Cuff air bag, cuff and blood pressure measuring device

Abstract

The utility model particularly relates to a cuff air bag used for a blood pressure measuring device, and the cuff air bag comprises an air bag which is internally provided with an air cavity; the at least two piezoelectric sensors are distributed on the inner wall of the air bag at intervals, and the at least two piezoelectric sensors are electrically connected; the air pipe connector is arranged on the outer wall of the air bag, and the air pipe connector comprises a first air channel communicated with the air cavity and an electric connecting piece electrically connected with the at least two piezoelectric sensors. According to the cuff air bag, the at least two piezoelectric sensors are distributed on the inner wall of the air bag at intervals, so that the cuff air bag can detect the blood pressure of a user through the air pressure and the piezoelectric signals at the same time, the detection reliability of the cuff air bag is improved, in addition, the cuff air bag can provide a stable pressure measuring environment for the piezoelectric sensors, and the detection accuracy is improved. Therefore, the phenomenon of detection distortion of the piezoelectric sensor is reduced.

Description

Technical Field

[0001] This application relates to the field of medical device technology, specifically to a cuff airbag, cuff, and blood pressure measuring device. Background Technology

[0002] This section provides only background information relevant to this disclosure and is not necessarily prior art.

[0003] Blood pressure can provide a basis for the diagnosis of some diseases (such as kidney disease, endocrine disorders, or heart disease). Existing blood pressure measuring devices based on the Korotkoff sound method place the sensor inside the cuff, specifically on the outside of the air bladder. This structure simplifies the process, facilitates manufacturing, and improves the production efficiency of blood pressure measuring devices by placing the sensor on the outside of the integrally molded air bladder. However, with this structural design, the sensor often collects a lot of external noise, leading to a large deviation in blood pressure measurement results. In particular, this external noise greatly interferes with the recognition of Korotkoff sounds, resulting in unstable measurement data and easy detection distortion of measurement results, which seriously affects the blood pressure measurement results. Utility Model Content

[0004] The purpose of this application is to at least solve the technical problem of low detection reliability of existing cuff airbags, and this purpose is achieved through the following technical solution:

[0005] The first aspect of this application provides a cuff airbag for a blood pressure measuring device. The cuff airbag includes: an airbag having an air cavity formed inside; at least two piezoelectric sensors spaced apart on the inner wall of the airbag and electrically connected; and an air tube connector disposed on the outer wall of the airbag, the air tube connector including a first airway communicating with the air cavity and an electrical connector electrically connected to the at least two piezoelectric sensors.

[0006] Those skilled in the art will understand that the cuff airbag proposed in this application improves the detection reliability of the cuff airbag by distributing at least two piezoelectric sensors at intervals on the inner wall of the airbag, thereby enabling the cuff airbag to detect the user's blood pressure simultaneously through air pressure and piezoelectric signals.

[0007] Furthermore, the cuff airbag provides a more stable pressure measurement environment for the piezoelectric sensor, thereby reducing detection distortion. Placing the piezoelectric sensor on the inner wall of the airbag effectively avoids noise generated outside the airbag during measurement. Moreover, the cuff airbag proposed in this application also simplifies the structure of the piezoelectric sensor and protects it.

[0008] In some embodiments, at least two piezoelectric sensors are spaced apart along the length of the airbag.

[0009] In some embodiments, the cuff airbag further includes a ribbon cable connecting at least two piezoelectric sensors, and an electrical connector electrically connected to the ribbon cable.

[0010] In some embodiments, the cable is elastic along the length of the airbag.

[0011] In some embodiments, the airbag includes a first and a second airbag that are fitted together, with an air cavity formed between the first and second airbags, and at least two piezoelectric sensors disposed on the inner wall of the first airbag.

[0012] In some embodiments, the second capsule is provided with an air port that connects the air chamber to the tracheal connector, and a tracheal base disposed on the inner wall of the second capsule. The tracheal base is provided with an adapter port at a position corresponding to the air port, and the tracheal connector is connected to the tracheal base.

[0013] In some embodiments, the air inlet is positioned at the center of at least two orthogonal projection positions of the second capsule onto the first capsule after the first and second capsules are attached.

