Medical monitoring pressure sensor

Abstract

This invention relates to the field of sensor technology and discloses a medical monitoring pressure sensor, comprising a circular tube, a sensor, a pipe, and a connecting device. The sensor is mounted on the lower surface of the circular tube, the pipe is located at one end of the circular tube, and the connecting device is located at one end of the circular tube. The connecting device includes a lower clamping ring, which is located on the lower surface of the pipe. A bracket is fixedly connected to the lower surface of the lower clamping ring, and the end of the bracket away from the lower clamping ring is fixedly connected to the circular tube. A through hole is formed on the upper surface of the lower clamping ring, and a vertical rod is slidably connected to the inner wall of the through hole. In this invention, no complex tools or precise alignment operations are required. Only the pipe needs to be inserted, and the rubber ring deforms and engages with the column for initial positioning. After the pressure plate is released, a torsion spring automatically drives the upper clamping ring downwards to clamp the pipe with the lower clamping ring. Disassembly only requires pressing the pressure plate to disengage the clamping ring and pull out the pipe, thus simplifying pipe connection and disassembly, significantly reducing operation time, and improving efficiency.

Description

Technical Field

[0001] This invention relates to the field of sensor technology, specifically to a medical monitoring pressure sensor. Background Technology

[0002] Medical monitoring pressure sensors are precision devices designed specifically for medical scenarios. They convert physiological pressure signals from the human body into recognizable electrical signals. Based on physical principles such as piezoresistive effect, piezoelectric effect, or capacitance change, they often integrate MEMS technology to enhance performance. Their structure includes a sensing element, a signal conversion circuit, and an output interface. After sensing pressure changes, the signal is amplified and filtered by the circuit before being transmitted to the monitoring device through the interface. These sensors feature high precision, high sensitivity, and resistance to electromagnetic interference. Some models are small enough to be adapted for minimally invasive procedures. They are widely used in blood pressure monitoring, ventilator airway pressure control, dialysis fluid pressure monitoring, and intracranial pressure and cardiac chamber pressure monitoring during surgery. They provide real-time data for diagnosis and treatment and are key components for ensuring medical safety in intensive care, surgery, and chronic disease management. However, connecting the sensor to the pipeline is not quick. The special connector needs to be precisely aligned with the direction of the bayonet or pressure plate and then rotated at a small angle to tighten it. This requires high operational precision and is time-consuming. Some threaded connections also require additional wrapping of Teflon tape or application of sealant, and even the use of a wrench to tighten to a specific torque, increasing auxiliary steps and tool dependence, which affects the efficiency of clinical operation. Therefore, we propose a medical monitoring pressure sensor. Summary of the Invention

[0003] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a medical monitoring pressure sensor that solves the problems of slow connection when connecting existing sensors to pipelines, the need for precise alignment of special connectors with the bayonet or pressure plate before small-angle rotation for tightening, high precision requirements and time consumption, and the need for additional wrapping of Teflon tape or application of sealant for some threaded connections, and even the need to use a wrench to tighten to a specific torque, which increases auxiliary steps and tool dependence and affects the efficiency of clinical operation.

[0004] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a medical monitoring pressure sensor, comprising a circular tube, a sensor, a pipe, and a connecting device. The sensor is mounted on the lower surface of the circular tube, the pipe is disposed at one end of the circular tube, and the connecting device is disposed at one end of the circular tube. The connecting device includes a lower clamping ring disposed on the lower surface of the pipe. A bracket is fixedly connected to the lower surface of the lower clamping ring, and the end of the bracket away from the lower clamping ring is fixedly connected to the circular tube. A through hole is formed on the upper surface of the lower clamping ring, and a vertical rod is slidably connected to the inner wall of the through hole of the lower clamping ring. The upper surface of the vertical rod... The pipe is fixedly connected to an upper clamping ring. A fixing plate is fixedly connected to the upper surface of the circular pipe. A rocker arm is fixedly connected to the surface of the fixing plate. A pressure plate is rotatably connected to the surface of the rocker arm. A rotating rod is rotatably connected to the surface of the upper clamping ring. By setting up a connecting device, no complicated tools or precise alignment operations are required. Simply insert the pipe, and the rubber ring deforms and cooperates with the column for initial positioning. After releasing the pressure plate, the torsion spring can automatically drive the upper clamping ring downward to clamp the pipe with the lower clamping ring. When disassembling, simply press the pressure plate to disengage the clamping ring and pull out the pipe. This realizes convenient pipe connection and disassembly, greatly shortens the operation time, and improves the efficiency of use.

