Sphygmomanometer cuff and electronic sphygmomanometer

Abstract

The utility model relates to a sphygmomanometer cuff and an electronic sphygmomanometer, the sphygmomanometer cuff comprises a cuff body and an air bag arranged in the cuff body, the cuff body is provided with an air pressure signal detection module, and the air pressure signal detection module comprises an air pressure sensor; the air bag is provided with a first air bag connector and a second air bag connector which are communicated with the interior of the air bag. A probe of the air pressure sensor penetrates through the cuff body and is sealed in the first air bag connector, and the probe of the air pressure sensor extends into the air bag through the first air bag connector; the second air bag connector is communicated with an air guide pipe, and the end, away from the second air bag connector, of the air guide pipe is located outside the cuff body. Due to the fact that the probe of the air pressure sensor can directly stretch into the air bag, the air pressure in the air bag can be directly, effectively and accurately detected through the air pressure sensor, the air pressure sensor can be conveniently applied to the electronic sphygmomanometer, and the accuracy of the blood pressure detection result can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of blood pressure detection, and more specifically to a sphygmomanometer cuff and an electronic sphygmomanometer. Background Art

[0002] Using an electronic sphygmomanometer for non-invasive blood pressure measurement is the most commonly used blood pressure detection method in clinical medicine. In existing electronic sphygmomanometers, the air pump of the sphygmomanometer host is connected to one end of the airway tube, and the other end of the airway tube is connected to the air bag in the cuff. The signal acquisition module for detecting air pressure is set on the circuit board of the sphygmomanometer host, and the sensor for detecting air pressure signal on the signal acquisition module is usually located near the air outlet of the air pump of the sphygmomanometer host. During the inflation detection, the sensor located near the air outlet of the air pump of the sphygmomanometer host collects the pressure and pulse signals generated in the cuff air bag through the airway tube to calculate the blood pressure.

[0003] However, due to the defect of sensor layout, this existing electronic sphygmomanometer has some obvious problems during detection: first, the main unit of the sphygmomanometer will vibrate when the air pump inflates, which will cause the sensor to vibrate and easily collect vibration noise; second, because the sensor is arranged near the air outlet of the air pump, the measured air pressure is not the real and accurate air pressure inside the airbag, but may also be the air pressure at the air outlet of the air pump, which will bring the frequency disturbance of the air pump squeezing. For example, when the speed of the air pump is 3600 rpm (60Hz), the sensor may receive this 60Hz interference signal, and the frequency of the interference signal is different with different speeds; third, because the airway tube is easily moved by humans during the signal collection process, it will also interfere with the air pressure inside the airway tube detected by the sensor. This ultimately leads to inaccurate blood pressure detection results, so the layout structure of the sensor needs to be improved urgently. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a blood pressure cuff and an electronic blood pressure meter in view of the above-mentioned defects of the prior art.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] On the one hand, the utility model provides a blood pressure monitor cuff, comprising a cuff body and an air bag arranged in the cuff body, the cuff body being provided with an air pressure signal detection module, the air pressure signal detection module comprising an air pressure sensor; the air bag being provided with a first air bag interface and a second air bag interface connected to the interior thereof; the probe of the air pressure sensor passing through the cuff body and being sealed in the first air bag interface, the probe of the air pressure sensor extending into the interior of the air bag through the first air bag interface; the second air bag interface being connected with an air duct, the end of the air duct away from the second air bag interface being located outside the cuff body.

[0007] In some embodiments, the cuff body includes a winding portion and a fixing portion, the winding portion has an opening on one side, the fixing portion is disposed at the opening and is sealed to the opening; the air pressure sensor is disposed on an outer side of the fixing portion.

[0008] In some embodiments, the fixing portion is provided with a first through hole corresponding to the first airbag interface; the outer side surface of the fixing portion is fixedly covered with a mounting box, and the air pressure sensor is arranged in the mounting box and corresponds to the first through hole.

