Wrist sphygmomanometer and medical service robot

Abstract

The wrist type sphygmomanometer comprises a fixed platform, a movable arm and an air pressure bandage, a driver can drive arm clamps to rotate, the two arm clamps are opened, so that the wrist of the human body enters the position between the two arm clamps, the two arm clamps rotate to be closed after entering, an external air source inflates the air pressure bandage, and the air pressure bandage expands to make contact with the wrist of the human body. When the pressure of air input into the inner cavity of the air pressure bandage is high enough to prevent blood in the artery from flowing, a pressure sensor in the air pressure bandage records a pressure value at the moment, and the pressure value corresponds to the systolic pressure of the human body; the air in the air pressure bandage is released, in the air pressure releasing process, a pressure sensor in the air pressure bandage monitors that blood flow in the artery restarts, and when the monitored pressure drops to a specific level, the blood pressure corresponds to the diastolic pressure of the human body. Meanwhile, the utility model further provides a medical service robot, and the wrist sphygmomanometer is connected with a mechanical arm of the medical service robot.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a wrist blood pressure monitor and a medical service robot. Background Art

[0002] Blood pressure (BP) refers to the lateral pressure exerted by blood on the walls of blood vessels per unit area as blood flows through them; it is the driving force propelling blood flow. Blood pressure is typically expressed as two values: systolic pressure and diastolic pressure. In medical terminology, systolic pressure represents the maximum pressure exerted by blood on the arterial walls when the heart contracts, while diastolic pressure represents the minimum pressure exerted by blood on the arterial walls when the heart relaxes. These two values ​​are usually measured in millimeters of mercury (mmHg).

[0003] Blood pressure readings can reflect a variety of information, including the health of the cardiovascular system, the stability of the circulatory system, and the overall blood flow. In recent years, research institutions and companies have developed new wrist blood pressure monitors, which function similarly to traditional cuff blood pressure monitors. These portable devices are typically worn on the wrist. They work by applying or releasing pressure to the measurement area through an inflatable and deflated wristband, thereby observing the flow of blood in the arteries.

[0004] However, existing products still require manual wearing and are bulky. While some wrist blood pressure monitors that can be integrated into wearable watches are compact, some users, especially the elderly, are reluctant to wear them for extended periods, reporting discomfort. Furthermore, current medical service robots cannot provide blood pressure measurement, a crucial health monitoring service. Therefore, there is currently a lack of a device on the market that can be mounted on the arm of a mobile medical service robot and automatically measure wrist blood pressure without the need for manual pneumatic straps. Utility Model Content

[0005] The purpose of this invention is to provide a wrist blood pressure monitor and a medical service robot to solve the problems existing in the prior art and improve the convenience of blood pressure measurement.

[0006] To achieve the above objectives, this utility model provides the following solution:

[0007] This utility model provides a wrist blood pressure monitor, comprising:

[0008] Fixed platform;

[0009] The movable arms are arranged in two sets, symmetrically about the center line of the fixed platform. Each movable arm includes a linkage assembly and an arm clamp. The linkage assembly is rotatably connected to the fixed platform, and the arm clamp is connected to the end of the linkage assembly away from the fixed platform. The linkage assembly can drive the arm clamp to rotate, so that the arm clamps of the two movable arms can close and open. A driver is provided on the fixed platform, and the driver is kinetically connected to the linkage assembly to drive the arm clamp to rotate.

[0010] The pneumatic strap has a hollow structure and is made of flexible material. Its inner cavity is connected to an external air source, which can inflate and deflate the inner cavity. A pressure sensor is installed within the inner cavity of the pneumatic strap. The pneumatic straps are positioned inside the arm clamp, with each strap corresponding to the other. The pneumatic straps are arc-shaped, allowing them to wrap around the wrist. A protrusion is present on the side of the pneumatic strap away from the arm clamp to ensure close contact with the wrist.

[0011] Preferably, the linkage assembly includes a first linkage and a second linkage. One end of the first linkage and one end of the second linkage are respectively hinged to the fixed platform, and the hinge point of the first linkage and the fixed platform does not coincide with the hinge point of the second linkage and the fixed platform. The other end of the first linkage and the other end of the second linkage are respectively hinged to the arm clamp, and the hinge point of the first linkage and the arm clamp does not coincide with the hinge point of the second linkage and the arm clamp. The hinge point of the arm clamp with the first linkage and the second linkage is located at the end away from the pneumatic strap. The fixed platform, the first linkage, the second linkage, and the arm clamp constitute a linkage mechanism.

