Cuff and blood pressure measuring instrument
By incorporating a reset element and a receiving cavity within the cuff, the cuff length can be adjusted, solving the problem of fixed cuff size in traditional methods and improving the accuracy and applicability of blood pressure measurement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-03-31
AI Technical Summary
Traditional cuffs have a fixed size, which cannot accommodate different arm sizes, leading to inaccurate or uncomfortable measurements, affecting blood pressure measurement results, and have limited applicability.
Design an adjustable cuff by setting a reset element and a receiving cavity inside the cuff, and use the elasticity of the reset element to adjust the cuff length to meet the measurement needs of different arm sizes.
The cuff has been improved in terms of applicability and measurement accuracy, reduced pressure on the arm, and enhanced portability and versatility.
Smart Images
Figure CN224055988U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of medical device technology, and in particular to a cuff and blood pressure measuring device. Background Technology
[0002] A blood pressure monitor is an instrument for measuring blood pressure. Blood pressure monitors come in three types: upper arm, wrist, and finger. Upper arm and wrist blood pressure monitors typically include a cuff for securing the monitor to the user's arm.
[0003] Traditional cuffs typically offer only a few fixed sizes, making precise and flexible adjustments based on the user's arm size impossible. This leads to several issues: if the cuff is too large, it won't fit snugly against the arm, resulting in uneven pressure distribution during blood pressure measurement. This significantly affects the accuracy of the readings, potentially misleading health assessments. Conversely, if the cuff is too small, it will cause excessive pressure on the user's arm, causing discomfort and potentially affecting blood circulation over time. This also interferes with the accuracy of blood pressure measurements, failing to accurately reflect the individual's blood pressure level. Furthermore, given the significant differences in arm size among individuals, from children to obese individuals, fixed-size cuffs cannot meet the diverse needs of a wide range of users, greatly limiting the applicability of blood pressure monitors and reducing their versatility and practicality. Utility Model Content
[0004] Therefore, it is necessary to provide an adjustable cuff and blood pressure monitor to address the aforementioned technical problems.
[0005] An embodiment of the first aspect of this application provides a cuff including a first segment, a reset member, and a second segment. The first segment includes a housing and a receiving cavity formed by the housing. The housing has an opening communicating with the inside and outside of the receiving cavity. The reset member is located inside the receiving cavity and connected to the housing. The second segment extends at least partially into the receiving cavity and is connected to the reset member. The second segment is configured to, when subjected to an external force in a direction away from the reset member, pull the reset member to elongate, causing the portion of the second segment extending out of the opening to become longer. The reset member is configured to apply a reset force toward the reset member to the second segment.
[0006] In one embodiment, both the first segment and the second segment extend along a first direction, the opening is located on one side of the first segment in the first direction, and the reset member is spaced apart from the opening along the first direction.
[0007] In one embodiment, the housing includes an inner shell and an outer shell arranged along the thickness direction, with a receiving cavity formed between the inner shell and the outer shell, and the thickness direction intersecting the first direction.
[0008] In one embodiment, the outer shell includes a first base layer and a first adhesive layer located on the side of the first base layer away from the receiving cavity; the second segment includes a second base layer in the thickness direction and a second adhesive layer located on one side of the second base layer; the cuff includes a wrap-around state, in which at least a portion of the second adhesive layer is connected to the first adhesive layer, such that the second segment and the first segment together enclose an annular cavity.
[0009] In one embodiment, in the surrounding configuration, at least a portion of the second adhesive layer is located on the side of the first adhesive layer opposite to the annular cavity.
[0010] In one embodiment, both the first adhesive layer and the second adhesive layer are Velcro layers.
[0011] In one embodiment, the first segment further includes an airbag located on the side of the inner shell opposite to the receiving cavity.
[0012] In one embodiment, it also includes a trachea in communication with the airbag.
[0013] In one embodiment, the reset element is a spring retractor.
[0014] An embodiment of the second aspect of this application provides a blood pressure measuring device, including a processor and a cuff as described in any of the above embodiments, the cuff being connected to the processor.