[0009] In some embodiments, the first airbag interface is connected to a sealing sleeve, and one end of the sealing sleeve away from the first airbag interface passes through the first through hole and seals and surrounds the probe of the air pressure sensor.

[0010] In some embodiments, the sealing sleeve is a silicone sleeve.

[0011] In some embodiments, the air pressure signal detection module further includes a circuit board disposed in the installation box, the circuit board is electrically connected to the air pressure sensor, and the circuit board is also electrically connected to a data transmission line.

[0012] In some embodiments, the data transmission line is disposed in the airway tube; one end of the data transmission line passes through the airway tube and is connected to the circuit board, and the other end of the data transmission line passes through an end of the airway tube away from the second airbag interface.

[0013] In some embodiments, a second through hole for one end of the data transmission line to pass through is formed on a side wall of one end of the air guide tube close to the second airbag interface, and the second through hole is sealedly connected to the data transmission line.

[0014] In some embodiments, the second through hole is sealed and connected to the data transmission line by glue.

[0015] On the other hand, the utility model also provides an electronic sphygmomanometer, comprising the sphygmomanometer cuff as described in any one of the above items.

[0016] The beneficial effect of the utility model is that, different from the prior art, in the sphygmomanometer cuff of the utility model, a first airbag interface and a second airbag interface are provided on the airbag, so that the probe of the air pressure sensor passes through the cuff body and is sealed in the first airbag interface, and then the probe of the air pressure sensor extends into the interior of the airbag through the first airbag interface, which is convenient for directly detecting the pressure inside the airbag. When used in the sphygmomanometer host for blood pressure detection, the airbag is inflated through the airway tube and the second airbag interface. As the airbag pressure in the cuff slowly decreases during the decompression process, the air pressure sensor probe located in the first airbag interface can directly, effectively and accurately detect the air pressure in the airbag, avoiding the influence of the vibration of the inflation pump, and can directly detect the real air pressure and pulse wave signal inside the airbag without transmitting the air pressure through the airway tube, so as to calculate a blood pressure value with higher accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view schematic diagram of the cross-sectional structure of the blood pressure monitor cuff in the embodiment of the utility model;

[0018] Figure 2 It is a front view schematic diagram of the overall structure of the blood pressure monitor cuff in the embodiment of the utility model;

[0019] Figure 3 It is a right side schematic diagram of the overall structure of the blood pressure monitor cuff in the embodiment of the utility model;

[0020] Figure 4 It is a three-dimensional schematic diagram of the overall structure of the blood pressure monitor cuff in the embodiment of the utility model;

[0021] Figure 5 It is a three-dimensional schematic diagram of the cross-sectional structure of the blood pressure monitor cuff in the embodiment of the utility model;

[0022] Figure 6 It is a structural schematic diagram of an electronic sphygmomanometer in an embodiment of the utility model;

[0023] Figure 7 This is a schematic diagram of an application scenario of an electronic sphygmomanometer in an embodiment of the utility model;

[0024] Names and serial numbers in the figure: blood pressure cuff - 100; cuff body - 1; air bag - 2; winding part - 10; fixing part - 11; air pressure signal detection module - 3; air pressure sensor - 30; first air bag interface - 20; second air bag interface - 21; air guide tube - 4; first through hole - 110; installation box - 5; circuit board - 31; data transmission line - 32; blood pressure monitor host - 200. DETAILED DESCRIPTION

[0025] The terms "first", "second", "third" and "fourth" etc. in the specification and claims of the utility model and the drawings are used to distinguish different objects rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices.

[0026] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0027] "Multiple" means two or more. "And / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the related objects are in an "or" relationship.

[0028] Moreover, the terms "up, down, front, back, left, right, upper end, lower end" etc. indicating directions are all based on the posture and position of the device or equipment described in this solution during normal use.

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the following will be described clearly and completely in combination with the technical solution in the embodiments of the utility model. Obviously, the described embodiments are partial embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.