[0012] Preferably, the end of the first connecting rod that is hinged to the fixed platform is connected to a transmission gear, the two transmission gears mesh with each other, and the output end of the driver is keyed to one of the transmission gears.

[0013] Preferably, the fixed platform includes an upper fixed plate, a connecting plate, and a lower fixed plate. The upper fixed plate is connected to the lower fixed plate via the connecting plate, forming an "I"-shaped structure. The first connecting rod and the second connecting rod extend between the upper fixed plate and the lower fixed plate and are fixed by a first pin. The upper fixed plate, the lower fixed plate, the first connecting rod, and the second connecting rod all have a first mounting hole adapted to the first pin. The first pin passes through the first mounting hole in sequence and is fixed by a nut.

[0014] Preferably, the arm clamp has a U-shaped mounting groove. After the first connecting rod and the second connecting rod are rotatably extended into the mounting groove, they are fixed by a second pin. The arm clamp, the first connecting rod, and the second connecting rod all have a second mounting hole that matches the second pin. The second pin passes through the second mounting hole in sequence and is fixed by a nut.

[0015] Preferably, the inner side of the pneumatic strap has a plurality of protrusions, the protrusions being columnar structures and arranged along the arc length direction of the pneumatic strap.

[0016] Preferably, the inner side of the pneumatic strap has a plurality of protrusions, the protrusions being hemispherical in shape, and the protrusions being evenly distributed on the side of the pneumatic strap away from the arm clamp.

[0017] Preferably, an air pump is provided on the fixed platform, and the air pump is connected to the inner cavity of the air pressure strap via a rubber tube.

[0018] Preferably, the pneumatic strap is detachably connected to the arm clamp;

[0019] The inner wall of the arm clamp connected to the pneumatic strap has protruding fixing ribs, and the pneumatic strap fits into the fixing ribs.

[0020] This utility model also provides a medical service robot, which includes the above-mentioned wrist blood pressure monitor, and the wrist blood pressure monitor is connected to the mechanical arm of the medical service robot.

[0021] This invention achieves the following technical advantages over existing technologies: The wrist blood pressure monitor of this invention includes a fixed platform, movable arms, and a pneumatic strap. There are two sets of movable arms, symmetrically arranged about the center line of the fixed platform. Each movable arm includes a linkage assembly and an arm clamp. The linkage assembly is rotatably connected to the fixed platform, and the arm clamp is connected to the end of the linkage assembly furthest from the fixed platform. The linkage assembly can drive the arm clamp to rotate, causing the arm clamps of the two movable arms to close and open. A driver is provided on the fixed platform to drive... The device is connected to the linkage assembly to drive the arm clamp to rotate; the pneumatic strap is a hollow structure made of flexible material, and its inner cavity is connected to an external air source, which can inflate and deflate the inner cavity of the pneumatic strap. A pressure sensor is installed in the inner cavity of the pneumatic strap; the pneumatic straps are located on the inside of the arm clamp and correspond one-to-one with each other. The pneumatic straps are arc-shaped and can wrap around the human wrist; the side of the pneumatic strap away from the arm clamp has a protrusion to ensure that the pneumatic strap can make close contact with the human wrist.

[0022] This invention relates to a wrist blood pressure monitor. The actuator rotates the arm clamps, opening them to allow the wrist to enter. Once inside, the clamps rotate and close, and an external air source inflates the pneumatic band, causing it to expand and contact the wrist. When the air pressure inside the band reaches a sufficiently high level to stop blood flow in the arteries, a pressure sensor records the pressure value, corresponding to the systolic blood pressure. As the air is released, the pressure sensor detects the resumption of blood flow in the arteries. When the detected pressure drops to a specific level, corresponding to the diastolic blood pressure, the measurement ends. The air is then removed from the band, and the actuator rotates the arm clamps to open them. When the arm clamps are open, the wrist is away from the monitor, corresponding to the wrist blood pressure monitor's standby state: the arm clamps are fully open, and the pneumatic band is in a normal contracted state with no air inside. This wrist blood pressure monitor is simple in structure, compact in size, and highly adaptable.

