Sphygmomanometer for measuring blood pressure by using upper air measuring method

Abstract

The invention relates to a sphygmomanometer for measuring blood pressure by using an upper air measurement method. The sphygmomanometer comprises a cuff, an air pressure detection module arranged on the outer side of the cuff, an air bag arranged in the cuff and a mounting plate arranged in the air bag, an air inlet pipe, an air outlet pipe and a wiring pipe which penetrate through the two sides of the mounting plate are arranged on the mounting plate, the air outlet pipe is communicated with the air inlet end of the pressure detection module, the wiring pipe penetrates through the cuff and extends into the air pressure detection module, the air inlet pipe extends out of the air bag, and the air pressure detection module is fixed to the cuff through the wiring pipe and the air outlet pipe; when the sphygmomanometer works, air enters the air bag from the air inlet, enters the air outlet pipe after being buffered by a section of air bag and reaches the detection end of the air pressure monitoring module, the sphygmomanometer can effectively reduce interference of an air pump to the detection end of the pressure monitoring module, the accuracy rate of a detection result is improved, the structure is simple, and cost control of an enterprise is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a sphygmomanometer for measuring blood pressure using a pneumatic measurement method. Background Art

[0002] The oscillometric method, also known as the oscillation method, is a common method of detecting blood pressure by using a cuff to pressurize the arterial blood vessels and using the pulse wave of the superposition of the static pressure in the cuff and the arterial pressure to determine the systolic pressure, mean pressure and diastolic pressure. Based on the oscillometric method, sphygmomanometers are divided into two categories: inflation phase measurement and deflation phase measurement, which use upper air measurement technology and lower air measurement technology respectively. Measuring blood pressure during the deflation phase has long been the mainstream technical solution of the oscillometric method. The main reason is that when measuring blood pressure during the inflation phase, the pulse wave is easily covered by the noise and vibration emitted by the air pump, resulting in the pulse wave being unrecognizable. However, because the time required for the upper air measurement technology is shorter than that required for the lower air measurement technology, and the maximum value of the upper air measurement technology is also lower than that of the upper air measurement technology, the sphygmomanometer using the upper air measurement technology is more economical and applicable, and can greatly save the time of measuring blood pressure, and has better clinical application prospects.

[0003] In order to overcome the interference of air pump vibration and noise on pulse wave signal, there are two traditional solutions: 1. Add a high-order low-pass filter to filter out air pump interference, such as the inflatable blood pressure measuring device disclosed in patent number CN202020507312.2; including a pressure cuff, a pressurized air pump, a pressure sensor and a filter element connected to the delivery pipeline unit and the air pipeline; the inflatable blood pressure measuring device eliminates the interference caused to the pulse wave by the filter element, so that the pressure sensor can convert a better pulse signal quality; 2. Design a complex air pump and add an air circuit control unit, such as patent number CN2022 21957888.4 discloses an air pump theme, an air pump and a sphygmomanometer; the air pump body includes an upper cover body, a control air bag, and an air flow channel is opened on the upper cover body for the gas drawn into the control air bag to pass through the buffer air chamber and then be sent out from the inflation port, and the upper cover body is also equipped with a valve to open or close the air flow channel; the air pump ensures small fluctuations and stable air flow inside the air pump without increasing the volume, thereby reducing the interference of the air pump on the pulse signal during blood pressure measurement; in order to reduce the interference of the air pump on the pulse wave, the above technical solution has a very complicated structural design of the air pump or the sphygmomanometer, which is not conducive to the cost control of the enterprise and has low practicality. Summary of the invention

[0004] The purpose of the present invention is to provide a sphygmomanometer for measuring blood pressure using the upper air measurement method in view of the deficiencies in the prior art, and the sphygmomanometer for measuring blood pressure using the upper air measurement method can well solve the above-mentioned problems.

