Blood pressure monitoring device

Abstract

The invention discloses a blood pressure monitoring device which comprises a shell, the shell is provided with an expansion cavity and a telescopic opening communicated with the expansion cavity, and the expansion cavity is internally provided with a first position close to the telescopic opening and a second position away from the telescopic opening; the cuff is connected to the shell, the cuff comprises an air bag, the air bag is in a winding shape, a wearing space is defined by the air bag, and the air bag is provided with an outer movable end located on the outer side of the wearing space in the winding direction; the outer movable end is telescopically arranged in the telescopic opening, and the outer movable end is used for moving towards the second position to contract the wearing space when the air bag is inflated and expanded and moving towards the first position to expand the wearing space when the air bag is deflated and contracted. The cuff can automatically tighten the arm of the user while being inflated and expanded, and the user does not need to manually tighten the arm, so that the adjusting steps of the user are reduced. Accordingly, the cuff can automatically loosen the arm of the user while deflating and contracting, the user does not need to manually unlock the blood pressure monitoring device, and therefore the use convenience of the blood pressure monitoring device can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of blood pressure monitoring, and particularly to a blood pressure monitoring device. Background Art

[0002] With the improvement of people's living standards and the increasing attention to physical health, more and more families are equipped with various household medical devices to facilitate the simple management of family members' health. Sphygmomanometers have currently become common health monitoring devices in people's daily lives. In the related art, for people who need to monitor blood pressure multiple times, the arm-type sphygmomanometer is usually worn for a long time. To improve the comfort of the wearer, the cuff of the sphygmomanometer has a function of adjustable tightness. The user can tighten the cuff only when starting blood pressure detection. However, the process of adjusting the tightness of the cuff requires additional operations by the user, reducing the convenience of using the blood pressure monitoring device. Summary of the Invention

[0003] The main object of the present invention is to propose a blood pressure monitoring device, aiming to solve the technical problem of how to improve the convenience of using the blood pressure monitoring device.

[0004] To achieve the above object, the blood pressure monitoring device proposed by the present invention includes:

[0005] A housing, the housing is provided with an expansion cavity and a telescopic opening communicating with the expansion cavity. The expansion cavity has a first position close to the telescopic opening and a second position far from the telescopic opening;

[0006] A cuff, the cuff is connected to the housing. The cuff includes an airbag, the airbag is in a wound shape and encloses to form a wearing space. The airbag has an outer movable end located outside the wearing space in the winding direction; the outer movable end is telescopically arranged in the telescopic opening, and the outer movable end is used to move towards the second position to contract the wearing space when the airbag is inflated and expanded, and move towards the first position to expand the wearing space when the airbag deflates and contracts.

[0007] Optionally, the blood pressure monitoring device further includes a limiting member arranged in the expansion cavity. The limiting member is connected to the outer movable end, and the limiting member is used to abut against the cavity wall of the expansion cavity along the opening direction of the telescopic opening when the outer movable end is in the first position, so as to limit the outer movable end from falling out of the telescopic opening.

[0008] Optionally, the limiting member is provided with a connecting groove, at least part of the outer movable end is embedded in the connecting groove, and the width of the limiting member is greater than the width of the telescopic opening.

[0009] Optionally, the limiting member extends along the side length direction of the outer movable end, the connecting groove extends along the length direction of the limiting member, and the entire end side of the outer movable end is embedded in the connecting groove.

[0010] Optionally, a sliding rib is provided in the expansion cavity, the sliding rib extends along the opening direction of the telescopic opening, and the limiting member is slidably abutted against the sliding rib.

[0011] Optionally, the width of the expansion cavity is greater than the width of the telescopic opening.

[0012] Optionally, the housing includes a first side wall and a second side wall arranged adjacent to each other, the first side wall is connected to the cuff, and the telescopic opening is formed in the second side wall.

[0013] Optionally, the outer wall surface of the first side wall is arranged as a concave curved surface corresponding to the cuff.

[0014] Optionally, the blood pressure monitoring device further includes an inflation assembly and a nozzle. A connection hole is formed in the first side wall. One end of the nozzle is communicated with the airbag and the other end is fixedly matched with the connection hole. The inflation assembly is installed in the housing and communicated with the nozzle extending into the connection hole.

[0015] Optionally, the telescopic opening is formed in the side of the second side wall close to the first side wall.

