Hemodynamic monitoring protection device

Abstract

The invention relates to the technical field of medical instruments, in particular to a hemodynamic monitoring protection device which comprises a monitor used for monitoring hemodynamic data of a patient and further comprises a support and a plurality of clamping plates used for clamping arms or thighs of the patient, a mounting ring is fixedly connected to the support, a toothed ring is rotationally matched with the side wall of the mounting ring, and the toothed ring is fixedly connected to the support. A driving assembly for driving the gear ring to rotate is arranged on the mounting ring; a plurality of fixing rods are fixedly connected to the side, away from the mounting ring, of the gear ring and rotationally matched with the adjacent clamping plates. The fixing rod is provided with a limiting assembly used for preventing the clamping plate from sliding off. A plurality of sliding grooves are formed in the mounting ring, sliding rods are vertically arranged in the sliding grooves in a sliding fit mode, and the sliding rods are hinged to the clamping plates adjacent to the sliding rods; the system is complete in structure and complete in function, and the treatment experience of patients and the accuracy of data acquisition can be effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a protective device for hemodynamic monitoring. Background Art

[0002] Hemodynamics is a discipline that studies the mechanical laws of blood flow in the cardiovascular system and its physiological and pathological significance. It provides an important basis for clinical diagnosis and treatment by analyzing the physical properties of blood flow (such as pressure, flow and resistance) and cardiac function.

[0003] In the existing technology, when monitoring a patient's hemodynamic data, the patient's arm is often wrapped with a wrap-around cuff to collect the hemodynamic data at the patient's arm position. However, since the hemodynamic data needs to be monitored for a long time, the patient's arm needs to be wrapped in the cuff for a long time. Due to the poor breathability of the cuff, it is very easy to cause the patient's arm to sweat profusely, affecting the patient experience and the accuracy of data monitoring.

[0004] In summary, addressing the existing issue of hemodynamic monitoring, where structural defects in the cuff cause patients to sweat profusely during monitoring, impacting both the patient experience and the accuracy of data monitoring, has become a pressing challenge in the field. Therefore, it is necessary to propose a protective device for hemodynamic monitoring that can optimize the patient experience and improve data monitoring accuracy. Summary of the Invention

[0005] In order to solve the above problems, the present invention provides a protective device for hemodynamic monitoring. Through the design of the clamping plate, it can stably clamp arms of different arm circumferences. At the same time, the clamping plate adopts multi-point clamping to collect the hemodynamic data of the patient's arm. While fixing the patient's arm, it provides a good breathable environment for the patient's arm, avoiding excessive sweating of the patient's arm, affecting the patient experience and the accuracy of data monitoring.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the present invention is as follows: a protective device for hemodynamic monitoring, comprising a monitor for monitoring the patient's hemodynamic data, a bracket and a plurality of clamping plates for clamping the patient's arm, the bracket is fixedly connected to a mounting ring, the side wall of the mounting ring is rotatably engaged with a gear ring, and the mounting ring is provided with a driving component for driving the gear ring to rotate; a plurality of fixed rods are fixedly connected to the side of the gear ring away from the mounting ring, and the fixed rods are all rotatably engaged with the adjacent clamping plates; the fixed rods are provided with a limiting component for preventing the clamping plates from slipping; a plurality of sliding grooves are opened on the mounting ring, and sliding rods are vertically slidably engaged in the sliding grooves, and the sliding rods are all hinged to the adjacent clamping plates.

[0007] The clamping plates are each provided with an arm monitoring component for monitoring the hemodynamic data of the patient's arm; the arm monitoring components are each electrically connected to the monitor via a cable; the monitor is also electrically connected to a hand monitoring component for monitoring the hemodynamic data of the patient's hand via a cable; and the mounting ring is provided with a tidying component for tidying the cables.

[0008] The technical principles of the above scheme are as follows:

[0009] The patient places his arm into the gear ring and his fingers into the hand monitoring assembly; the driving assembly drives the gear ring and the fixed rod to rotate around the axis of the gear ring. Since the clamping plate is hinged to the sliding rod, the sliding rod will limit the clamping plate. Since the clamping plate and the fixed rod rotate in coordination, the fixed rod will drive the clamping plate to rotate, so that the clamping plates move away from or closer to each other away from one end of the sliding rod, thereby clamping arms of different arm circumferences; at the same time, the arm monitoring assembly will monitor the hemodynamic data of the patient's arm and transmit it to the monitor.