[0005] Preferably, the end of the pressure plate near the upper clamping ring is fixedly connected to the rotating rod. The upper and lower clamping rings are symmetrically arranged. By setting the pressure plate, when the pipe is connected, after the pressure plate is released, it can tilt under the elastic force generated by the torsion spring, thereby driving the upper clamping ring to move downward. Together with the lower clamping ring, it stably clamps the pipe and fixes the pipe. When the pipe is disassembled, pressing the pressure plate can make it rotate and tilt up, while driving the upper clamping ring to disengage from the lower clamping ring, releasing the clamping constraint on the pipe and facilitating quick removal of the pipe. Overall, the action of the pressure plate realizes the switching between pipe clamping and fixing and disassembly and unlocking, ensuring the convenience of connection and disassembly operations.

[0006] Preferably, a torsion spring is fitted onto the surface of the rocker arm. The two ends of the torsion spring are fixedly connected to the fixed plate and the pressure plate, respectively. By setting the torsion spring, when the pressure plate is released and loses its restraint, an elastic force is generated. This elastic force will squeeze the pressure plate and cause it to tilt, thereby driving the upper clamping ring to move downward and the vertical rod to slide downward. Finally, the upper clamping ring and the lower clamping ring cooperate to firmly clamp the pipe, providing a reliable clamping force for the pipe connection to ensure the connection stability. At the same time, in conjunction with the subsequent operation of pressing the pressure plate to disengage the clamping ring, the entire connection and disassembly process can be easily completed without complicated tools.

[0007] Preferably, there are two vertical rods, which are respectively set at both ends of the upper clamping ring. By setting the vertical rods, when the torsion spring generates elastic force to squeeze the pressure plate to tilt and drive the upper clamping ring to move downward, the vertical rods will slide downward synchronously, providing a guiding effect for the downward movement of the upper clamping ring, avoiding the upper clamping ring from shifting, and ensuring that it can be accurately aligned with the lower clamping ring and firmly clamp the pipe.

[0008] Preferably, the inner wall of the circular tube is provided with a sealing device, which includes a groove at one end of the pipe. A rubber ring is fixedly connected to the end of the pipe near the circular tube, and an insertion hole is provided on the surface of the rubber ring. A column is fixedly connected to the end of the circular tube near the rubber ring, and the column is inserted into the insertion hole on the surface of the rubber ring. An air cushion is fixedly connected to the inner wall of the circular tube, and a connecting pipe is fixedly connected to one end of the air cushion. The end of the connecting pipe away from the air cushion passes through the circular tube and is fixedly connected to an air bladder. By setting up a sealing device, there is no need to rely on cumbersome methods such as wrapping sealing tape and applying sealant. Simply turn the knob and squeeze the air bladder to make the air cushion expand and lock into the groove. Then, the air inlet pipe is blocked to complete the seal. The operation steps are simple, and the air cushion expansion seal can tightly fit the gap, effectively enhance the sealing effect, and prevent media leakage.

[0009] Preferably, an air inlet pipe is fixedly connected to the lower surface of the airbag. The inner wall of the air inlet pipe is threaded, and a knob is threadedly connected to the inner wall of the air inlet pipe. By setting the airbag, after the pipe is inserted into the round tube and the air inlet pipe is opened, air can be delivered into the air cushion by squeezing the airbag, providing an inflation source for the air cushion. This allows the air cushion to continuously expand and lock into the slot, thereby completing the seal in conjunction with the subsequent operation of sealing the air inlet pipe. Ultimately, this achieves the effect of tightly fitting the gap and preventing media leakage, eliminating the need for cumbersome methods such as wrapping sealing tape or applying sealant, thus simplifying the sealing operation steps.

[0010] Preferably, there are three columns arranged in a circumferential array along the rubber ring. By setting the columns, after the pipe is inserted into the round pipe and the rubber ring is squeezed and deformed to pass through the upper and lower clamping rings, the rubber ring is inserted to achieve initial positioning of the rubber ring and the pipe. This prevents the rubber ring and the pipe from shifting before the upper clamping ring is driven downward by the subsequent torsion spring. At the same time, it helps the rubber ring maintain a stable relative position with the pipe and the clamping ring, providing a positioning basis for the subsequent precise clamping of the pipe by the upper and lower clamping rings, ensuring that the clamping operation can be reliably completed, and thus ensuring the stability of the pipe connection.