[0016] In the technical solution of the blood pressure monitoring device of the present invention, the outer movable end of the cuff is telescopically arranged in the expansion cavity of the housing. Thus, when the airbag is inflated and expanded, the outer movable end can move away from the telescopic opening to contract the wearing space. Accordingly, the cuff can automatically tighten the user's arm while being inflated, without the need for the user to manually adjust, so as to reduce the adjustment steps of the user. Correspondingly, the cuff can also automatically loosen the user's arm while deflating and contracting, without the need for the user to manually unlock. Therefore, the use convenience of the blood pressure monitoring device can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0018] Figure 1 is a schematic structural diagram of an embodiment of the blood pressure monitoring device of the present invention;

[0019] Figure 2 is a schematic cross-sectional view of an embodiment of the blood pressure monitoring device of the present invention;

[0020] Figure 3 is Figure 2 a partial enlarged view of location A in

[0021] Figure 4 a schematic exploded sectional view of an embodiment of the blood pressure monitoring device of the present invention;

[0022] Figure 5 is Figure 4 a partial enlarged view of location B in

[0023] Explanation of the reference numerals in the drawings:

[0024] Label Name Label Name Label Name 10 Shell 11 Expansion cavity 12 Expansion port 111 First position 112 Second position 20 Airbag 21 Wearing space 30 Limiting part 31 Connection groove 13 Sliding rib 14 First side wall 15 Second side wall 40 Inflation component 50 Air nozzle 141 Connection hole 22 Outer movable end

[0025] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0028] In addition, if there are descriptions such as "first" and "second" involved in the embodiments of the present invention, the descriptions of "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution that satisfies both A and B. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0029] With the improvement of people's living standards and the increasing attention to physical health, more and more families are equipped with various household medical devices to facilitate the simple management of family members' health. Sphygmomanometers have currently become common health monitoring devices in people's daily lives. For the arm-type sphygmomanometers in related technologies, people who need to monitor their blood pressure multiple times usually wear them for a long time. To improve the comfort of the wearer, the cuff of the sphygmomanometer has a function of adjustable tightness. Users can tighten the cuff only when starting blood pressure detection. However, the process of adjusting the tightness of the cuff requires additional operations by the user, reducing the convenience of using the blood pressure monitoring device.

[0030] The present invention provides a blood pressure monitoring device, aiming to solve the technical problem of how to improve the convenience of using the blood pressure monitoring device.

[0031] In an embodiment of the present invention, as Figures 1 to 3 shown, Figure 1 is a schematic structural diagram of an embodiment of the blood pressure monitoring device of the present invention; Figure 2 is a schematic cross-sectional view of an embodiment of the blood pressure monitoring device of the present invention; Figure 3 is Figure 2 a partial enlarged view of part A in

[0032] The blood pressure monitoring device includes: a housing 10, the housing 10 is provided with an expansion chamber 11 and a telescopic opening 12 communicating with the expansion chamber 11. The expansion chamber 11 has a first position 111 close to the telescopic opening 12 and a second position 112 far from the telescopic opening 12; a cuff, the cuff is connected to the housing 10, the cuff includes an airbag 20, the airbag 20 is in a wound shape and forms a wearing space 21 by surrounding. The airbag 20 has an outer movable end 22 located outside the wearing space 21 in the winding direction; the outer movable end 22 is telescopically arranged in the telescopic opening 12, and the outer movable end 22 is used to move towards the second position 112 to contract the wearing space 21 when the airbag 20 is inflated and expanded, and move towards the first position 111 to expand the wearing space 21 when the airbag 20 deflates and contracts.

[0033] In this embodiment, the housing 10 is used to form the overall appearance structure of the blood pressure monitoring device, and an installation chamber is provided inside the housing 10 for installing functional components. The blood pressure monitoring device may further include a detection component, and the detection component includes an air pump, a pressure sensor, a gas valve, etc. Among them, the air pump, the sensor and the gas valve are installed inside the housing 10, the cuff is located outside the housing 10 and is connected to the housing 10; the air pump, the pressure sensor, the gas valve and the cuff are connected through an air path (such as an air pipe).

