Infusion monitoring device for neurological serious illness

Abstract

The invention relates to an infusion monitoring device for neurological serious illness, which comprises an infusion support mechanism, a laser monitoring mechanism, a gravity detection mechanism, a switching positioning mechanism and an infusion tube limiting mechanism, and is characterized in that the laser monitoring mechanism forms a detection channel through a laser generator and a laser receiver; the gravity detection mechanism comprises a rotatable rotating disc, a tilting rod, a hook, a connecting rod, a balancing weight and a first spring, the balancing weight moves upwards or downwards under the action of the weight change of the infusion bottle to shield the laser channel to achieve monitoring reminding of infusion ending, and the switching positioning mechanism is used for adjusting the angle of the rotating disc to achieve monitoring channels corresponding to infusion bottles with different capacities. The infusion support structure has a height adjusting function, the infusion tube limiting mechanism achieves limiting and heat preservation of an infusion tube through a heating and clamping structure, and the device has the functions of being accurate in monitoring, convenient to switch, wide in application range, capable of heating in winter and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an infusion monitoring device for critical neurological diseases. Background Art

[0002] In the process of neurocritical care, the patient's condition is often critical, and there are extremely high requirements for the continuity and timeliness of drug infusion. Multi-channel intravenous infusion systems are widely used in clinical practice, and medical staff need to monitor the infusion of multiple medicine bottles at the same time. Among the existing infusion monitoring devices, common technical solutions mainly include infrared monitoring, laser occlusion detection, and capacitive sensing technology. However, these methods all have certain shortcomings in practical applications.

[0003] Taking the laser blocking type monitoring device as an example, it usually determines the infusion status by detecting the position change of the medicine bottle or the infusion tube. However, due to the high transparency of some medicines, monitoring errors are prone to occur, especially when the medicine is about to be emptied. It is more likely to miss the detection. Although the capacitive sensing type monitoring device can judge the infusion status, it is easily affected by factors such as the charge of the medicine, bubbles in the pipeline, and environmental interference, which may cause false alarms. In addition, most of the existing multi-channel infusion stands have a fixed structure. When faced with the need to monitor medicine bottles with different infusion volumes, they lack a targeted adjustment mechanism and are unable to meet the needs of critically ill neurological patients for high-precision infusion monitoring.

[0004] In actual use, existing technical solutions also generally ignore the balance between monitoring stability and error control, especially in the case of patient activity or ambient temperature changes, which can easily affect the normal operation of the device. For example, during the infusion process in winter, the temperature of the liquid medicine is too low, which may cause discomfort to the patient, but most existing infusion stands are not equipped with an infusion tube heating function, which has practical limitations. At the same time, the installation of the infusion tube in the monitoring structure mostly relies on simple suspension, lacking an effective limit and fixing mechanism. When the patient moves unconsciously, the infusion tube may be displaced, affecting the accuracy of monitoring. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides an infusion monitoring device for critical neurological diseases, which has a stable structure, strong adaptability and precise monitoring, so as to solve the technical problems of the existing infusion monitoring devices such as missed detection or false alarm caused by problems such as drug transparency, charge interference, error sensing, as well as poor device versatility and unreasonable structure.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: An infusion monitoring device for critical neurological diseases, comprising an infusion stand mechanism, a laser monitoring mechanism installed on the top of the infusion stand mechanism, the laser monitoring mechanism comprising a box, a column vertically arranged at the center of the box, a laser receiver arranged on one side of the column surface, and a laser generator arranged on the inner wall of one side of the box; A gravity detection mechanism is rotatably installed on the top of the box, and the gravity detection mechanism includes a rotating disk open upward, and four groups of mounting plates are evenly arranged on the outside of the rotating disk, and two mounting plates are arranged in the same group, and a tilting rod is hinged between the two mounting plates, and a hook is installed downward at the outer end of the tilting rod, and a connecting rod is hinged at the inner end of the tilting rod, and a counterweight block is installed at the bottom of the connecting rod through a joint bearing, and the counterweight block is placed inside the box; A switching positioning mechanism is arranged on one side of the box body, and the switching positioning mechanism is used to control the rotation angle of the gravity detection mechanism.

[0007] Furthermore, the infusion stand mechanism includes a base placed on the ground, with universal wheels installed at the four corners of the bottom of the base, a vertical tube is vertically arranged on the upper surface of the base, a lifting rod is slidably installed on the top of the vertical tube, the lifting rod and the vertical tube are locked and fixed by bolts, and a storage tray is fixed on one side of the top of the vertical tube.

