High-pressure injection blood vessel state multi-parameter monitor

Abstract

The utility model relates to a high-pressure injection blood vessel state multi-parameter monitor which is used for being connected with a high-pressure injector and detecting the state of a patient during high-pressure injection. The folding bracket is connected with the mounting rod; the mounting plate is connected with one end of the folding bracket; the near-infrared monitoring imaging assembly is mounted on the mounting plate and is used for forming a blood vessel distribution profile diagram and a seepage diagram in an injection area of the patient; the three-dimensional seepage mass monitoring component is mounted on the mounting plate and is used for monitoring the seepage state of an injection area of a patient. Compared with the prior art, the high-pressure injection state detection device has the advantages of greatly improving the accuracy of high-pressure injection state detection of a patient and the like.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a high-pressure injection vascular status multi-parameter monitoring instrument. Background Technology

[0002] During the use of medical high-pressure injectors, the pressure sensor data at the injector end alone cannot accurately reflect the actual situation of different examinations and patients, which may lead to misjudgment or delay in the assessment of swelling caused by missed needles. This can result in misjudgment and cessation of the examination (causing the failure of the entire enhanced examination), or a large amount of medication seeping into and accumulating in the subcutaneous tissue space due to missed needles, causing severe swelling or even ulceration, ultimately causing serious trouble for patients and medical work.

[0003] Iodine contrast agent extravasation refers to the leakage of contrast agent into peripheral tissues after intravenous injection due to various reasons. This alteration of the osmotic pressure gradient in the interstitial space causes intracellular water to shift into the interstitial space, resulting in a series of pathophysiological changes. Because iodine contrast agents are administered via peripheral intravenous injection using a high-pressure injector, extravasation is highly irritating to subcutaneous tissues. Swelling can compress blood vessels and nerves, causing circulatory disorders and pain. In severe cases, it can lead to serious complications such as tissue necrosis, ulceration, and interfascial syndrome, affecting limb function, increasing patient suffering, and impacting examination results and diagnosis.

[0004] Contrast agents are increasingly used in routine contrast-enhanced CT and MR scans, including vascular imaging and perfusion scans. Typically, when performing contrast-enhanced scans, medical staff inject the contrast agent using a high-pressure injector in an operating room adjacent to the patient's examination room, separated by radiation-shielding lead glass. Nurses or technicians can only observe the patient from a distance and cannot monitor the injection process. Usually, patients are informed beforehand to raise their hand or cry out if they experience pain. The nurse or technician then observes for these signs and, upon detecting any abnormality, immediately activates the emergency stop button on the high-pressure injector to terminate the injection. This requires the nurse or technician to maintain constant, highly focused attention, but by the time abnormalities are detected, significant extravasation may have already occurred. Although the high-pressure injector's interface monitors for abnormal pressure fluctuations, allowing for immediate stoppage if abnormal waveforms appear, the situation described above indicates substantial extravasation, with potentially serious consequences and a significant risk of medical malpractice. Meanwhile, common complications during contrast agent injection in CT or MR scans manifest as localized wheal-like swelling at the puncture site; more severe cases present with swelling at the puncture site, causing the forearm to become swollen; in severe cases, swelling can affect the entire upper limb soft tissue, and in addition to soft tissue swelling, blisters, tissue ulcers, and even necrosis may occur on the skin. Therefore, it is crucial to detect extravasation as early and effectively as possible to facilitate timely cessation of the procedure, control extravasation in its early stages, and minimize the amount of contrast agent extravasated.

[0005] On the other hand, current pressure monitoring is limited to detecting vascular pressure. Whether it's pressure detection at the high-pressure injector end or the later-added proximal bandage pressure sensor at the injection site, abnormal and false pressure readings often occur due to individual differences (blood vessel thickness and elasticity), differences in injection sites (such as excessive pressure when the elbow joint is fully engaged), and the examinee's condition (such as muscle tension compressing blood vessels due to tension during injection). Furthermore, the blood vessel pressure itself changes during high-pressure injection, so only a general "normal pressure range" can be set to balance real-time pressure changes with individual differences that could lead to false alarms or delayed detection of leakage. This can cause medical technicians to urgently stop the examination, resulting in the failure of the entire contrast-enhanced examination, repeated examinations leading to further financial losses, wasted time, and physical pain.

[0006] The two problems mentioned above have not yet been well resolved. This fundamentally determines that simply improving the accuracy of pressure monitoring of vascular status cannot achieve an ideal result. Utility Model Content

[0007] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a multi-parameter monitoring instrument for high-pressure injection vessel status, which greatly improves the accuracy of detecting the patient's high-pressure injection status.

[0008] The objective of this utility model can be achieved through the following technical solutions:

[0009] A high-pressure injection vascular status multi-parameter monitor, used to connect to a high-pressure injector and detect the patient's status during high-pressure injection, the multi-parameter monitor comprising:

[0010] Mounting rod;

[0011] The folding bracket connected to the mounting rod;

[0012] Mounting plate connected to one end of the folding bracket;

[0013] A near-infrared monitoring imaging component mounted on the mounting plate and used to form a vascular distribution contour map and an exudate map in the patient's injection area;

[0014] And an exudate mass three-dimensional monitoring component mounted on the mounting plate and used to monitor the exudate status of the patient's injection area.

[0015] Furthermore, the high-pressure injector is a conventional instrument in the field, and therefore will not be described in detail.

[0016] Furthermore, the mounting rod is a telescopic mounting rod.

[0017] Furthermore, the folding bracket includes:

[0018] The first connecting rod is rotatably connected to the mounting rod;

[0019] A second connecting rod that is rotatably connected to the first connecting rod;

[0020] A third connecting rod is rotatably connected to the second connecting rod, and the mounting plate is detachably and fixedly connected to the third connecting rod. Through the folding bracket, the near-infrared monitoring imaging component and the effusion mass stereoscopic monitoring component can be telescopically moved to any position without affecting the operation of the CT (computed tomography) machine or the patient's getting in and out of bed.

[0021] Furthermore, the first connecting rod and the mounting rod are rotatably connected via a first rotating shaft;

[0022] The first connecting rod and the second connecting rod are rotatably connected via a second rotating shaft;

[0023] The second connecting rod is rotatably connected to the second connecting rod via a third rotating shaft;

[0024] The first rotating shaft is a damping rotating shaft, or is wrapped with a damping plate on the outside, or is provided with a damping spring on the outside, which can easily rotate the first connecting rod, and the connection will not rotate naturally;

[0025] The second rotating shaft is a damping rotating shaft, or is wrapped with a damping plate on the outside, or is provided with a damping spring on the outside, which can easily rotate the first connecting rod and the second connecting rod, and the connection will not rotate naturally;

[0026] The third rotating shaft is a damping rotating shaft, or is wrapped with a damping plate on the outside, or is provided with a damping spring on the outside, which can easily rotate the second connecting rod and the third connecting rod, and the connection will not rotate naturally.

[0027] Furthermore, the mounting plate is provided with an interface for connecting to the third connecting rod.

