner ring, impacting user experience and performance. Utility Model Content

[0004] This application provides an arm cuff and a blood pressure monitor that can effectively reduce frictional resistance and noise when the air bladder slides with the inner ring, and improve the flexibility of the air bladder.

[0005] Therefore, this application provides a boom, comprising:

[0006] The bracket has a mounting cavity;

[0007] An inner ring support piece is disposed within the mounting cavity; the inner ring support piece has a first end and a second end, the second end being located inside the first end to form an accommodating space for a limb to pass through; the first end is connected to the bracket.

[0008] The first airbag is disposed on the inner ring support piece and located within the accommodating space; one end of the first airbag is provided with a folding part, which is disposed near the second end;

[0009] A stacked airbag is located between the support frame and the inner ring support plate; the stacked airbag includes a second airbag and a plurality of third airbags, the second airbag is connected to the support frame and is arranged around the inner ring support plate; the third airbag is located on the side of the second airbag facing the inner ring support plate; the plurality of third airbags are arranged circumferentially along the inner ring support plate, and each third airbag communicates with the second airbag.

[0010] As a preferred embodiment of this application, the folded portion is connected to the first airbag; the connection between the folded portion and the first airbag is provided with a folding structure so that when the first airbag is squeezed by the inner ring support piece, the folded portion bends in a direction away from the inner ring support piece.

[0011] As a preferred embodiment of this application, the second airbag is provided with a plurality of airbag parts, the plurality of airbag parts are arranged at intervals along the circumference of the inner ring support piece, and there is a ventilation part between two adjacent airbag parts; each of the third airbags corresponds to one of the airbag parts and is connected and communicates with it.

[0012] As a preferred embodiment of this application, the first airbag is provided with a first air nozzle, which passes through the inner ring support and the bracket.

[0013] As a preferred embodiment of this application, the stacked airbag is provided with a second air nozzle, which is inserted through the support.

[0014] As a preferred embodiment of this application, the first end of the inner ring support piece is provided with a first mounting groove, the bracket is provided with a second mounting groove corresponding to the first mounting groove, and the first end of the inner ring support piece is connected to the bracket by fasteners passing through the first mounting groove and the second mounting groove.

[0015] As a preferred embodiment of this application, the first assembly groove includes a first groove portion and a second groove portion, the first groove portion and the second groove portion being in communication; the fastener is inserted through the first groove portion and the second assembly groove to connect the first end of the inner ring support piece to the bracket.

[0016] As a preferred embodiment of this application, the fastener includes a first locking part, a second locking part, and a connecting part, with the two ends of the connecting part respectively connected to the first locking part and the second locking part; the connecting part is sequentially inserted into the second assembly groove and the first groove; the first locking part abuts against the first end of the inner ring support piece; and the second locking part abuts against the outer wall of the bracket.

[0017] As a preferred embodiment of this application, the bracket is further provided with an air supply device, which is connected to the first airbag and the second airbag to supply air.

[0018] A blood pressure monitor, including the aforementioned arm tube.

[0019] The beneficial effects of this application are:

[0020] The arm sleeve includes a support frame, an inner ring support plate, a first airbag, and stacked airbags. The support frame has a mounting cavity. The inner ring support plate is disposed within the mounting cavity. The inner ring support plate has a first end and a second end, with the second end located inside the first end to form an accommodating space for a limb to pass through. The first end is connected to the support frame. The first airbag is disposed on the inner ring support plate and located within the accommodating space. One end of the first airbag has a folded portion, which is located near the second end. The stacked airbags are located between the support frame and the inner ring support plate. The stacked airbags include a second airbag and a plurality of third airbags. The second airbag is connected to the support frame and is arranged around the inner ring support plate. The third airbags are disposed on the side of the second airbag facing the inner ring support plate. The plurality of third airbags are arranged circumferentially along the inner ring support plate, and each third airbag communicates with the second airbag.

