Replaceable exhaust pipe fitting, sphygmomanometer provided with exhaust pipe fitting and exhaust method of sphygmomanometer
By designing a replaceable exhaust pipe, the problem of existing blood pressure monitors being unable to adapt to different arm circumferences was solved, achieving the effects of reduced cost, smaller size, and improved measurement accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-24
- Publication Date
- 2026-04-03
AI Technical Summary
The slow pressure relief valve of existing blood pressure monitors is installed inside the body and is not easy to replace. This makes it unable to adapt to different arm circumferences, resulting in differences in measurement time and blood pressure measurement errors, and also increases production costs and equipment size.
Design a replaceable exhaust pipe fitting that replaces the slow pressure relief valve with an air hole. Select an appropriate air hole diameter according to the preset size of the air bag unit to connect the air bag unit and the replaceable exhaust pipe fitting for the pressurization and depressurization process of the blood pressure monitor.
It has achieved reduced production costs and smaller device size for blood pressure monitors, while maintaining the accuracy and portability of blood pressure measurement, and adapting to different arm circumferences.
Smart Images

Figure CN121774473A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a replaceable exhaust pipe for a blood pressure monitor, and more specifically to a blood pressure monitor with a replaceable exhaust pipe and a method for exhausting the blood pressure. Background Technology
[0002] Among common modern diseases, hypertension is a highly prevalent chronic illness. Control of hypertension remains unsatisfactory, and it continues to rank among the top ten causes of death. To prevent and treat cardiovascular diseases, blood pressure measurement is becoming increasingly important in clinical and home healthcare. Therefore, blood pressure measurement devices that can quickly and accurately measure blood pressure are currently in high demand.
[0003] Figure 1 This diagram shows a block diagram of a conventional blood pressure monitor with a slow-release valve, and also shows the internal connectivity. The conventional blood pressure monitor 10 includes a main body 11, an air bag unit 30, and an air tube 6 connecting the air bag unit 30 and the main body 11. The main body 11 forms a receiving space with a communicating air hole, which is connected to the air tube 6. The receiving space houses a pump unit 3, a fast-release valve 4, a slow-release valve 5, and a control circuit (not shown) with a pressure sensor. The pump unit 3, the fast-release valve 4, and the slow-release valve 5 are interconnected to the communicating air hole via connecting pipes 1 and 2, and then connected to the air bag unit 30 via the air tube 6. During blood pressure measurement, the air bag unit 30 is placed over a user's arm. The pump unit 3 of the existing blood pressure monitor 10 rapidly pressurizes the air bag unit 30 until the pressure reaches a preset value. Then, the slow pressure relief valve 5 of the existing blood pressure monitor 10 begins to slowly release air, at which point the existing blood pressure monitor 10 begins to measure the pulse wave signal. After the blood pressure measurement is completed, the fast pressure relief valve 4 of the existing blood pressure monitor 10 activates to release all remaining gas.
[0004] However, since users' arm circumferences can vary from person to person—for example, the elderly versus young people, adults versus children, men versus women, or even the arms of someone who plays badminton or tennis—the amount of gas injected during the pressurization phase of existing blood pressure monitors will differ depending on the user's arm size and the size of the cuff used. Because the slow-release valve 5 in existing blood pressure monitors is installed inside the main body 11, it is not easily replaceable. Therefore, during pulse wave signal measurement after the pressurization phase, if existing blood pressure monitors only release gas through the same specification slow-release valve 5, the gas release rate may vary, or even be too slow, leading to differences in measurement time and potential errors in blood pressure measurement for different users.
[0005] Taiwan Utility Model Patent No. M469879 discloses a blood pressure measuring device applicable to cuffs of different sizes. This device features an internal connecting structure with two slow-release valves, connected either air-to-each or not air-to-each. Cuff connectors with different connecting structures further connect the two types of slow-release valves within the device, allowing it to be used with cuffs of different sizes. However, this prior art, with its internal connecting structure containing two slow-release valves, not only increases the size of the device but also makes it impossible to replace the slow-release valves. To accommodate different cuff sizes, the device requires additional internal components and cuff connectors with different connecting structures, further increasing production costs.