[0008] Furthermore, a top cover is screwed on the top of the rotating disk, through holes are evenly opened on the lower surface of the rotating disk, and multiple connecting rods pass through the through holes respectively. Four groups of fixing bolts are evenly arranged on the bottom of the box body, and each group of fixing bolts is provided with two. The two fixing bolts in the same group are respectively placed on both sides of the corresponding through holes, and a limiting plate is provided at the bottom of the fixing bolts.

[0009] Furthermore, the two sides of the counterweight block slide on the surfaces of two fixing bolts in the same group respectively, and the surface of the fixing bolt is sleeved with a first spring, which is placed above the counterweight block, and the top of the first spring contacts the lower surface of the rotating disk.

[0010] Furthermore, the four counterweights correspond to the weights of conventional infusion bottles of 50 ml, 100 ml, 250 ml and 500 ml, respectively.

[0011] Furthermore, the lower surface of the rotating disk is evenly provided with positioning holes with its axis as the center, wherein four of the positioning holes correspond to the tilting rods, an extension plate is fixed to one side of the box body, and the switching positioning mechanism is installed on the extension plate.

[0012] Furthermore, the switching positioning mechanism includes a sliding rod that slides vertically on the surface of the extension plate, a pull rope is connected to the bottom of the sliding rod, a positioning bolt is provided on the top of the sliding rod, the top of the positioning bolt and the internal size of the positioning hole are adapted to each other, a second spring is sleeved on the surface of the sliding rod, and the second spring is placed between the extension plate and the positioning bolt.

[0013] Furthermore, an infusion tube limiting mechanism for limiting and heating the infusion tube is provided on the front side of the surface of the infusion stand mechanism. The infusion tube limiting mechanism includes an electric heating block fixed on one side of the top of the vertical tube. A limiting hole is provided on one side of the electric heating block, and the infusion tube passes through the limiting hole for heating.

[0014] Furthermore, a fixing plate is symmetrically arranged at the bottom of the electric heating block, a double-threaded rod is rotatably installed between the two fixing plates, sliders are symmetrically screwed on the surface of the double-threaded rod, the two sliders are respectively placed on both sides of the limiting hole, an extrusion rod is arranged on the front side of the slider, and the two extrusion rods are used to clamp and fix the infusion tube.

[0015] Furthermore, the laser receiver corresponds to the laser generator, and a buzzer is installed on the front surface of the box body, and the buzzer emits a buzzing sound when the corresponding counterweight block enters between the laser generator and the laser receiver.

[0016] The present invention provides an infusion monitoring device for critical neurological diseases. It has the following beneficial effects: This device sets a laser monitoring mechanism on the top of the infusion stand. The laser monitoring mechanism is composed of a laser generator and a laser receiver to form a detection channel, and combines the up and down displacement state of the movable counterweight block to realize the end of infusion judgment. Compared with the traditional monitoring method that relies on the liquid level height or the transparency of the liquid medicine, it can effectively avoid false alarms or missed alarms caused by the transparency of the liquid medicine, light interference, etc.; at the same time, the structure realizes signal changes through physical shielding, has high detection stability and anti-interference ability, and is particularly suitable for clinical scenarios such as neurological critical care that have extremely high requirements for infusion continuity.

[0017] Four counterweights corresponding to different medicine bottle capacities are arranged in this device, and each counterweight is connected to the infusion bottle by a hook. During the infusion of medicine, the counterweight moves according to the change of bottle weight; the counterweight realizes gravity energy storage and trigger feedback through the compression and release of the first spring, thereby realizing the monitoring logic closed loop; this structural design can be preset according to the capacity of commonly used clinical medicine liquid to meet the needs of medicine bottles of various specifications, and can accurately distinguish the status of each channel, thereby improving the accuracy and efficiency of multi-channel parallel monitoring, and solving the technical problem that the existing fixed weight or single-channel monitoring is not compatible with multiple bottles and multiple quantities.