[0005] In order to achieve the above requirements, the technical solution adopted by the present invention to solve its technical problems is:

[0006] Provided is a sphygmomanometer for measuring blood pressure using a breathing measurement method, comprising a cuff, an air pressure detection module arranged on the outside of the cuff, an air bag arranged in the cuff, and a mounting plate arranged in the air bag; the mounting plate is provided with an air inlet pipe, an air outlet pipe and a wiring pipe all passing through both sides thereof, the air outlet pipe is connected with the air inlet end of the air pressure detection module, the wiring pipe passes through the cuff and extends into the air pressure detection module, the air inlet pipe extends out of the air bag, and the air pressure detection module is fixed to the cuff via the wiring pipe and the air outlet pipe.

[0007] The sphygmomanometer of the present invention uses the upper air measurement method to measure blood pressure, wherein the upper surface of the mounting plate is arranged on a side wall of the air bag close to the air pressure detection module, and the lower surface of the air pressure detection module is respectively provided with through holes for inserting the air outlet pipe and the wiring pipe. When the assembly is completed, the mounting plate and the air pressure detection module clamp the cuff.

[0008] The sphygmomanometer of the present invention measures blood pressure using the upper air measurement method, wherein the air outlet pipe, the wiring pipe and the air inlet pipe are arranged on the upper surface of the mounting plate from right to left in sequence, and the air outlet pipe is arranged at one end of the wiring pipe away from the air inlet pipe.

[0009] The sphygmomanometer of the present invention uses the upper air measurement method to measure blood pressure, wherein the air pressure detection module includes a hollow shell and a control board arranged in the shell; the control board is integrated with an air pressure detection unit, and the air inlet of the air pressure detection unit is connected to the air outlet pipe.

[0010] The sphygmomanometer for measuring blood pressure using the upper air measurement method of the present invention has the connection line of the air pressure detection unit passing through the wiring tube and the inner cavity of the air bag in sequence.

[0011] The sphygmomanometer for measuring blood pressure using the upper air measurement method of the present invention has a connection line of the air pressure detection unit passing through the wiring tube, the inner cavity of the air bag and the air inlet pipe in sequence.

[0012] The sphygmomanometer for measuring blood pressure using the upper air measurement method of the present invention has a sealing member provided at the gap between the wiring tube and the connecting wire.

[0013] The sphygmomanometer of the present invention uses the upper air measurement method to measure blood pressure, wherein the sphygmomanometer uses the upper air measurement method to measure blood pressure also includes a main unit electrically connected to the air pressure detection module, an air pump arranged inside the main unit, and a connecting pipe connecting the air pump and the air inlet pipe.

[0014] The beneficial effects of the present invention are as follows: when working, the gas enters the airbag through the air inlet pipe, and a gas buffer space is formed inside the airbag, which plays a role in slowing down the gas flow rate, and can effectively consume and reduce the vibration and noise caused by the gas being affected by the outside world. At this time, when the gas passes through the air outlet and is detected by the air pressure detection module, the vibration and noise caused by the outside world in the gas basically disappear, and a clean pulse wave can be obtained at the air outlet end, so that the air pressure generated by the air pressure detection module can accurately indicate the patient's blood pressure, effectively improving the defects of the existing technology when using the upper air measurement technology, so that the upper air measurement technology can better play its advantage of short measurement time and promote the development of clinical medicine.

[0015] In the present invention, the air inlet pipe, the air outlet pipe and the wiring pipe are all installed on the mounting plate, the air pressure monitoring module is fixed on the cuff through the air inlet pipe and the air outlet pipe, the mounting plate and the air pressure detection module respectively position the cuff from both sides of the cuff, and play the role of clamping the cuff, which can not only effectively install the air pressure detection module, the air inlet pipe, the wiring pipe and the air outlet pipe, but also significantly reduce the measurement error, improve the measurement accuracy of physiological parameters such as blood pressure, and have good practicality; and this structure is simple in structure, which can reduce the manufacturing cost while ensuring the accuracy of blood pressure detection, is beneficial to the cost control of the enterprise, and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work:

[0017] Figure 1 It is a stereoscopic diagram of a sphygmomanometer for measuring blood pressure using the upper air measurement method of the present invention.