[0028] Furthermore, the bottom of the mounting rod is provided with threads for connecting to an MR (magnetic resonance) bed or for threaded connection to a counterweight base.

[0029] Furthermore, the MR bed is provided with mounting holes for mounting the mounting rod, or for compatibility with certain patients who require intravenous saline.

[0030] Furthermore, the near-infrared monitoring imaging component includes:

[0031] A near-infrared light emitter mounted on the mounting plate for illuminating the patient's injection area and reflecting near-infrared signals;

[0032] A near-infrared light receiver electrically connected to the near-infrared light emitter and used to receive the reflected signal from the near-infrared light emitter;

[0033] A processor electrically connected to the near-infrared light receiver, which processes the received near-infrared signals and outputs an image.

[0034] And a projector electrically connected to the processor and projecting its output image onto the surface of the patient's injection area.

[0035] Furthermore, the near-infrared incident light wavelength of the near-infrared light emitter is 720~1100nm, and the commonly used near-infrared incident light wavelengths are 760nm, 850nm or 940nm, which can penetrate the surface of the skin well.

[0036] Furthermore, the infrared receiver in the near-infrared monitoring and imaging assembly also includes an infrared filter to filter out natural light interference, ensuring that the device can operate normally in the presence of natural light.

[0037] Furthermore, the working principle of the near-infrared monitoring and imaging component is as follows: the near-infrared light emitter emits harmless near-infrared incident light waves to irradiate the patient's injection area. The maximum penetration depth of near-infrared light in human tissue can reach approximately 10mm. This penetration depth is affected by the characteristics of the skin tissue itself, such as subcutaneous tissue composition, water content, and degree of pigmentation. The subcutaneous venous network of our limbs is typically about 2-3mm deep, at which depth near-infrared light can easily penetrate and form a good infrared echo signal. Based on the absorption and scattering characteristics of near-infrared light in human tissue, hemoglobin in the blood (especially reduced hemoglobin), iodine-containing contrast agents used in CT scans, and gadolinium-containing contrast agents used in MRI have a higher absorption rate of near-infrared light compared to normal human skin, muscles, and other soft tissues. When the instrument emits near-infrared light that penetrates the skin, it is absorbed more when it encounters hemoglobin (or contrast agent) in blood vessels. The absorption and scattering of light by surrounding tissues differs from that at blood vessels. The reflected near-infrared signal is received by the near-infrared light receiver and processed by the processor. The resulting near-infrared signal is then projected directly onto the injection area surface via a projector, forming an image with clear contrast between the blood vessels and other skin areas. This allows for real-time and clear display of the vascular network. Using this principle, the maximum blood vessel detection depth can reach several millimeters. For real-time detection of the injection area with a high-pressure injector, the detection depth is sufficient to effectively ensure image quality.

[0038] Furthermore, the three-dimensional monitoring component for exudate masses is a binocular structured light camera that monitors the size of exudate masses in the patient's injection area. The binocular structured light camera is mounted on one side of the near-infrared monitoring imaging component. When contrast agent extravasates, an exudate mass appears in the image. This mass appears as a black spot in the infrared imaging image, differing in color from normal tissue. The binocular structured light camera can accurately identify it, determine its coordinate position, and transmit the coordinate signal to the controller. The controller then detects the change in coordinate position before and after injection and measures its size. The appearance of the exudate mass is due to the rupture of the blood vessel wall when contrast agent extravasates. The ruptured area absorbs more near-infrared light due to the concentration of contrast agent and blood, forming a "black spot."

[0039] Furthermore, the binocular optical camera system comprises two units, positioned on either side of the near-infrared monitoring and imaging component, creating a strong stereoscopic depth effect. The near-infrared light emitter and receiver are positioned centrally to vertically illuminate the injection area. The projector is located to one side of the near-infrared light receiver to prevent distortion due to tilted projection. During use, the near-infrared monitoring and imaging component is pulled approximately 25-30 cm directly above the injection area using the mounting rod and folding bracket, ensuring the near-infrared light has the necessary emission, penetration, reflection, and reception capabilities. The projector's focal length is also set within the 25-30 cm range, preventing the projected image from becoming out of focus or distorted.

[0040] Furthermore, the mounting plate is provided with a battery slot for placing the battery, and the cover can be opened for battery replacement.

[0041] Furthermore, the multi-parameter monitor also includes a controller electrically connected to the high-pressure injector, the near-infrared monitoring imaging component, and the three-dimensional monitoring component for the effusion mass.

[0042] Furthermore, the controller is electrically connected to an alarm, which is mounted on the mounting plate 4;

[0043] The controller is electrically connected to a pressure detector used to detect the injection pressure of the high-pressure injector, and the pressure detector is placed on the high-pressure injector. The pressure sensor has accurate and sensitive pressure detection capabilities, providing real-time pressure values ​​within the output tubing of the high-pressure injector during the current injection. Under normal circumstances, the injection pressure within the high-pressure injector is 0-1200 psi. Depending on the set flow rate and vascular condition, the injection pressure for peripheral vein injection in conventional CT and MRI enhancement is generally below 200 psi. The values ​​read by the pressure sensor can be displayed in real time to alert the operator.

[0044] Furthermore, the high-pressure injector includes a housing, a syringe, and an infusion tubing. The pressure detector is located at one end of the housing near the syringe, and a connecting tube connected to the pressure detector is installed on one side of the infusion tubing.

[0045] Furthermore, the three-dimensional monitoring component for the exudate mass monitors the diameter of the image projected by the near-infrared monitoring imaging component, and the pressure detector monitors the injection pressure of the high-pressure injector.

[0046] The three-dimensional monitoring component for exudate masses detects the coordinates of the exudate mass in the patient's injection area and transmits the signal to the controller. When the change in the coordinates of the exudate mass, Δx, is less than 0.5cm, the controller controls the alarm to sound an alarm.

[0047] The three-dimensional monitoring component for the exudate mass monitors the coordinates of the exudate mass in the patient's injection area, and the pressure detector monitors the injection pressure P of the high-pressure injector. The signal is transmitted to the controller. When the change in the coordinates of the exudate mass is 0.5 ≤ Δx < 1 cm and the injection pressure P < 150 psi, the controller controls the alarm to sound an alarm.

[0048] The three-dimensional monitoring component for the effusion mass detects the coordinates of the effusion mass in the patient's injection area, and the pressure detector detects the injection pressure P of the high-pressure injector. The signal is transmitted to the controller. When the change in the coordinates of the effusion mass is 0.5 ≤ Δx < 1 cm and the injection pressure is 150 ≤ P < 250 psi, the controller controls the alarm to sound an alarm and simultaneously controls the injection pressure of the high-pressure injector to be < 100 psi. After 2-5 seconds, the injection pressure of the high-pressure injector is restored.

[0049] The three-dimensional monitoring component for the exudate mass detects the coordinates of the exudate mass in the patient's injection area, and the pressure detector detects the injection pressure P of the high-pressure injector. The signal is transmitted to the controller. When the change in the coordinates of the exudate mass is 1≤Δx<2cm, the controller controls the alarm to sound an alarm and simultaneously controls the injection pressure P of the high-pressure injector to be 100psi. After 2~5s, the injection pressure of the high-pressure injector is restored.