[0018] By setting up a rotatable rotating disk and setting up multiple positioning holes under the disk body, the rapid switching and precise positioning of the gravity detection mechanism can be achieved. With the coordinated cooperation between the sliding rod, positioning bolt, pull rope and the second spring in the switching positioning mechanism, medical staff can quickly adjust the detection position according to the monitoring requirements corresponding to medicine bottles of different capacities; in addition, the offset hole is designed to make all counterweights deviate from the laser detection channel when not in use, so as to avoid false alarms when empty, thereby improving the adaptability and intelligence of the device and solving the problems of complex operation and difficult switching of existing devices.

[0019] The device is provided with a lifting rod and a storage tray on the infusion stand mechanism. The lifting rod is adjusted by sliding the vertical tube to adapt to different bed positions and operating height requirements. The storage tray is used for temporary storage of medicines and medical equipment, which improves the convenience of use. The universal wheels are arranged at the bottom to realize flexible movement and fixation of the equipment, enhance the layout flexibility in clinical use, and effectively solve the defects of the existing infusion stand such as poor versatility, fixed structure and low space utilization.

[0020] In order to ensure the comfort of patients during infusion in winter, the device is equipped with an infusion tube limiting heating mechanism consisting of an electric heating block and a limiting hole. The limiting hole can guide the infusion tube through the heating zone for temperature adjustment, thereby solving the problem of patient discomfort caused by the medicine in a low temperature environment; at the same time, by providing a slider, a double-threaded rod and an extrusion rod structure, the infusion tube can be clamped and fixed on both sides to prevent the patient from unconsciously moving the infusion tube, thereby ensuring the balance of the counterweight device in the monitoring system and the accuracy of the monitoring results, overcoming the problem of inaccurate control of the infusion tube path in the existing system.

[0021] The device has a compact overall structure and its components work together to effectively realize full-process automatic monitoring from weight changes in infusion bottles to alarm signal output. It solves many key problems existing in actual applications, such as false detection of transparent drug solutions, false alarms of capacitive sensing, inconvenient detection switching, and disturbance interference from infusion tubes. It improves the degree of automation and safety assurance capabilities in high-dependency infusion treatment scenarios such as critical neurological diseases. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view structural diagram of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the gravity detection mechanism of the present invention; Figure 4 For the present invention Figure 3 A schematic cross-sectional structure diagram of ; Figure 5 It is a schematic diagram of the connection between the tilting rod and the counterweight block of the present invention; Figure 6 This is a schematic diagram of the installation structure of the counterweight block of the present invention when viewed from above; Figure 7 It is a schematic diagram of the structure of the laser monitoring mechanism of the present invention; Figure 8 It is a schematic diagram of the structure of the infusion stand of the present invention; Fig. 9 It is a schematic diagram of the infusion tube limiting mechanism.

[0023] Among them, 1. Infusion stand mechanism; 11. Base; 12. Universal wheel; 13. Vertical tube; 14. Lifting rod; 15. Storage tray; 2. Laser monitoring mechanism; 21. Box; 22. Column; 23. Laser generator; 24. Laser receiver; 25. Extension plate; 26. Buzzer; 3. Gravity detection mechanism; 31. Rotating disk; 32. Mounting plate; 33. Crank rod; 34. Hook; 35. Connecting rod; 36. Through hole; 37. Fixing bolt; 371. Limiting plate; 38. Counterweight; 39. First spring; 310. Positioning hole; 311. Top cover; 4. Switching positioning mechanism; 41. Sliding rod; 42. Pull rope; 43. Positioning bolt; 44. Second spring; 5. Infusion tube limiting mechanism; 51. Electric heating block; 52. Limiting hole; 53. Fixing plate; 54. Double threaded rod; 55. Sliding block; 56. Extrusion rod. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0025] See also Figure 1-9A transfusion monitoring device for critical neurological diseases comprises an infusion stand mechanism 1, a laser monitoring mechanism 2 is installed on the top of the infusion stand mechanism 1, the laser monitoring mechanism 2 comprises a box 21, a column 22 is vertically arranged at the center of the box 21, a laser receiver 24 is arranged on one side of the surface of the column 22, and a laser generator 23 is arranged on the inner wall of one side of the box 21; the laser receiver 24 and the laser generator 23 form a photoelectric detection channel through the column 22, which is used to monitor the position change of the counterweight block 38 in the gravity detection mechanism 3; a buzzer 26 is installed on the front surface of the box 21, and the buzzer 26 is used to provide an audible alarm signal after the counterweight block 38 enters the detection channel; the structure triggers laser occlusion detection through gravity changes, effectively avoiding the false alarm and missed detection problems caused by traditional transparent liquid medicine or capacitor interference; the box A gravity detection mechanism 3 is rotatably installed on the top of 21, and the gravity detection mechanism 3 includes a rotating disk 31 open upward, and four groups of mounting plates 32 are evenly arranged on the outside of the rotating disk 31, and two mounting plates 32 are arranged in the same group, and a tilting rod 33 is hinged between the two mounting plates 32, and a hook 34 is downwardly installed on the outer end of the tilting rod 33, and a connecting rod 35 is hinged on the inner end of the tilting rod 33, and a counterweight block 38 is installed on the bottom of the connecting rod 35 through a joint bearing, and the counterweight block 38 is placed inside the box body 21; the rotating disk 31 and the gravity detection mechanism 3 are integrally matched to selectively align with the laser channel according to the weight of different medicine bottles; a switching positioning mechanism 4 is arranged on one side of the box body 21, and the switching positioning mechanism 4 is used to control the rotation angle of the gravity detection mechanism 3 to achieve accurate switching and positioning between the infusion bottle and the laser monitoring area.