[0030] Embodiment 1:

[0031] The present invention is described by taking the blood pressure cuff in a rolled-up state as an example. Figures 1 to 5As shown in the figure, a blood pressure cuff 100 includes a cuff body 1 and an air bag 2 arranged in the cuff body 1, the cuff body 1 is provided with an air pressure signal detection module 3, and the air pressure signal detection module 3 includes an air pressure sensor 30; the air bag 2 is provided with a first air bag interface 20 and a second air bag interface 21 connected to the interior of the air bag 2; the probe of the air pressure sensor 30 passes through the cuff body 1 and is sealed in the first air bag interface 20, and the probe of the air pressure sensor 30 extends into the interior of the air bag 2 through the first air bag interface 20; the second air bag interface 21 is connected to an air duct 4, and the end of the air duct 4 away from the second air bag interface 21 is located outside the cuff body 1.

[0032] Specifically, the cuff body 1 includes a winding portion 10 and a fixing portion 11. An opening (not shown in the drawings) is opened on one side of the winding portion 10. The fixing portion 11 is arranged at the opening (not shown in the drawings) and is sealedly connected to the opening (not shown in the drawings). The air pressure sensor 30 is arranged on the outer surface of the fixing portion 11.

[0033] In this embodiment, the winding portion 10 is used to be wound around the arm of the person being tested, and can swell to a certain extent and produce a certain deformation as the airbag 2 is inflated. The fixing portion 11 is used to install the air pressure signal detection module 3, and the fixing portion 11 is made of a hard plastic material and has a good supporting force. Among them, the size of the fixing portion 11 is adapted to the opening (not shown in the drawings), and the fixing portion 11 is placed in the opening (not shown in the drawings) and is sealed by gluing, pressing, etc., so as to be connected to the winding portion 10 as a whole.

[0034] Specifically, the fixing portion 11 is provided with a first through hole 110 corresponding to the first airbag interface 20. The outer side of the fixing portion 11 is fixed with a mounting box 5, which is square in shape, and the side of the mounting box 5 facing the fixing portion 11 is set to be open. The air pressure sensor 30 is arranged in the mounting box 5 and corresponds to the first through hole 110. The first airbag interface 20 is connected with a sealing sleeve (not shown in the drawings), and the end of the sealing sleeve (not shown in the drawings) away from the first airbag interface 20 passes through the first through hole 110 and airtightly surrounds the probe of the air pressure sensor 30, so that the probe of the air pressure sensor 30 is arranged inside the first airbag interface 20 and can be extended into the airbag 2 through the first airbag interface 20. Among them, the extension length of the probe of the air pressure sensor 30 in the airbag 2 is based on the ability to detect the air pressure signal, and can be designed and selected according to actual use requirements, and is not specifically limited here.

[0035] The sealing sleeve (not shown in the drawings), such as a silicone sleeve, has good elastic deformation capability and can be stably and tightly sleeved at a corresponding position on the air pressure sensor 30 to seal and surround the probe of the air pressure sensor 30. The length and diameter of the sealing sleeve (not shown in the drawings) can be designed and selected according to actual application requirements.

[0036] It should be noted that the length and diameter of the air guide tube 4 can be designed and selected according to actual application requirements. The accompanying drawings are only examples and do not constitute specific limitations.

[0037] Specifically, the air pressure signal detection module 3 also includes a circuit board 31 arranged in the installation box 5, and the circuit board 31 is electrically connected to the air pressure sensor 30, and the circuit board 31 is also electrically connected to the data transmission line 32. The circuit board 31 is provided with a signal processing module, which has a signal processing function. After the air pressure sensor 30 collects the air pressure signal, the signal processing module converts the air pressure signal into a digital signal and then transmits it to the host device via the data transmission line 32. The blood pressure and heart rate values ​​are obtained through calculation and processing by the host device. The host device is, for example, a sphygmomanometer host. Among them, the signal processing module is, for example, an existing signal processing chip, which is not specifically limited here.