[0006] Therefore, if the present invention can provide a blood pressure monitor and its venting method that are suitable for replaceable venting pipes, so that the internal communication structure of the blood pressure monitor body does not need to be equipped with a slow pressure relief valve, and the venting pipes can be replaced according to different sizes of cuffs, the production cost of the blood pressure monitor can be reduced, and the size of the blood pressure monitor can be reduced to make it easier to carry, which will have industrial practicality. Summary of the Invention
[0007] The purpose of this invention is to provide a replaceable exhaust pipe fitting, which can be used with air bag units of different sizes, so that the internal communication structure of the blood pressure monitor body does not need to be equipped with a slow pressure relief valve.
[0008] Another object of the present invention is to provide a blood pressure monitor with a replaceable venting fitting and a venting method thereof, so as to use different sized cuffs to accommodate differences in the user's arm circumference and maintain the accuracy of blood pressure measurement.
[0009] To achieve the above-mentioned objective, the present invention provides a replaceable exhaust pipe for connecting an air bag unit, comprising: a body having a gas passage; a first pipe extending from the body; and a second pipe extending from the body, wherein the first pipe and the second pipe are connected to each other through the gas passage, and the second pipe forms at least one vent, such that during pressurization of the air bag unit through the gas passage, the vent functions as a slow pressure relief vent.
[0010] To achieve the aforementioned objective, the present invention further provides a blood pressure monitor comprising: a main body having a communicating vent and a receiving space, the receiving space accommodating a pump unit and a quick-release valve, wherein the communicating vent connects the pump unit and the quick-release valve; a replaceable exhaust pipe detachably mounted to the communicating vent of the main body, wherein the replaceable exhaust pipe has a gas passage communicating with the communicating vent; and an air bag unit communicating with the gas passage of the replaceable exhaust pipe; wherein the gas passage of the replaceable exhaust pipe forms at least one vent, such that during pressurization of the air bag unit by the pump unit, the vent functions as a slow-release vent.
[0011] To achieve the aforementioned objective, the present invention further provides a method for venting a blood pressure monitor, comprising: providing an air bag unit having a preset size; connecting the air bag unit with a replaceable vent pipe corresponding to the preset size of the air bag unit, wherein the diameter of an air hole in the replaceable vent pipe corresponds to the preset size of the air bag unit; and installing the replaceable vent pipe in a connecting air hole of the blood pressure monitor so that the air bag unit is pressurized, wherein the air hole functions as a slow-release vent.
[0012] According to the blood pressure monitor and its venting method implemented in this invention, the replaceable venting pipe is matched with different sizes of the air bag unit, so that the internal communication structure of the blood pressure monitor body does not need to be equipped with a slow pressure relief valve, thereby reducing the production cost of the blood pressure monitor of this invention and making the blood pressure monitor smaller and easier to carry. Attached Figure Description
[0013] Figure 1 This is a block diagram of an existing blood pressure monitor equipped with a slow-release valve.
[0014] Figure 2 This is a block diagram of the blood pressure monitor of the present invention with a replaceable exhaust pipe.
[0015] Figure 3A This is a side view of the replaceable exhaust pipe component of the first embodiment of the present invention.
[0016] Figure 3B This is a front view of the replaceable exhaust pipe component according to the first embodiment of the present invention.
[0017] Figure 4 This is a perspective view of the replaceable exhaust pipe component according to the second embodiment of the present invention.
[0018] Symbol explanation:
[0019] 1, 2 connecting pipe fittings
[0020] 3 pump units
[0021] 4. Quick pressure relief valve
[0022] 5. Slow-speed pressure relief valve
[0023] 6. Trachea
[0024] 10. Existing blood pressure monitors
[0025] 11. This body
[0026] 20 Blood Pressure Monitor
[0027] 21 This body
[0028] 22' Exhaust pipe fittings
[0029] 23 Stomata
[0030] 24. Trachea
[0031] 30 airbag units
[0032] 220 Ontology
[0033] 221 First Pipeline
[0034] 222 Second Pipeline
[0035] 2201 Clamping Arm
[0036] 2202 Clamping Arm Detailed Implementation
[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0038] The present invention will now be described in further detail with reference to the accompanying drawings:
[0039] First refer to Figure 2The diagram shows a block illustration of a blood pressure monitor of the present invention with a replaceable exhaust pipe. In one embodiment of the present invention, a blood pressure monitor 20 includes: a main body 21, an air bag unit 30, and an air tube 24 connecting the air bag unit 30 and the main body 21, wherein the air bag unit 30 has a preset size. The main body 21 forms a receiving space with a communicating air hole, to which the air tube 24 can be installed and connected. The receiving space houses a pump unit 3, a quick-release valve 4, and a control circuit (not shown) with a pressure sensor, but does not include a slow-release valve. The pump unit 3 and the quick-release valve 4 are connected to each other to the communicating air hole via a connecting pipe 1, and then connected to the air bag unit 30 via the air tube 24.