[0026] See also Figure 1 , Figure 2 and Fig. 9 The infusion stand mechanism 1 includes a base 11 placed on the ground, and universal wheels 12 are installed at the four corners of the bottom of the base 11. The universal wheels 12 have a locking function to ensure the stability of the device; a vertical tube 13 is vertically arranged on the upper surface of the base 11, and a lifting rod 14 is slidably installed on the top of the vertical tube 13. The lifting rod 14 and the vertical tube 13 are locked and fixed by bolts. The height of the lifting rod 14 is adjustable to adapt to different patient bed heights and medical operation convenience; a storage tray 15 is fixed on one side of the top of the vertical tube 13, and the storage tray 15 is used to place commonly used medical items such as medicine bottles, syringes, etc., to improve operation efficiency.

[0027] See also Figure 1-5A top cover 311 is screwed on the top of the rotating disk 31, and the top cover 311 is used to cover and protect the internal structure of the rotating disk 31; through holes 36 are evenly opened on the lower surface of the rotating disk 31, and multiple connecting rods 35 respectively pass through the through holes 36; four groups of fixing bolts 37 are evenly arranged on the bottom of the box body 21, and each group of fixing bolts 37 is provided with two, and the two fixing bolts 37 in the same group are respectively placed on both sides of the corresponding through holes 36; a limit plate 371 is provided at the bottom of the fixing bolt 37, and the limit plate 371 is used to provide limit support when the counterweight block 38 moves down to the lowest point, so as to ensure the stability of the monitoring zero point position; this structure realizes the movable connection between the connecting rod 35, the counterweight block 38 and the rotating disk 31, so that the weight change can be transmitted to the laser monitoring area.

[0028] See also Figure 1-5 The two sides of the counterweight 38 slide on the surfaces of the two fixing bolts 37 of the same group respectively, and the sliding cooperation ensures the vertical and smooth movement of the counterweight 38; a first spring 39 is sleeved on the surface of the fixing bolt 37, and the first spring 39 is placed above the counterweight 38, and the top of the first spring 39 is in contact with the lower surface of the rotating disk 31; the first spring 39 is used to generate compression and storage force during the upward movement of the counterweight 38. When the medicine is infused, the elastic force and the gravity of the counterweight 38 work together to make it move down quickly to block the laser beam, thereby realizing timely reminder of the end of infusion; this structure is combined with the spring prestress mechanism to improve the monitoring response sensitivity and system stability.

[0029] See also Figure 5-7 The four counterweights 38 correspond to the weights of conventional infusion bottles of 50 ml, 100 ml, 250 ml and 500 ml respectively; the mass of each counterweight 38 is designed according to the full bottle state of the commonly used clinical infusion bottles to ensure that the weight change during the infusion process has a clear threshold; the hook 34 is set corresponding to each counterweight 38, and the corresponding hook 34 is hung by infusion bottles of different weights, so as to accurately control the starting position and action response of the corresponding counterweight 38; this design realizes the adaptation of multiple medicine bottles and directional monitoring of independent channels, effectively improving the versatility and accuracy of the monitoring device.