[0038] In this embodiment, the data transmission line 32 is arranged in the air duct 4. Specifically, one end of the data transmission line 32 passes through the air duct 4 and is connected to the circuit board 31, and the other end of the data transmission line 32 passes through the end of the air duct 4 away from the second airbag interface 21. For example, a second through hole for passing one end of the data transmission line 32 is provided on the side wall of the end of the air duct 4 close to the second airbag interface 21, and the second through hole is sealed to the data transmission line 32. The sealing method is to use glue to prevent air leakage at the second through hole, so as to ensure the normal air tightness of the air duct 4.

[0039] The data transmission line 32 is located inside the air duct 4, and then one end of the data transmission line 32 is led out near the air outlet of the air duct 4, so that one end of the data transmission line 32 can be electrically connected to the circuit board 31. The air outlet of the air duct 4 is sealed and connected to the second airbag interface 21. When the air inlet of the air duct 4 is connected to the sphygmomanometer host 200, the other end of the data transmission line 32 is connected to the inner ring electrical terminal of the interface end of the sphygmomanometer host 200, and then the air inlet of the air duct 4 is wrapped around the outer ring of the port to achieve the connection with the air path of the sphygmomanometer host 200. The overall structure is simple, and it is easy to organize and store.

[0040] It is understandable that the data transmission line 32 and the airway tube 4 have different structural layouts, and the corresponding connection methods to the sphygmomanometer host 200 are also different. Here, only one connection method of the data transmission line 32 and the airway tube 4 to the sphygmomanometer host 200 is described. For example, in other embodiments, the data transmission line 32 can also be arranged outside the airway tube 4, and connected to the outer wall of the airway tube 4 by gluing or other bonding methods. Correspondingly, the sphygmomanometer host 200 should have an electrical terminal electrically connected to the data transmission line 32 and an air path interface connected to the airway tube 4.

[0041] In this embodiment, the airbag 2 is made of rubber material. The first airbag interface 20 and the second airbag interface 21 are both tubular interface structures made of hard plastic material, which facilitates the sealing sleeve (not shown in the drawings) and the air guide tube 4 to be tightly connected with the first airbag interface 20 and the second airbag interface 21 respectively through a tight sleeve connection. The first airbag interface 20 and the second airbag interface 21 are fixedly connected to the airbag 2 respectively.

[0042] It should be noted that the hard plastic material used in this embodiment is a common term in the art, and is compared with the soft plastic material that can produce elastic deformation, and there is no specific limitation on its hardness.

[0043] Embodiment 2:

[0044] The present invention is described in detail by taking the blood pressure cuff in a rolled-up state as an example. Figure 6 and Figure 7 As shown in , an embodiment of the utility model further provides an electronic sphygmomanometer, which includes the sphygmomanometer cuff 100 in the first embodiment.

[0045] Specifically, the electronic sphygmomanometer of this embodiment further includes a sphygmomanometer host 200, on which an air pump is provided, and one end of the air duct 4 away from the second airbag interface 21 (located outside the cuff body 1) is connected to the air outlet of the sphygmomanometer host 200. The sphygmomanometer host 200 has human-machine interaction functions such as keyboard, display, and voice broadcast. The air pump can be provided at any suitable position on the sphygmomanometer host 200 with reference to the prior art, and is not specifically limited here. The two ends of the air duct 4 and the data transmission line 32 are respectively and securely connected to the corresponding positions and modules of the sphygmomanometer host 200 and the cuff body 1 and the airbag 2.

[0046] The electronic sphygmomanometer of the embodiment of the utility model is used for non-invasive blood pressure measurement. Here, the detection steps are described in combination with the application of the sphygmomanometer cuff 100 provided in the first embodiment on the sphygmomanometer host 200, which mainly includes the following steps:

[0047] (1) The cuff body 1 is rolled up and fixed on the corresponding position of the arm of the subject. The tightness of the cuff body 1 should be such that a finger can be inserted.