[0050] The three-dimensional monitoring component for the effusion mass detects the coordinates of the effusion mass in the patient's injection area, and the pressure detector detects the injection pressure P of the high-pressure injector. The signal is transmitted to the controller. When the change in the coordinates of the effusion mass Δx ≥ 2 cm or the injection pressure P ≥ 250 psi, the controller controls the alarm to sound and simultaneously controls the high-pressure injector to stop injection. That is, the injection situation is usually determined jointly by the three-dimensional monitoring component for the effusion mass and the pressure sensor. However, when the injection pressure is too high, the injection procedure can be terminated independently to ensure the safety of personnel and equipment.

[0051] Furthermore, if the injection pressure exceeds 250 psi for 2 seconds or more, the controller will activate the alarm and simultaneously stop the high-pressure injector. The injection procedure will only be restarted after the operator has checked that the patient and equipment are functioning normally, ensuring patient safety and that the high-pressure injection flow rate is maintained as required. Causes of excessive injection pressure include extravasation and swelling, failure to open the indwelling needle switch, and bending of the flexible indwelling needle at the insertion site.

[0052] Furthermore, the controller is a PLC controller. Furthermore, the implementation principle of this multi-parameter monitor mainly includes the following aspects:

[0053] Image acquisition and processing: The near-infrared monitoring imaging component is equipped with a corresponding processor, which can acquire image data of the monitored area at a certain frame rate and process the acquired images, such as performing noise reduction, contrast enhancement and other optimization operations, to improve image quality and the accuracy of subsequent analysis.

[0054] Exudate mass detection: The near-infrared monitoring imaging component detects the distribution of blood vessels and the exudate mass. The three-dimensional monitoring component of the exudate mass detects the change in the coordinate position of the exudate mass and transmits the signal to the controller. The coordinate positions before and after injection are compared to obtain the size of the exudate mass, which in turn controls the alarm to sound, the high-pressure injector to reduce the injection pressure, or to stop the injection.

[0055] Furthermore, the binocular structured light camera employs depth-sensing stereo recognition technology and possesses structured light stereo imaging capabilities. Through two sets of image acquisition and detection, image preprocessing, matching, and recognition steps, it identifies and responds to deformations in the monitored area. The resulting change in the coordinates of the seepage mass is a stereo deformation, thus ensuring that an alarm is triggered only when a stereo deformation appears in the image, effectively filtering out false alarms caused by slight limb tremors, changes in lighting, etc.

[0056] Furthermore, binocular structured light cameras employ intelligent video analysis algorithms to detect object deformation in the image. A common approach is for the internal chip to compare the current stereoscopic frame with the previous stereoscopic frame; if the stereoscopic image changes, it triggers corresponding feedback.

[0057] Furthermore, the multi-parameter monitor also includes a display light assembly located on the mounting plate. The display light assembly is located on the opposite side of the near-infrared monitoring imaging assembly and the three-dimensional monitoring assembly for the effusion mass. The display light assembly includes a power indicator light, a signal indicator light, an alarm light, and a power indicator light. When the size of the detected effusion mass is within different ranges, the alarm light displays different colors.

[0058] Furthermore, the multi-parameter monitor also includes a display electrically connected to the high-pressure injector, near-infrared imaging component, and effusion mass stereoscopic monitoring component, providing real-time infrared images from the near-infrared imaging component and monitoring images from the effusion mass stereoscopic monitoring component, allowing the operator to make intuitive judgments and take timely measures based on the patient's condition when the alarm sounds. Even further, the multi-parameter monitor also includes a remote monitor electrically connected to the display, located in the operating room or other area, while the multi-parameter monitor is not located in the same room.

[0059] Furthermore, the mounting plate is also equipped with a voice monitoring and communication component, which is connected to a remote monitor for remote monitoring of the patient's condition.

[0060] Furthermore, the multi-parameter monitor is connected to a recording device via any suitable means known in the art, so that the signals measured by each detector are recorded and stored separately, for example, the multi-parameter monitor can be connected to a computer component via a fiber optic cable.

[0061] Furthermore, all components of this multi-parameter monitor are anti-magnetic components, designed for use in magnetic resonance chambers, thus avoiding artifacts caused by changes in the magnetic field due to opening and closing magnetic resonance doors.

[0062] Compared with the prior art, the present invention has the following advantages:

[0063] (1) The high-pressure injection vascular status multi-parameter monitoring instrument provided by this utility model can display the vascular status in real time and perform multi-parameter monitoring and analysis. The injection status detected by the high-pressure injector, the vascular distribution contour map and exudation map detected by the near-infrared monitoring imaging component, and the vascular change status and exudation status detected by the exudation mass three-dimensional monitoring component can be analyzed in a comprehensive manner. Doctors can make the most accurate judgment based on the actual examination requirements and the patient's reaction (such as pain reaction sound), which greatly improves the accuracy of the patient's high-pressure injection status detection, thereby minimizing false alarms and more timely and accurate detection of abnormal swelling of the injection vessel, thus ensuring patient safety and reducing unnecessary medical accidents.

[0064] (2) The high-pressure injection vessel status multi-parameter monitoring instrument provided by this utility model, by setting up a controller and an alarm, combined with a near-infrared monitoring imaging component, an exudate mass three-dimensional monitoring component, and a pressure detector, realizes alarm reminders, reduces injection pressure, reduces flow rate, or stops injection by monitoring the deformation of the vessel and the pressure value of the syringe. This allows the high-pressure syringe and operator to react promptly when the patient experiences contrast agent extravasation, greatly improving the accuracy of high-pressure injection status detection, avoiding large-scale extravasation of contrast agent due to untimely operator response, and reducing the occurrence of medical accidents.

[0065] (3) The near-infrared monitoring imaging component of this utility model is small in size and is connected to the mounting rod by a foldable bracket. It can be directly inserted into the mounting hole of the MR bed by thread, or placed on the MR bed or other places by a counterweight base. It is convenient and quick to use and will not increase the workload of the inspection.

[0066] (4) The binocular structured light camera of this utility model has the function of structured light stereo imaging. The change in coordinates of the effusion block obtained by it is a stereo deformation. An alarm will be triggered only when a stereo deformation appears in the picture. It can effectively filter out false alarms caused by slight limb tremors, changes in light, etc., and improve the alarm accuracy.

[0067] (5) The vascular imaging component of this utility model provides real-time imaging, is radiation-free, is not easily interfered with, and provides very intuitive and accurate dynamic detection.