[0030] See also Figure 4-7 The lower surface of the rotating disk 31 is evenly provided with positioning holes 310 with its axis as the center, wherein four positioning holes 310 correspond to the tilting rods 33, and the positioning holes 310 are used to cooperate with the positioning bolts 43 to locate the angle position of the gravity detection mechanism 3; an extension plate 25 is fixed to one side of the box body 21, and the extension plate 25 is used to install the switching positioning mechanism 4 and provide support; this structure ensures that the rotating disk 31 can adjust the relative position of the corresponding counterweight block 38 and the laser monitoring area according to the weight of different infusion bottles when in use, thereby enhancing the controllability and accuracy of the monitoring mechanism.

[0031] See also Figure 8-9The switching positioning mechanism 4 includes a slide bar 41 that slides vertically on the surface of the extension plate 25, and a pull rope 42 is connected to the bottom of the slide bar 41, and the pull rope 42 is used to manually control the slide bar 41 to move up and down; a positioning bolt 43 is arranged on the top of the slide bar 41, and the top of the positioning bolt 43 is adapted to the internal size of the positioning hole 310, which is used for precise positioning after the rotating disk 31 rotates; a second spring 44 is sleeved on the surface of the slide bar 41, and the second spring 44 is placed between the extension plate 25 and the positioning bolt 43. The second spring 44 is used to automatically push the positioning bolt 43 to insert into the positioning hole 310 after releasing the pull rope 42, so as to ensure the stability of the rotating disk 31; this structure is convenient for medical staff to manually switch the corresponding channel position according to the actual infusion volume, thereby improving the convenience and accuracy of operation.

[0032] See also Figure 6 The front side of the surface of the infusion stand mechanism 1 is provided with an infusion tube limiting mechanism 5 for limiting and heating the infusion tube. The infusion tube limiting mechanism 5 includes an electric heating block 51 fixed to one side of the top of the vertical tube 13. The electric heating block 51 is used to heat the infusion tube at a constant temperature in a winter environment; a limiting hole 52 is provided on one side of the electric heating block 51. The limiting hole 52 is used to fix the path of the infusion tube when it passes through the heating area to prevent swinging or detachment; this structure solves the problem of patient discomfort caused by the infusion of low-temperature liquid medicine in cold seasons, enhances patient comfort and ensures treatment continuity.

[0033] See also Figure 6 A fixing plate 53 is symmetrically arranged at the bottom of the electric heating block 51, a double-threaded rod 54 is rotatably installed between the two fixing plates 53, and sliders 55 are symmetrically screwed on the surface of the double-threaded rod 54. The two sliders 55 are respectively placed on both sides of the limiting hole 52, and an extrusion rod 56 is arranged on the front side of the slider 55. The two extrusion rods 56 are used to clamp and fix the infusion tube; when the double-threaded rod 54 is rotated, the two sliders 55 can be driven symmetrically to approach each other, so as to achieve the clamping and fixation of the infusion tube, and prevent the pipeline from being pulled due to the patient's unconscious movement, thereby affecting the stable operation and monitoring accuracy of the counterweight mechanism; this structure enhances the stability of the pipeline while limiting, and improves the reliability of the overall system.

[0034] See also Figure 8-9 The laser receiver 24 corresponds to the laser generator 23 to form a stable laser detection channel; when the corresponding counterweight 38 enters the laser channel to block the light beam after the infusion is completed, the laser receiver 24 detects the change of the light signal and transmits the signal to the buzzer 26 installed on the front surface of the box 21. The buzzer 26 emits a buzzing sound to remind medical staff to replace the medicine bottle; the sound and light linkage structure improves the efficiency of automated monitoring of the infusion process and effectively reduces the frequency of manual inspections and the risk of misjudgment.

[0035] Example 2: Application of laser shielding counterweight monitoring structure In this embodiment, the laser monitoring mechanism uses a narrow-beam laser receiver of model LS-PD20 and a laser generator of model LS-LD15, which are respectively installed on both sides of the box, and a stable laser channel is formed through the cross-shooting of the columns; when a hook on a certain way on the rotating disk is mounted with an infusion bottle, the corresponding counterweight (mass 250g, material 304 stainless steel) gradually moves downward as the weight of the medicine bottle decreases. After the medicine is infused, the elastic force of the first spring (specification Φ20×40mm, compression stiffness 2.0N / mm) pushes the counterweight to fall into the laser channel, triggering laser shielding and a buzzer alarm reminder; this structure can operate stably under conditions such as complex ambient light and transparent medicine to avoid misjudgment.