[0011] Preferably, the upper surface of the circular tube is provided with a clearing device, which includes an inclined tube fixedly connected to the circular tube. A push rod is inserted into the inner wall of the inclined tube, and a handle is fixedly connected to one end of the push rod. A rubber pad is also fixedly connected to one end of the push rod. By providing the clearing device, when the circular tube is blocked, it is not necessary to disassemble the entire structure. Only the nut needs to be removed and the handle squeezed to push the push rod into the circular tube to clear the blockage. After clearing, the push rod can be pulled out and the nut screwed back to fix and reset the tube. The operation is simple and quick, which can solve the blockage problem in time, reduce the interruption of use caused by disassembly, and ensure the continuous and stable operation of the device.

[0012] Preferably, the rubber pad is in contact with the inclined tube, and the surface of the push rod is threaded. By setting the rubber pad, the push rod is squeezed to make the rubber pad insert into the inclined tube, which can tightly fit the gap between the inner wall of the inclined tube and the push rod, thus playing a sealing role and preventing the medium in the round tube from leaking from the inclined tube during the unblocking process.

[0013] Preferably, the push rod surface is threaded with a nut, which abuts against the rubber pad.

[0014] In summary, the technical effects and advantages of this invention are as follows: 1. In this invention, by setting up a connecting device, no complicated tools or precise alignment operations are required. Simply insert the pipe and the rubber ring will deform and cooperate with the column for initial positioning. After the pressure plate is released, the torsion spring can automatically drive the upper clamping ring downward to clamp the pipe with the lower clamping ring. When disassembling, simply press the pressure plate to make the clamping ring disengage and pull out the pipe. This makes pipe connection and disassembly convenient, greatly shortens the operation time, and improves the efficiency of use.

[0015] 2. In this invention, by setting a sealing device, there is no need to rely on cumbersome methods such as wrapping sealing tape and applying sealant. Simply turn the knob and squeeze the airbag to make the air cushion expand and get stuck in the slot. Then, the air inlet pipe is blocked to complete the seal. The operation steps are simple, and the air cushion expansion seal can fit tightly into the gap, effectively enhancing the sealing effect and preventing media leakage.

[0016] 3. In this invention, by setting up a dredging device, when the round pipe is blocked, there is no need to disassemble the overall structure. Only the nut needs to be removed and the handle squeezed to push the push rod into the round pipe to dredge the blockage. After dredging, the push rod can be pulled out and the nut screwed back to fix and reset. The operation is simple and quick, which can solve the blockage problem in time, reduce the interruption of use caused by disassembly, and ensure the continuous and stable operation of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a medical monitoring pressure sensor according to the present invention; Figure 2 This is a side view of the structure of a medical monitoring pressure sensor according to the present invention; Figure 3 This is a schematic diagram of the connection device structure of a medical monitoring pressure sensor according to the present invention; Figure 4 This is a cross-sectional structural diagram of a medical monitoring pressure sensor according to the present invention; Figure 5 This is a schematic diagram of the sealing device structure of a medical monitoring pressure sensor according to the present invention; Figure 6 This invention relates to a medical monitoring pressure sensor. Figure 5 A magnified structural diagram at point A; Figure 7This is a schematic diagram of the unblocking device structure of a medical monitoring pressure sensor according to the present invention; Figure 8 This invention relates to a medical monitoring pressure sensor. Figure 7 A magnified structural diagram at point B.

[0018] In the diagram: 1. Circular tube; 2. Sensor; 3. Pipeline; 4. Connecting device; 41. Upper clamping ring; 42. Lower clamping ring; 43. Bracket; 44. Vertical rod; 45. Rotating rod; 46. Pressure plate; 47. Fixing plate; 48. Rocker arm; 49. Torsion spring; 5. Sealing device; 51. Rubber ring; 52. Column; 53. Slot; 54. Air cushion; 55. Connecting pipe; 56. Airbag; 57. Air inlet pipe; 58. Knob; 6. Unblocking device; 61. Inclined tube; 62. Push rod; 63. Grip rod; 64. Nut; 65. Rubber pad. Detailed Implementation

[0019] 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, and 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.

[0020] refer to Figures 1-8 The medical monitoring pressure sensor shown includes a circular tube 1, a sensor 2, a pipe 3, and a connecting device 4. The sensor 2 is installed on the lower surface of the circular tube 1, the pipe 3 is located at one end of the circular tube 1, and the connecting device 4 is located at one end of the circular tube 1.