[0023] Meanwhile, this utility model also provides a medical service robot, in which a wrist blood pressure monitor is connected to the robotic arm of the medical service robot, filling the gap in the existing robots' inability to quickly and automatically detect human blood pressure. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the standby state of the wrist blood pressure monitor disclosed in the embodiments of this utility model;

[0026] Figure 2 This is a schematic diagram of the working state of the wrist clamp of the wrist blood pressure monitor disclosed in the embodiments of this utility model.

[0027] Figure 3 This is an exploded view of the wrist blood pressure monitor disclosed in the embodiments of this utility model;

[0028] Figure 4 This is a schematic diagram of the fixing platform of the wrist blood pressure monitor disclosed in the embodiments of this utility model;

[0029] Figure 5 This is a schematic diagram of the structure of the miniature air pump of the wrist blood pressure monitor disclosed in the embodiments of this utility model;

[0030] Figure 6This is a schematic diagram of the structure of the rubber tube of the wrist blood pressure monitor disclosed in the embodiment of this utility model;

[0031] Figure 7 This is a schematic diagram of the structure of a movable arm of a wrist blood pressure monitor disclosed in an embodiment of this utility model;

[0032] Figure 8 This is a schematic diagram of the structure of another movable arm of the wrist blood pressure monitor disclosed in this embodiment of the present invention;

[0033] Figure 9 This is a schematic diagram of the structure of the pneumatic strap of the wrist blood pressure monitor disclosed in the embodiments of this utility model;

[0034] Figure 10 This is a schematic diagram of the driver for a wrist blood pressure monitor disclosed in an embodiment of the present invention.

[0035] In the picture: 100 wrist blood pressure monitor;

[0036] 1. Fixed platform; 101. Upper fixed plate; 102. Connecting plate; 103. Lower fixed plate;

[0037] 2. Movable arm; 201. Linkage assembly; 202. Arm clamp; 203. First link; 204. Second link; 205. Transmission gear; 206. First pin; 207. First mounting hole; 208. Mounting groove; 209. Second pin; 210. Second mounting hole; 211. Fixing rib;

[0038] 3. Pneumatic straps; 301. Protrusion;

[0039] 4. Driver;

[0040] 5. Air pump. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] The purpose of this invention is to provide a wrist blood pressure monitor and a medical service robot to solve the problems existing in the prior art and improve the convenience of blood pressure measurement.

[0043] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0044] This utility model provides a wrist blood pressure monitor 100, including a fixed platform 1, movable arms 2, and a pneumatic strap 3. The movable arms 2 are arranged in two sets, symmetrically about the center line of the fixed platform 1. Each movable arm 2 includes a connecting rod assembly 201 and an arm clamp 202. The connecting rod assembly 201 is rotatably connected to the fixed platform 1, and the arm clamp 202 is connected to the end of the connecting rod assembly 201 away from the fixed platform 1. The connecting rod assembly 201 can drive the arm clamp 202 to rotate, causing the arm clamps 202 of the two movable arms 2 to close and open. A driver 4 is provided on the fixed platform 1. The pneumatic strap 3 is connected to the linkage assembly 201 to drive the arm clamp 202 to rotate; the pneumatic strap 3 is a hollow structure made of flexible material, and the inner cavity of the pneumatic strap 3 is connected to an external air source, which can inflate and deflate the inner cavity of the pneumatic strap 3. A pressure sensor is installed in the inner cavity of the pneumatic strap 3; the pneumatic strap 3 is located on the inner side of the arm clamp 202 and the two correspond one to one. The pneumatic strap 3 is arc-shaped and the two pneumatic straps 3 can wrap around the human wrist; the side of the pneumatic strap 3 away from the arm clamp 202 has a protrusion 301 so that the pneumatic strap 3 can make close contact with the human wrist.

[0045] The wrist blood pressure monitor 100 of this invention has a driver 4 that can rotate the arm clamps 202, causing them to open so that the wrist can enter between them. After entry, the arm clamps 202 rotate and close, and an external air source inflates the air pressure strap 3, causing it to expand and contact the wrist. When the air pressure input into the inner cavity of the air pressure strap 3 reaches a sufficiently high level to stop blood flow in the arteries, the pressure sensor in the air pressure strap 3 records the pressure value at that moment, corresponding to the systolic blood pressure. The air pressure strap 3 is then released. During the air pressure release process, the pressure sensor inside the air pressure strap 3 detects the resumption of blood flow in the artery. When the monitored pressure drops to a specific level, corresponding to the diastolic pressure, the measurement ends. The air inside the air pressure strap 3 is then extracted, and the actuator 4 causes the arm clamp 202 to rotate and open. When the arm clamp 202 is open, the wrist is away from the blood pressure monitor 100, corresponding to the standby state of the wrist blood pressure monitor 100: the arm clamp 202 is fully open, and the air pressure strap 3 is in a normal contracted state with no air inside. This wrist blood pressure monitor 100 has a simple structure, small size, and high adaptability.