[0036] In the comparative case, an infrared recognition solution for the liquid surface of a transparent medicine bottle was used. During the test of glucose injection (colorless and transparent), 5 missed detections occurred, and the false alarm rate increased to 20% under light illumination. However, the detection accuracy of this embodiment reached 100% in the same environment, demonstrating its superior adaptability to the transparent medicine liquid environment.

[0037] Example 3: Design of grouped weight structure suitable for multi-capacity medicine bottles In this embodiment, four groups of hooks and counterweight structures are evenly distributed on the outside of the rotating disk 31, corresponding to four types of medicine bottles with different capacities of 50mL (hook load ≤100g), 100mL (150g), 250mL (250g) and 500mL (400g); each group of counterweight blocks is made of high-density carbon steel, which is electroplated for corrosion protection, and the first spring force is adjusted to match different capacity weight response curves; the rotating disk is made of aluminum alloy (model 6061-T6) CNC machined with an accuracy of ±0.05mm and a tight matching structure, and directional monitoring channel response is achieved through different mounting positions; it meets the parallel monitoring of multiple bottles with different capacities and prevents recognition errors under the traditional unified counterweight mechanism.

[0038] In the comparative case, a single counterweight solution (fixed at 300g) was used to monitor medicine bottles of different capacities. In the 500mL medicine bottle, the counterweight fell back with a lag and the response was delayed by about 8 minutes. In this embodiment, the counterweight completely corresponded to the bottle weight, and the response time was controlled within 30 seconds, making the monitoring reaction more sensitive and the judgment more accurate.

[0039] Example 4: Design of fast positioning and no-load switching of rotating disk In this embodiment, the rotating disk 31 has a diameter of 180 mm and is provided with five positioning holes 310, one of which is designed as an offset hole in the non-monitoring state; a Φ6mm alloy slide bar is used in the switching positioning mechanism, in conjunction with a Φ8mm positioning bolt and a compression spring (model 304 spring steel, stiffness 3.5N / mm), and the rotating disk is pulled down by pulling a rope (high-strength nylon rope) to achieve free rotation after the rotating disk is disengaged, and is released to reset the positioning after the channel is selected; the offset hole is used to make all the counterweights deviate from the laser path when there is no valid medicine bottle mounted on the rotating disk to prevent invalid alarms.

[0040] In the comparative case, no offset gap is set, and the buzzer frequently alarms when the system is powered on and unloaded, requiring manual shielding of the signal channel. In the structure of this embodiment, mechanical positioning is used to eliminate false alarms of the unloaded channel, significantly improving the practicality and intelligence of the system.

[0041] Example 5: Design of adjustable infusion stand and mobile device In this embodiment, the base of the infusion stand adopts a cast iron base plate (model HT250) with an anti-dumping design, and the bottom universal wheel 12 adopts an industrial-grade PU silent brake wheel (diameter 75mm) to ensure smooth movement and reliable positioning; the lifting rod 14 adopts a stainless steel telescopic tube (Φ25 / Φ30mm), and cooperates with the bolt locking mechanism to adjust the height range from 900mm to 1450mm; a PP injection-molded storage tray (size 220×300mm) is set on one side of the top of the vertical tube to facilitate the storage of instruments required for medical operations.

[0042] In the comparative case, a traditional static infusion stand is used, which is inconvenient to follow the patient in the frequent movement of the neurological intensive care bed, and the fixed height is not conducive to the operation of the nursing staff; this embodiment provides dual functions of movement and height adjustment, which significantly improves adaptability and ease of operation.

[0043] Example 6: Design of limited heating and anti-pulling structure of infusion tube In this embodiment, the electric heating block 51 adopts an aluminum shell covered with a silicone heating sheet structure, with a rated power of 15W, and a constant temperature output to maintain the temperature of the infusion tube at 35~38°C; the limit hole 52 is lined with a high-temperature silicone ring (thickness 2mm) to prevent heat loss and improve the limit fit; the double threaded rod 54 (M6×150mm) can realize the symmetrical movement of the two ABS sliders 55 by rotation, and an aluminum extrusion rod 56 is set on the front side to firmly press the infusion tube to prevent the counterweight structure from malfunctioning due to pulling during the monitoring process.

[0044] In the comparative case, no heating and limiting structure was set. During the test, the infusion tube was loosened by the collision of the patient, causing the counterweight lever to respond prematurely and trigger a false alarm. In this embodiment, the limiting structure ensures that the pipeline is fixed, and the heating module improves the patient's discomfort under low temperature, and the overall monitoring is more stable and reliable.