[0021] The connecting device 4 includes a lower clamping ring 42, which is disposed on the lower surface of the pipe 3. A bracket 43 is fixedly connected to the lower surface of the lower clamping ring 42. One end of the bracket 43 away from the lower clamping ring 42 is fixedly connected to the circular pipe 1. A through hole is opened on the upper surface of the lower clamping ring 42. A vertical rod 44 is slidably connected to the inner wall of the through hole of the lower clamping ring 42. An upper clamping ring 41 is fixedly connected to the upper surface of the vertical rod 44. A fixing plate 47 is fixedly connected to the upper surface of the circular pipe 1. A rocker arm 48 is fixedly connected to the surface of the fixing plate 47. The surface of the rocker arm 48 rotates. A pressure plate 46 is connected, and a rotating rod 45 is rotatably connected to the surface of the upper clamping ring 41. By setting the connecting device 4, no complicated tools or precise alignment operations are required. Simply insert the pipe 3 and the rubber ring 51 deforms to cooperate with the column 52 for initial positioning. After releasing the pressure plate 46, the torsion spring 49 can automatically drive the upper clamping ring 41 downward to clamp the pipe 3 with the lower clamping ring 42. When disassembling, simply press the pressure plate 46 to disengage the clamping ring and pull out the pipe 3. This makes the connection and disassembly of the pipe 3 convenient, greatly shortens the operation time, and improves the efficiency of use.

[0022] The pressure plate 46 is fixedly connected to the rotating rod 45 at one end near the upper clamping ring 41. The upper clamping ring 41 and the lower clamping ring 42 are symmetrically arranged. By setting the pressure plate 46, when the pipe 3 is connected, after the pressure plate 46 is released, it can tilt under the elastic force generated by the torsion spring 49, thereby driving the upper clamping ring 41 to move downward. Together with the lower clamping ring 42, it stably clamps the pipe 3, thus fixing the pipe 3. When the pipe 3 is disassembled, pressing the pressure plate 46 can make it rotate and tilt up, while driving the upper clamping ring 41 to disengage from the lower clamping ring 42, releasing the clamping constraint on the pipe 3, and making it easy to quickly pull out the pipe 3. Overall, the action of the pressure plate 46 realizes the switching between clamping and fixing and disassembly and unlocking of the pipe 3, ensuring the convenience of connection and disassembly operations.

[0023] The rocker arm 48 is fitted with a torsion spring 49. The two ends of the torsion spring 49 are fixedly connected to the fixed plate 47 and the pressure plate 46, respectively. By setting the torsion spring 49, when the pressure plate 46 is released and loses its restraint, an elastic force is generated. This elastic force will squeeze the pressure plate 46 to make it tilt, thereby driving the upper clamping ring 41 to move downward and the vertical rod 44 to slide downward. Finally, the upper clamping ring 41 and the lower clamping ring 42 cooperate to firmly clamp the pipe 3, providing a reliable clamping force for the connection of the pipe 3 to ensure the connection is stable. At the same time, in conjunction with the subsequent operation of pressing the pressure plate 46 to disengage the clamping ring, the entire connection and disassembly process can be completed conveniently without complicated tools.

[0024] There are two vertical rods 44, which are respectively set at both ends of the upper clamping ring 41. By setting the vertical rods 44, when the torsion spring 49 generates elastic force to squeeze the pressure plate 46 to tilt and drive the upper clamping ring 41 to move downward, the vertical rods 44 will slide downward synchronously, providing a guiding effect for the downward movement of the upper clamping ring 41, preventing the upper clamping ring 41 from deviating, ensuring that it can be accurately aligned with the lower clamping ring 42 and firmly clamp the pipe 3.

[0025] The inner wall of the circular pipe 1 is provided with a sealing device 5, which includes a groove 53. The groove 53 is located at one end of the pipe 3. A rubber ring 51 is fixedly connected to the end of the pipe 3 near the circular pipe 1. An insertion hole is provided on the surface of the rubber ring 51. A column 52 is fixedly connected to the end of the circular pipe 1 near the rubber ring 51. The column 52 is inserted into the insertion hole on the surface of the rubber ring 51. An air cushion 54 is fixedly connected to the inner wall of the circular pipe 1. A connecting pipe 55 is fixedly connected to one end of the air cushion 54. The end of the connecting pipe 55 away from the air cushion 54 passes through the circular pipe 1 and is fixedly connected to an air bladder 56. By setting the sealing device 5, there is no need to rely on cumbersome methods such as wrapping sealing tape and applying sealant. Simply turn the knob 58 and squeeze the air bladder 56 to make the air cushion 54 expand and lock in the groove 53. Then, the air inlet pipe 57 is blocked to complete the seal. The operation steps are simple, and the expansion seal of the air cushion 54 can tightly fit the gap, effectively enhance the sealing effect, and prevent the medium from leaking.