[0014] In some embodiments, the periphery of the first bladder and the periphery of the second bladder are both provided with a heat-melt welded portion, and the first bladder and the second bladder are bonded together by the heat-melt welded portion to form a peripheral sealing structure of the cuff airbag.

[0015] In some embodiments, the tracheal connector is connected to a tracheal tube, the tracheal tube is provided with a second airway, and the electrical connector passes through the first airway and the second airway to be electrically connected to the pneumatic plug.

[0016] The second aspect of this application provides a cuff, including a cuff airbag and a cuff sleeve, wherein the cuff airbag is disposed within the cuff sleeve and the cuff airbag is configured as the cuff airbag of the first aspect of this application.

[0017] The third aspect of this application provides a blood pressure measuring device, which includes a main unit, an electric plug, and a cuff bladder. The cuff bladder is connected to the main unit through the electric plug, and the main unit inflates the cuff bladder through the electric plug. The cuff bladder is configured as the cuff bladder of the first aspect of this application. Attached Figure Description

[0018] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0019] Figure 1 This is an isometric view of the cuff airbag according to one embodiment of this application;

[0020] Figure 2 for Figure 1 Perspective view of the cuff airbag;

[0021] Figure 3 This is a schematic diagram of the disassembled structure of the cuff airbag according to an embodiment of this application;

[0022] Figure 4 This is a cross-sectional view of the cuff airbag according to an embodiment of this application;

[0023] Figure 5 for Figure 4 A partial structural cross-sectional view of the cuff airbag shown;

[0024] Figure 6 This is a schematic diagram of the cuff structure according to one embodiment of this application.

[0025] The accompanying figure is labeled as follows:

[0026] 100. Cuff airbag; 101. Hot melt welded part; 102. Positioning structure; 103. Air chamber;

[0027] 10. Airbag; 11. First airbag flap; 12. Second airbag flap; 120. Air inlet; 121. Tracheal tube base; 1211. Fitting port;

[0028] 20. Piezoelectric sensor; 21. Ribbon cable;

[0029] 30. Airway connector; 301. First airway; 31. Electrical connector; 311. Wiring harness; 312. Connecting wire; 32. Airway; 321. Second airway; 33. Pneumatic plug;

[0030] 1000, Cuff; 100, Cuff airbag; 200, Cuff cover. Detailed Implementation

[0031] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that the cuff airbag described in this application using a blood pressure measuring device is merely a preferred embodiment and is not intended to limit the application scope of the cuff airbag. For example, the cuff airbag of this application can also be used in electronic devices such as stethoscopes, and such adjustments do not deviate from the protection scope of the cuff airbag of this application.

[0032] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also mean including the plural forms. The terms “comprising,” “including,” and “having” are inclusive and therefore indicate the presence of the stated features, elements, and / or components, but do not exclude the presence or addition of one or more other features, elements, components, and / or combinations thereof.

[0033] Although terms such as "first," "second," etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Furthermore, in the description of this application, unless otherwise expressly specified and limited, the terms "set up" and "connected" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a direct connection or an indirect connection via an intermediate medium. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "end," "length," "inner," "outer," etc. Such spatial relative terms are intended to include different orientations of the mechanism in use or operation, in addition to those depicted in the figure. For example, if the mechanism in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The mechanism may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0035] To address the problem of excessive data noise caused by placing the existing sensor on the outside of the cuff, this application proposes to place the piezoelectric sensor on the inner wall of the cuff 10 to solve the technical problems of excessive interference data and poor measurement reliability in existing blood pressure measuring devices. This provides a more stable working environment for the piezoelectric sensor, thereby reducing and eliminating the interference of external noise on the piezoelectric sensor's acquisition of brachial artery pulsation signals.

[0036] like Figures 1 to 5As shown, this application embodiment provides a cuff airbag 100 for a blood pressure measuring device. The cuff airbag 100 includes an airbag 10, at least two piezoelectric sensors 20, and an air tube connector 30. An air chamber 103 is formed inside the airbag 10. The at least two piezoelectric sensors 20 are spaced apart on the inner wall of the airbag 10 and are electrically connected in series. The air tube connector 30 is disposed on the outer wall of the airbag 10 and includes a first airway 301 communicating with the air chamber 103 and an electrical connector 31 electrically connected to the at least two piezoelectric sensors 20.