[0010] When the clamping plate rotates, the sliding rod and the sliding groove slide together, and the clamping plate will push the sliding rod to slide vertically in the sliding groove, so that the hand monitoring component fits the patient's fingers, monitors the hemodynamic data of the patient's hand, and transmits it to the monitor.

[0011] The management component organizes the cables while the drive is running.

[0012] The above scheme has the following beneficial effects:

[0013] 1. In the prior art, a cuff is used to wrap the patient's arm to collect hemodynamic data at the patient's arm position. However, since hemodynamic data requires long-term monitoring, the patient's arm needs to be wrapped with a cuff for a long time. Due to the poor air permeability of the cuff, it is easy to cause the patient's arm to sweat profusely, affecting the patient experience and the accuracy of data monitoring. The present invention uses a clamping plate design to fix the patient's arm in a multi-point contact manner when clamping the patient's arm, preventing the poor air permeability of the patient's arm position due to the full wrapping of the patient's arm, preventing the patient from sweating profusely, thereby improving the patient's treatment experience and reducing the impact of sweat on the accuracy of the collected hemodynamic data.

[0014] 2. The present invention improves the comprehensiveness and practicality of the device by designing the clamping plates and adjusting the spacing between the clamping plates by rotating them, thereby stably clamping arms of different arm circumferences. Although cuffs in the prior art can also stably wrap arms of different arm circumferences, they rely on Velcro to achieve the wrapping function. As a common medical device, they need to be strictly cleaned and disinfected, but the presence of Velcro makes the cuff extremely difficult to clean and disinfect. The clamping plates in the present invention have a simple structure and are easy to clean and disinfect, greatly ensuring the cleanliness and safety of the device.

[0015] 3. In the prior art, the monitor needs to rely on cables to connect with various sensors to complete data transmission; however, during the monitoring process, the swing of the cables can easily cause the sensors and cable ports to loosen, thereby affecting the sensor monitoring and data transmission; the present invention uses the design of the tidying component. While adjusting the angle and position of the clamping plate, the tidying component will tidy the cables to avoid cable swinging, thereby improving the stability of the cables and sensors and ensuring that data monitoring work can proceed smoothly.

[0016] Furthermore, the drive assembly includes a controller and a drive member fixedly connected to the mounting ring, the output shaft of the drive member is coaxially fixedly connected to a gear, and the gear is engaged with the gear ring; the controller is used to control the operation of the drive member, thereby driving the gear to rotate.

[0017] Beneficial effect: Medical staff only need to start the driving part through the controller, and adjust the spacing of the clamping plates through the transmission of the gears and the gear ring, so that the clamping plates can clamp arms with different arm circumferences, improving the convenience of operation.

[0018] Furthermore, the limiting assembly includes a limiting ring, and the fixing rods all pass through the adjacent clamping plates and are detachably connected to the limiting ring; a number of connecting rods are fixedly connected to the gear ring, and the ends of the connecting rods away from the gear ring are detachably connected to the limiting ring.

[0019] Beneficial Effects: The retaining ring can limit the clamping plate, preventing it from sliding off the fixed rod and improving its stability. Furthermore, the retaining ring is detachably connected to the fixed rod and connecting rod. After removing the retaining ring, medical staff can remove the clamping plate for cleaning and disinfection, ensuring the cleanliness and safety of the device.

[0020] Furthermore, the arm monitoring assembly includes a piezoresistive film fixedly connected to an end of the clamping plate away from the slide groove. The piezoresistive film is used to monitor the patient's blood pressure data and transmit it to the monitor.

[0021] Beneficial effects: When the clamping plate clamps the patient's arm, the clamping plate and the patient's arm will remain in contact. At this time, the piezoresistive film can effectively monitor the patient's blood pressure data and transmit it to the monitor. Medical staff no longer need to fix the piezoresistive film separately, which improves the automation and convenience of data monitoring.