[0045] Working principle: When in use, the universal wheel 12 at the bottom is used to push the infusion stand mechanism 1 to move, and the height of the lifting rod 14 is adjusted according to the actual use situation. When the medicine is not hung, due to the existence of the first spring 39 and the deadweight of the counterweight block 38, the four counterweight blocks 38 are placed at the bottom of the stroke and are limited by the limit plate 371. At this time, the tilting rod 33 can be pulled by the connecting rod 35 to make the outer end of the tilting rod 33 tilt up, and then according to the amount of medicine, the medicine bottle is hooked on the hook 34 at the position of the corresponding counterweight block 38. At this time, the outer end of the hook 34 will move downward due to the weight, and then the tilting rod 33 will rotate, so as to drive the corresponding counterweight block 38 to move up along the fixing bolt 37 through the connecting rod 35, and squeeze the first spring 39 to store force, and then rotate the rotating disk 31, so that the medicine bottle being infused at this time corresponds to the laser receiver 24, and then the counterweight block 38 is placed above the laser receiver 24 and the laser generator 23; After continuous infusion, the downward pulling force of the medicine bottle on the hook 34 decreases until the medicine bottle is emptied. At this time, the sum of the weight of the counterweight 38 and the downward elastic force of the first spring 39 exerts a force on the tilting rod 33 that is greater than the empty bottle at the outer end, and the counterweight 38 will move downward. At this time, the counterweight 38 will enter between the laser generator 23 and the laser receiver 24. When the laser generator 23 and the laser receiver 24 detect the entry of the counterweight 38, a signal can be transmitted to the buzzer 26 and a buzzer can be sounded to remind medical workers. This structure controls the counterweight 38 according to the change in the weight of the medicine bottle, and judges whether the counterweight 38 enters the detection area, which can effectively ensure the stability of monitoring. Compared with the existing laser monitoring, it will not cause inaccurate monitoring due to the transparency of the medicine solution. Compared with the capacitive monitor, the weight sensor can prevent the occurrence of false alarms due to bubbles in the pipeline or changes in the charge of the medicine solution. The position of the rotating disk 31 is adjusted according to the amount of a single infusion, so that the corresponding counterweight 38 is placed between the laser generator 23 and the laser receiver 24. When adjusting, the pull rope 42 can be pulled down to make the positioning bolt 43 move down and disengage from the corresponding positioning hole 310. At this time, the rotating disk 31 can be rotated to adjust the position, and it can be marked on the outside to facilitate adjustment. After adjustment, the pull rope 42 is released. Due to the existence of the second spring 44, the positioning bolt 43 enters the corresponding positioning hole 310 to remain fixed. In order to prevent the buzzer 26 from sounding an alarm when not in use, there is a misalignment in the positioning hole 310 opened at the bottom of the rotating disk 31, so that the misaligned positioning hole 310 is matched with the positioning bolt 43 when not in use. At this time, the four counterweights 38 are all misaligned with the detection area; During winter infusion, the infusion tube can pass through the limiting hole 52 so as to be heated by the electric heating block 51 to prevent discomfort caused by the direct infusion of cold medicine into the body. After passing through the limiting hole 52, the infusion tube will pass between the two squeezing rods 56, and the two sliders 55 will be driven closer by rotating the fixing plate 53, and then the infusion tube will be clamped and fixed by the two squeezing rods 56 to prevent the patient's unconscious activities from pulling the infusion tube. If the infusion tube is pulled, its pulling force will not act on the tilting rod 33 to ensure the accuracy of monitoring.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An infusion monitoring device for critical neurological illness, comprising an infusion stand mechanism (1), characterized in that: A laser monitoring mechanism (2) is installed on the top of the infusion stand mechanism (1), and the laser monitoring mechanism (2) comprises a box (21), a column (22) is vertically arranged at the center of the box (21), a laser receiver (24) is arranged on one side of the surface of the column (22), and a laser generator (23) is arranged on the inner wall of one side of the box (21); A gravity detection mechanism (3) is rotatably mounted on the top of the box (21), the gravity detection mechanism (3) comprising a rotating disk (31) open upward, four groups of mounting plates (32) are evenly arranged on the outer side of the rotating disk (31), two mounting plates (32) are arranged in the same group, a tilting rod (33) is hinged between the two mounting plates (32), a hook (34) is downwardly mounted on the outer end of the tilting rod (33), a connecting rod (35) is hinged on the inner end of the tilting rod (33), a counterweight (38) is mounted on the bottom of the connecting rod (35) via a joint bearing, and the counterweight (38) is placed inside the box (21); A switching positioning mechanism (4) is provided on one side of the box body (21), and the switching positioning mechanism (4) is used to control the rotation angle of the gravity detection mechanism (3).