[0037] In this embodiment, the cuff bladder 100 proposed in this application reduces or even eliminates external interference to the piezoelectric sensors' acquisition of brachial artery pulsation signals by distributing at least two piezoelectric sensors 20 at intervals on the inner wall of the bladder 10. This allows the blood pressure measuring device to obtain accurate brachial artery pulsation signals and thus Korotkoff sound signals. Based on the Korotkoff sound signals and the pressure signals acquired by the pressure sensors, the user's blood pressure information is obtained. This solution effectively shields the piezoelectric sensors from external noise signals by placing them on the inner wall of the cuff bladder, thereby improving the accuracy of blood pressure measurement.

[0038] Specifically, the cuff airbag 100 provides a relatively stable pressure measurement environment for the piezoelectric sensor 20, thereby reducing the detection distortion of the piezoelectric sensor 20. Moreover, by placing the piezoelectric sensor 20 on the inner wall of the airbag 100, the internal space of the cuff airbag 100 is effectively utilized, which protects the piezoelectric sensor 20 and helps to extend the service life of the piezoelectric sensor.

[0039] It should be noted that the embodiments of this application do not limit the specific number of piezoelectric sensors 20, because the inventive point of this application is to set the piezoelectric sensors 20 on the inner wall of the airbag 10. The specific number of piezoelectric sensors 20 can be set according to actual needs. For example, the number of piezoelectric sensors 20 can be two, three or four. These embodiments are all within the protection scope of the cuff airbag 100 of this application. As for other embodiments of piezoelectric sensors 20, they will not be described one by one here.

[0040] The specific structure of the cuff airbag 100 in this embodiment will be described in detail below.

[0041] like Figures 2 to 4 As shown, in some embodiments, at least two piezoelectric sensors 20 are spaced apart along the length of the airbag 10, and at least two piezoelectric sensors are connected in series.

[0042] In this embodiment, by distributing at least two piezoelectric sensors 20 at intervals along the length of the airbag 10, ensuring that the user wears it on the left or right arm, at least one piezoelectric sensor is positioned at the brachial artery on one side of the arm, the effective measurement range of the at least two piezoelectric sensors 20 can be improved.

[0043] like Figures 1 to 3 As shown, in some embodiments, the cuff airbag 100 further includes a ribbon cable 21 connected to at least two piezoelectric sensors 20, and an electrical connector 31 electrically connected to the ribbon cable 21.

[0044] In this embodiment, connecting the two piezoelectric sensors 20 via the ribbon cable 21 improves the efficiency and accuracy of piezoelectric signal transmission from the two sensors 20. Furthermore, the ribbon cable 21 is made of a flexible material, giving it a certain degree of bending capability to adapt to the bending conditions encountered when the cuff 100 measures blood pressure.

[0045] Furthermore, the ribbon cable 21 is provided with at least two solder points corresponding to at least two piezoelectric sensors 20, and the electrical connector 31 includes a wire harness 311, which is provided with at least two connecting wires 312 connecting the at least two solder points.

[0046] Two connecting wires 312 are soldered to two solder points of the ribbon cable 21, and can transmit the two piezoelectric signals of the two piezoelectric sensors 20 to the main unit of the blood pressure measuring device, thereby improving the reliability of the transmission of the two piezoelectric signals of the two piezoelectric sensors 20 and reducing the phenomenon of signal transmission interruption caused by the two connecting wires 312 and the two piezoelectric sensors 20 falling off.

[0047] Furthermore, the two solder joints are configured as two solder holes opened on the ribbon cable 21, and the two connecting lines 312 are configured with two contacts that are electrically in contact with the two solder holes respectively. The two connecting lines 312 are first inserted into the two solder holes through the two contacts, and then soldered, thereby improving the reliability of signal transmission between the two connecting lines 312 and the two piezoelectric sensors 20.