[0034] The cuff is for the user to wear on the arm. After the user wears the cuff, the airbag 20 winds around the user's arm. The air pump is used to inflate the airbag 20, the pressure sensor is used to detect the air pressure change in the airbag 20, and the air valve is used to control the deflation of the airbag 20. The principle of detecting blood pressure through the pressure sensor and the airbag 20 can refer to the oscillometric method or the oscillatory method. The principle is to automatically adjust the inflation amount of the airbag 20 wrapped around the upper arm, change the pressure, and there is a certain oscillatory wave when blood flows through the blood vessel, which is received by the pressure sensor. Then gradually deflate, and according to the change of the oscillatory wave, the pressure and fluctuation detected by the pressure sensor also change. Select the moment with the largest fluctuation as the reference point. Based on this point, find a fluctuation point with a certain value forward as the systolic blood pressure, and find a fluctuation point with a certain value backward as the diastolic blood pressure.

[0035] The expansion cavity 11 can be adjacent to the installation cavity, and the first position 111 and the second position 112 are arranged along the depth direction of the expansion cavity 11. One end of the airbag 20 in the winding direction is located inside the wearing space 21, and the other end is located outside the wearing space 21. The other end is the outer movable end 22. One end of the airbag 20 inside the wearing space 21 is fixed. Therefore, when the outer movable end 22 continues to extend in the winding direction, the wearing space 21 will be contracted. If the arm of the detection object has passed through the wearing space 21 at this time, the airbag 20 will tighten the arm of the detection object. When the outer movable end 22 retracts in the winding direction, the wearing space 21 will be enlarged. At this time, the airbag 20 will loosen the arm of the detection object, so that the arm of the detection object can be withdrawn from the wearing space 21.

[0036] When the airbag 20 inflates and expands, the outer movable end 22 also gradually expands. However, the width of the expansion cavity 11 cannot provide enough expansion space for the outer movable end 22. Therefore, the outer movable end 22 will move towards the second movement under the drive of the gas. The movement of the outer movable end 22 towards the second position 112 is equivalent to stretching along the winding direction of the airbag 20. Therefore, it will drive the overall winding of the airbag 20, so that the airbag 20 contracts the wearing space 21.

[0037] When the airbag 20 deflates and contracts, the outer movable end 22 also gradually contracts. At this time, the acting force of the gas is removed, the airbag 20 automatically returns to its deformed state, and the outer movable end 22 also returns to the first position 111 under the pulling force of the main body of the airbag 20. The movement of the outer movable end 22 towards the first position 111 is equivalent to retracting along the winding direction of the airbag 20. Therefore, it will drive the overall loosening of the airbag 20, so that the airbag 20 enlarges the wearing space 21.

[0038] When the user uses the blood pressure monitoring device, they only need to pass their arm through the wearing space 21, and there is no need to adjust the tightness of the cuff anymore. When the blood pressure monitoring device starts to work and inflates the airbag 20, as described above, the airbag 20 will automatically tighten the user's arm along the winding direction, thereby improving the pressure effect on the arm. After the blood pressure detection device finishes use, during the deflation process of the airbag 20, it will also automatically loosen the user's arm along the winding direction without the user having to manually loosen it, thus reducing the user's operation steps and improving the convenience of using the blood pressure detection device.

[0039] Specifically, as Figure 3 shown, the blood pressure monitoring device further includes a limiting member 30 disposed in the expansion cavity 11. The limiting member 30 is connected to the outer movable end 22. When the outer movable end 22 is in the first position 111, the limiting member 30 is used to abut against the cavity wall of the expansion cavity 11 along the opening direction of the telescopic opening 12 to prevent the outer movable end 22 from falling out of the telescopic opening 12. The limiting member 30 can ensure that the outer movable end 22 is always in the expansion cavity 11, thereby improving the cooperation stability between the outer movable end 22 and the housing 10.

[0040] The limiting member 30 can be connected to only one side of the outer movable end 22 or both sides of the outer movable end 22. Exemplarily, as Figure 4 and Figure 5 shown, Figure 4 is a schematic exploded cross-sectional view of an embodiment of the blood pressure monitoring device of the present invention; Figure 5 is Figure 4 a partial enlarged view of B in

[0041] The limiting member 30 is provided with a connecting groove 31. At least a part of the outer movable end 22 is embedded in the connecting groove 31. The width of the limiting member 30 is greater than the width of the telescopic opening 12. The opening of the connecting groove 31 faces the telescopic opening 12. Embedding the outer movable end 22 in the connecting groove 31 can increase the connection area between the limiting member 30 and the connecting groove 31, thereby improving the connection stability between the limiting member 30 and the outer movable end 22. The width of the limiting member 30 is greater than the width of the telescopic opening 12, so that the limiting member 30 cannot fall out of the telescopic opening 12, thereby effectively preventing the outer movable end 22 connected to the limiting member 30 from falling out of the telescopic opening 12.