[0022] Furthermore, the hand monitoring assembly includes an upper splint and a lower splint, the middle part of the upper splint is hinged to the middle part of the lower splint, an airbag is provided between the upper splint and the lower splint, and the bottom of the airbag is fixedly connected to the top of the lower splint; the end of the lower splint away from the airbag is fixedly connected to a photoelectric sensor, a volume clamp sensor, a thermal diffusion sensor and a transcutaneous carbon dioxide partial pressure sensor; the photoelectric sensor, the volume clamp sensor and the thermal diffusion sensor are used to monitor the patient's blood oxygen saturation, pulse rate, arterial blood pressure waveform and finger microcirculation blood flow velocity, respectively, and transmit them to the monitor.

[0023] An air supply assembly for inflating the airbag is provided on the mounting ring; an air pressure monitoring system is provided inside the airbag.

[0024] Beneficial effect: The patient's finger only needs to be placed between the upper splint and the lower splint. When the clamping plate rotates, it will drive the air supply component to pump gas into the airbag, and then drive the upper and lower splints to clamp the patient's finger. At the same time, the photoelectric sensor, volume clamp sensor and thermal diffusion sensor are fitted with the patient's finger. There is no need for medical staff to manually clamp the patient's finger, which improves the convenience of data monitoring.

[0025] Furthermore, the air supply assembly includes several piston boxes fixedly connected to the mounting ring, and piston plates are vertically slidably fitted in the piston boxes. The piston plates are hinged with piston rods on the side close to the axis of the mounting ring, and the piston rods are hinged to the sliding rods adjacent to them; the piston boxes are connected to the airbags on the side away from the sliding rods.

[0026] Beneficial effect: When the clamping plate rotates, it pushes the slide rod, piston rod and piston plate to slide vertically in the piston box, and then pumps the gas in the piston box into the airbag, causing the airbag to expand. There is no need to design additional pump components, which reduces the production cost of the device.

[0027] Furthermore, the arranging component includes a rotating rod, which is coaxially fixedly connected to the side of the gear away from the driving member, and the middle part of the cable is fixedly connected to the rotating rod.

[0028] Beneficial effect: When the driving member drives the gear to rotate, the gear will drive the rotating rod to rotate, and the rotating rod will reel in the excess cable, reducing the risk of cable swinging.

[0029] Furthermore, a plurality of infrared lamps are fixedly connected to the inner side wall of the mounting ring, and the controller is used to control the operation of the infrared lamps, thereby assisting medical personnel in determining the clamping points of the clamping plate.

[0030] Beneficial effects: After the patient's arm is placed in the mounting ring, medical staff can start the infrared lamp through the controller. The irradiation position of the infrared lamp represents the clamping position of the clamping plate, thereby ensuring that the clamping plate can reasonably clamp the patient's arm and ensure that the piezoresistive film can fit the correct monitoring position, thereby improving the clamping effect and monitoring effect.

[0031] Furthermore, the air pressure monitoring system includes a pressure sensor fixedly connected to the airbag, which is used to monitor the pressure value in the airbag and transmit it to the controller; the airbag and the piston box are connected at the connection point with a solenoid valve; the side wall of the piston box is connected to a control valve, and the controller is used to set the pressure threshold. When the pressure value in the airbag reaches the pressure threshold, the controller controls the solenoid valve to close and open the control valve

[0032] Beneficial effects: The solenoid valve can control the flow of gas between the airbag and the piston box, thereby ensuring that the upper and lower splints can clamp the patient's fingers with a reasonable force, ensuring the safety of the patient's fingers while ensuring the normal monitoring work; when the solenoid valve is closed, the control valve will open to ensure the fluidity between the piston box and the external environment, so that the piston plate, piston rod and clamping plate can move normally, ensuring the feasibility of the device.

[0033] Furthermore, the end of the clamping plate away from the slide rod is arc-shaped.

[0034] Beneficial effects: The curved end of the clamping plate is used to clamp the patient's arm, and the curved design can improve the comfort during clamping.

