Cuff and blood pressure monitor

Abstract

The present application relates to the field of medical technology, and more specifically, to a cuff and a sphygmomanometer, wherein the blood pressure measuring device of the sphygmomanometer is connected to the airbag of the cuff through a trachea, and the cuff comprises a cuff body, an airbag is arranged on the inner side or interlayer of the cuff body, a pull ring is arranged on the outer side of the cuff body, and a winding distance is reserved between the head end of the airbag and the pull ring to limit the end of the airbag from passing through the pull ring when the arm circumference is small. The cuff provided by the present application has a reserved winding distance, and when the sphygmomanometer is used to measure a subject with a small arm circumference, the airbag will not be folded in reverse, and is applicable to a wide range of arm circumferences, is not prone to local squeezing and pain, and has a good user experience.

Description

Technical Field

[0001] The present application relates to the field of medical technology, and in particular to a cuff and a sphygmomanometer. Background Art

[0002] In the prior art, in order to accommodate a larger arm circumference range, the length of the air bag in the cuff is usually set to be longer. When the cuff is wrapped around a smaller arm circumference to measure blood pressure, the air bag will pass through the pull ring and fold. When the air bag is inflated, a higher pressure will be formed at the edge of the folded position where the air bag passes through the pull ring. The subject's limbs will feel different in the circumferential direction of the cuff. The limb part at the edge of the folded position where the air bag passes through the pull ring will feel a strong sense of squeezing or even pain, which will cause discomfort and a poor experience. Summary of the invention

[0003] The present application aims to provide a cuff and a sphygmomanometer to solve the problem of airbag folding when the cuff is suitable for a larger arm circumference range in the prior art.

[0004] The embodiment of the present application is implemented as follows:

[0005] In a first aspect, an embodiment of the present application provides a cuff, comprising:

[0006] cuff body;

[0007] An air bag is arranged on the inner side or interlayer of the cuff body;

[0008] A pull ring is arranged on the outer side of the cuff body, and a winding distance is reserved between the head end of the airbag and the pull ring to limit the end of the airbag from passing through the pull ring when the arm circumference is small.

[0009] If you want to avoid the air bag from folding, you need to make the air bag not pass through the pull ring as much as possible, and only the end of the cuff needs to pass through the pull ring and be folded and pasted in the opposite direction. If you want to ensure that the air bag does not fold, and that arms of different arm circumferences are surrounded by the air bag in a certain proportion (for example, at least 80% recommended by the US AHA), currently this can only be achieved by matching the same blood pressure monitor with cuffs of various specifications.

[0010] The cuff provided by the present application can solve the problem of airbag folding and narrow application range of the cuff by reserving a winding distance between the head end of the airbag and the position of the pull ring, that is, moving the position of the pull ring from the head end of the cuff toward the end of the cuff, so that there is a reserved winding distance between the position of the pull ring and the head end of the airbag, and the head and end of the airbag in the cuff can overlap within the range of the reserved winding distance, so that when measuring on a smaller arm circumference, the end of the airbag will not pass through the pull ring. The cuff provided by the present application has a reserved winding distance, and when measuring a subject with a smaller arm circumference, the airbag will not fold in the opposite direction. It is applicable to a wide range of arm circumferences, is not prone to local squeezing and pain, and has a good user experience.

[0011] In addition, the existing airbag is folded backwards after pulling the ring, and during the inflation process, the Velcro will be constantly pulled up, causing noise interference, especially for a blood pressure monitor that uses a sound sensor to obtain sound signals to determine blood vessel sounds. The quality of the sound signal will seriously affect the accuracy of the blood pressure monitor test. The cuff provided in the present application does not have the situation where the airbag is folded backwards, so the Velcro is not easily pulled up when the airbag is inflated, and it is not easy to generate noise that affects the test accuracy.

[0012] Optionally, in an embodiment of the present application, the head end of the airbag is located at the head end of the cuff body.

[0013] By arranging the head end of the air bag at the head end of the cuff, cuff fabric is saved.