[0021] The inner ring support plate has a first end connected to the bracket, and a second end located inside the first end, forming a space for the limb to pass through. This allows the arm cylinder to be securely fixed to the limb while maintaining the flexibility of the airbag system. One end of the first airbag has a folding section located near the second end of the inner ring support plate. When the first airbag inflates, the folding section bends away from the inner ring support plate, reducing the direct contact area between the first airbag and the inner ring support plate. This significantly reduces frictional resistance during sliding, improving the airbag's flexibility and response speed. Furthermore, the folding section not only reduces the contact area but also provides cushioning through its bending action, effectively reducing frictional noise generated during sliding. The stacked airbag system includes a second airbag and multiple third airbags. The third airbags are arranged circumferentially along the inner ring support plate, further reducing the contact area between the airbags and the inner ring support plate, avoiding the problem of excessive friction caused by large-area contact in traditional fabric-covered airbags. Multiple third airbags are arranged circumferentially along the inner ring support plate, forming multi-point support and avoiding concentrated friction noise caused by direct contact between a single airbag and the inner ring support plate. At the same time, the third airbags are connected to the second airbags, and the air pressure distribution is uniform, further reducing noise. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a boom cylinder according to this application;

[0024] Figure 2 for Figure 1 Exploded structure diagram;

[0025] Figure 3 for Figure 2 Structural diagram of the central fastener, the first airbag, and the stacked airbags;

[0026] Figure 4 for Figure 3 Another perspective on the structure diagram;

[0027] Figure 5 for Figure 1 Schematic diagram of the inner ring support plate;

[0028] Figure 6 for Figure 1 Diagram of the first airbag in deployment;

[0029] Figure 7 for Figure 6 Another perspective on the structure diagram;

[0030] Figure 8 for Figure 1 A schematic diagram of the structure of an arm cylinder with an outer shell.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. First airbag; 11. Folding structure; 12. Folding part; 13. Air nozzle hole; 2. Stacked airbag; 21. Second airbag; 211. Airbag part; 212. Ventilation part; 22. Third airbag; 3. Bracket; 31. Second assembly groove; 32. Limiting protrusion; 4. Inner ring support plate; 41. First end; 42. Second end; 43. First assembly groove; 431. First groove part; 432. Second groove part; 5. Fastener; 51. First locking part; 52. Second locking part; 53. Connecting part; 6. Second air nozzle; 7. First air nozzle; 8. Air supply device; 9. Outer shell. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] like Figures 1 to 7As shown, this application provides an arm sleeve, including a support 3, an inner ring support plate 4, a first airbag 1, and a stacked airbag 2; the support 3 has a mounting cavity; the inner ring support plate 4 is disposed in the mounting cavity; the inner ring support plate 4 has a first end 41 and a second end 42, the second end 42 being located inside the first end 41 to form an accommodating space for a limb to pass through; the first end 41 is connected to the support 3; the first airbag 1 is disposed on the inner ring support plate 4 and located within the accommodating space; one end of the first airbag 1 is provided with a folding portion 1. 2. The folded portion 12 is disposed near the second end 42; the stacked airbag 2 is located between the bracket 3 and the inner ring support plate 4; the stacked airbag 2 includes a second airbag 21 and a plurality of third airbags 22, the second airbag 21 is connected to the bracket 3 and is disposed around the inner ring support plate 4; the third airbag 22 is disposed on the side of the second airbag 21 facing the inner ring support plate 4; the plurality of third airbags 22 are arranged circumferentially along the inner ring support plate 4, and each third airbag 22 communicates with the second airbag 21.

[0035] Among them, such as Figures 1 to 4 As shown, the first airbag 1, inner ring support plate 4, third airbag 22, and second airbag 21 are arranged in a sequentially stacked configuration. The first airbag 1 is the airbag that directly contacts the limb and is used to apply force to the limb. The stacked airbag 2 is located on the outer layer and is used to apply force to compress the inner ring support plate 4. The first end 41 of the inner ring support plate 4 is connected to the bracket 3, and the second end 42 is located inside the first end 41, forming an accommodating space for the limb to pass through, so that the arm cylinder can be stably fixed to the limb while maintaining the flexibility of the airbag system. One end of the first airbag 1 is provided with a folding part 12, which is located near the second end 42 of the inner ring support plate 4. When the first airbag 1 is inflated, the folding part 12 bends away from the inner ring support plate 4, thereby reducing the direct contact area between the first airbag 1 and the inner ring support plate 4, thus significantly reducing the frictional resistance during the sliding process and improving the flexibility and response speed of the airbag. In addition, the folding part 12 not only reduces the contact area, but also provides a cushioning effect through its bending action, effectively reducing the frictional noise generated during the sliding process. The stacked airbag 2 includes a second airbag 21 and multiple third airbags 22. The third airbags 22 are arranged circumferentially along the inner ring support plate 4, further reducing the contact area between the airbag and the inner ring support plate 4, thus avoiding the problem of excessive friction caused by large-area contact in traditional fabric-covered airbags. The multiple third airbags 22 arranged circumferentially along the inner ring support plate 4 form multi-point support, avoiding concentrated friction noise generated when a single airbag directly contacts the inner ring support plate 4. At the same time, the third airbags 22 are connected to the second airbag 21, resulting in uniform air pressure distribution and further reducing noise.