2. The infusion monitoring device for critical care neurology according to claim 1, characterized in that: The infusion stand mechanism (1) comprises a base (11) placed on the ground, universal wheels (12) are installed at the four corners of the bottom of the base (11), a vertical tube (13) is vertically arranged on the upper surface of the base (11), a lifting rod (14) is slidably installed on the top of the vertical tube (13), the lifting rod (14) and the vertical tube (13) are locked and fixed by bolts, and a storage tray (15) is fixed on one side of the top of the vertical tube (13).

3. The infusion monitoring device for critical neurological illness according to claim 1, characterized in that: A top cover (311) is screwed onto the top of the rotating disk (31), through holes (36) are evenly formed on the lower surface of the rotating disk (31), and a plurality of connecting rods (35) respectively penetrate the through holes (36). Four groups of fixing bolts (37) are evenly arranged at the bottom of the box body (21), and each group of fixing bolts (37) is provided with two fixing bolts (37). The two fixing bolts (37) in the same group are respectively placed on both sides of the corresponding through holes (36), and a limiting plate (371) is provided at the bottom of the fixing bolts (37).

4. The infusion monitoring device for critical neurological illness according to claim 3, characterized in that: The two sides of the counterweight block (38) slide on the surfaces of two fixing bolts (37) of the same group respectively. The surface of the fixing bolt (37) is sleeved with a first spring (39). The first spring (39) is placed above the counterweight block (38). The top of the first spring (39) contacts the lower surface of the rotating disk (31).

5. The infusion monitoring device for critical care neurology according to claim 4, characterized in that: The four counterweights (38) correspond to the weights of conventional infusion bottles of 50 ml, 100 ml, 250 ml and 500 ml, respectively.

6. The infusion monitoring device for critical care neurology according to claim 1, characterized in that: The lower surface of the rotating disk (31) is evenly provided with five positioning holes (310) with its axis as the center, four of which correspond to the tilting rods (33). An extension plate (25) is fixed to one side of the box body (21), and the switching positioning mechanism (4) is mounted on the extension plate (25).

7. The infusion monitoring device for critical care neurology according to claim 6, characterized in that: The switching positioning mechanism (4) comprises a sliding rod (41) that slides vertically on the surface of the extension plate (25); a pull rope (42) is connected to the bottom of the sliding rod (41); a positioning bolt (43) is arranged on the top of the sliding rod (41); the top of the positioning bolt (43) and the inner size of the positioning hole (310) are mutually adapted; a second spring (44) is sleeved on the surface of the sliding rod (41); and the second spring (44) is placed between the extension plate (25) and the positioning bolt (43).

8. The infusion monitoring device for critical care neurology according to claim 1, characterized in that: The front side of the surface of the infusion stand mechanism (1) is provided with an infusion tube limiting mechanism (5) for limiting and heating the infusion tube. The infusion tube limiting mechanism (5) comprises an electric heating block (51) fixed to one side of the top of the vertical tube (13). A limiting hole (52) is provided on one side of the electric heating block (51), and the infusion tube passes through the limiting hole (52) for heating.

9. The infusion monitoring device for critical care neurology according to claim 8, characterized in that: A fixing plate (53) is symmetrically arranged at the bottom of the electric heating block (51), a double-threaded rod (54) is rotatably mounted between the two fixing plates (53), a sliding block (55) is symmetrically screwed on the surface of the double-threaded rod (54), the two sliding blocks (55) are respectively placed on both sides of the limiting hole (52), and a squeezing rod (56) is arranged on the front side of the sliding block (55), and the two squeezing rods (56) are used to clamp and fix the infusion tube.

10. The infusion monitoring device for critical neurological illness according to claim 1, characterized in that: The laser receiver (24) corresponds to the laser generator (23), and a buzzer (26) is installed on the front surface of the box (21), and the buzzer (26) emits a buzzing sound when the corresponding counterweight (38) enters between the laser generator (23) and the laser receiver (24).

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