[0014] Optionally, in an embodiment of the present application, the length of the cuff body is greater than 1.25 times the sum of the length of the airbag and the reserved winding distance. By setting it in this way, when the airbag covers 80% of the arm circumference, the end of the cuff body can be fixed through the pull ring.

[0015] Optionally, in an embodiment of the present application, the width of the airbag is 11.5 to 14.5 cm.

[0016] Optionally, in an embodiment of the present application, the cuff body is provided with an attachment plate, and when the head end and the tail end of the airbag overlap, the attachment plate is used to separate the head end and the tail end of the airbag.

[0017] By providing an attachment plate to separate the overlapping parts of the airbags, wrinkles are not easily formed on the overlapping parts of the airbags, the pressurization is more uniform, and the test subject has a better experience.

[0018] Optionally, in an embodiment of the present application, the attachment plate is arranged within the range of the reserved winding distance.

[0019] The range of the reserved winding distance is the range where the front and rear ends of the airbag mainly overlap. By arranging the aforementioned attachment plate only within the range of the reserved winding distance, the problem of wrinkles generated at the overlapping parts of the airbag during inflation can be alleviated.

[0020] Optionally, in an embodiment of the present application, the attachment plate is made of a flexible polymer material sheet.

[0021] The flexible nature of the attachment plate makes it less likely to be damaged during repeated unwinding and winding.

[0022] Optionally, in an embodiment of the present application, the cuff body is further provided with a first adhesive member and a second adhesive member, and the first adhesive member cooperates with the second adhesive member to fix the cuff body.

[0023] Optionally, in an embodiment of the present application, the second adhesive component is close to the end of the cuff body, and the first adhesive component covers a position between the pull ring and the second adhesive component.

[0024] By arranging the first adhesive component at a position close to the pull ring, arranging the second adhesive component at the end of the cuff body, and making the first adhesive component cover the range from the pull ring to the second adhesive component, the matching range of the first adhesive component and the second adhesive component is increased, so that the matching range of the two can match the measurable arm circumference range of the cuff.

[0025] In a second aspect, an embodiment of the present application provides a sphygmomanometer, which includes a blood pressure measuring device and the aforementioned cuff, wherein the blood pressure measuring device is connected to an air bag of the cuff via a trachea.

[0026] The blood pressure monitor provided in the embodiment of the present application has a wide range of arm circumference that can be measured, and the airbag will not fold backward within the measuring range, so it is not easy to produce local squeezing and pain, and the user experience is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a schematic cross-sectional view of a cuff in the prior art when the arm circumference is small;

[0029] Figure 2 A schematic plan view of the outer side of a cuff provided in an embodiment of the present application;

[0030] Figure 3 A schematic diagram of the three-dimensional structure of a cuff provided in an embodiment of the present application at a first viewing angle;

[0031] Figure 4 A schematic diagram of the three-dimensional structure of the cuff provided by an embodiment of the present application at a second viewing angle;

[0032] Figure 5 A schematic cross-sectional view of the cuff provided in an embodiment of the present application when the arm circumference is small.

[0033] Icons: 100 - cuff body; 200 - pull ring; 300 - first adhesive part; 400 - second adhesive part; 500 - reserved winding distance section; 600 - trachea; 700 - airbag; 800 - attachment plate; a - cuff head end position; b - pull ring setting position; c - airbag end position; d - cuff end position; 100' - cuff; 200' - pull ring; 700' - airbag. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiment is a sub-embodiment of the present application, rather than an embodiment of the entire section. Generally, the components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0035] In the description of this application, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, if the terms "first", "second", etc. appear in the description of this application, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0036] Example

[0037] The cuff 100' in the prior art is wound as follows: Figure 1 As shown, Figure 1The dotted line in the figure indicates the airbag 700'. The end of the cuff 100' passes through the pull ring 200' and is pulled in the reverse direction to fix the arm, so that the arm is covered by the cuff 100' with an appropriate degree of tightness. Since the airbag 700' needs to cover a certain proportion of the arm circumference, the airbag 700' is generally folded at the pull ring 200' in the prior art. When the airbag 700' is inflated, its folded part swells, which may continuously pull up the Velcro at the folded part to generate noise, interfere with the test accuracy of the sphygmomanometer, and may also form a higher pressure at the edge of the folded part where the airbag 700' passes through the pull ring 200', causing the subject to feel a strong sense of squeezing or even pain.