[0046] The linkage assembly 201 includes a first link 203 and a second link 204. One end of the first link 203 and one end of the second link 204 are hinged to the fixed platform 1, and the hinge points of the first link 203 and the fixed platform 1 do not coincide with the hinge points of the second link 204 and the fixed platform 1. The other ends of the first link 203 and the second link 204 are hinged to the arm clamp 202, and the hinge points of the first link 203 and the arm clamp 202 do not coincide with the hinge points of the second link 204 and the arm clamp 202. The hinge points of the arm clamp 202 with the first link 203 and the second link 204 are located at the end away from the pneumatic strap 3. The fixed platform 1, the first link 203, the second link 204, and the arm clamp 202 form a linkage mechanism. Using a linkage mechanism to drive the arm clamp 202 to rotate results in a simple structure, stable motion, and the ability to meet various motion patterns and adapt to different rotation requirements of the arm clamp 202. It should also be explained here that the reasonable setting of the lengths of the first link 203, the second link 204, and the arm clamp 202, so that the two arm clamps 202 can drive the two pneumatic straps 3 to close and open, is a common practice for those skilled in the art and will not be elaborated here.

[0047] In this specific embodiment, a transmission gear 205 is connected to one end of the first connecting rod 203 that is hinged to the fixed platform 1. The two transmission gears 205 mesh with each other. The output end of the driver 4 is keyed to one of the transmission gears 205. The transmission gear 205 connected to the driver 4 drives the other transmission gear 205 to drive the transmission, thereby achieving the purpose of simultaneously driving the two arm clamps 202 to rotate using the driver 4. The gear transmission structure is stable and reliable, improving the accuracy of the rotation of the arm clamps 202. In other specific embodiments of this utility model, other transmission structures can be selected to meet different working conditions. The driver 4 can be a motor.

[0048] In other specific embodiments achievable by this utility model, the fixed platform 1 includes an upper fixed plate 101, a connecting plate 102, and a lower fixed plate 103. The upper fixed plate 101 is connected to the lower fixed plate 103 via the connecting plate 102, forming an "I"-shaped structure. After the first connecting rod 203 and the second connecting rod 204 extend between the upper fixed plate 101 and the lower fixed plate 103, they are fixed by the first pin 206. The upper fixed plate 101, the lower fixed plate 103, the first connecting rod 203, and the second connecting rod 204 all have a first mounting hole 207 that is adapted to the first pin 206. The first pin 206 passes through the first mounting hole 207 in sequence and is fixed by a nut. The fixed platform 1 adopts a double-layer plate structure, which provides installation space for the first link 203 and the second link 204, and at the same time serves to limit the axial position of the first link 203 and the second link 204, thereby improving the structural reliability of the link assembly 201. The first pin 206 is used to realize the hinge connection between the first link 203 and the second link 204 and the fixed platform 1. The structure is simple and easy to assemble and disassemble.

[0049] Correspondingly, similar to the double-layer plate structure of the fixed platform 1, the arm clamp 202 has a U-shaped mounting groove 208. The first connecting rod 203 and the second connecting rod 204 are rotatably extended into the mounting groove 208 and then fixed by the second pin 209. The arm clamp 202, the first connecting rod 203 and the second connecting rod 204 all have second mounting holes 210 that are adapted to the second pin 209. The second pin 209 passes through the second mounting holes 210 in sequence and is fixed by a nut. The mounting groove 208 can also limit the extreme rotation positions of the first connecting rod 203 and the second connecting rod 204, thereby improving the movement stability and reliability of the arm clamp 202.

[0050] Specifically, the inner side of the pneumatic strap 3 has multiple protrusions 301. The protrusions 301 are columnar structures and are arranged along the arc length direction of the pneumatic strap 3. The protrusions 301 can ensure that the pneumatic strap 3 can be in close contact with the human wrist so that the pneumatic strap 3 can block the blood flow in the artery of the human wrist after inflation, thereby achieving the purpose of blood pressure measurement.