[0035] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic diagram of the installation of the protective device and monitor for hemodynamic monitoring of the present invention.

[0037] Figure 2 This is an axonometric diagram of the protective device for hemodynamic monitoring of the present invention.

[0038] Figure 3 This is a front view of the protective device for hemodynamic monitoring of the present invention in the initial state.

[0039] Figure 4 This is a front view of the protective device for hemodynamic monitoring of the present invention in a clamped state.

[0040] Figure 5 This is a front cross-sectional view of the protective device for hemodynamic monitoring of the present invention in its initial state.

[0041] The figure marks in the drawings of the specification include: 1. monitor; 2. bracket; 3. clamping plate; 4. mounting ring; 5. gear ring; 6. fixing rod; 7. sliding rod; 8. DC motor; 9. gear; 10. limiting ring; 11. upper clamping plate; 12. lower clamping plate; 13. airbag; 14. piston box; 15. piston plate; 16. piston rod; 17. rotating rod; 18. infrared lamp; 19. connecting rod. DETAILED DESCRIPTION

[0042] The following is further described in detail through specific implementation methods:

[0043] Example 1:

[0044] like Figure 1 and Figure 2 As shown, a protective device for hemodynamic monitoring includes a monitor 1 for monitoring the hemodynamic data of a patient (such as a PICCO monitoring device, a NICOM monitoring device and a USCOM monitoring device, and the USCOM monitoring device is selected in this embodiment), a bracket 2 and a plurality of clamping plates 3 for clamping the patient's arm or thigh. This embodiment only takes the arm as an example, but in actual application, the device can be used on both the arm and the thigh. A mounting ring 4 is welded on the bracket 2, and a gear ring 5 is rotatably engaged with the side wall of the mounting ring 4. The mounting ring 4 is provided with a driving component for driving the gear ring 5 to rotate; a plurality of fixing rods 6 are bolted to the side of the gear ring 5 away from the mounting ring 4, and the fixing rods 6 are all rotatably engaged with the adjacent clamping plates 3; a limiting component is provided on the fixing rod 6 for preventing the clamping plates 3 from slipping; a plurality of sliding grooves are opened on the mounting ring 4, and sliding rods 7 are vertically slidably engaged in the sliding grooves, and the sliding rods 7 are all hinged to the adjacent clamping plates 3.

[0045] The clamping plates 3 are each provided with an arm monitoring component for monitoring the hemodynamic data of the patient's arm; the arm monitoring components are each electrically connected to the monitor 1 via a cable; the monitor 1 is also electrically connected to a hand monitoring component for monitoring the hemodynamic data of the patient's hand via a cable; the mounting ring 4 is provided with a tidying component for tidying the cables.

[0046] like Figure 2 As shown, the drive assembly includes a controller and a drive member fixedly connected to the mounting ring 4 with bolts. In this embodiment, the drive member is a DC motor 8; the output shaft of the DC motor 8 is fixedly connected to a gear 9 with coaxial bolts, and the gear 9 is engaged with the gear ring 5; the controller is used to control the operation of the DC motor 8, thereby driving the gear 9 to rotate.

[0047] Specifically, medical personnel activate DC motor 8 via a controller. The output shaft of DC motor 8 drives gear 9 to rotate. Because gear 9 meshes with ring gear 5, gear 9 drives ring gear 5, which in turn drives fixed rod 6 and clamping plate 3, enabling clamping plate 3 to clamp arms of varying circumferences. Medical personnel simply activate DC motor 8 via the controller. Using the transmission between gear 9 and ring gear 5, they can adjust the spacing of clamping plates 3, enabling them to clamp arms of varying circumferences, improving operational convenience.

[0048] like Figure 2 As shown, the limiting assembly includes a limiting ring 10, and the fixing rods 6 all pass through the adjacent clamping plates 3 and are detachably engaged with the limiting ring 10; a plurality of connecting rods 19 are bolted fixedly connected to the gear ring 5, and the ends of the connecting rods 19 away from the gear ring 5 are detachably engaged with the limiting ring 10.