[0036] In other embodiments, the second airbag 21 extends beyond the length of the first airbag 1. The first airbag 1 is a direct contact airbag with the limb, used to apply force to the limb. The layered airbag 2 is disposed on the outer layer to apply force to the inner ring support 4 to contract. Therefore, the second airbag 21 can distribute pressure over a wider range, providing stronger support. At the same time, the first airbag 1 does not completely cover the limb to avoid causing air tightness and discomfort to the limb during prolonged use.

[0037] In this embodiment, as Figures 6 to 7 As shown, the folding portion 12 is connected to the first airbag 1; a folding structure 11 is provided at the connection between the folding portion 12 and the first airbag 1, so that when the first airbag 1 is compressed by the inner ring support plate 4, the folding portion 12 bends in a direction away from the inner ring support plate 4. Further detailed explanation: when gas flows into the cavity of the first airbag 1, the gas gradually fills the folding portion 12. As the air pressure gradually increases, the folding structure 11 gradually forms a crease-like shape, with its folded portion protruding and facing towards the inner ring support plate 4, until it abuts against the inner wall of the inner ring support plate 4. Simultaneously, the folding portion 12 bends in a direction away from the inner ring support plate 4 as this protrusion forms. This bending action reduces the direct contact area between the first airbag 1 and the inner ring support plate 4, thereby reducing frictional resistance during sliding and avoiding the large frictional force and noise generated when the entire airbag is in direct contact with the inner ring support plate 4, as in traditional airbags. In addition, the folding portion 12 also provides a certain buffering effect, further reducing noise. When the first airbag 1 deflates, as the internal air pressure gradually decreases, the folded part 12 begins to move closer to the inner ring support plate 4. The folded part of the folded structure 11 also gradually returns to its natural state when it is not inflated, and slowly moves away from the inner ring support plate 4, eventually returning to its initial uninflated state. At this time, unlike traditional fabric-covered airbags where the entire airbag slides relative to the inner ring, the airbag in this application does not have the entire surface of the airbag sliding relative to the inner ring support plate 4. Instead, only the protruding part of the folded structure 11 has a relative sliding relationship with the inner ring support plate 4, thereby significantly reducing the direct contact area between the first airbag 1 and the inner ring support plate 4. Therefore, it can effectively reduce the frictional resistance and noise generated during the sliding process.

[0038] In this embodiment, as Figures 2 to 4As shown, the second airbag 21 has multiple airbag sections 211, which are arranged at intervals along the circumference of the inner ring support plate 4, and a ventilation section 212 is provided between adjacent airbag sections 211; each third airbag 22 corresponds to one airbag section 211 and is connected and communicates with it. Preferably, the stacked airbag 2 has three airbag sections 211, which are arranged along the inner ring support plate 4; preferably, the stacked airbag 2 is made of four layers of materials welded together using high-frequency welding. Furthermore, each airbag section 211 can work independently or collaboratively; the ventilation section 212 allows gas to flow freely between the multiple airbag sections 211, making inflation or deflation faster and more uniform, ensuring a balanced air pressure distribution. Specifically, during inflation, gas flows into the cavity and quickly fills each airbag section 211 through the ventilation section 212. As the air pressure gradually increases, the second airbag 21 expands, causing its third airbag 22 to expand. Since the stacked airbags 2 are arranged in a ring on the inner ring support plate 4, the third airbag 22 on the stacked airbags 2 compresses the inner ring support plate 4, causing the inner ring support plate 4 to contract and reducing the accommodating space within the limb, thus achieving rapid inflation. During deflation, gas is quickly discharged through the ventilation section 212 from the third airbag 22 and each airbag section 211, thereby achieving rapid deflation. In this way, the overall process of rapid inflation and deflation is achieved.

[0039] In this embodiment, as Figures 2 to 4 , Figure 7 As shown, the first airbag 1 is provided with a first air nozzle 7, which passes through the inner ring support plate 4 and the bracket 3; preferably, the first air nozzle 7 is connected to the first airbag 1 through the air nozzle hole 13, thereby ensuring the airtightness and stability of the first airbag 1 at a specific position.