[0068] (6) The parameter information of this utility model can be transmitted to the remote monitor in the operating room to remotely and dynamically detect the blood vessel status. The operating room can see a variety of data at a glance, and medical technicians do not have to keep running in and out to check the injection needle, which improves the efficiency of the examination work. Attached Figure Description

[0069] Figure 1 This is a schematic diagram of the high-pressure injector shown in this utility model;

[0070] Figure 2 This is a schematic diagram of the high-pressure injection vessel status multi-parameter monitoring instrument shown in Example 1;

[0071] Figure 3 This is a schematic diagram of the near-infrared monitoring imaging component and the three-dimensional monitoring component for the seepage mass shown in Example 1;

[0072] Figure 4 This is a schematic diagram of the near-infrared monitoring and imaging component shown in Example 1;

[0073] Figure 5 This is a schematic diagram showing the location of the interface on the mounting plate as shown in Example 1;

[0074] Figure 6 This is a schematic diagram of the mounting rod with counterweight base shown in Example 1;

[0075] Figure 7 This is a side view of the MR bed shown in Example 1;

[0076] Figure 8 This is a top view of the MR bed shown in Example 1;

[0077] Figure 9 This is an infrared imaging projection diagram of the blood vessels and exudate mass in the injection area shown in Example 1, where A represents the injection area, B represents the blood vessel, and C represents the exudate mass.

[0078] Figure 10 This is a schematic diagram of the high-pressure injection vessel status multi-parameter monitoring instrument shown in Example 2;

[0079] Figure 11 This is a schematic diagram of the display lamp assembly shown in Embodiment 2;

[0080] Figure 12 This is a schematic diagram of the high-pressure injection vessel status multi-parameter monitoring instrument shown in Example 2;

[0081] Figure 13This is a schematic diagram of the battery compartment shown in Example 3;

[0082] Figure 14 This is a schematic diagram of the high-pressure injection vascular status multi-parameter monitoring instrument shown in Example 3.

[0083] Explanation of markings in the diagram:

[0084] 1-High-pressure injector, 11-Shell, 12-Syringe, 13-Infusion tubing;

[0085] 2-Mounting rod, 21-Thread, 22-Counterweight base;

[0086] 3-Folding bracket, 31-First connecting rod, 32-Second connecting rod, 33-Third connecting rod, 34-First pivot, 35-Second pivot, 36-Third pivot;

[0087] 4-Mounting plate, 41-Battery slot, 42-Interface, 43-Indicator light assembly, 431-Power indicator light, 432-Signal indicator light, 433-Alarm light, 434-Battery indicator light;

[0088] 5-Near-infrared monitoring and imaging component, 51-Near-infrared light emitter, 52-Near-infrared light receiver, 53-Processor, 54-Projector;

[0089] 6-Three-dimensional monitoring component for exudate masses; 61-Binocular structured light camera;

[0090] 7-MR bed, 71-mounting hole;

[0091] 8-Controller, 81-Display, 82-Remote Monitor;

[0092] 9-Alarm;

[0093] 10 - Pressure detector, 101 - Connecting pipe. Detailed Implementation

[0094] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The embodiments are implemented based on the technical solution of the present invention, providing detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments. In the following embodiments or examples, unless otherwise specified, the functional components or structures are conventional components or structures used in the art to achieve the corresponding functions.

[0095] It should be noted that in the description of this utility model, the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0096] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0097] A high-pressure injection vascular status multi-parameter monitor is used to connect to a high-pressure injector 1 and detect the patient's status during high-pressure injection. The multi-parameter monitor includes:

[0098] Mounting rod 2;

[0099] The folding bracket 3 is connected to the mounting rod 2;

[0100] Mounting plate 4 is connected to one end of the folding bracket 3;

[0101] Near-infrared monitoring and imaging component 5, which is mounted on the mounting plate 4 and used to form a vascular distribution contour map and an exudation map in the patient's injection area;

[0102] And an exudate mass three-dimensional monitoring component 6, which is installed on the mounting plate 4 and used to monitor the exudate status of the patient's injection area.

[0103] In some specific embodiments, the high-pressure injector 1 is a conventional instrument in the art, and therefore will not be described in detail.

[0104] In some specific embodiments, the mounting rod 2 is a telescopic mounting rod.

[0105] In some specific embodiments, the folding bracket 3 includes:

[0106] The first connecting rod 31 is rotatably connected to the mounting rod 2;

[0107] A second connecting rod 32 that is rotatably connected to the first connecting rod 31;

[0108] A third connecting rod 33 is rotatably connected to the second connecting rod 32, and the mounting plate 4 is detachably and fixedly connected to the third connecting rod 33.

[0109] In some specific embodiments, the first connecting rod 31 and the mounting rod 2 are rotatably connected via the first rotating shaft 34;

[0110] The first connecting rod 31 and the second connecting rod 32 are rotatably connected via the second rotating shaft 35;

[0111] The second connecting rod 32 is rotatably connected to the second connecting rod 32 via the third rotating shaft 36;

[0112] The first rotating shaft 34 is a damping rotating shaft, or is wrapped with a damping plate on the outside, or is provided with a damping spring on the outside, which can easily rotate the first connecting rod, and the connection will not rotate naturally;

[0113] The second rotating shaft 35 is a damping rotating shaft, or is wrapped with a damping plate on the outside, or is provided with a damping spring on the outside, which can easily rotate the first connecting rod 31 and the second connecting rod 32, and the connection will not rotate naturally.

[0114] The third rotating shaft 36 is a damping rotating shaft, or is wrapped with a damping plate on the outside, or is provided with a damping spring on the outside, which can easily rotate the second connecting rod 32 and the third connecting rod 33, and the connection will not rotate naturally.

[0115] In some specific embodiments, the bottom of the mounting rod 2 is provided with a thread 21 for connecting to the MR bed 7 or for threaded connection to the counterweight base 22.

[0116] In some specific embodiments, the mounting plate 4 is provided with an interface 42 that connects to the third connecting rod 33.

[0117] In some specific embodiments, the MR bed 7 is provided with mounting holes 71.

[0118] In some specific embodiments, the near-infrared monitoring imaging component 5 includes:

[0119] Near-infrared light emitter 51, mounted on the mounting plate 4, for irradiating the patient's injection area and reflecting near-infrared signals;

[0120] A near-infrared light receiver 52 is electrically connected to the near-infrared light emitter 51 and is used to receive the reflected signal from the near-infrared light emitter 51;

[0121] A processor 53 is electrically connected to the near-infrared light receiver 52, processes the near-infrared signals it receives, and outputs an image.

[0122] And a projector 54 electrically connected to the processor 53 and projecting its output image onto the surface of the patient's injection area.

[0123] In some specific embodiments, the near-infrared incident light wavelength of the near-infrared light emitter 51 is 720~1100nm, and commonly used near-infrared incident light wavelengths are 760nm, 850nm or 940nm, which can penetrate the surface of the skin well.

[0124] In some specific embodiments, the near-infrared monitoring and imaging component 5 further includes an infrared filter to filter out natural light interference and ensure that the device can operate normally in the presence of natural light.

[0125] In some specific embodiments, the working principle of the near-infrared monitoring and imaging component 5 is as follows: the near-infrared light emitter 51 emits harmless near-infrared incident light waves to irradiate the patient's injection area, reaching a subcutaneous depth of about 2-3 mm and forming a good infrared echo signal. This superficial venous network is often the preferred puncture site for high-pressure injections. The hemoglobin in the blood can absorb near-infrared light. When the near-infrared light emitter 51 irradiates above the skin, the near-infrared signal reflected back from the surrounding tissue is significantly different due to the color of the blood vessels, the presence of extravasated contrast agent (if there is extravasation), and the blood vessels. This reflected near-infrared signal is received by the near-infrared light receiver 52 and processed by the processor 53. The resulting near-infrared signal is directly projected onto the surface of the injection area through the projector 54, forming an image with clear contrast between the blood vessels and other skin areas, thus providing a real-time and clear display of the vascular network.