[0049] Specifically, as the clamping plate 3 rotates, the gear ring 5 drives the connecting rod 19 and the limiting ring 10 to rotate together; the limiting ring 10 can limit the clamping plate 3, preventing the clamping plate 3 from sliding laterally along the fixed rod 6, thereby preventing the clamping plate 3 from sliding off the fixed rod 6 and improving the stability of the clamping plate 3. At the same time, because the limiting ring 10 is detachably engaged with the connecting rod 19 and the fixed rod 6, after removing the limiting ring 10, medical staff can remove the clamping plate 3, clean and disinfect it, ensuring the cleanliness and safety of the device.

[0050] The arm monitoring assembly includes a piezoresistive film (not shown in the figure) fixedly bonded to the end of the clamping plate 3 away from the slide groove. The piezoresistive film is used to monitor the patient's blood pressure data and transmit it to the monitor 1.

[0051] Specifically, when the clamping plate 3 clamps the patient's arm, the clamping plate 3 and the patient's arm will remain in contact, so that the piezoresistive film fits the patient's skin. At this time, the piezoresistive film can effectively monitor the patient's blood pressure data and transmit it to the monitor 1. Medical staff no longer need to fix the piezoresistive film separately, which improves the automation and convenience of data monitoring.

[0052] like Figure 1As shown, the hand monitoring assembly includes an upper splint 11 and a lower splint 12. The middle of the upper splint 11 is hinged to the middle of the lower splint 12. An airbag 13 is located between the upper and lower splints 11 and 12, with the bottom of the airbag 13 fixedly bonded to the top of the lower splint 12. A photoelectric sensor, a volume clamp sensor, a thermal diffusion sensor, and a transcutaneous carbon dioxide partial pressure sensor (not shown) are fixedly bonded to the end of the lower splint 12 away from the airbag 13. The photoelectric sensor, volume clamp sensor, and thermal diffusion sensor are used to monitor the patient's blood oxygen saturation, pulse rate, arterial blood pressure waveform, and finger microcirculatory blood flow velocity, respectively, and transmit the information to the monitor 1. The mounting ring 4 is equipped with an air supply assembly for inflating the airbag 13; the airbag 13 is equipped with an air pressure monitoring system.

[0053] Specifically, the patient's finger is placed between the upper splint 11 and the lower splint 12 on the side away from the airbag 13. When the clamping plate 3 rotates, it drives the air supply assembly to pump gas into the airbag 13, causing the airbag 13 to expand. Since the middle part of the upper splint 11 is hinged with the middle part of the lower splint 12, combined with the principle of leverage, the upper splint 11 and the lower splint 12 on the side close to the airbag 13 will be squeezed by the airbag 13 and move away from each other, causing the upper splint 11 and the lower splint 12 on the side away from the airbag 13 to move closer to each other, so that the upper splint 11 and the lower splint 12 jointly clamp the patient's finger, so that the photoelectric sensor, volume clamp sensor and thermal diffusion sensor are in contact with the patient's finger, monitoring the patient's blood oxygen saturation, pulse rate, arterial blood pressure waveform and finger microcirculation blood flow velocity, and transmitting them to the monitor 1. Through this design, medical staff do not need to manually clamp the patient's finger. They only need to ensure that the patient's finger is placed in the correct position. The device can automatically clamp and monitor the patient's finger, improving the convenience of data monitoring.

[0054] like Figure 1 、 Figure 2 and Figure 5 As shown, the air supply assembly includes several piston boxes 14 welded to the mounting ring 4, and piston plates 15 are vertically slidably fitted in the piston boxes 14. The piston plates 15 are hinged with piston rods 16 on the side close to the axis of the mounting ring 4, and the piston rods 16 are hinged to the slide rods 7 adjacent to them; the side of the piston boxes 14 away from the slide rod 7 is connected to the airbag 13.

[0055] Specifically, when the clamping plate 3 rotates, it pushes the slide rod 7, the piston rod 16 and the piston plate 15 to slide vertically in the piston box 14, and then pumps the gas in the piston box 14 into the airbag 13, causing the airbag 13 to expand; through the design of the piston box 14, there is no need to design additional pump components, which reduces the production cost of the device.