[0038] If you want to avoid the airbag 700' from folding, you need to prevent the airbag 700' from passing through the pull ring 200', and only let the end of the cuff 100' pass through the pull ring 200' and be folded and pasted in the opposite direction. According to the American Heart Association (AHA), when measuring, the airbag 700' needs to surround 80% or more of the arm circumference in the circumferential direction. Therefore, if you want to ensure that the airbag 700' does not fold and the arm is surrounded by the airbag 700', currently it can only be achieved by matching the same blood pressure monitor with cuffs 100' of various specifications.

[0039] Moreover, if the specifications of the cuff 100' do not match the arm circumference of the subject, the measurement results will also be affected. According to research, when the arm circumference is ≥27cm, the proportion of false hypertension when measuring blood pressure with an ordinary cuff (specifications of 12cm×22cm) is 13.3% for systolic blood pressure and 27.1% for diastolic blood pressure; while the proportion of false hypertension when measuring blood pressure with an ideal cuff (i.e., when the air bag 700' covers 80% of the arm circumference to just cover the entire arm circumference) is significantly lower, 1.8% for systolic blood pressure and 4.8% for diastolic blood pressure, and the proportion of false hypertension when using diastolic blood pressure as the standard is higher than that when using systolic blood pressure as the standard.

[0040] In actual use, for example in the United States, four types of cuffs are generally used: small adult type (width × length is 12 × 22 cm), adult type (width × length is 16 × 30 cm), large adult type (width × length is 16 × 36 cm) and adult leg type (width × length is 16 × 42 cm). The cuffs suitable for adult arms are divided into small adult type, adult type and large adult type to match different arm circumference ranges between 22 and 45 cm.

[0041] The embodiment of the present application provides a cuff and a sphygmomanometer having the cuff, the sphygmomanometer further comprising a blood pressure measuring device, the blood pressure measuring device being connected to the airbag 700 of the cuff via an air tube 600. The cuff can solve the problem of folding of the airbag 700 and the problem of a small application range.

[0042] like Figure 2 As shown, Figure 2The cuff body 100 is made of flexible materials such as nylon cloth, the airbag 700 is arranged on the inner side or interlayer of the cuff body 100, and the pull ring 200 is arranged on the outer side of the cuff body 100.

[0043] In this embodiment, the airbag 700 is arranged starting from the cuff head end position a and extending to the middle of the cuff, that is, the head end of the airbag 700 is aligned with the head end of the cuff body 100, and the airbag end position c is located in the middle of the cuff body 100. In other embodiments, the head end of the airbag 700 may not be aligned with the head end of the cuff body 100.

[0044] The pull ring 200 is arranged at a pull ring setting position b away from the cuff head end position a, so that a reserved winding distance section 500 is provided between the pull ring 200 and the head end of the airbag 700, and the length of the reserved winding distance section 500 is the reserved winding distance ab.

[0045] One end of the air tube 600 of the sphygmomanometer is connected to the blood pressure measuring device, and the other end passes through the cuff body 100 to connect to the air bag 700 .

[0046] When using, Figure 3 , Figure 4 As shown, the outer side of the cuff body 100 where the pull ring 200 is located is facing away from the arm, and the inner side of the first end of the cuff body 100 is first placed against the arm, and then the end of the cuff body 100 is held and wrapped around the arm, and the end of the cuff body 100 is passed through the pull ring 200, folded back and fixed. In actual use, the end of the cuff body 100 can also be passed through a portion of the pull ring 200 to form the cuff body 100 into a cylindrical shape, and after the arm is inserted into the center of the cylindrical shape, the end of the cuff body 100 is held and folded back and fixed.