[0126] In some specific implementations, the contrast agents include iodine-containing contrast agents for CT and gadolinium-containing contrast agents for MRI, which absorb more near-infrared light than normal human tissue, thus creating a clear contrast. Utilizing this principle, the maximum vascular detection depth can reach several millimeters, providing sufficient depth for real-time detection of the injection area using a high-pressure injector, effectively ensuring image quality.

[0127] In some specific embodiments, the three-dimensional monitoring component 6 for exudate masses is a binocular structured light camera 61 that monitors the size of exudate masses in the patient's injection area. The binocular structured light camera 61 is mounted on one side of the near-infrared monitoring imaging component 5. When contrast agent extravasates, an exudate mass appears in the image. This mass appears as a "low-signal infrared black spot" in the infrared image, differing in color from normal tissue. The binocular structured light camera 61 can accurately identify it, determine its coordinate position, and transmit the coordinate signal to the controller. The size of the mass is then detected by the change in coordinate position before and after injection. The exudate mass occurs because when contrast agent extravasates, the blood vessel wall ruptures, and a mass of exudate accumulates at the rupture site.

[0128] In some specific embodiments, the binocular optical camera 61 has two units, located on both sides of the near-infrared monitoring and imaging component 5, to create a good stereoscopic depth effect; the near-infrared light emitter 51 and the near-infrared light receiver 52 are positioned in the middle to vertically illuminate the injection area, and the projector 54 is located to one side of the near-infrared light receiver 52 to prevent distortion due to tilted projection. In use, the near-infrared monitoring and imaging component 5 is pulled to approximately 25-30 cm directly above the injection area using the mounting rod 2 and the folding bracket 3 to ensure the near-infrared light has the ability to emit, penetrate, reflect, and receive. The projector 54 is also set with a focal length within the 25-30 cm range to prevent the projected image from being out of focus or distorted.

[0129] In some specific implementations, the binocular structured light camera 61 adopts depth-sensing stereo recognition technology and has structured light stereo imaging function. Through two sets of image acquisition and detection, image preprocessing and matching and recognition steps, it recognizes the deformation of the monitored part. The change in the coordinates of the effusion mass is a stereo deformation, so that an alarm will be triggered only when a stereo deformation appears in the picture, effectively filtering out false alarms caused by slight limb tremors, changes in light, etc.

[0130] In some specific implementations, the binocular structured light camera 61 employs intelligent video analysis algorithms to detect object deformation in the image. A common approach is for its internal chip to compare the current frame of the stereoscopic image with the previous frame; if the stereoscopic image changes, it triggers corresponding feedback.

[0131] In some specific embodiments, the mounting plate 4 is provided with a battery slot 41 for placing the battery, which can be opened for battery replacement.

[0132] In some specific embodiments, the multi-parameter monitor also includes a controller 8 electrically connected to the high-pressure injector 1, the near-infrared monitoring imaging component 5, and the three-dimensional monitoring component for the exudate mass 6.

[0133] In some specific embodiments, the controller 8 is electrically connected to an alarm 9, which is mounted on the mounting plate 4;

[0134] The controller 8 is electrically connected to a pressure detector 10 for detecting the injection pressure of the high-pressure injector 1. The high-pressure injector 1 includes a housing 11, a syringe 12, and an infusion tube 13. The pressure detector 10 is located at one end of the housing 11 near the syringe 12. A connecting tube 101 connected to the pressure detector 10 is installed on one side of the infusion tube 13.

[0135] In some specific embodiments, the three-dimensional monitoring component 6 for exudate mass monitors the diameter of the projected image of the near-infrared monitoring imaging component 5, and the pressure detector 10 monitors the injection pressure of the high-pressure injector 1.

[0136] The three-dimensional monitoring component 6 for exudate masses monitors the coordinates of the exudate mass in the patient's injection area and transmits the signal to the controller 8. When the change in the coordinates of the exudate mass is Δx < 0.5cm, the controller 8 controls the alarm 9 to issue an alarm.

[0137] The three-dimensional monitoring component 6 for exudate mass monitors the coordinates of the exudate mass in the patient's injection area, and the pressure detector 10 monitors the injection pressure P of the high-pressure injector 1 and transmits the signal to the controller 8. When the change in the coordinates of the exudate mass is 0.5≤Δx<1cm and the injection pressure P<150psi, the controller 8 controls the alarm 9 to issue an alarm.

[0138] The three-dimensional monitoring component 6 for exudate mass monitors the coordinates of the exudate mass in the patient's injection area, and the pressure detector 10 monitors the injection pressure P of the high-pressure injector 1. The signal is transmitted to the controller 8. When the change in the coordinates of the exudate mass is 0.5≤Δx<1cm and the injection pressure is 150≤P<250psi, the controller 8 controls the alarm 9 to issue an alarm and simultaneously controls the injection pressure of the high-pressure injector 1 to be <100psi. After 2~5s, the injection pressure of the high-pressure injector 1 is restored.

[0139] The three-dimensional monitoring component 6 for exudate mass monitors the coordinates of the exudate mass in the patient's injection area, and the pressure detector 10 monitors the injection pressure P of the high-pressure injector 1 and transmits the signal to the controller 8. When the change in the coordinates of the exudate mass is 1≤Δx<2cm, the controller 8 controls the alarm 9 to issue an alarm, and at the same time controls the injection pressure P of the high-pressure injector 1 to be <100psi and the injection flow rate to be reduced. After 2~5s, the injection pressure of the high-pressure injector 1 is restored.

[0140] The three-dimensional monitoring component 6 for exudate mass monitors the coordinates of the exudate mass in the patient's injection area, and the pressure detector 10 monitors the injection pressure P of the high-pressure injector 1 and transmits the signal to the controller 8. When the change in the coordinates of the exudate mass Δx ≥ 2cm or the injection pressure P ≥ 250psi, the controller 8 controls the alarm 9 to issue an alarm and simultaneously controls the high-pressure injector 1 to stop injecting.

[0141] In some specific implementations, the controller 8 is controlled by a PLC.

[0142] In some specific embodiments, the multi-parameter monitor also includes a display light assembly 43 located on the mounting plate 4. The display light assembly 43 is located on the opposite side from the near-infrared monitoring imaging assembly 5 and the three-dimensional monitoring assembly 6 for the seepage mass. The display light assembly 43 includes a power indicator light 431, a signal indicator light 432, an alarm light 433, and a power indicator light 434. When the size of the detected seepage mass is in different ranges, the alarm light 433 displays different colors.