[0048] like Figure 3 As shown, in some embodiments, the ribbon cable 21 is elastic along the length of the airbag 10.

[0049] In this embodiment, by making the ribbon cable 21 elastic along the length of the airbag 10, the effective measurement range of the cuff airbag 100 can be improved. Specifically, when the cuff airbag 100 wraps around a thicker arm, at least two piezoelectric sensors 20 can be positioned at the arteries of the arm to measure the user's blood pressure by stretching the ribbon cable 21.

[0050] When the cuff airbag 100 wraps around a thinner arm, at least two piezoelectric sensors 20 can be positioned at the arteries in the arm to measure the user's blood pressure by further compressing the ribbon cable 21.

[0051] like Figures 3 to 5 As shown, in some embodiments, the airbag 10 includes a first flap 11 and a second flap 12 that are fitted together, forming an air cavity 103 between the first flap 11 and the second flap 12, and at least two piezoelectric sensors 20 are disposed on the inner wall of the first flap 11.

[0052] In this embodiment, by setting the airbag 10 as a first airbag piece 11 and a second airbag piece 12 that fit together, the overall assembly efficiency of the cuff airbag 100 can be improved.

[0053] Specifically, during the assembly of the cuff airbag 100, one side of the piezoelectric sensor 20 is fixed to the inner wall of the first bladder piece 11, and then the piezoelectric sensor 20 is soldered to the ribbon cable 21. The ribbon cable 21 is then connected to the electrical connector 31 inside the air tube connector 30. The air tube connector 30 is then connected to the airbag 10 by heat pressing, thus completing the overall assembly of the cuff airbag 100.

[0054] like Figure 3 As shown, in some embodiments, the second capsule 12 is provided with an air port 120 that connects the air chamber 103 to the tracheal connector 30, and a tracheal base 121 provided on the inner wall of the second capsule 12. The tracheal base 121 is provided with an adapter port 1211 at a position corresponding to the air port 120, and the tracheal connector 30 is connected to the tracheal base 121.

[0055] In this embodiment, the tracheal base 121 has a more stable structure and mechanical properties than the second flap 12, thereby reducing the phenomenon of tearing and damage to the tracheal connector 30 at the tracheal base 121.

[0056] Specifically, the tracheal connector 30 and the tracheal base 121, as well as the tracheal base 121 and the second cuff piece 12, are connected by heat pressing, thereby improving the connection stability and sealing between the tracheal connector 30 and the tracheal base 121, and between the tracheal base 121 and the second cuff piece 12, and reducing the depressurization phenomenon of the cuff airbag 100 at the tracheal connector 30.

[0057] like Figure 2 and Figure 3As shown, in some embodiments, the air inlet 120 is positioned at the center of at least two orthogonal projection positions of the first piezoelectric sensor 20 onto the second piezoelectric sensor 12 after the first piezoelectric sensor 11 and the second piezoelectric sensor 12 are attached. That is, after the first piezoelectric sensor 11 and the second piezoelectric sensor 120 are attached, the endotracheal connector 30 connected to the air inlet 120 is located between the at least two piezoelectric sensors. This is to better eliminate wrinkles in the piezoelectric sensor portion caused by the cuff curling when the cuff wraps around the arm, thereby effectively ensuring that the piezoelectric sensor is better aligned with the position of the brachial artery to collect signals and improving the accuracy of brachial artery pulsation signal acquisition.

[0058] Furthermore, the portion of the airbag 10 located between at least two piezoelectric sensors 20 is provided with pleats distributed along the length direction of the airbag 10.

[0059] By providing pleats on the cuff 10, the effective measurement range of the cuff 100 can be improved. Specifically, when the user measures a thicker arm, the cuff 100 can be stretched and unfolded so that the cuff 10 can wrap around the artery in the arm, thereby enabling at least two piezoelectric sensors 20 to measure blood pressure at the artery in the arm.

[0060] When the user measures a thinner arm, the cuff 100 can be further folded so that the cuff 10 can wrap around the artery in the arm, thereby enabling at least two piezoelectric sensors 20 to measure blood pressure at the artery in the arm.