[0056] like Figure 1As shown, the volume of the airbag 13 is much smaller than that of the piston box 14. A slight movement of the piston plate 15 will cause the volume of the airbag 13 to change significantly, thereby sensitively adjusting the distance between the upper splint 11 and the lower splint 12, so that the upper splint 11 and the lower splint 12 can effectively clamp the patient's fingers.

[0057] like Figure 1 and Figure 2 As shown, the arranging assembly includes a rotating rod 17, which is fixedly connected to the gear 9 on the side away from the DC motor 8 by coaxial bolts, and the middle part of the cable is fixedly bonded to the rotating rod 17.

[0058] Specifically, when the DC motor 8 drives the gear 9 to rotate, the gear 9 also drives the rotating rod 17 to rotate. The rotating rod 17 then reels in excess cable, reducing the risk of cable swing. In the prior art, the monitor 1 relies on cables to connect to various sensors to complete data transmission. However, during the monitoring process, cable swing can easily cause the various sensors and cable ports to loosen, thereby affecting data monitoring and transmission. The present invention utilizes the design of the rotating rod 17, which simultaneously adjusts the angle and position of the clamping plate 3 while arranging the cables, reducing cable swing and thereby improving the stability of the cables and sensors, ensuring stable data monitoring.

[0059] The air pressure monitoring system includes a pressure sensor fixedly bonded to the airbag 13. The pressure sensor is used to monitor the pressure value in the airbag 13 and transmit it to the controller; the connection point between the airbag 13 and the piston box 14 is connected with an electromagnetic valve; the side wall of the piston box 14 is connected with a control valve, and the controller is used to set the pressure threshold. When the pressure value in the airbag 13 reaches the pressure threshold, the controller will close the electromagnetic valve and open the control valve.

[0060] Specifically, when it is necessary to supply air to the airbag 13, medical staff can open the solenoid valve and close the control valve through the controller, so that the piston plate 15 can transport the gas in the piston box 14 to the airbag 13, causing the airbag 13 to expand, and the upper splint 11 and the lower splint 12 to clamp the patient's fingers for monitoring; when the pressure sensor detects that the pressure value in the airbag 13 reaches the pressure threshold, the controller controls the solenoid valve to close and open the control valve, so that the gas in the piston box 14 is discharged to the outside through the control valve, preventing the airbag 13 from continuing to expand and preventing the patient's fingers from being pinched, while ensuring that the piston plate 15, piston rod 16 and clamping plate 3 can move normally.

[0061] The end of the clamping plate 3 away from the sliding rod 7 is arc-shaped; the arc-shaped end of the clamping plate 3 is used to clamp the patient's arm. Compared with the flat structural design, the arc-shaped clamping plate 3 can reduce the squeezing of the corners on the patient and improve the comfort of the patient when being clamped.

[0062] The specific implementation process is as follows:

[0063] In the initial state, the device as a whole is as follows Figure 3 As shown, at this time, the solenoid valve is in the open state and the control valve is in the closed state.

[0064] by Figure 1 For example, first, the medical staff places the patient's arm (upper arm) in the mounting ring 4 from the left side, and at the same time, puts the patient's finger into the gap between the upper splint 11 and the left side of the lower splint 12.

[0065] by Figure 3 and Figure 4 For example, after the patient's arm and fingers are placed, the medical staff starts the DC motor 8 through the controller, and the output shaft of the DC motor 8 drives the gear 9 to rotate counterclockwise, and the gear 9 drives the gear ring 5, the fixed rod 6 and the limit ring 10 to rotate clockwise, and at the same time makes the clamping plate 3 rotate counterclockwise around the axis of the fixed rod 6, so that the clamping plates 3 are close to each other, and then clamp the patient's arm; the more circles the gear 9 rotates, the greater the rotation angle of the gear ring 5, the fixed rod 6 and the limit ring 10, and the smaller the spacing between the clamping plates 3; thereby, the clamping plates 3 can adaptively clamp arms of different arm circumferences, thereby improving the comprehensiveness of the device.