[0026] The airbag 56 has an air inlet pipe 57 fixedly connected to its lower surface. The inner wall of the air inlet pipe 57 is threaded, and a knob 58 is threadedly connected to the inner wall of the air inlet pipe 57. By setting the airbag 56, after the pipe 3 is inserted into the round pipe 1 and the air inlet pipe 57 is opened, the airbag 56 can be squeezed to deliver air into the air cushion 54, providing an inflation source for the air cushion 54. This allows the air cushion 54 to continuously expand and lock into the slot 53, thereby completing the seal in conjunction with the subsequent sealing operation of the air inlet pipe 57. Ultimately, this achieves the effect of tightly fitting the gap and preventing media leakage, eliminating the need for cumbersome methods such as wrapping sealing tape or applying sealant, thus simplifying the sealing operation steps.

[0027] There are three columns 52, which are arranged in a circular array along the rubber ring 51. By setting the columns 52, after the pipe 3 is inserted into the round pipe 1 and the rubber ring 51 is squeezed and deformed to pass through the upper clamping ring 41 and the lower clamping ring 42, the rubber ring 51 is inserted to achieve the initial positioning of the rubber ring 51 and the pipe 3. This prevents the rubber ring 51 and the pipe 3 from shifting before the upper clamping ring 41 is driven downward by the torsion spring 49 to clamp them. At the same time, it helps the rubber ring 51 maintain a stable relative position with the pipe 3 and the clamping ring, providing a positioning basis for the subsequent precise clamping of the pipe 3 by the upper clamping ring 41 and the lower clamping ring 42, ensuring that the clamping operation can be reliably completed, and thus ensuring the stability of the pipe 3 connection.

[0028] The upper surface of the circular tube 1 is equipped with a clearing device 6, which includes an inclined tube 61 fixedly connected to the circular tube 1. A push rod 62 is inserted into the inner wall of the inclined tube 61. One end of the push rod 62 is fixedly connected to a handle 63, and the other end of the push rod 62 is fixedly connected to a rubber pad 65. By setting up the clearing device 6, when the circular tube 1 is blocked, it is not necessary to disassemble the entire structure. Only the nut 64 needs to be removed and the handle 63 needs to be squeezed to push the push rod 62 into the circular tube 1 to clear the blockage. After clearing, the push rod 62 can be pulled out and the nut 64 can be screwed back to fix and reset. The operation is simple and quick, which can solve the blockage problem in time, reduce the interruption of use caused by disassembly, and ensure the continuous and stable operation of the device.

[0029] The rubber pad 65 contacts the inclined tube 61, and the push rod 62 has threads on its surface. By setting the rubber pad 65, the push rod 63 is squeezed to make the rubber pad 65 insert into the inclined tube 61, which can tightly fit the gap between the inner wall of the inclined tube 61 and the push rod 62, thus playing a sealing role and preventing the medium in the round tube 1 from leaking from the inclined tube 61 during the unblocking process.

[0030] The push rod 62 has a nut 64 threadedly connected to its surface, and the nut 64 abuts against the rubber pad 65.

[0031] The working principle of this invention is as follows: By setting up the connecting device 4, when the pipe 3 is connected, the pipe 3 is inserted into the round pipe 1. Since the rubber ring 51 is made of soft material, it is squeezed and deformed through when it contacts the upper clamping ring 41 and the lower clamping ring 42. Then the column 52 is inserted into the rubber ring 51. Then the pressure plate 46 is released, the pressure plate 46 is unrestrained, and the torsion spring 49 generates elastic force to squeeze the pressure plate 46 to tilt. Then, the upper clamping ring 41 moves downward, the vertical rod 44 slides downward, and clamps the pipe 3 between the upper clamping ring 41 and the lower clamping ring 42. When it is necessary to remove the pipe 3, press the pressure plate 46, the pressure plate 46 rotates and tilts up, and drives the upper clamping ring 41 to disengage from the lower clamping ring 42. At this time, the pipe 3 can be pulled out. By setting the sealing device 5, after the pipe 3 is inserted into the round pipe 1, the knob 58 is turned to open the air inlet pipe 57, and then the air bag 56 is squeezed. The air bag 56 brings air into the air cushion 54, and then the air cushion 54 expands continuously and gets stuck in the slot 53. Then, the knob 58 is turned to seal the air inlet pipe 57, and the seal is completed. By setting up the unblocking device 6, when the round pipe 1 is blocked by foreign objects, turn the nut 64, the nut 64 disengages from the rubber pad 65, then grasp the handle 63 and squeeze the handle 63, the rubber pad 65 is inserted into the inclined pipe 61, and the push rod 62 also enters the round pipe 1 and unblocks the part of the round pipe 1. After use, pull out the push rod 62 and turn the nut 64 until the nut 64 abuts and fixes the rubber pad 65 against the inclined pipe 61.