[0042] It can be understood that the airbag 20 has a certain width in the direction perpendicular to the winding direction. Therefore, the end side of the outer movable end 22 has a certain length. The end of the outer movable end 22 can be partially embedded in the connecting groove 31 or completely embedded in the connecting groove 31, which is not limited herein.

[0043] Specifically, as Figure 3As shown, the limiting member 30 extends along the side length direction of the outer movable end 22, the connecting groove 31 extends along the length direction of the limiting member 30, and the end side of the outer movable end 22 is entirely embedded in the connecting groove 31. In this way, not only can the volume of the limiting member 30 be increased to enhance the limiting and abutting effect between the limiting member 30 and the housing 10, but also the connecting area between the outer movable end 22 and the limiting member 30 can be increased to improve the connection stability between the outer movable end 22 and the limiting member 30, thereby further enhancing the limiting stability of the outer movable end 22.

[0044] Since the limiting member 30 is connected to the outer movable end 22, when the outer movable end 22 moves, the limiting member 30 will move synchronously.

[0045] Exemplarily, as Figure 3 shown, a sliding rib 13 is provided in the expansion cavity 11, the sliding rib 13 extends along the opening direction of the telescopic opening 12, and the limiting member 30 and the sliding rib 13 can be slidably abutted. When the outer movable end 22 moves, the limiting member 30 can slide along the sliding rib 13. In this way, the frictional resistance received by the limiting member 30 during movement can be reduced, thereby reducing the influence of the frictional resistance on the movement process of the outer movable end 22 to ensure the tightening or loosening effect of the airbag 20 on the arm of the detection object.

[0046] The number of the sliding ribs 13 can be multiple, and the multiple sliding ribs 13 are arranged at intervals along the length direction of the limiting member 30 to increase the sliding abutting positions with the limiting rib. In this way, it can be avoided that a certain part of the limiting member 30 is overstressed and stuck during movement, so as to improve the movement stability of the outer movable end 22.

[0047] The width of the expansion cavity 11 can be equal to the width of the telescopic opening 12 or greater than the width of the telescopic opening 12. It can be understood that the width here refers to the dimension of the expansion cavity 11 and the telescopic opening 12 along the thickness direction of the outer movable end 22.

[0048] Exemplarily, as Figure 3 shown, the width of the expansion cavity 11 is greater than the width of the telescopic opening 12. In this way, the outer movable end 22 can have sufficient expansion space in the expansion cavity 11, and the contact area between the outer movable end 22 and the cavity wall of the expansion cavity 11 can be reduced to lower the frictional resistance caused by the cavity wall of the expansion cavity 11 to the movement process of the outer movable end 22, thereby further improving the movement stability of the outer movable end 22.

[0049] The position of the telescopic opening 12 on the housing 10 can be a position opposite to the cuff or a position adjacent to the cuff, which is not limited here.

[0050] Exemplarily, as Figure 4As shown, the housing 10 includes a first side wall 14 and a second side wall 15 which are adjacently arranged. The first side wall 14 is connected to the cuff, and the telescopic opening 12 is formed in the second side wall 15. By forming the telescopic opening 12 at a position on the housing 10 adjacent to the cuff, the distance between the telescopic opening 12 and the cuff can be shortened, thereby reducing the ineffective extension dimension before the outer movable end 22 enters the telescopic opening 12, improving the effective utilization rate of the cuff, and making the appearance structure of the blood pressure monitoring device simpler and more compact.

[0051] The telescopic opening 12 can be formed on one side of the second side wall 15 close to the first side wall 14, or on one side of the second side wall 15 away from the first side wall 14, and there is no limitation here.

[0052] Specifically, as Figure 4 shown, the telescopic opening 12 is formed on one side of the second side wall 15 close to the first side wall 14, so as to further shorten the distance between the telescopic opening 12 and the cuff, further reducing the ineffective extension dimension before the outer movable end 22 enters the telescopic opening 12, improving the effective utilization rate of the cuff, and making the appearance structure of the blood pressure monitoring device simpler and more compact.

[0053] The outer wall surface of the first side wall 14 can be a plane or a concave surface.