[0066] by Figure 3 and Figure 4 For example, at the same time, the clamping plate 3 pushes the slide bar 7 to slide in the slide groove toward the outside of the mounting ring 4, thereby pushing the piston rod 16 and the piston plate 15 to slide in the piston box 14 toward the outside of the mounting ring 4, and delivering the gas in the piston box 14 to the airbag 13. The airbag 13 expands, causing the upper splint 11 and the lower splint 12 to clamp the patient's fingers. The greater the rotation angle of the clamping plate 3, the greater the sliding distance of the slide bar 7, the piston rod 16 and the piston plate 15, the more gas is delivered by the piston box 14, the greater the expansion of the airbag 13, and the smaller the distance between the upper splint 11 and the lower splint 12. As a result, the upper splint 11 and the lower splint 12 can stably clamp fingers of different thicknesses, further improving the comprehensiveness of the device. In addition, the thicker the patient's arm, the thicker the fingers. This allows the device to match the patient's arm and fingers, thereby improving the clamping effect of the device.

[0067] by Figure 3 and Figure 4 For example, when the DC motor 8 drives the gear 9 to rotate counterclockwise, the gear 9 will drive the rotating rod 17 to rotate counterclockwise, thereby reeling in the excess cable, reducing cable swing, and improving the stability and accuracy of data monitoring.

[0068] After the patient's arm and fingers are clamped, the medical staff can start the monitor 1 to stably monitor the hemodynamic data of the patient's arm and fingers.

[0069] Compared with the cuff in the prior art, in this embodiment, the clamping plate 3 does not tightly wrap the patient's arm during the clamping process, so that the patient's arm has good air permeability, preventing the patient from sweating profusely, thereby effectively improving the patient's treatment experience, while also reducing the impact of sweat on the accuracy of the collected hemodynamic data, thereby improving the accuracy of data monitoring.

[0070] The clamping plate 3 in this embodiment can stably clamp arms of different arm circumferences, thereby fixing the patient's arm; although the cuff in the prior art can wrap arms of different arm circumferences, thereby fixing the patient's arm, it needs to rely on Velcro to achieve the wrapping function, and as a commonly used medical device, the cuff needs to be strictly cleaned and disinfected, but the presence of Velcro is extremely unfavorable for the cleaning and disinfection of the cuff; the clamping plate 3 in the present invention has a simple structure, is easy to clean and disinfect, and greatly ensures the cleanliness and safety of the device.

[0071] Example 2:

[0072] As attached Figure 2 As shown, different from the above embodiment, a plurality of infrared lamps 18 are fixedly bonded to the inner wall of the mounting ring 4 , and the controller is used to control the operation of the infrared lamps 18 , thereby assisting medical staff in determining the clamping point of the clamping plate 3 .

[0073] The specific implementation process is as follows: After the patient's arm is placed in the mounting ring 4, the medical staff can start the infrared lamp 18 through the controller. The irradiation position of the infrared lamp 18 represents the clamping position of the clamping plate 3, thereby ensuring that the clamping plate 3 can reasonably clamp the patient's arm, and ensure that the piezoresistive film can fit with the correct monitoring position (brachial artery path), thereby improving the clamping effect and monitoring effect.

[0074] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A protective device for hemodynamic monitoring, comprising a monitor (1) for monitoring hemodynamic data of a patient, characterized in that: The invention also comprises a bracket (2) and a plurality of clamping plates (3) for clamping the patient's arm, wherein a mounting ring (4) is fixedly connected to the bracket (2), a toothed ring (5) is rotatably fitted on the side wall of the mounting ring (4), and a driving assembly for driving the toothed ring (5) to rotate is provided on the mounting ring (4); a plurality of fixing rods (6) are fixedly connected to the side of the toothed ring (5) away from the mounting ring (4), and the fixing rods (6) are rotatably fitted with the adjacent clamping plates (3); a limiting assembly for preventing the clamping plates (3) from sliding is provided on the fixing rods (6); a plurality of sliding grooves are provided on the mounting ring (4), and a sliding rod (7) is vertically slidably fitted in the sliding grooves, and the sliding rods (7) are hinged to the adjacent clamping plates (3); The clamping plates (3) are each provided with an arm monitoring component for monitoring the hemodynamic data of the patient's arm; the arm monitoring components are each electrically connected to the monitor (1) via a cable; the monitor (1) is also electrically connected to a hand monitoring component for monitoring the hemodynamic data of the patient's hand via a cable; and the mounting ring (4) is provided with a tidying component for tidying the cables.