[0018] Figure 2 It is a longitudinal cross-sectional view of an air pressure detection module in a sphygmomanometer for measuring blood pressure using an upper air pressure measurement method according to the present invention.

[0019] Figure 3 It is a longitudinal cross-sectional view of the main unit in the sphygmomanometer for measuring blood pressure using the upper air measurement method of the present invention.

[0020] In the figure: 1. cuff; 10. air bag; 11. mounting plate; 12. air inlet pipe; 13. air outlet pipe; 14. wiring tube; 2. air pressure detection module; 20. through hole; 21. shell; 22. control board; 23. air pressure detection unit; 3. host; 30. air pump; 31. bottom shell; 32. top shell; 33. circuit board; 34. keycap; 35. button; 36. LED screen; 37. connector; 4. connecting pipe; 40. groove; 5. connector. DETAILED DESCRIPTION

[0021] The terms "first", "second", "third" and "fourth" etc. in the specification and claims of the present invention 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.

[0022] 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 places 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.

[0023] "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.

[0024] Moreover, the terms "up, down, left, right, upper end, lower end, longitudinal" and the like indicating directions are all based on the posture and position of the device or equipment described in this solution during normal use.

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be described clearly and completely in combination with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are partial embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0026] The sphygmomanometer for measuring blood pressure using the upper air measurement method of the preferred embodiment of the present invention is as follows: Figure 1-Figure 3As shown, it includes a cuff 1, an air pressure detection module 2 arranged on the outside of the cuff 1, an air bag 10 arranged in the cuff 1, and a mounting plate 11 arranged in the air bag 10; the cuff is rectangular and is preferably made of soft materials such as nylon, polyurethane and cotton yarn, and a bending line that is easy to bend is provided on the surface of the cuff along its width direction, so that the cuff fits the user's upper arm better during use; the mounting plate 11 is provided with an air inlet pipe 12, an air outlet pipe 13 and a wiring pipe 14 that all pass through both sides thereof, the air outlet pipe 13 is connected to the air inlet end of the air pressure detection module 2, the wiring pipe 14 passes through the cuff 1 and extends into the air pressure detection module 2, the air inlet pipe 12 extends out of the air bag 10, and the air pressure detection module 2 is fixed to the cuff 1 through the wiring pipe 14 and the air outlet pipe 13.

[0027] During operation, the gas enters the airbag 10 through the air inlet pipe 12, and a gas buffer space is formed inside the airbag 10, which slows down the gas flow rate and can effectively consume and reduce the vibration and noise caused by the gas being affected by the outside world. At this time, when the gas passes through the air outlet pipe 13 and is detected by the air pressure detection module 2, the vibration and noise caused by the outside world in the gas basically disappear, and a clean pulse wave can be obtained at the air outlet end, so that the air pressure generated by the air pressure detection module 2 can accurately indicate the patient's blood pressure, effectively improving the defects of the existing technology when using the upper air measurement technology, so that the upper air measurement technology can better play its advantage of short measurement time and promote the development of clinical medicine.

[0028] In the present invention, the air inlet pipe 12, the air outlet pipe 13 and the wiring pipe 14 are all installed on the mounting plate 11, and the air pressure monitoring module is fixed on the cuff 1 through the air inlet pipe 12 and the air outlet pipe 13. The mounting plate 11 and the air pressure detection module 2 respectively position the cuff 1 from both sides of the cuff 1, and play the role of clamping the cuff 1. Not only can the air pressure detection module 2, the air inlet pipe 12, the wiring pipe 14 and the air outlet pipe 13 be effectively installed, the measurement error can be significantly reduced, and the measurement accuracy of physiological parameters such as blood pressure can be improved, and the measurement has good practicality. In addition, this structure is simple in structure, and while ensuring the accuracy of blood pressure detection, it also reduces the manufacturing cost, which is beneficial to the cost control of the enterprise and has good practicality.