[0040] Continue to refer to Figure 2 The blood pressure monitor 20 of the present invention is equipped with a replaceable exhaust pipe 22, which has a gas passage. One end of the gas passage is connected to the air pipe 24, and when the replaceable exhaust pipe 22 is installed in the connecting air port of the main body 21, the other end of the gas passage is connected to the internal connecting pipe 1, so that the air pipe 24 is connected to the pump unit 3 and the quick pressure relief valve 4 via the installation of the replaceable exhaust pipe 22. The replaceable exhaust pipe 22 of the present invention is provided with at least one air hole 23, through which the gas passage is connected to the outside. The diameter of the air hole 23 corresponds to the preset size of the air bag unit 30. In different embodiments of the present invention, the preset size of the air bag unit 30 is XL or L, wherein the preset size of XL or L is 31.8cm*15.7cm, and the air hole diameter of the replaceable exhaust pipe 22 matched with the air bag unit 30 is 0.21mm; the preset size of the air bag unit 30 is M or U, wherein the preset size of M or U is 23cm*12.5cm, and the air hole diameter of the replaceable exhaust pipe 22 matched with the air bag unit 30 is 0.15mm; the preset size of the air bag unit 30 is XS, wherein the preset size of XS is 14.8cm*12cm, and the air hole diameter of the replaceable exhaust pipe 22 matched with the air bag unit 30 is 0.13mm.
[0041] Before blood pressure measurement, the air bag unit 30 is selected according to the user's arm circumference and a replaceable vent pipe 22 with a corresponding vent diameter is used to connect the air bag unit 30 to the blood pressure monitor 20 of the present invention. During blood pressure measurement, the air bag unit 30 covers the user's arm, and the pump unit 3 of the blood pressure monitor 20 rapidly pressurizes the air bag unit 30 until the pressure reaches a preset value, after which pressurization stops. The vent 23 of the replaceable vent pipe 22 acts as a slow-release vent. At this time, the blood pressure monitor 20 begins to measure the pulse wave signal. After the blood pressure measurement is completed, the rapid pressure relief valve 4 of the blood pressure monitor 20 actuates to release all remaining gas. Therefore, although the main body 21 of the blood pressure monitor 20 of the present invention is not equipped with a slow pressure relief valve, the air hole 23 of the replaceable exhaust pipe 22 can act as a slow pressure relief hole during the blood pressure measurement of the blood pressure monitor 20, so that the replaceable exhaust pipe 22 can replace the slow pressure relief valve.
[0042] Please also refer to Figure 3A and Figure 3B The images show a side view and a front view of a replaceable exhaust pipe fitting according to a first embodiment of the present invention. In the first embodiment of the present invention, a replaceable exhaust pipe fitting 22 is used to connect an air bag unit 30, and the air bag unit 30 has a preset size. The replaceable exhaust pipe fitting 22 includes a body 220 having a gas passage, the body 220 extending a first pipe 221 and a second pipe 222, and the first pipe 221 and the second pipe 222 are connected to each other through the gas passage. The first pipe 221 is used to insert into a communication air hole of the blood pressure monitor 20 of the present invention, so that the gas passage is connected to the internal communication structure of the body 21. The second pipe 222 is connected to an air tube 24 of the air bag unit 30, so that the gas passage is connected to the air bag unit 30. The replaceable exhaust pipe fitting 22 of the present invention has at least one air hole 23, the air hole 23 having a diameter corresponding to the preset size of the air bag unit 30. Taking the preset size M or U as an example, the diameter of the pore 23 is 0.15mm.
[0043] In different embodiments of the present invention, the vent 23 may be provided on the body 220 of the replaceable exhaust pipe 22, or on the first pipe 221 or the second pipe 222. Figure 3A and Figure 3B The vent 23 shown is located on the body 220. Preferably, the vent 23 is positioned to avoid being blocked by other structural walls or objects after installation. Furthermore, the first pipe 221 and the second pipe 222 of the replaceable exhaust pipe 22 of the present invention extend from the body 220 in different directions, making the gas passage form an L-shape or a straight-through type.