[0032] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A medical monitoring pressure sensor comprising a circular tube (1), a sensor (2), a duct (3) and a connection device (4), characterized in that: The sensor (2) is installed on the lower surface of the circular tube (1). The pipe (3) is located at one end of the circular tube (1). The connecting device (4) is located at one end of the circular tube (1). The connecting device (4) includes a lower clamping ring (42). The lower clamping ring (42) is located on the lower surface of the pipe (3). A bracket (43) is fixedly connected to the lower surface of the lower clamping ring (42). The end of the bracket (43) away from the lower clamping ring (42) is fixedly connected to the circular tube (1). A through hole is opened on the upper surface of the lower clamping ring (42). A vertical rod (44) is slidably connected to the inner wall of the through hole of the lower clamping ring (42). An upper clamping ring (41) is fixedly connected to the upper surface of the vertical rod (44). A fixing plate (47) is fixedly connected to the upper surface of the circular tube (1). A rocker arm (48) is fixedly connected to the surface of the fixing plate (47). A pressure plate (46) is rotatably connected to the surface of the rocker arm (48). A pressure plate (46) is rotatably connected to the surface of the upper clamping ring (41). A rotating rod (45) is connected to the rocker arm (48), and a torsion spring (49) is fitted on the surface of the rocker arm (48). The two ends of the torsion spring (49) are fixedly connected to the fixing plate (47) and the pressure plate (46) respectively. A sealing device (5) is provided on the inner wall of the round tube (1). The sealing device (5) includes a slot (53). The slot (53) is opened at one end of the pipe (3). A rubber ring (51) is fixedly connected to one end of the pipe (3) near the round tube (1). An insertion hole is opened on the surface of the rubber ring (51). A column (52) is fixedly connected to one end of the round tube (1) near the rubber ring (51). The column (52) is inserted into the insertion hole on the surface of the rubber ring (51). An air cushion (54) is fixedly connected to the inner wall of the round tube (1). A connecting pipe (55) is fixedly connected to one end of the air cushion (54). The end of the connecting pipe (55) away from the air cushion (54) passes through the round tube (1) and is fixedly connected to an air bag (56).

2. A medical monitoring pressure sensor according to claim 1, characterized in that: The pressure plate (46) is fixedly connected to the rotating rod (45) at one end near the upper clamping ring (41), and the upper clamping ring (41) and the lower clamping ring (42) are symmetrically arranged.

3. The medical monitoring pressure sensor of claim 1, wherein: There are two vertical rods (44), which are respectively set at both ends of the upper clamping ring (41).

4. The medical monitoring pressure sensor of claim 1, wherein: An air inlet pipe (57) is fixedly connected to the lower surface of the airbag (56). The inner wall of the air inlet pipe (57) is threaded, and a knob (58) is threaded to the inner wall of the air inlet pipe (57).

5. A medical monitoring pressure sensor according to claim 4, wherein: There are three columns (52), which are arranged in a circular array along the rubber ring (51).

6. The medical monitoring pressure sensor of claim 1, wherein: The upper surface of the round tube (1) is provided with a dredging device (6). The dredging device (6) includes an inclined tube (61), which is fixedly connected to the round tube (1). A push rod (62) is inserted into the inner wall of the inclined tube (61). A handle (63) is fixedly connected to one end of the push rod (62), and a rubber pad (65) is fixedly connected to one end of the push rod (62).

7. A medical monitoring pressure sensor according to claim 6, wherein: The rubber pad (65) contacts the inclined tube (61), and the surface of the push rod (62) is threaded.

8. A medical monitoring pressure sensor according to claim 7, wherein: The push rod (62) is externally threaded with a nut (64), and the nut (64) abuts against a rubber pad (65).

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