[0051] In other specific embodiments of this utility model, the inner side of the pneumatic strap 3 has multiple protrusions 301, each protruding in a hemispherical shape. These protrusions 301 are evenly distributed on the side of the pneumatic strap 3 away from the arm clip 202. When the pneumatic strap 3 is inflated, the hemispherical protrusions 301 ensure close contact between the pneumatic strap 3 and the human body, improving the reliability of the blood pressure monitor 100. In practical applications, the specific shape of the protrusions 301 can be adjusted according to specific measurement needs, improving the flexibility and adaptability of the blood pressure monitor 100.

[0052] In practical applications, a micro air pump 5 is installed on the fixed platform 1 to further reduce the space occupied by the blood pressure monitor 100. The air pump 5 is connected to the inner cavity of the pneumatic strap 3 via a rubber tube 501 to inflate and deflate the pneumatic strap 3. In this specific embodiment, the pneumatic strap 3 has a connecting hole 302, and the rubber tube 501 is connected to the inner cavity of the pneumatic strap 3 via the connecting hole 302.

[0053] More specifically, the pneumatic strap 3 and the arm clip 202 are detachably connected, which facilitates the disassembly and replacement of the pneumatic strap 3, and helps to further improve the flexibility and adaptability of the blood pressure monitor 100 and extend the service life of the blood pressure monitor 100.

[0054] It should also be noted that the inner wall of the arm clip 202, where it connects to the pneumatic strap 3, has protruding fixing ribs 211. The pneumatic strap 3 fits snugly against the fixing ribs 211, improving the reliability of the connection between the arm clip 202 and the pneumatic strap 3. In practical applications, the arm clip 202 and the pneumatic strap 3 can be connected by snap-fit ​​or adhesive methods, thereby ensuring the stability of the pneumatic strap 3 during the operation of the blood pressure monitor 100.

[0055] Furthermore, this utility model also provides a medical service robot, which includes the above-mentioned wrist blood pressure monitor 100. The wrist blood pressure monitor 100 is connected to the mechanical arm of the medical service robot. It does not require manual operation or self-wearing of a pneumatic strap 3. It is easy to assemble, can be installed on multiple platforms, is small in size, and has a simple structure. It can be applied to existing medical service robot equipment, filling the gap in the existing robots' inability to realize the function of rapid and automatic detection of human blood pressure.

[0056] The wrist blood pressure monitor 100 and the medical service robot of this utility model will be further explained and described below through specific embodiments.

[0057] Example 1

[0058] In this embodiment, an object movement detection module is installed on the fixed platform 1 to detect whether a human wrist is approaching.

[0059] When the wrist blood pressure monitor 100 is in working condition, such as Figure 1 As shown, when the object movement detection module detects that the human wrist is approaching, the motor starts to rotate clockwise. The rotation of the motor's output shaft drives the movable arm 2 to rotate inward. At the same time, the transmission gear 205 of the movable arm 2 drives the transmission gear 205 of the other movable arm 2 to rotate counterclockwise. The movable arm 2 rotates inward, and finally the two arm clamps 202 clamp the human wrist. The micro air pump 5 delivers air to the inner cavity of the air pressure strap 3 through the rubber tube 501, causing the air pressure strap 3 to expand. When the air pressure input by the micro air pump 5 to the air pressure strap 3 reaches a sufficiently high level to stop the blood flow in the artery, the pressure sensor in the pressure strap records the pressure value at this moment, which corresponds to the human body's systolic pressure. The micro air pump further releases the air in the air pressure strap 3. During the air pressure release process, the pressure sensor inside the air pressure strap 3 detects that the blood flow in the artery has restarted. When the detected pressure drops to a specific level, which corresponds to the human body's diastolic pressure, the recording is completed and the working state ends.

[0060] When the wrist blood pressure monitor 100 is in standby mode, after measuring the blood pressure value on the wrist, the miniature air pump 5 extracts the gas from the inner cavity of the air pressure strap 3, causing the air pressure strap 3 to contract. The motor begins to rotate counterclockwise, and the counterclockwise rotation of the motor's output shaft drives the first connecting rod 203 to rotate counterclockwise. One movable arm 2 rotates outward, and the transmission gear 205 of this movable arm 2 drives another transmission gear 205 to rotate clockwise. The other movable arm 2 also rotates outward. The user can remove their wrist during this process. The wrist blood pressure monitor 100 of this embodiment can be installed on the robotic arm of a medical service robot, enabling the medical service robot to automatically detect human blood pressure and improving the adaptability of the medical service robot.