[0044] Please refer to Figure 4This image shows a perspective view of a replaceable exhaust pipe fitting 22' according to a second embodiment of the present invention. In the second embodiment of the present invention, a replaceable exhaust pipe fitting 22' is used to connect an air bag unit 30, and the air bag unit 30 has a preset size. The replaceable exhaust pipe fitting 22' of the present invention has a body 220, a first pipe 221, and a second pipe 222, and the first pipe 221 and the second pipe 222 are connected to each other through a gas passage of the body 220, and the air hole 23 is located on the side wall of the second pipe 222. Furthermore, the body 220 of the replaceable exhaust pipe fitting 22' of the present invention further forms a pair of holding arms 2201, 2202, which are preferably located on opposite sides of the first pipe 221. The pair of holding arms 2201, 2202 can be fastened to the edge of the communicating air hole of the body 21 of the blood pressure monitor 20 of the present invention to keep the first pipe 221 located within the communicating air hole.
[0045] According to the first or second embodiment of the present invention, a method for venting a blood pressure monitor 20 includes the following steps: the blood pressure monitor 20 provides an air bag unit having a preset size; corresponding to the preset size of the air bag unit, the blood pressure monitor 20 is equipped with a replaceable vent pipe connected to the air bag unit, and the replaceable vent pipe has at least one air hole, and the diameter of the air hole corresponds to the preset size of the air bag unit; the replaceable vent pipe is installed in a connecting air hole of the body of the blood pressure monitor 20; and during the pressurization of the air bag unit by the blood pressure monitor 20, the air hole functions as a slow-release vent.
[0046] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.
Claims
1. A blood pressure monitor, characterized in that, Include: A machine body has a connecting vent and a receiving space, the receiving space accommodating a pump unit and a fast pressure relief valve, but not accommodating a slow pressure relief valve, and the connecting vent connects the pump unit and the fast pressure relief valve. A replaceable exhaust pipe is detachably mounted to the connecting vent of the machine body, and the detachable exhaust pipe has a gas passage communicating with the connecting vent. as well as An air bag unit is connected to the gas passage of the detachable exhaust pipe. The replaceable exhaust pipe has at least one vent in its gas passage, which acts as a slow pressure relief vent during the pressurization of the air bag unit by the pump unit.
2. The blood pressure monitor as described in claim 1, characterized in that, The airbag unit has a preset size, and the airbag unit is equipped with the replaceable exhaust pipe so that the diameter of the air hole corresponds to the preset size of the airbag unit.
3. The blood pressure monitor as described in claim 2, characterized in that, The preset dimensions are 31.8cm*15.7cm, and the pore diameter is 0.21mm.
4. The blood pressure monitor as described in claim 2, characterized in that, The preset size is 23cm*12.5cm, and the pore diameter is 0.15mm.
5. The blood pressure monitor as described in claim 2, characterized in that, The preset dimensions are 14.8cm*12cm, and the pore diameter is 0.13mm.
6. A replaceable exhaust pipe fitting, characterized in that, For connecting a bag unit, including: A body having a gas passage; a first pipe extending from the body; and a second pipe extending from the body, wherein the first pipe and the second pipe are connected to each other via the gas passage, and the replaceable exhaust pipe has at least one vent so that the vent functions as a slow pressure relief vent during pressurization of the air bag unit via the gas passage.
7. The replaceable exhaust pipe fitting as described in claim 6, characterized in that, The airbag unit has a preset size, and the airbag unit is equipped with the replaceable exhaust pipe so that the diameter of the air hole corresponds to the preset size of the airbag unit.
8. The replaceable exhaust pipe fitting as described in claim 6, characterized in that, The vent is provided on the body, the first pipe, or the second pipe so that the gas passage is connected to the outside through the vent.
9. The replaceable exhaust pipe fitting as described in claim 8, characterized in that, The body forms a pair of holding arms that hold the connecting vent to keep the first pipe inside the connecting vent.
10. A method for venting air from a blood pressure monitor as described in claim 1, characterized in that, Include: Provide the airbag unit with a preset size; The air bag unit is connected to the air bag unit by a replaceable exhaust pipe, and the diameter of the air hole of the replaceable exhaust pipe is corresponding to the preset size of the air bag unit. The replaceable exhaust pipe is installed in the connecting vent of the machine body; as well as During the pressurization of the air bag unit by the pump unit, the air vent acts as a slow-release vent.