[0143] In some specific embodiments, the multi-parameter monitor also includes a display 81 electrically connected to the high-pressure injector 1, the near-infrared monitoring imaging component 5, and the exudate mass three-dimensional monitoring component 6, providing real-time infrared imaging images of the near-infrared monitoring imaging component 5 and monitoring screens of the exudate mass three-dimensional monitoring component 6, allowing the operator to make intuitive judgments, and take corresponding measures in a timely manner according to the patient's condition when the alarm 9 sounds.

[0144] In some specific embodiments, the multi-parameter monitor also includes a remote monitor 82 electrically connected to the display 81.

[0145] In some specific embodiments, the mounting plate 4 is also equipped with a voice monitoring and communication component, which is connected to a remote monitor 82 for remote monitoring of the patient's condition.

[0146] In some specific embodiments, the multi-parameter monitor is connected to a recording device via any suitable means known in the art, such that the signals measured by each detector are recorded and stored separately, for example, the multi-parameter monitor may be connected to a computer component via a fiber optic cable.

[0147] In some specific implementations, all components of the multi-parameter monitor are antimagnetic components, designed for use in magnetic resonance chambers, which avoids artifacts caused by changes in the magnetic field due to opening and closing magnetic resonance doors.

[0148] Example 1

[0149] like Figures 1-4As shown, a high-pressure injection vascular status multi-parameter monitor is used to connect to a high-pressure injector 1 and detect the patient's status during high-pressure injection. The multi-parameter monitor includes:

[0150] Mounting rod 2;

[0151] The folding bracket 3 is connected to the mounting rod 2;

[0152] Mounting plate 4 is connected to one end of the folding bracket 3;

[0153] Near-infrared monitoring and imaging component 5, which is mounted on the mounting plate 4 and used to form a vascular distribution contour map and an exudation map in the patient's injection area;

[0154] And an exudate mass three-dimensional monitoring component 6, which is installed on the mounting plate 4 and used to monitor the exudate status of the patient's injection area.

[0155] In this embodiment, the high-pressure injector 1 is a conventional instrument in the art, so it will not be described in detail.

[0156] In this embodiment, the mounting rod 2 is a telescopic mounting rod.

[0157] In this embodiment, the folding bracket 3 includes:

[0158] The first connecting rod 31 is rotatably connected to the mounting rod 2;

[0159] A second connecting rod 32 that is rotatably connected to the first connecting rod 31;

[0160] A third connecting rod 33 is rotatably connected to the second connecting rod 32, and the mounting plate 4 is detachably and fixedly connected to the third connecting rod 33.

[0161] In this embodiment, the first connecting rod 32 and the mounting rod 2 are rotatably connected via the first rotating shaft 34;

[0162] The first connecting rod 31 and the second connecting rod 32 are rotatably connected via the second rotating shaft 35;

[0163] The second connecting rod 32 and the second connecting rod 33 are rotatably connected via the third rotating shaft 36;

[0164] The first rotating shaft 34 is a damping rotating shaft, or is wrapped with a damping plate on the outside, or is provided with a damping spring on the outside, which can easily rotate the first connecting rod, and the connection will not rotate naturally;

[0165] The second rotating shaft 35 is a damping rotating shaft, or is wrapped with a damping plate on the outside, or is provided with a damping spring on the outside, which can easily rotate the first connecting rod 31 and the second connecting rod 32, and the connection will not rotate naturally.

[0166] The third rotating shaft 36 is a damping rotating shaft, or is wrapped with a damping plate on the outside, or is provided with a damping spring on the outside, which can easily rotate the second connecting rod 32 and the third connecting rod 33, and the connection will not rotate naturally.

[0167] In this embodiment, as Figure 5 As shown, the mounting plate 4 is provided with an interface 42 that connects to the third connecting rod 33.

[0168] In this embodiment, as Figure 1 , 6 As shown in Figure 8, the bottom of the mounting rod 2 is provided with a thread 21 for connecting to the MR bed 7 or for threaded connection to the counterweight base 22. The MR bed 7 is provided with a mounting hole 71.

[0169] In this embodiment, as Figure 3 and 4 As shown, the near-infrared monitoring and imaging component 5 includes:

[0170] Near-infrared light emitter 51, mounted on the mounting plate 4, for irradiating the patient's injection area and reflecting near-infrared signals;

[0171] A near-infrared light receiver 52 is electrically connected to the near-infrared light emitter 51 and is used to receive the reflected signal from the near-infrared light emitter 51;

[0172] A processor 53 is electrically connected to the near-infrared light receiver 52, processes the near-infrared signals it receives, and outputs an image.

[0173] And a projector 54 electrically connected to the processor 53 and projecting its output image onto the surface of the patient's injection area.

[0174] In this embodiment, the near-infrared incident light wavelength of the near-infrared light emitter 51 is 720~1100nm. Commonly used near-infrared incident light wavelengths are 760nm, 850nm or 940nm. In this embodiment, 850nm is used, which can penetrate the surface of the skin better.

[0175] In this embodiment, the infrared receiving component 52 in the near-infrared monitoring and imaging component 5 further includes an infrared filter to filter out natural light interference and ensure that the device can operate normally in the presence of natural light.

[0176] In this embodiment, the working principle of the near-infrared monitoring and imaging component 5 is as follows: the near-infrared light emitter 51 emits harmless near-infrared incident light waves to irradiate the patient's injection area, reaching a subcutaneous depth of about 2-3 mm and forming a good infrared echo signal. This superficial venous network is often the preferred site for intravenous injection, where hemoglobin in the blood can absorb near-infrared light. When the near-infrared light emitter 51 irradiates above the skin, the near-infrared signal reflected back from the surrounding tissue is significantly different due to the color of the blood vessels, the presence of extravasated contrast agent (if there is extravasation), and the surrounding tissue. The reflected near-infrared signal is received by the near-infrared light receiver 52 and processed by the processor 53. The resulting near-infrared signal image is directly projected onto the surface of the injection area through the projector 54, forming an image with clear contrast between the blood vessels and other skin areas, thus enabling real-time and clear display of the vascular network.

[0177] In this embodiment, the contrast agents include iodine-containing contrast agents for CT and gadolinium-containing contrast agents for MRI, which absorb more near-infrared light than normal human tissue, thus creating a clear contrast. Utilizing this principle, the maximum vascular detection depth can reach several millimeters. For real-time detection of the injection area of ​​a high-pressure injector, the detection depth is sufficient to effectively ensure image quality.

[0178] In this embodiment, as Figure 9 As shown, the three-dimensional monitoring component 6 for exudate masses is a binocular structured light camera 61 that monitors the size of exudate masses in the patient's injection area. The binocular structured light camera 61 is mounted on one side of the near-infrared monitoring imaging component 5. When contrast agent extravasates, an exudate mass appears in the image. This mass appears as a "low-signal infrared black spot" (hereinafter referred to as a black spot) in the infrared imaging image, clearly different from the vascular contour. The binocular structured light camera 61 can accurately identify it and detect its size. By combining the near-infrared image, the three-dimensional structured image, and the exudate mass monitoring component 6 on the monitor with the patient's condition and reaction, the operator can make the most accurate judgment, greatly improving the accuracy of detecting the patient's high-pressure injection status. This minimizes false alarms and more timely and accurate detection of abnormal swelling of the injection vessel, thereby ensuring patient safety and reducing unnecessary medical accidents.