[0047] The fixing method can be achieved by the first adhesive member 300 and the second adhesive member 400 provided on the cuff body 100. The first adhesive member 300 and the second adhesive member 400 can be a magnetic hook and loop fastener set provided on the outer side or interlayer of the cuff body 100, or a buckle set provided on the outer side of the cuff body 100. In this embodiment, the first adhesive member 300 is a Velcro fleece surface, and the second adhesive member 400 is a Velcro hook surface.

[0048] The first adhesive member 300 and the second adhesive member 400 are located on the side of the pull ring 200 away from the reserved winding distance section 500, the second adhesive member 400 is arranged near the end position d of the cuff, and the first adhesive member 300 is arranged near the pull ring relative to the second adhesive member 400. When the end of the cuff body 100 passes through the pull ring 200 and is reversely pulled to the first adhesive member 300, the first adhesive member 300 cooperates with the second adhesive member 400.

[0049] In order to ensure good fixation from a smaller arm circumference to a larger arm circumference, the first adhesive member 300 is used to cover the position between the pull ring 200 and the second adhesive member 400 .

[0050] Figure 5 The cross-sectional diagram of the cuff when it is wound around a smaller arm circumference is shown. At this time, the airbag end position c is close to the pull ring setting position b, the airbag 700 surrounds the arm, and the first and last parts of the airbag 700 overlap within the reserved winding distance ab.

[0051] Figure 5 In the case shown, the airbag 700 is just not folded back, and the arm circumference wrapped by the cuff body 100 is a smaller arm circumference. When the cuff body 100 wraps the arm tightly and the airbag 700 surrounds 80% of the arm circumference, the arm circumference wrapped by the cuff body 100 is a larger arm circumference. The cuff provided by the present application can wrap the arm within the range of smaller arm circumference to larger arm circumference, and the airbag 700 will not fold back within this range, and it is not easy to produce local squeezing and pain. The user experience is good, and the application range is wider than that of the cuffs in the prior art.

[0052] Since the air bag 700 is not folded in reverse, it is not easy to generate noise to affect the test accuracy. The problem of noise being easily generated due to the folding of the air bag 700 is also solved, and the measurement accuracy of the blood pressure monitor using the cuff is not affected.

[0053] As mentioned above, by setting the first end of the airbag 700 to be aligned with the first end of the cuff body 100, that is, the entire reserved winding distance section 500 is provided with the airbag 700, the material cost of making the cuff body 100 is saved and the wrapping is not affected.

[0054] When the airbag 700 is inflated, wrinkles may be generated on the overlapping part of the airbag 700. If wrinkles are generated, the accuracy and experience of the test may be affected to a certain extent. To alleviate this problem, the inventor sets an attachment plate 800 on the cuff body 100. The attachment plate 800 is used to keep the airbag 700 flat. When the head end of the airbag 700 and the end of the airbag 700 overlap, the overlapping part is not easy to form wrinkles, which makes the pressurization more uniform and the test subject's experience better.

[0055] The attachment plate 800 is made of a flexible polymer material sheet, such as a plastic sheet used in this embodiment. The flexible attachment plate 800 can withstand repeated deformation, is not easily damaged during repeated unfolding and winding, and has good durability.

[0056] The range of the reserved winding distance ab is the range where the head and tail ends of the airbag 700 mainly overlap. Optionally, the attachment plate 800 is correspondingly arranged in the reserved winding distance section 500, that is, the range of the reserved winding distance ab, which not only alleviates the problem of wrinkles generated at the overlapping parts of the airbag 700 during inflation, but also saves material costs, and the cuff is overall lightweight.

[0057] In addition, the attachment plate 800 can be made of a plastic sheet or other sheet material with toughness and elasticity, so that the attachment plate 800 has the characteristic of being able to recover the flexural deformation. The shape of the attachment plate 800 is an arc. If the attachment plate 800 is unfolded and then released, the attachment plate 800 will return to the arc shape. The attachment plate 800 can also be provided to facilitate wearing. When in use, the cuff body 100 can be quickly rolled around the arm under the drive of the attachment plate 800, and then the end of the cuff body 100 can be pulled through the pull ring 200 to tighten and fix it in the reverse direction, which speeds up the wearing speed and makes it more convenient to use.