[0061] like Figures 1 to 3 As shown, in some embodiments, the periphery of the first pouch 11 and the periphery of the second pouch 12 are both provided with a hot-melt welding part 101, and the first pouch 11 and the second pouch 12 are bonded together by the hot-melt welding part 101 to form a peripheral sealing structure of the cuff airbag 100.

[0062] In this embodiment, by welding and sealing the periphery of the first balloon 11 and the periphery of the second balloon 12 through hot-melt welding, the connection stability and sealing performance of the first balloon 11 and the second balloon 12 can be improved, and the leakage of the air chamber 103 of the airbag 10 at the connection between the first balloon 11 and the second balloon 12 can be reduced.

[0063] Specifically, the periphery of the first capsule 11 and the periphery of the second capsule 12 can be sealed by ultrasonic vibration heat welding.

[0064] Furthermore, positioning structures 102 are provided at the corners of the first pocket 11 and the corners of the second pocket 12. The positioning structures 102 are located around the hot melt welded part 101 and can be detached from the cuff airbag 100 after the peripheral sealing structure is formed.

[0065] The positioning structure 102 has the function of attaching the first capsule 11 and the second capsule 12 at a designated position, thereby reducing the phenomenon of misalignment or incomplete attachment between the first capsule 11 and the second capsule 12.

[0066] Specifically, the positioning structure 102 includes a button structure or a magnetic element. After the first capsule 11 and the second capsule 12 are attached to each other through the positioning structure 102, the first capsule 11 and the second capsule 12 are connected by ultrasonic vibration heat welding. After the first capsule 11 and the second capsule 12 are sealed by heat fusion welding, the positioning structure 102 can be removed from the airbag 10, thereby reducing the redundant structure of the positioning structure 102 on the airbag 10.

[0067] like Figure 1 and Figure 2 As shown, in some embodiments, the tracheal connector 30 is connected to the tracheal tube 32, the tracheal tube 32 is provided with a second airway 321, and the electrical connector 31 passes through the second airway 321 from the first airway 301 and is electrically connected to the pneumatic plug 33.

[0068] In this embodiment, the piezoelectric sensor 20 is disposed on the inner wall of the airbag 10, and the electrical connector 31 passes through the first air passage 301 and the second air passage 321 to be electrically connected to the pneumatic plug 33. With this arrangement, the piezoelectric signal of the piezoelectric sensor 20 can be transmitted to the host through the electrical connector 31 in the air tube 32, and the air pressure change in the cuff airbag 100 can be transmitted through the second air passage 321 in the air tube 32. This makes full use of the internal space of the cuff airbag 100 and the air tube 32, effectively reducing wiring costs.

[0069] Specifically, the trachea 32 is configured as a flexible tube, which can bend according to the usage environment, thereby improving the adaptability of the trachea 32 to the usage environment.

[0070] like Figure 6 As shown, the second aspect of this application provides a cuff 1000, including a cuff airbag 100 and a cuff sleeve 200, wherein the cuff airbag 100 is disposed within the cuff sleeve 200, and the cuff airbag 100 is configured as the cuff airbag 100 of the first aspect of this application.

[0071] The cuff 1000 provided in this embodiment includes a cuff sleeve 200, which protects the cuff airbag 100 and prevents damage to the cuff airbag 100 during use, thus affecting the blood pressure measurement results.

[0072] In this embodiment, the cuff 1000 provided by this application has all the technical effects of the cuff airbag 100 provided by the first aspect embodiment of this application, and will not be described again here.

[0073] The third aspect of this application provides a blood pressure measuring device, which includes a main unit, an electric plug 33, and a cuff bladder 100. The cuff bladder 100 is connected to the main unit through the electric plug 33, and the main unit inflates the cuff bladder 100 through the electric plug 33. The cuff bladder 100 is configured as the cuff bladder 100 of the first aspect of this application.