[0179] In this embodiment, two binocular optical cameras 61 are located on either side of the near-infrared monitoring and imaging component 5, forming a good stereoscopic depth effect. The near-infrared light emitter 51 and the near-infrared light receiver 52 are positioned in the middle to vertically illuminate the injection area. The projector 54 is located to one side of the near-infrared light receiver 52 to prevent distortion due to tilted projection. In use, the near-infrared monitoring and imaging component 5 is pulled to approximately 30cm directly above the injection area using the mounting rod 2 and the folding bracket 3 to ensure the near-infrared light has the ability to emit, penetrate, reflect, and receive. The focal length of the projector 54 is also set within 30cm to prevent the projected image from being out of focus or distorted.

[0180] In this embodiment, the binocular structured light camera 61 employs depth-sensing stereo recognition technology and possesses structured light stereo imaging capabilities. Through two sets of image acquisition and detection, image preprocessing, and matching and recognition steps, it identifies and responds to deformations in the monitored area. The resulting change in the coordinates of the effusion mass is the stereo deformation, thus ensuring that an alarm is triggered only when stereo deformation appears in the image, effectively filtering out false alarms caused by slight limb tremors, changes in lighting, etc. The binocular structured light camera 61 uses intelligent video analysis algorithms to detect object deformation in the image. A common method is for its internal chip to compare the current stereo image with the previous stereo image; if the stereo image changes, corresponding feedback is triggered. Depth-sensing stereo recognition technology is a conventional technology in this field. The binocular structured light camera 61 in this embodiment uses Hikvision's RGB-D intelligent stereo camera MV-DB300S. This model employs active binocular stereo imaging technology, combined with a color camera to output high-frame-rate RGB-D images, and incorporates a deep learning algorithm, making it suitable for applications such as volume measurement and robot grasping. The high-performance sensor, paired with a high-efficiency laser module, delivers stable and efficient output of millimeter-level precision depth maps with a scanning frame rate of up to 17fps, enabling rapid and accurate measurement of objects.

[0181] Example 2

[0182] like Figure 10 As shown, this embodiment, based on embodiment 1, further includes a controller 8 electrically connected to the high-pressure injector 1, the near-infrared monitoring and imaging component 5, and the three-dimensional monitoring component for the seepage mass 6. The controller 8 is electrically connected to an alarm 9, which is mounted on the mounting plate 4.

[0183] The controller 8 is electrically connected to a pressure detector 10 for detecting the injection pressure of the high-pressure injector 1. The high-pressure injector 1 includes a housing 11, a syringe 12, and an infusion tube 13. The pressure detector 10 is located at one end of the housing 11 near the syringe 12. A connecting tube 101 connected to the pressure detector 10 is installed on one side of the infusion tube 13.

[0184] In this embodiment, the controller 8 is controlled by a PLC.

[0185] In this embodiment, the pressure detector 10 is any pressure sensor that can be implemented in the art.

[0186] In this embodiment, as Figure 11 The multi-parameter monitor also includes a display light assembly 43 located on the mounting plate 4. The display light assembly 43 is located on the opposite side of the near-infrared monitoring imaging assembly 5 and the three-dimensional monitoring assembly 6 for the seepage mass. The display light assembly 43 includes a power indicator light 431, a signal indicator light 432, an alarm light 433, and a power indicator light 434. When the size of the detected seepage mass is in different ranges, the alarm light 433 displays different colors.

[0187] In this embodiment, the multi-parameter monitor also includes a display 81 electrically connected to the high-pressure injector 1, the near-infrared monitoring imaging component 5, and the exudate mass three-dimensional monitoring component 6, providing real-time infrared imaging images of the near-infrared monitoring imaging component 5 and monitoring screens of the exudate mass three-dimensional monitoring component 6, allowing the operator to make intuitive judgments, and take corresponding measures in a timely manner according to the patient's condition when the alarm 9 sounds.

[0188] like Figure 12 As shown, in addition to three-dimensional detection, the three-dimensional monitoring component 6 for exudate mass can also monitor the diameter of the image projected by the infrared image projector 54 in the near-infrared monitoring and imaging component 5, and the pressure detector 10 monitors the injection pressure of the high-pressure injector 1.

[0189] The three-dimensional monitoring component 6 for exudate mass detects the coordinates of the exudate mass in the patient's injection area and transmits the signal to the controller 8. When the change in the coordinates of the exudate mass Δx < 0.5cm, the controller 8 controls the alarm 9 to sound an alarm, which may be a beeping sound. At the same time, the alarm light 433 lights up to remind the operator to pay attention and is displayed on the display 81.

[0190] The three-dimensional monitoring component 6 for exudate mass monitors the coordinates of the exudate mass in the patient's injection area, and the pressure detector 10 monitors the injection pressure P of the high-pressure injector 1 and transmits the signal to the controller 8. When the change in the coordinates of the exudate mass is 0.5≤Δx<1cm and the injection pressure P<150psi, the controller 8 controls the alarm 9 to sound an alarm, which may be a beeping sound. At the same time, the alarm light 433 lights up to remind the operator to pay attention and the alarm is displayed on the display 81.

[0191] The three-dimensional monitoring component 6 for exudate lumps monitors the coordinates of the exudate lumps in the patient's injection area, and the pressure detector 10 monitors the injection pressure P of the high-pressure injector 1. The signal is transmitted to the controller 8. When the change in the coordinates of the exudate lumps is 0.5 ≤ Δx < 1 cm, and the injection pressure is 150 ≤ P < 250 psi, the controller 8 controls the alarm 9 to sound an alarm, which may be a beeping sound. Simultaneously, the alarm light 433 illuminates to alert the operator, and the alarm is displayed on the monitor 81. At the same time, the controller controls the injection pressure of the high-pressure injector 1 to be < 100 psi. After 2 seconds, the injection pressure of the high-pressure injector 1 is restored. During this time, the operator closely monitors the injection site. If the situation returns to normal and there are no further changes, the operator does not need to perform any further operations. If exudate continues to flow when the injection pressure is restored, the operator must then operate to reduce the injection pressure.

[0192] The three-dimensional monitoring component 6 for the exudate mass monitors the coordinates of the exudate mass in the patient's injection area, and the pressure detector 10 monitors the injection pressure P of the high-pressure injector 1. The signal is transmitted to the controller 8. When the change in the coordinates of the exudate mass is 1 ≤ Δx < 2 cm, the controller 8 controls the alarm 9 to sound an alarm, which may be a beeping sound. Simultaneously, the alarm light 433 illuminates to alert the operator, and the alarm is displayed on the monitor 81. At the same time, the controller controls the injection pressure P of the high-pressure injector 1 to be less than 100 psi. After 2 seconds, the injection pressure of the high-pressure injector 1 is restored. During this time, the operator closely monitors the injection site. If the condition returns to normal and there are no further changes, the operator does not need to intervene. If effusion continues to occur when the injection pressure is restored, the operator will adjust the injection pressure to reduce it. The three-dimensional monitoring component 6 for effusion masses monitors the coordinates of the effusion mass in the patient's injection area, and the pressure detector 10 monitors the injection pressure P of the high-pressure injector 1. The signals are transmitted to the controller 8. When the change in the coordinates of the effusion mass Δx ≥ 2 cm or the injection pressure P ≥ 250 psi, the controller 8 controls the alarm 9 to sound an alarm, which may be a beeping sound. At the same time, the alarm light 433 illuminates to alert the operator and is displayed on the monitor 81. Simultaneously, the high-pressure injector 1 is stopped from injecting. At this time, the operator will adjust the procedure according to the patient's condition.