[0040] In this embodiment, as Figures 2 to 4 As shown, the stacked airbag 2 is provided with a second air nozzle 6, which is inserted through the support 3. The support 3 is provided with a through hole for the second air nozzle 6 to pass through, making it more convenient to connect the second air nozzle 6 to the air supply device 8.

[0041] In this embodiment, as Figure 2 , Figure 5As shown, the first end 41 of the inner ring support plate 4 is provided with a first mounting groove 43, and the bracket 3 is provided with a second mounting groove 31 corresponding to the first mounting groove 43. The first end 41 of the inner ring support plate 4 and the bracket 3 are connected by fasteners 5 passing through the first mounting groove 43 and the second mounting groove 31. With the cooperation of the fasteners 5 and the first and second mounting grooves 43 and 31, the first end 41 of the inner ring support plate 4 can be fixedly connected to the bracket 3, so that when the first airbag 1 and the stacked airbag 2 are inflated and deflated, the first end 41 of the inner ring support plate 4 remains fixed and does not slide, but this does not affect the relative sliding between the second end 42 of the inner ring support plate 4 and the first end 41. This combination of partial fixation and relative sliding prevents the inner ring support plate 4 from shifting or loosening during the inflation or deflation of the airbag, better adapting to the dynamic changes of the airbag. At the same time, it also reduces the frictional resistance and noise generated during the inflation and deflation of the airbag, improving the working efficiency and response speed of the airbag. In addition, the first end 41 of the inner ring support plate 4 is fixed and does not slide due to the inflation and deflation of the airbag, which can ensure that the airbag is subjected to uniform force during inflation or deflation and avoid airbag deformation or functional failure caused by the sliding of the inner ring support plate 4.

[0042] In this embodiment, as Figure 2 , Figure 5 As shown, the first assembly groove 43 includes a first groove portion 431 and a second groove portion 432, with the first groove portion 431 communicating with the second groove portion 432. The fastener 5 passes through the first groove portion 431 and the second assembly groove 432 to connect the first end 41 of the inner ring support piece 4 to the bracket 3. The connection is completed simply by passing the fastener 5 through the second groove portion 432, sliding it to the first groove portion 431, and finally securing the fastener 5 with a bolt, greatly simplifying the installation process and making the entire assembly work more convenient.

[0043] In this embodiment, as Figures 1 to 4As shown, the fastener 5 includes a first locking part 51, a second locking part 52, and a connecting part 53. The two ends of the connecting part 53 are respectively connected to the first locking part 51 and the second locking part 52. The connecting part 53 passes through the second assembly groove 31 and the first groove 431 in sequence. The first locking part 51 abuts against the first end 41 of the inner ring support piece 4. The second locking part 52 abuts against the outer wall of the bracket 3. During its assembly process, the first locking part 51 is first inserted into the second groove 432. Then, driven by the connecting part 53, the first locking part 51 slides towards the first groove 431 until the first locking part 51 is completely wrapped by the first groove 431. At this time, the second locking part 52 is dragged, causing the first locking part 51 to abut against the inner wall of the first end 41 of the inner ring support piece 4. At the same time, the second locking part 52 will also abut against the outer wall of the bracket 3; and the second locking part 52 will be fixed to the bracket 3 by bolts, so that the fastener 5 can firmly connect the first end 41 of the inner ring support piece 4 to the bracket 3; that is, by the first locking part 51 abutting against the inner wall and the second locking part 52 abutting against the outer wall and being fixed by bolts, a double fixing structure is formed to ensure that the connection between the inner ring support piece 4 and the bracket 3 is more firm and reliable.

[0044] In this embodiment, as Figure 1 As shown, the support 3 is also equipped with an air supply device 8, which is connected to the first airbag 1 and the second airbag 21 to provide the necessary gas to the first airbag 1 and the second airbag 21. It should be noted that the second airbag 21 and the first airbag 1 have their own independent air channels, which can be connected to the air supply device 8 through the second air nozzle 6 and the first air nozzle 7 respectively, so as to realize the inflation and deflation of the two airbags separately, thereby realizing the control and management of the airbag inflation and deflation process.