[0058] The attachment plate 800 is lined in the interlayer of the cuff body 100. To ensure the squeezing effect of the airbag 700 on the arm, the airbag 700 is arranged close to the inner side of the cuff body 100, and the attachment plate 800 is arranged close to the outer side of the cuff body 100. Figure 5 As shown, the reserved winding distance section 500 of the cuff body 100 is directly set as the attachment plate 800, and the airbag 700 is pasted on the inner side of the attachment plate 800.

[0059] Optionally, the end of the cuff body 100 is set to be narrower, such as Figure 2 As shown, the width of the end of the cuff body 100 is gradually reduced to facilitate its passing through the pull ring 200.

[0060] According to the common distribution of arm circumference and BMI, people with arm circumference ranging from 22 to 35 cm account for the vast majority of the population. Arm circumferences of 35 to 42 cm can be found in overweight or fitness people, and people with arm circumference exceeding 42 cm are rarely seen in life and medical institutions.

[0061] Based on the above situation, the specifications of the cuff in the embodiment of the present application are set to be suitable for arm circumferences of 22 to 42 cm, and the sizes of the airbag 700 and the cuff body 100 are set with reference to the recommendations of the American Heart Association (AHA). The American Heart Association (AHA) recommends that in a blood pressure cuff, the length of the airbag should cover at least 80% of the measured arm circumference and the width should be at least 40% of the measured arm circumference.

[0062] Since the airbag 700 needs to surround 80% of the larger arm circumference, the length of the airbag 700 is configured to be 42×80%=33.6 cm, and the head end of the airbag 700 is aligned with the head end of the cuff body 100. The reserved winding distance ab is configured to be the length of the airbag 700 minus the smaller arm circumference value, that is, 33.6-22=11.6 cm. The length of the cuff body 100 is configured to be able to wrap the arm when the arm circumference is larger. In order to allow the length of the cuff body 100 to pass through the pull ring 200 and be folded back and fixed when the arm circumference is larger, the length of the cuff body 100 is configured to be greater than 1.25 times the sum of the length of the airbag 700 and the reserved winding distance ab. In addition, the first adhesive member 300 and the second adhesive member 400 on the cuff body 100 are correspondingly configured to be able to cooperate and fix when the arm circumference is smaller or larger.

[0063] In terms of the width design of the airbag 700, if referring to the recommendations of the American Heart Association (AHA), the width of the airbag 700 can be configured to be 42×40%=16.8 cm, but in the specific implementation, further tests and experimental inspections are required from the perspective of the product's blood pressure test accuracy and wearing experience. In order to test the applicability of the cuff provided in this embodiment, the applicability measurement is carried out in combination with the relevant product standards in the "Non-invasive Automatic Blood Pressure Meter" (YY0670-2008) and the relevant product standards in the International Organization for Standardization (ISO), and a certain number of people who meet certain distribution characteristics (including arm circumference, age, gender, etc.) are randomly selected for testing. It is found that the width specification of the cuff is slightly reduced, such as setting the width of the airbag to 11.5-14.5 cm, which can better adapt to the design of people with different arm lengths and arm circumferences, especially for people with large arm circumferences but average upper arm lengths (the arm circumference and upper arm length in the crowd are not linearly correlated), and the test experience is improved, and the accuracy results of the product meet the standard requirements. It can be seen that due to the effective compression of the airbag 700 on the limb, the airbag 700 effectively compresses the blood vessels of the tested limb. In terms of the length and width of the airbag 700, the length factor may be more important than the width factor. In this specific embodiment, the length and width of the airbag 700 are set to fully meet the requirement of effectively compressing the blood vessels of the tested limb, thereby achieving a blood pressure test with reasonable accuracy.

[0064] Considering the above factors, please refer to Figure 1 The cuff specifications provided in the embodiment of the present application are as follows:

[0065] The length ad of the cuff body 100 is set to be approximately 60 cm, the length ac of the airbag 700 is set to be approximately 33.6 cm, the reserved winding distance ab is approximately 11.6 cm, the pull ring 200 is set at the pull ring setting position b, and the attachment plate 800 is set in the reserved winding distance section 500, the attachment plate 800 extends from the cuff head end position a to the pull ring setting position b, the width of the airbag 700 and the attachment plate 800 are both approximately 12.5 cm, and due to sewing reasons, the width of the cuff body 100 is equal to the width of the airbag 700 or slightly larger than the width of the airbag 700.