[0061] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A wrist blood pressure monitor, characterized in that, include: Fixed platform; The movable arms are arranged in two sets, symmetrically about the center line of the fixed platform. Each movable arm includes a linkage assembly and an arm clamp. The linkage assembly is rotatably connected to the fixed platform, and the arm clamp is connected to the end of the linkage assembly away from the fixed platform. The linkage assembly can drive the arm clamp to rotate, so that the arm clamps of the two movable arms can close and open. A driver is provided on the fixed platform, and the driver is kinetically connected to the linkage assembly to drive the arm clamp to rotate. The pneumatic strap has a hollow structure and is made of flexible material. Its inner cavity is connected to an external air source, which can inflate and deflate the inner cavity. A pressure sensor is installed within the inner cavity of the pneumatic strap. The pneumatic straps are positioned inside the arm clamp, with each strap corresponding to the other. The pneumatic straps are arc-shaped, allowing them to wrap around the wrist. A protrusion is present on the side of the pneumatic strap away from the arm clamp to ensure close contact with the wrist.

2. The wrist blood pressure monitor according to claim 1, characterized in that: The linkage assembly includes a first link and a second link. One end of the first link and one end of the second link are respectively hinged to the fixed platform, and the hinge point of the first link and the fixed platform does not coincide with the hinge point of the second link and the fixed platform. The other end of the first link and the other end of the second link are respectively hinged to the arm clamp, and the hinge point of the first link and the arm clamp does not coincide with the hinge point of the second link and the arm clamp. The hinge point of the arm clamp with the first link and the second link is located at the end away from the pneumatic strap. The fixed platform, the first link, the second link, and the arm clamp form a linkage mechanism.

3. The wrist blood pressure monitor according to claim 2, characterized in that: The first connecting rod is hinged to one end of the fixed platform and connected to a transmission gear. The two transmission gears mesh with each other, and the output end of the driver is keyed to one of the transmission gears.

4. The wrist blood pressure monitor according to claim 3, characterized in that: The fixed platform includes an upper fixed plate, a connecting plate, and a lower fixed plate. The upper fixed plate is connected to the lower fixed plate by the connecting plate, forming an "I" shaped structure. The first connecting rod and the second connecting rod extend between the upper fixed plate and the lower fixed plate and are fixed by a first pin. The upper fixed plate, the lower fixed plate, the first connecting rod, and the second connecting rod all have a first mounting hole that matches the first pin. The first pin passes through the first mounting hole in sequence and is fixed by a nut.

5. The wrist blood pressure monitor according to claim 4, characterized in that: The arm clamp has a U-shaped mounting groove. The first connecting rod and the second connecting rod are rotatably extended into the mounting groove and then fixed by a second pin. The arm clamp, the first connecting rod and the second connecting rod all have a second mounting hole that matches the second pin. The second pin passes through the second mounting hole in sequence and is then fixed by a nut.

6. The wrist blood pressure monitor according to any one of claims 1-5, characterized in that: The inner side of the pneumatic strap has multiple protrusions, which are columnar structures and are arranged along the arc length direction of the pneumatic strap.

7. The wrist blood pressure monitor according to any one of claims 1-5, characterized in that: The inner side of the pneumatic strap has multiple protrusions, each protrusion being a hemispherical structure, and the protrusions are evenly distributed on the side of the pneumatic strap away from the arm clamp.

8. The wrist blood pressure monitor according to any one of claims 1-5, characterized in that: An air pump is installed on the fixed platform, and the air pump is connected to the inner cavity of the air pressure strap via a rubber tube.

9. The wrist blood pressure monitor according to claim 1, characterized in that: The pneumatic strap is detachably connected to the arm clamp; The inner wall of the arm clamp connected to the pneumatic strap has protruding fixing ribs, and the pneumatic strap fits into the fixing ribs.

10. A medical service robot, characterized in that: The device includes a wrist blood pressure monitor as described in any one of claims 1-9, wherein the wrist blood pressure monitor is connected to the robotic arm of the medical service robot.

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