[0054] In practical applications, as Figure 4 shown, the outer wall surface of the first side wall 14 is arranged as a concave curved surface corresponding to the cuff. The cuff is in a wound shape, so its outer peripheral surface is a convex curved surface, and the outer wall surface of the first side wall 14 abuts against the outer peripheral surface of the cuff. By arranging the outer wall surface of the first side wall 14 as a concave curved surface corresponding to the cuff, the outer wall surface of the first side wall 14 can be made to fit and abut against the outer peripheral surface of the cuff, thereby improving the appearance integrity of the blood pressure monitoring device.

[0055] Exemplarily, as Figure 4 shown, the blood pressure monitoring device further includes an inflation assembly 40 and a nozzle 50. A connection hole 141 is formed in the first side wall 14. One end of the nozzle 50 is communicated with the airbag 20, and the other end is fixedly fitted with the connection hole 141. The inflation assembly 40 is installed in the housing 10 and is communicated with the nozzle 50 extending into the connection hole 141. The nozzle 50 can not only realize the air path communication between the inflation assembly 40 and the airbag 20, but also realize the fixed connection between the airbag 20 and the housing 10, so that the airbag 20 can be fixed on the housing 10, improving the effective utilization rate of the nozzle 50 and simplifying the connection mode between the airbag 20 and the housing 10.

[0056] In the technical solution of the blood pressure monitoring device of the present invention, the outer movable end 22 of the cuff is telescopically arranged in the expansion cavity 11 of the housing 10. Thus, when the airbag 20 is inflated and expanded, the outer movable end 22 can move away from the telescopic opening 12 to contract the wearing space 21. Accordingly, the cuff can automatically tighten the user's arm while being inflated and expanded, without the need for the user to manually tighten it, so as to reduce the adjustment steps of the user. Correspondingly, the cuff can also automatically loosen the user's arm while deflating and contracting, without the need for the user to manually unlock it. Therefore, the usability of the blood pressure monitoring device can be improved.

[0057] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the inventive concept of the present invention, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A blood pressure monitoring device, characterized in that, Comprising: A housing, the housing is provided with an expansion cavity and a telescopic opening communicating with the expansion cavity, the expansion cavity has a first position close to the telescopic opening and a second position far from the telescopic opening; A cuff, the cuff is connected to the housing, the cuff includes an airbag, the airbag is wound and forms a wearing space, the airbag has an outer movable end located outside the wearing space in the winding direction; the outer movable end is telescopically arranged in the telescopic opening, and the outer movable end is used to move towards the second position to contract the wearing space when the airbag is inflated and expanded, and move towards the first position to expand the wearing space when the airbag is deflated and contracted.

2. The blood pressure monitoring device according to claim 1, wherein, The blood pressure monitoring device further includes a limiting member arranged in the expansion cavity, the limiting member is connected to the outer movable end, and the limiting member is used to abut against the cavity wall of the expansion cavity along the opening direction of the telescopic opening when the outer movable end is in the first position, so as to limit the outer movable end from falling out of the telescopic opening.

3. The blood pressure monitoring device according to claim 2, wherein The limiting member is provided with a connection groove, at least part of the outer movable end is embedded in the connection groove, and the width of the limiting member is greater than the width of the telescopic opening.

4. The blood pressure monitoring device according to claim 3, characterized in that, The limiting member extends along the side length direction of the outer movable end, the connection groove extends along the length direction of the limiting member, and all the end side edges of the outer movable end are embedded in the connection groove.

5. The blood pressure monitoring device according to claim 4, characterized in that, A sliding rib is arranged in the expansion cavity, the sliding rib extends along the opening direction of the telescopic opening, and the limiting member is slidably abutted against the sliding rib.

6. The blood pressure monitoring device according to claim 1, wherein, The width of the expansion cavity is greater than the width of the telescopic opening.

7. The blood pressure monitoring device according to claim 1, wherein, The housing includes a first side wall and a second side wall arranged adjacent to each other, the first side wall is connected to the cuff, and the telescopic opening is opened on the second side wall.

8. The blood pressure monitoring device according to claim 7, characterized in that, The outer wall surface of the first side wall is arranged as a concave curved surface corresponding to the cuff.

9. The blood pressure monitoring device according to claim 7, wherein, The blood pressure monitoring device further includes an inflation assembly and a nozzle, the first side wall is provided with a connection hole, one end of the nozzle is communicated with the airbag and the other end is fixedly matched with the connection hole, and the inflation assembly is installed in the housing and communicated with the nozzle extending into the connection hole.

10. The blood pressure monitoring device according to claim 7, characterized in that, The telescopic opening is opened on one side of the second side wall close to the first side wall.

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