[0074] In this embodiment, when the main unit of the blood pressure measuring device is connected to the cuff bladder 100 via the pneumatic plug 33, the trachea 32, and the trachea connector 30, the blood pressure measuring device inflates the bladder 10 through the air chamber inside the main unit and the second airway 321 inside the trachea 32. Subsequently, the air pressure inside the bladder 10 changes during the blood pressure measurement process. At least two piezoelectric sensors 20 can detect and generate piezoelectric signals at the user's brachial artery. Finally, the piezoelectric signals of the piezoelectric sensors 20 are transmitted to the main unit through the electrical connector 31 inside the trachea 32, and the changes in air pressure inside the cuff bladder 100 are transmitted through the second airway 321 inside the trachea 32, thereby completing the blood pressure measuring function of the blood pressure measuring device.

[0075] Furthermore, the embodiments of this application only focus on the structures of the cuff airbag 100 and the blood pressure measuring device that are related to the improvements of this application, and do not mean that the cuff airbag 100 and the blood pressure measuring device do not have other structures, which will not be described in detail here.

[0076] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of protection of this application.

Claims

1. A cuff-type airbag for use in a blood pressure measuring device, characterized in that, The cuff airbag (100) includes: An airbag (10) has an air cavity (103) formed inside it; At least two piezoelectric sensors (20) are spaced apart on the inner wall of the airbag (10) and are electrically connected. The tracheal connector (30) is disposed on the outer wall of the airbag (10). The tracheal connector (30) includes a first airway (301) communicating with the air chamber and an electrical connector (31) electrically connected to at least two of the piezoelectric sensors (20).

2. The cuff airbag according to claim 1, characterized in that, At least two of the piezoelectric sensors (20) are spaced apart along the length of the airbag (10), and at least two of the piezoelectric sensors (20) are connected in series.

3. The cuff airbag according to claim 1, characterized in that, The cuff airbag (100) also includes a ribbon cable (21) that connects at least two of the piezoelectric sensors (20), and the electrical connector (31) that is electrically connected to the ribbon cable (21).

4. The cuff airbag according to claim 3, characterized in that, The cable (21) is elastic along the length of the airbag (10).

5. The cuff airbag according to claim 1, characterized in that, The airbag (10) includes a first bladder piece (11) and a second bladder piece (12) that are attached to each other, and the air cavity (103) is formed between the first bladder piece (11) and the second bladder piece (12). At least two piezoelectric sensors (20) are disposed on the inner wall of the first bladder piece (11).

6. The cuff airbag according to claim 5, characterized in that, The second capsule (12) is provided with an air port (120) that connects the air chamber to the tracheal connector (30), and a tracheal base (121) provided on the inner wall of the second capsule (12). The tracheal base (121) is provided with an adapter port (1211) at a position corresponding to the air port (120), and the tracheal connector (30) is connected to the tracheal base (121).

7. The cuff airbag according to claim 6, characterized in that, The air inlet (120) is located at the center of at least two orthogonal projection positions of the piezoelectric sensors (20) onto the second capsule (12) after the first capsule (11) and the second capsule (12) are attached.

8. The cuff airbag according to claim 5, characterized in that, The periphery of the first bladder (11) and the periphery of the second bladder (12) are provided with a hot melt welding part (101). The first bladder (11) and the second bladder (12) are bonded together through the hot melt welding part (101) to form the periphery sealing structure of the cuff airbag (100).

9. The cuff airbag according to any one of claims 1-8, characterized in that, The tracheal connector (30) is connected to the tracheal tube (32), the tracheal tube (32) is provided with a second airway (321), and the electrical connector (31) passes through the second airway (321) from the first airway (301) and is electrically connected to the pneumatic plug (33).

10. A cuff, characterized in that, It includes a cuff airbag and a cuff sleeve, wherein the cuff airbag is disposed within the cuff sleeve, and the cuff airbag is configured as the cuff airbag (100) as described in any one of claims 1 to 9.

11. A blood pressure measuring device, characterized in that, The blood pressure measuring device includes a main unit, an electric plug (33), and a cuff air bag (100). The cuff air bag (100) is connected to the main unit through the electric plug (33). The main unit inflates the cuff air bag (100) through the electric plug (33). The cuff air bag (100) is configured as the cuff air bag (100) according to any one of claims 1 to 9.

Images