[0193] Example 3

[0194] This embodiment is based on embodiment 2, such as Figure 13 As shown, a battery slot 41 for placing batteries is provided on the mounting plate 4, and the cover can be opened for battery replacement.

[0195] In this embodiment, the multi-parameter monitor also includes a remote monitor 82 electrically connected to the display 81, such as... Figure 14As shown, the near-infrared light emitter 51 emits harmless near-infrared incident light waves to irradiate the patient's injection area. The reflected near-infrared signal is received by the near-infrared light receiver 52 and processed by the processor 53. The resulting near-infrared imaging image is directly projected onto the surface of the injection area through the projector 54, forming an image with clear contrast between blood vessels and other skin areas, thus displaying the vascular network in real time and clearly. After the near-infrared monitoring imaging component 5 detects the distribution of blood vessels and effusion masses, it transmits the signal to the controller 8 and displays the image on the display 81. The effusion mass stereoscopic monitoring component 6 detects the change in the coordinate position of the effusion mass and transmits the signal to the controller 8. The coordinate positions before and after injection are compared to obtain the size of the effusion mass. At the same time, the pressure sensor 10 detects the injection pressure of the high-pressure injector 1 and transmits the signal to the controller 8. By comparing the actual size of the effusion mass with the set size and the actual pressure with the set pressure value, the alarm 9 is activated, the high-pressure injector 1 is reduced in injection pressure or injection is stopped, and the relevant information is displayed on the display 81. The information in the display 81 is further transmitted to the remote monitor 82 for convenient operation and remote acquisition of relevant information.

[0196] In this embodiment, the mounting plate 4 is also equipped with a voice monitoring and communication component, which is connected to the remote monitor 82 for remote monitoring of the patient's status.

[0197] In this embodiment, the multi-parameter monitor is connected to the recording device via any suitable means known in the art, so that the signals measured by each detector are recorded and stored separately. For example, the multi-parameter monitor may be connected to a computer component via an optical fiber cable.

[0198] In this embodiment, all components of the multi-parameter monitor are magnetically shielded for use in a magnetic resonance imaging (MRI) chamber, thus avoiding artifacts caused by magnetic field changes due to opening and closing the MRI door. This ensures that the instrument is not affected by high magnetic field strength or radio frequency pulse interference during operation and does not disrupt the normal gradient magnetic field of the MRI equipment.

[0199] Although the present invention has been described in detail above with general descriptions, specific embodiments, and experiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A high-pressure injection blood vessel state multi-parameter monitor, characterized in that, It is used for connecting with high-pressure injector (1) and detecting the state of patient during high-pressure injection, the multi-parameter monitor comprises: A mounting rod (2); A folding support (3) connected with the mounting rod (2); An installation plate (4) connected with one end of the folding support (3); A near-infrared monitoring imaging assembly (5) installed on the installation plate (4) and used for forming a blood vessel distribution profile and a exudation map in the injection area of the patient; And a exudation block stereoscopic monitoring assembly (6) installed on the installation plate (4) and used for monitoring the exudation state of the injection area of the patient.

2. The high-pressure injection vessel status multi-parameter monitor according to claim 1, characterized in that, The folding support (3) comprises: A first connecting rod (31) rotationally connected with the mounting rod (2); A second connecting rod (32) rotationally connected with the first connecting rod (31); A third connecting rod (33) rotationally connected with the second connecting rod (32), and the installation plate (4) is detachably fixedly connected with the third connecting rod (33).

3. The high-pressure injection vessel status multi-parameter monitor according to claim 2, characterized in that, The first connecting rod (31) is rotationally connected with the mounting rod (2) through a first rotating shaft (34); The first connecting rod (31) is rotationally connected with the second connecting rod (32) through a second rotating shaft (35); The second connecting rod (32) is rotationally connected with the second connecting rod (32) through a third rotating shaft (36); The first rotating shaft (34) is a damping rotating shaft, or is wrapped with a damping sheet on the outside, or is provided with a damping spring on the outside; The second rotating shaft (35) is a damping rotating shaft, or is wrapped with a damping sheet on the outside, or is provided with a damping spring on the outside; The third rotating shaft (36) is a damping rotating shaft, or is wrapped with a damping sheet on the outside, or is provided with a damping spring on the outside.

4. The high-pressure injection vessel status multi-parameter monitor according to claim 1, characterized in that, The bottom of the mounting rod (2) is provided with a thread (21) for connecting with an MR bed (7) or screwing with a counterweight base (22).

5. The high-pressure injection vessel status multi-parameter monitor according to claim 1, characterized in that, The near-infrared monitoring imaging assembly (5) comprises: A near-infrared light emitter (51) installed on the installation plate (4) and used for irradiating the injection area of the patient and reflecting a near-infrared signal; A near-infrared light receiver (52) electrically connected with the near-infrared light emitter (51) and used for receiving the reflected signal of the near-infrared light emitter (51); A processor (53) electrically connected with the near-infrared light receiver (52) and used for processing the received near-infrared signal and outputting an image; And a projector (54) electrically connected with the processor (53) and used for projecting the output image of the processor (53) to the surface of the injection area of the patient.

6. The high-pressure injection vessel status multi-parameter monitor according to claim 1, characterized in that, The exudation block stereoscopic monitoring assembly (6) comprises a binocular structured light camera (61) for monitoring the size of the exudation block of the injection area of the patient, and the binocular structured light camera (61) is installed on both sides of the near-infrared monitoring imaging assembly (5).

7. The high-pressure injection vessel status multi-parameter monitor according to claim 1, characterized in that, The multi-parameter monitor further comprises a controller (8) electrically connected with the high-pressure injector (1), the near-infrared monitoring imaging assembly (5) and the exudation block stereoscopic monitoring assembly (6).

8. The high-pressure injection vessel status multi-parameter monitor according to claim 7, characterized in that, The controller (8) is electrically connected with an alarm (9).

9. The high-pressure injection vessel status multi-parameter monitor according to claim 7, characterized in that, The controller (8) is electrically connected with a pressure detector (10) for detecting the injection pressure of the high-pressure injector (1), and the pressure detector (10) is arranged on the high-pressure injector (1).

10. The multi-parameter monitor for high pressure injection according to claim 1, wherein, The multi-parameter monitor further comprises a display (81) electrically connected with the high-pressure injector (1), the near-infrared monitoring imaging assembly (5), and the liquid-permeating block stereoscopic monitoring assembly (6).

Images