[0015] The cuff provided in this application includes a first segment, a reset member, and a second segment. The first segment includes a housing and a receiving cavity formed by the housing. The housing has an opening communicating with the inside and outside of the receiving cavity. The reset member is located inside the receiving cavity and connected to the housing. The second segment extends at least partially into the receiving cavity and is connected to the reset member. The second segment is configured to, when subjected to an external force in a direction away from the reset member, pull the reset member to extend, thus lengthening the portion of the second segment extending out of the opening. The reset member is configured to apply a reset force to the second segment, causing it to move towards the reset member. By providing a receiving cavity within the first segment and placing the reset member within the receiving cavity, connecting the first and second segments, this application allows the reset member to extend when the second segment is pulled, lengthening the portion of the second segment extending out of the opening, thereby extending the overall length of the cuff and meeting the measurement needs of users with thicker arms. By having the reset member retract and pull the second segment into the receiving cavity when the second segment is not subjected to external force, shortening the portion of the second segment exposed outside the opening, this shortens the overall length of the cuff and meets the measurement needs of users with thinner arms, thus improving the applicability of the cuff. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments of this application or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is one of the top view structural diagrams of the cuffs in some embodiments of this application when laid flat.
[0018] Figure 2 The second example shows a structural diagram of an example sleeve when it is laid flat.
[0019] Figure 3 A cross-sectional view of an example cuff in a wrapped position is shown.
[0020] Figure 4 Showing a Figure 1 A schematic diagram of the cross-sectional structure of the cuff from the AA perspective.
[0021] Figure 5 Showing a Figure 2 A cross-sectional view of the cuff from a BB perspective.
[0022] Figure 6 The third illustration shows a structural diagram of an example sleeve when it is laid flat.
[0023] Figure label:
[0024] 10. Cuff; 11. Circular cavity;
[0025] 100. First segment; 110. Shell; 111. Inner shell; 112. Outer shell; 1121. First base layer; 1122. First adhesive layer; 120. Receiving cavity; 130. Opening; 140. Airbag;
[0026] 200, Second section; 210, Second base layer; 220, Second adhesive layer;
[0027] 300. Reset component;
[0028] 400. Trachea;
[0029] 500, pull rod; 510, pull ring;
[0030] x, first direction; z, thickness direction. Detailed Implementation
[0031] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0032] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0033] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0034] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0035] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0036] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.
[0037] The cuff provided in the embodiments of this application will now be described with reference to the accompanying drawings. In the drawings, for ease of drawing, the dimensions in the drawings are not necessarily proportional to the actual dimensions.
[0038] Please refer to Figures 1 to 3 , Figure 1 This is one of the top view structural diagrams of the cuffs in some embodiments of this application when laid flat. Figure 2 The second example shows a structural diagram of an example sleeve when it is laid flat. Figure 3 A cross-sectional view of an example cuff in a wrapped position is shown. Figure 1 The cuffs are in a contracted state. Figure 2 and Figure 3 The cuffs are in an extended state.
[0039] like Figures 1 to 3 As shown, this application provides a cuff 10, including a first segment 100, a second segment 200, and a reset member 300. The first segment 100 includes a housing 110 and a receiving cavity 120 formed by the housing 110. The housing 110 has an opening 130 communicating with the inside and outside of the receiving cavity 120. The reset member 300 is located inside the receiving cavity 120 and connected to the housing 110. The second segment 200 extends at least partially into the receiving cavity 120 and is connected to the reset member 300. The second segment 200 is configured to, when subjected to an external force in a direction away from the reset member 300, pull the reset member 300 to elongate, causing the portion of the second segment 200 extending outside the opening 130 to become longer. The reset member 300 is configured to apply a reset force toward the second segment 200.
[0040] Optionally, the reset element 300 is a spring retractor.
[0041] Optionally, the reset component 300 can also be a spring, elastic band, or other component that can be stretched and rebounded.
[0042] Optionally, both the first segment 100 and the second segment 200 are flexible, elongated structures. The first segment 100 and the second segment 200 can be connected and interlocked to form an annular cavity 11. This state is referred to as the encircling state of the cuff 10. The annular cavity 11 is used to accommodate the user's measurement area, such as the arm. The longer the portion of the second segment 200 extending beyond the opening 130, the longer the total length of the cuff 10, and consequently, the larger the diameter of the annular cavity 11, allowing the cuff 10 to accommodate a thicker user arm. Conversely, the longer the portion of the second segment 200 within the opening 130, the shorter the total length of the cuff 10, and consequently, the smaller the diameter of the annular cavity 11, allowing the cuff 10 to accommodate a thinner user arm.