[0048] (2) Press the start button of the sphygmomanometer host 200, and the air pump inflates the air bag 2 in the cuff body 1 through the air duct 4. The pressure in the air bag 2 slowly increases from zero, and the pulse wave detected by the air pressure sensor 30 suddenly disappears, that is, the arterial blood flow is completely blocked. At this time, continue to inflate a little air into the air bag 2, and then stop inflating.

[0049] (3) The sphygmomanometer host 200 controls the slow deflation, and the pulse signal will slowly increase from zero, become weaker after reaching the peak, and finally disappear.

[0050] (4) The sphygmomanometer host 200 processes the pulse waveform and gas pressure signal collected during the deflation process in real time through the gas pressure sensor 30, and calculates the systolic pressure, diastolic pressure, and mean pressure through the oscillometric method.

[0051] It should be noted that the structures shown in the corresponding drawings of Embodiment 1 and Embodiment 2 are examples, which are mainly used to illustrate the implementation of the specific implementation methods of the utility model and do not limit the specific structures thereof.

[0052] The above contents are further detailed descriptions of the utility model in combination with specific implementation methods, and it cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, several equivalent substitutions or obvious deformations made without departing from the concept of the utility model, and with the same performance or use, should be deemed to belong to the patent protection scope of the utility model determined by the submitted claims.

Claims

1. A blood pressure monitor cuff, comprising a cuff body and an air bag arranged in the cuff body, characterized in that: The cuff body is provided with an air pressure signal detection module, and the air pressure signal detection module includes an air pressure sensor; the airbag is provided with a first airbag interface and a second airbag interface connected to the interior of the airbag; the probe of the air pressure sensor passes through the cuff body and is sealed in the first airbag interface, and the probe of the air pressure sensor extends into the interior of the airbag through the first airbag interface; the second airbag interface is connected to an air duct, and the end of the air duct away from the second airbag interface is located outside the cuff body.

2. The blood pressure cuff according to claim 1, characterized in that: The cuff body comprises a winding portion and a fixing portion, wherein an opening is provided on one side of the winding portion, and the fixing portion is arranged at the opening and is sealedly connected to the opening; and the air pressure sensor is arranged on the outer side of the fixing portion.

3. The blood pressure cuff according to claim 2, characterized in that: The fixing part is provided with a first through hole corresponding to the first airbag interface; the outer side surface of the fixing part is fixedly covered with a mounting box, and the air pressure sensor is arranged in the mounting box and corresponds to the first through hole.

4. The blood pressure cuff according to claim 3, characterized in that: The first airbag interface is connected with a sealing sleeve, and one end of the sealing sleeve away from the first airbag interface passes through the first through hole and airtightly surrounds the probe of the air pressure sensor.

5. The blood pressure cuff according to claim 4, characterized in that: The sealing sleeve is a silicone sleeve.

6. The blood pressure cuff according to claim 1, characterized in that: The air pressure signal detection module also includes a circuit board arranged in the installation box, the circuit board is electrically connected to the air pressure sensor, and the circuit board is also electrically connected to a data transmission line.

7. The blood pressure cuff according to claim 6, characterized in that: The data transmission line is arranged in the air duct; one end of the data transmission line passes through the air duct and is connected to the circuit board, and the other end of the data transmission line passes through the end of the air duct away from the second airbag interface.

8. The blood pressure cuff according to claim 7, characterized in that: A second through hole for one end of the data transmission line to pass through is provided on a side wall of one end of the air guide tube close to the second airbag interface, and the second through hole is sealedly connected to the data transmission line.

9. The blood pressure cuff according to claim 8, characterized in that: The second through hole is sealed and connected to the data transmission line by glue.

10. An electronic blood pressure monitor, characterized in that: Comprising a sphygmomanometer cuff according to any one of claims 1-9.

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