[0029] In this embodiment, the upper surface of the mounting plate 11 is arranged on a side wall of the airbag 10 close to the air pressure detection module 2, and the lower surface of the air pressure detection module 2 is respectively provided with through holes 20 for inserting the air outlet pipe 13 and the wiring tube 14. When the assembly is completed, the air outlet pipe 13 and the wiring tube 14 are inserted into the through holes 20 and fixedly connected to the air pressure detection module 2, and the mounting plate 11 and the air pressure detection module 2 clamp the cuff 1. This integrated design helps to simplify the overall structure of the sphygmomanometer, reduces the number and complexity of parts, makes the sphygmomanometer more compact, lightweight, easy to carry and operate, and is beneficial for enterprises to control costs.

[0030] In this embodiment, the air outlet pipe 13, the wiring pipe 14 and the air inlet pipe 12 are arranged on the upper surface of the mounting plate 11 from right to left in sequence, and the air outlet pipe 13 is arranged at the end of the wiring pipe 14 away from the air inlet pipe 12; the air outlet pipe 13 is arranged at the end farther away from the air inlet pipe 12, which can effectively increase the buffering distance and duration of the gas, so that the air pressure detected by the air inlet of the air pressure detection module 2 is less affected by other external factors, thereby ensuring the accuracy of blood pressure detection.

[0031] In this embodiment, the air pressure detection module 2 includes a hollow shell 21 and a control board 22 arranged in the shell 21; an air pressure detection unit 23 is integrated on the control board 22, and the air inlet of the air pressure detection unit 23 is connected to the air outlet pipe 13; the air inlet of the air pressure detection unit 23 is in the shape of a raised long strip, and the air pressure detection unit 23 is inserted in the air outlet pipe 13 and acts as a seal; a clean pulse wave can be obtained.

[0032] In this embodiment, the connecting wire of the air pressure detection unit 23 passes through the wiring tube 14, the inner cavity of the airbag 10 and the air inlet pipe 12 in sequence and is electrically connected to the air pressure detection module 2, which can reduce the number of external wires and make the internal structure of the sphygmomanometer simpler. The connection method between the connecting wire and the connecting tube 4 can also be set so that the connecting wire is arranged outside the connecting tube 4. At this time, the connecting wire passes through the wiring tube 14 and the inner cavity of the airbag 10 in sequence and is electrically connected to the air pressure detection module 2.

[0033] In this embodiment, a sealing member is provided in the gap between the wiring tube 14 and the connecting wire. In the present invention, glue is preferably used as the sealing member, which can form a firm and sealed isolation layer, effectively preventing the penetration and interference of dust, water vapor and the like, ensuring the stability of the air pressure inside the air pressure detection unit 23, and extending the service life of the air pressure detection unit 23.

[0034] In this embodiment, the sphygmomanometer for measuring blood pressure using the upper air measurement method also includes a main unit 3 electrically connected to the air pressure detection module 2, an air pump 30 arranged inside the main unit 3, and a connecting pipe 4 connecting the air pump 30 and the air inlet pipe 12; the two ends of the connecting pipe 4 are respectively connected to the air inlet pipe 12 and the air outlet of the air pump 30, and the connecting pipe 4 is clamped on the air inlet pipe 12 through a groove 40 coaxial with the outer edge of the pipe mouth, and the side wall of the groove 40 is tightly against the inner wall of the air inlet pipe 12. This structure can effectively ensure the sealing between the connecting pipe 4 and the air inlet pipe 12, thereby improving the working efficiency of the air pump 30.

[0035] In this embodiment, a connector 5 is provided at one end of the connecting tube 4 away from the cuff 1, and a cannula directly connected to the connecting tube 4 is integrally formed on the connecting head 5. A connecting seat 37 for inserting the cannula is provided in the main unit 3, and the connecting tube 4 is connected to the air outlet of the air pump 30 through the connector 5 and the connecting seat 37; the main unit 3 and the connecting tube 4 are detachably connected through the connector 5, and can be disassembled for storage after use, which increases the flexibility of use and storage.