2. The protective device for hemodynamic monitoring according to claim 1, characterized in that: The driving assembly comprises a controller and a driving member fixedly connected to the mounting ring (4); the output shaft of the driving member is coaxially fixedly connected to a gear (9), and the gear (9) is meshed with the gear ring (5); the controller is used to control the operation of the driving member, thereby driving the gear (9) to rotate.

3. The protective device for hemodynamic monitoring according to claim 2, characterized in that: The limiting assembly comprises a limiting ring (10), and the fixing rods (6) all pass through the clamping plates (3) adjacent thereto and are all detachably connected to the limiting ring (10); a plurality of connecting rods (19) are fixedly connected to the gear ring (5), and the ends of the connecting rods (19) away from the gear ring (5) are all detachably connected to the limiting ring (10).

4. The protective device for hemodynamic monitoring according to claim 3, characterized in that: The arm monitoring component comprises a piezoresistive film fixedly connected to an end of a clamping plate (3) away from a slide groove, and the piezoresistive film is used to monitor the patient's blood pressure data and transmit it to the monitor (1).

5. The protective device for hemodynamic monitoring according to claim 4, characterized in that: The hand monitoring component comprises an upper splint (11) and a lower splint (12), wherein the middle portion of the upper splint (11) is hinged to the middle portion of the lower splint (12), an air bag (13) is provided between the upper splint (11) and the lower splint (12), and the bottom of the air bag (13) is fixedly connected to the top of the lower splint (12); a photoelectric sensor, a volume clamp sensor, a thermal diffusion sensor and a transcutaneous carbon dioxide partial pressure sensor are fixedly connected to one end of the lower splint (12) away from the air bag (13); the photoelectric sensor, the volume clamp sensor and the thermal diffusion sensor are used to monitor the patient's blood oxygen saturation, pulse rate, arterial blood pressure waveform and finger microcirculation blood flow velocity, and transmit the information to the monitor (1); An air supply assembly for inflating the air bag (13) is provided on the mounting ring (4); an air pressure monitoring system is provided in the air bag (13).

6. The protective device for hemodynamic monitoring according to claim 5, characterized in that: The air supply assembly comprises a plurality of piston boxes (14) fixedly connected to the mounting ring (4), wherein piston plates (15) are vertically slidably fitted in the piston boxes (14), and piston rods (16) are hingedly connected to the side of the piston plates (15) close to the axis of the mounting ring (4), and the piston rods (16) are hingedly connected to the slide rods (7) adjacent thereto; and the side of the piston boxes (14) away from the slide rods (7) is connected to the airbags (13).

7. The protective device for hemodynamic monitoring according to claim 6, characterized in that: The arranging component comprises a rotating rod (17), the rotating rod (17) is coaxially fixedly connected to the side of the gear (9) away from the driving member, and the middle part of the cable is fixedly connected to the rotating rod (17).

8. The protective device for hemodynamic monitoring according to claim 7, characterized in that: A plurality of infrared lamps (18) are fixedly connected to the inner side wall of the mounting ring (4), and the controller is used to control the operation of the infrared lamps (18), thereby assisting medical personnel in determining the clamping point of the clamping plate (3).

9. The protective device for hemodynamic monitoring according to claim 8, characterized in that: The air pressure monitoring system includes a pressure sensor fixedly connected to the airbag (13), the pressure sensor is used to monitor the pressure value in the airbag (13) and transmit it to the controller; the airbag (13) and the piston box (14) are both connected to the electromagnetic valve; the side wall of the piston box (14) is connected to the control valve, the controller is used to set the pressure threshold, when the pressure value in the airbag (13) reaches the pressure threshold, the controller controls the electromagnetic valve to close and opens the control valve.

10. The protective device for hemodynamic monitoring according to claim 9, characterized in that: The end of the clamping plate (3) away from the slide bar (7) is arc-shaped.

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