[0045] In other embodiments, such as Figure 2 As shown, the bracket 3 is provided with a limiting protrusion 32 for engaging and positioning with the air supply device 8. The bottom surface of the air supply device 8 is provided with a groove corresponding to and fitting the limiting protrusion 32. During assembly, the limiting protrusion 32 is located at the groove. When the air supply device 8 and the bracket 3 are engaged or disassembled, the limiting protrusion 32 and the groove cooperate with each other, making the fixed connection between the air supply device 8 and the bracket 3 more stable, thereby improving the stability and reliability of the overall equipment. Preferably, it also includes a housing 9, which surrounds the bracket 3 and can provide physical protection for the boom and its internal structure (such as airbags, inner ring support plates 4, etc.) to prevent damage to the equipment from external impacts, dust, moisture or other environmental factors. The housing 9 is also provided with an installation port for placing and fixing the air supply device 8, so that the air supply device 8 and the boom are integrated into one unit, making the entire equipment structure more complete and improving the overall integrity and aesthetics of the equipment.

[0046] This application also provides a blood pressure monitor, including the aforementioned arm cuff. The specific structure of this blood pressure monitor is as described in the above embodiments. Since this blood pressure monitor employs all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here.

[0047] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0048] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Since these modifications and variations fall within the scope of the claims and their equivalents, this application also intends to include these modifications and variations.

Claims

1. A boom barrel, characterized in that, include: The bracket (3) has a mounting cavity; An inner ring support plate (4) is disposed in the mounting cavity; the inner ring support plate (4) has a first end (41) and a second end (42), the second end (42) is located inside the first end (41) to form an accommodating space for a limb to pass through; the first end (41) is connected to the bracket (3); The first airbag (1) is disposed on the inner ring support plate (4) and located within the accommodating space; one end of the first airbag (1) is provided with a folding part, which is disposed near the second end (42); A stacked airbag (2) is located between the support (3) and the inner ring support plate (4); the stacked airbag (2) includes a second airbag (21) and a plurality of third airbags (22), the second airbag (21) is connected to the support (3) and is arranged around the inner ring support plate (4); the third airbag (22) is located on the side of the second airbag (21) facing the inner ring support plate (4); the plurality of third airbags (22) are arranged circumferentially along the inner ring support plate (4), and each third airbag (22) communicates with the second airbag (21).

2. The boom barrel according to claim 1, characterized in that, The folded portion is connected to the first airbag (1); the connection between the folded portion and the first airbag (1) is provided with a folding structure so that when the first airbag (1) is squeezed by the inner ring support plate (4), the folded portion bends in a direction away from the inner ring support plate (4).

3. The boom barrel according to claim 1, characterized in that, The second airbag (21) is provided with a plurality of airbag parts (211), which are arranged at intervals along the circumference of the inner ring support plate (4), and there is a ventilation part (212) between two adjacent airbag parts (211); each third airbag (22) is connected and communicates with one airbag part (211).

4. The boom barrel according to claim 1, characterized in that, The first airbag (1) is provided with a first air nozzle (7), which passes through the inner ring support plate (4) and the bracket (3).

5. The boom barrel according to claim 1, characterized in that, The stacked airbag (2) is provided with a second air nozzle (6), which is inserted through the support (3).

6. The boom barrel according to claim 1, characterized in that, The first end (41) of the inner ring support plate (4) is provided with a first mounting groove (43), and the bracket (3) is provided with a second mounting groove (31) corresponding to the first mounting groove (43). The first end (41) of the inner ring support plate (4) and the bracket (3) are connected by fasteners (5) passing through the first mounting groove (43) and the second mounting groove (31).

7. The boom barrel according to claim 6, characterized in that, The first assembly groove (43) includes a first groove (431) and a second groove (432), the first groove (431) and the second groove (432) are connected; the fastener (5) passes through the first groove (431) and the second assembly groove (31) to connect the first end (41) of the inner ring support plate (4) to the bracket (3).

8. The boom barrel according to claim 7, characterized in that, The fastener (5) includes a first locking part (51), a second locking part (52) and a connecting part (53). The two ends of the connecting part (53) are respectively connected to the first locking part (51) and the second locking part (52). The connecting part (53) passes through the second assembly groove (31) and the first groove (431) in sequence. The first locking part (51) abuts against the first end (41) of the inner ring support piece (4). The second locking part (52) abuts against the outer wall of the bracket (3).

9. The boom barrel according to claim 1, characterized in that, The bracket (3) is also provided with an air supply device (8), which is connected to the first airbag (1) and the second airbag (21) to supply air.

10. A blood pressure monitor, characterized in that, Includes the boom cylinder as described in any one of claims 1 to 9.

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