[0036] In this embodiment, the host 3 includes a bottom shell 31 and a surface shell 32 covering the upper surface of the bottom shell 31; a plurality of keycaps 34 are arranged on the surface shell 32, and a circuit board 33 is arranged in the bottom shell 31. A plurality of buttons 35 corresponding to the keycaps 34 are arranged on the surface of the circuit board 33 facing the keycaps 34; the buttons 35 are arranged from left to right: a pulse detection button for pulse measurement; a user switching button, when different testers use the present invention, the corresponding measurement results can be stored in the memory value of the corresponding user, which is suitable for multiple users; a setting button, which can set the time, voice broadcast, switching of measurement units, etc., which is suitable for a variety of use occasions; a memory button, which can enter the memory value viewing mode, view the recent measurement results of the current user, and more intuitively observe the blood pressure fluctuation of the user within a period of time, which has a good effect on identifying potential blood pressure risks and observing the health of the user; an on / off button, which is used to start and end blood pressure measurement, or exit to the standby mode with one key when in the memory mode or setting mode; this embodiment can conveniently and quickly provide different functions for different users, and has strong practicality.

[0037] In this embodiment, an LED screen 36 for receiving and displaying blood pressure data is also provided on the face shell 32, which intuitively presents the results of blood pressure measurement, including key information such as systolic pressure (high pressure), diastolic pressure (low pressure) and pulse value, so that users can quickly understand their blood pressure status.

[0038] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A sphygmomanometer for measuring blood pressure using a breathing method, characterized in that: It includes a cuff, an air pressure detection module arranged on the outside of the cuff, an air bag arranged in the cuff, and a mounting plate arranged in the air bag; the mounting plate is provided with an air inlet pipe, an air outlet pipe and a wiring pipe which all pass through both sides thereof, the air outlet pipe is connected with the air inlet end of the air pressure detection module, the wiring pipe passes through the cuff and extends into the air pressure detection module, the air inlet pipe extends out of the air bag, and the air pressure detection module is fixed to the cuff through the wiring pipe and the air outlet pipe.

2. The sphygmomanometer for measuring blood pressure using the upper airway measurement method according to claim 1, characterized in that: The upper surface of the mounting plate is arranged on a side wall of the airbag close to the air pressure detection module, and the lower surface of the air pressure detection module is respectively provided with through holes for inserting the air outlet pipe and the wiring pipe. When assembly is completed, the mounting plate and the air pressure detection module clamp the cuff.

3. The sphygmomanometer for measuring blood pressure using the upper airway measurement method according to claim 1, characterized in that: The air outlet pipe, the wiring pipe and the air inlet pipe are arranged on the upper surface of the mounting plate from right to left in sequence, and the air outlet pipe is arranged at one end of the wiring pipe away from the air inlet pipe.

4. The sphygmomanometer for measuring blood pressure using the upper airway measurement method according to claim 3, characterized in that: The air pressure detection module includes a hollow shell and a control board arranged in the shell; an air pressure detection unit is integrated on the control board, and the air inlet of the air pressure detection unit is connected to the air outlet pipe.

5. The sphygmomanometer for measuring blood pressure using the upper airway measurement method according to claim 4, characterized in that: The connecting line of the air pressure detection unit passes through the wiring tube and the inner cavity of the airbag in sequence.

6. The sphygmomanometer for measuring blood pressure using the pneumometry method according to claim 5, characterized in that: The connecting line of the air pressure detection unit passes through the wiring tube, the inner cavity of the airbag and the air inlet pipe in sequence.

7. The sphygmomanometer for measuring blood pressure using the upper airway measurement method according to claim 5 or 6, characterized in that: A sealing piece is provided in the gap between the wiring tube and the connecting wire.

8. The sphygmomanometer for measuring blood pressure using the pneumometry method according to claim 1, characterized in that: The sphygmomanometer for measuring blood pressure using the upper air measurement method also includes a host electrically connected to the air pressure detection module, an air pump arranged inside the host, and a connecting pipe connecting the air pump and the air inlet pipe.

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