[0066] The cuff body 100 is made of double-layer nylon cloth, and the attachment plate 800 and the airbag 700 are fixed between the double-layer nylon cloth, wherein the attachment plate 800 is close to the outside of the cuff body 100, and the airbag 700 is close to the inside of the cuff body 100. The pull ring 200 is located on the outer side of the cuff body 100 and is sewn on the surface of the outer nylon cloth. The first adhesive component 300 is a Velcro fleece surface, and the second adhesive component 400 is a Velcro hook surface. The first adhesive component 300 and the second adhesive component 400 are located on the outer side of the cuff body 100 and are sewn on the surface of the outer nylon cloth of the cuff body 100, wherein the second adhesive component 400 is close to the cuff end position d, and a small distance is reserved between the second adhesive component 400 and the cuff end position d so that the end of the cuff body 100 can easily pass through the pull ring 200, and the length of the second adhesive component 400 is configured to be 5 cm, and the first adhesive component 300 extends from the pull ring setting position b to connect with the second adhesive component 400.

[0067] The embodiment of the present application improves the cuff so that the cuff can be suitable for people with arm circumferences of 22 to 42 cm. Within the arm circumference range, the airbag 700 will not bend back. Figure 1 In the prior art shown, the length of the airbag 700' in the cuff 100' is set to be longer. When the cuff 100' is wrapped around a smaller arm circumference to measure blood pressure, the airbag 700' will pass through the pull ring 200' and fold. Or compared with the prior art that requires the configuration of three specifications of cuffs, the cuff provided in the embodiment of the present application is applicable to a wide range of arm circumferences, is easy to use, and has a better user experience. In other embodiments, the specifications of the cuff can be adjusted according to the target arm circumference range to make it applicable to the target arm circumference range.

[0068] To sum up, the cuff provided in the present application has a reserved winding distance. When measuring a subject with a smaller arm circumference, the airbag 700 will not fold backwards. It is applicable to a wide range of arm circumferences, is not prone to local squeezing and pain, and has a good user experience. The test results of a blood pressure monitor equipped with the cuff are accurate, and a wide range of arm circumferences can be measured. There is no need to frequently replace cuffs of different specifications, and it is easy to use.

[0069] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A cuff, characterized in that: include: cuff body; An air bag is arranged on the inner side or interlayer of the cuff body; A pull ring is arranged on the outer side of the cuff body, and a winding distance is reserved between the head end of the airbag and the pull ring to limit the end of the airbag from passing through the pull ring when the arm circumference is small; The cuff body is provided with an attachment plate, and when the head end and the tail end of the airbag overlap, the attachment plate is used to separate the head end and the tail end of the airbag; The attachment plate is arranged within the range of the reserved winding distance; The attachment plate is made of a flexible polymer material sheet, so that it is not easily damaged during repeated unfolding and winding.

2. A cuff according to claim 1, characterized in that: The head end of the air bag is located at the head end of the cuff body.

3. A cuff according to claim 2, characterized in that: The length of the cuff body is greater than 1.25 times the sum of the length of the airbag and the reserved winding distance.

4. A cuff according to claim 1, characterized in that: The width of the airbag is 11.5 to 14.5 cm.

5. The cuff according to claim 1, characterized in that: The cuff body is further provided with a first adhesive member and a second adhesive member, and the first adhesive member cooperates with the second adhesive member to fix the cuff body.

6. A cuff according to claim 5, characterized in that: The second adhesive component is close to the end of the cuff body, and the first adhesive component covers the position between the pull ring and the second adhesive component.

7. A sphygmomanometer, characterized in that: It comprises a blood pressure measuring device and a cuff as claimed in any one of claims 1 to 6, wherein the blood pressure measuring device is connected to an air bag of the cuff via an air tube.

Images