[0043] The cuff 10 of this embodiment features a receiving cavity 120 within the first segment 100, and a reset member 300 disposed within the receiving cavity 120, connecting the first segment 100 and the second segment 200. When the second segment 200 is pulled, the reset member 300 extends, lengthening the portion of the second segment 200 extending from the opening 130, thus extending the overall length of the cuff 10 to meet the measurement needs of users with thicker arms. Conversely, by having the reset member 300 retract and pull the second segment 200 into the receiving cavity 120 when no external force is applied, the portion of the second segment 200 protruding from the opening 130 shortens, thereby shortening the overall length of the cuff 10 to meet the measurement needs of users with thinner arms and increasing the applicability of the cuff 10. Furthermore, when not measuring, the second segment 200 is partially housed within the receiving cavity 120, reducing the overall volume of the cuff 10 and improving its portability.
[0044] Please refer to Figures 1 to 5 , Figure 4 Showing a Figure 1 A schematic diagram of the cross-sectional structure of the cuff from the AA perspective. Figure 5 Showing a Figure 2 A cross-sectional view of the cuff from a BB perspective.
[0045] like Figures 1 to 5 As shown, in some embodiments, the first segment 100 and the second segment 200 both extend along a first direction, the opening 130 is located on one side of the first segment 100 in the first direction (x direction in the figure), and the reset member 300 is spaced apart from the opening 130 along the first direction x.
[0046] Optionally, the housing 110 includes an inner shell 111 and an outer shell 112 arranged along the thickness direction (z direction in the figure), with a receiving cavity 120 formed between the inner shell 111 and the outer shell 112, and the thickness direction z intersecting the first direction x. In the surrounding state, the inner shell 111 is located on the side of the outer shell 112 facing the annular cavity 11.
[0047] Since both the first segment 100 and the second segment 200 are flexible, elongated structures, the first direction x here refers to a reference direction after the sleeve strap 10 is laid flat, which can also be understood as the length direction of the sleeve strap 10 after it is laid flat. Similarly, the thickness direction z is also the thickness direction of the sleeve strap 10 after it is laid flat.
[0048] Optionally, both the inner shell 111 and the outer shell 112 are rectangular after being flattened. The inner shell 111 and the outer shell 112 are sealed together on two sides in the width direction, and one side of the inner shell 111 and the outer shell 112 is also sealed together in the first direction x, such that the receiving cavity 120 has only one opening 130 in the first direction x. The reset member 300 is located at any position within the receiving cavity 120, and the distance between the reset member 300 and the opening 130 is the maximum accommodating length of the receiving cavity 120 for the second segment 200. Preferably, the reset member 300 and the opening 130 are located at opposite ends of the first segment 100 in the first direction x, maximizing the accommodating length of the receiving cavity 120 for the second segment 200, further reducing the overall volume of the cuff 10 when not being measured.
[0049] In some embodiments, the outer shell 112 includes a first base layer 1121 and a first adhesive layer 1122 located on the side of the first base layer 1121 opposite to the receiving cavity 120. The second segment 200 includes a second base layer 210 in the thickness direction z and a second adhesive layer 220 located on one side of the second base layer 210. The cuff 10 includes a wraparound state, in which at least a portion of the second adhesive layer 220 is connected to the first adhesive layer 1122, such that the second segment 200 and the first segment 100 together enclose an annular cavity 11.
[0050] Optionally, both the first adhesive layer 1122 and the second adhesive layer 220 are adhesive layers.
[0051] Optionally, both the first adhesive layer 1122 and the second adhesive layer 220 are Velcro layers.
[0052] Optionally, in the surrounding state, at least a portion of the second adhesive layer 220 is located on the side of the first adhesive layer 1122 opposite to the annular cavity 11.
[0053] The cuff 10 of this embodiment, by having a first adhesive layer 1122 and a second adhesive layer 220 respectively on the first segment 100 and the second segment 200, allows the first segment 100 and the second segment 200 to be connected and fixed in a wrapping state, and wrap around the user's arm to realize the measurement function of the cuff 10. By having at least a portion of the second adhesive layer 220 located on the side of the first adhesive layer 1122 away from the annular cavity 11 in the wrapping state, it is convenient for the user to fix the second adhesive layer 220 on the second segment 200 to the first adhesive layer 1122 of the first segment 100 after pulling and wrapping the second segment 200.
[0054] In some embodiments, the first segment 100 also includes an airbag 140 located on the side of the inner shell 111 opposite to the receiving cavity 120.
[0055] Optionally, the cuff 10 also includes an air tube 400, which is connected to the airbag 140 for introducing or expelling air from the airbag 140.
[0056] The cuff 10 of this application embodiment has an airbag 140 provided on the side of the inner shell 111 away from the receiving cavity 120. When the airbag 140 is inflated, it can compress the user's arm and block the blood flow in the brachial artery. After that, the airbag 140 is slowly deflated to restore blood flow in the user's artery, thereby completing the blood pressure measurement.
[0057] Please refer to Figure 2 and Figure 6 , Figure 6 The third illustration shows a structural diagram of an example sleeve when it is laid flat.
[0058] like Figure 2 As shown, in some embodiments, the cuff 10 further includes a pull rod 500, which is connected to the second segment 200 and located on the side of the second segment 200 opposite to the reset member 300.
[0059] Optionally, the pull rod 500 is always located outside the receiving cavity 120, so that the user can apply an external force in the direction of the principle reset member 300 to the second segment 200 by pulling the pull rod 500.
[0060] In another embodiment, the pull rod 500 can also be replaced by a pull ring 510 (e.g. Figure 6 (As shown).
[0061] This application also provides a blood pressure measuring device, including a processor (not shown) and a cuff 10 as provided in any of the above embodiments. The processor includes an inflation mechanism connected to an air tube 400, and the inflation mechanism can be a manual inflation valve or an electric air pump.
[0062] Optionally, the processor also includes a detection mechanism, which can be a stethoscope and / or a pressure sensor. The stethoscope is suitable for measuring blood pressure using the Korotkoff sound method, and the pressure sensor is suitable for measuring blood pressure using the oscillometric method. The probe of the detection mechanism is located on the side of the air bladder 140 facing the annular cavity 11 and is used to receive signals.
[0063] Optionally, the processor also includes a display connected to the pressure sensor for displaying the subject's blood pressure data.
[0064] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.
[0065] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.
Claims
1. A cuff characterized in that, The sleeve comprises: a first section comprising a housing and a receiving cavity enclosed by the housing, the housing being provided with an opening communicating between the inside and outside of the receiving cavity; a reset member located in the receiving cavity and connected with the housing; a second section at least partially extending into the receiving cavity and connected with the reset member, the second section being configured to, when subjected to an external force in a direction away from the reset member, pull the reset member to elongate, thereby lengthening the part of the second section extending out of the opening, and the reset member being configured to apply a reset force to the second section to move the second section towards the reset member.
2. The cuff of claim 1, wherein, The first section and the second section both extend along a first direction, the opening is located on one side of the first section in the first direction, and the reset member is spaced apart from the opening along the first direction.
3. The cuff of claim 2, wherein, The housing comprises an inner housing and an outer housing arranged along a thickness direction, the receiving cavity being formed between the inner housing and the outer housing, and the thickness direction intersecting the first direction.
4. The cuff of claim 3, wherein, The outer housing comprises a first base layer and a first adhesive layer located on a side of the first base layer away from the receiving cavity. The second section comprises a second base layer and a second adhesive layer located on a side of the second base layer. The sleeve comprises a wrapped state, in which at least part of the second adhesive layer is connected with the first adhesive layer, so that the second section and the first section jointly enclose an annular cavity.
5. The cuff of claim 4, wherein, In the wrapped state, at least part of the second adhesive layer is located on a side of the first adhesive layer away from the annular cavity.
6. The cuff of claim 4, wherein, The first adhesive layer and the second adhesive layer are both Velcro layers.
7. The cuff of claim 3, wherein, The first section further comprises an air bag located on a side of the inner housing away from the receiving cavity.
8. The cuff of claim 7, wherein, The sleeve further comprises: an air tube in communication with the air bag.
9. The cuff of claim 1, wherein, The reset member is a spring reel.
10. A blood pressure measuring instrument, characterized by, A device comprising a processor and a sleeve according to any one of claims 1 to 9, the processor being connected with the sleeve.