CN219090586U

CN219090586U - Infusion automatic medicine changing and supplementing device based on multi-weighing and multi-liquid level sensing technology

Info

Publication number: CN219090586U
Application number: CN202122212895.3U
Authority: CN
Inventors: 孟祥宝
Original assignee: Guangzhou Diandi Health Technology Co ltd
Current assignee: Guangzhou Diandi Health Technology Co ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2023-05-30
Anticipated expiration: 2031-09-13

Abstract

The utility model relates to an automatic medicine changing and supplementing device for transfusion based on a multi-weighing and multi-liquid level sensing technology, which has the technical scheme that: comprising the following steps: the infusion device comprises a frame, a multi-sensor weighing module for reading the weight of each infusion bag, an infusion tube assembly for connecting each infusion bag, an infusion control assembly for changing bottles and medicines, an automatic liquid supplementing assembly for supplementing liquid under the condition that the infusion tube assembly lacks liquid medicine, and a controller; the multi-sensor weighing module, the transfusion control assembly and the automatic fluid infusion assembly are sequentially arranged on the rack from top to bottom; one end of the infusion tube assembly is arranged on the infusion control assembly, and the other end of the infusion tube assembly is arranged on the automatic fluid infusion assembly; the multi-sensor weighing module, the infusion control assembly and the automatic fluid infusion assembly are electrically connected with the controller; the automatic medicine changing and transfusion device has the advantage of automatically changing and transfusion under the unattended condition.

Description

Infusion automatic medicine changing and supplementing device based on multi-weighing and multi-liquid level sensing technology

Technical Field

The utility model relates to the technical field of medical equipment, in particular to an automatic medicine changing and supplementing device for transfusion based on a multi-weighing and multi-liquid level sensing technology.

Background

Hospitals are very widespread in treating diseases by intravenous infusion, and the infusion used for the treatment of one disease often is not one bottle, basically is a plurality of bottles or a plurality of medicines. So that the transfusion is more than two bottles. In the infusion process, a nurse is required to frequently replace the liquid medicine, one bottle is beaten, and the infusion tube is pulled out and plugged once. Sometimes, one bottle is beaten, and the needle cannot be replaced or pulled out, so that blood returns and even medical accidents are caused.

In addition, in the existing transfusion technology, a patient or a nurse is required to be informed of pulling out the plug needle and changing the bottle, or the nurse is required to watch on the transfusion edge, when few liquid medicine is left, the patient needs to continuously observe the bottle up, the transfusion safety is ensured, the purpose of not wasting the liquid medicine is achieved, the needle is required to be changed in time, and the transfusion continuity is ensured; in general, infusion of inpatients exceeds three bottles, and under such conditions, nurses need to go to ward for a plurality of times to change liquid medicine, and call sounds are heard continuously, so that when nurses are busy, the liquid medicine is not changed or the needle is pulled out in time, and the infusion overflows, so that blood return is caused.

For the accompanying personnel of the patient, the patient needs to frequently lift the head to observe the infusion condition of the liquid medicine in the infusion process, and each bottle of liquid medicine infusion is completed and needs to timely contact a nurse to withdraw the needle and change the medicine, so that the fatigue of the accompanying personnel is increased, and anxiety is easily brought.

Therefore, a new technology is particularly needed to solve the problems that in the existing transfusion technology, nurses are required to change dressings frequently, and accompanying staff or nurses are required to look for frequent head lifting.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model aims to provide an automatic medicine changing and supplementing device for transfusion based on a multi-weighing and multi-liquid level sensing technology, which has the advantage of automatic medicine changing and transfusion under the unattended condition.

The technical aim of the utility model is realized by the following technical scheme: an automatic infusion medicine changing and supplementing device based on a multi-weighing and multi-liquid level sensing technology, comprising: the infusion device comprises a frame, a multi-sensor weighing module for reading the weight of each infusion bag, an infusion tube assembly for connecting each infusion bag, an infusion control assembly for changing bottles and medicines, an automatic liquid supplementing assembly for supplementing liquid under the condition that the infusion tube assembly lacks liquid medicine, and a controller; the multi-sensor weighing module, the transfusion control assembly and the automatic fluid infusion assembly are sequentially arranged on the rack from top to bottom; one end of the infusion tube assembly is arranged on the infusion control assembly, and the other end of the infusion tube assembly is arranged on the automatic fluid infusion assembly; the multi-sensor weighing module, the infusion control assembly and the automatic fluid infusion assembly are all electrically connected with the controller.

Optionally, the multi-sensor weighing module includes: a plurality of first weighing sensors for reading the weight of the infusion bag and a plurality of second weighing sensors for reading the total weight of all the infusion bags; the second weighing sensor is arranged on the rack; the first weighing sensors are arranged on the second weighing sensors; the first weighing sensors are electrically connected with the second weighing sensors; the second weighing sensor is electrically connected with the controller.

Optionally, the infusion tube assembly includes: the infusion device comprises a main infusion tube, a puncture needle, a drip chamber and a plurality of branch infusion tubes for connecting infusion bags; the plurality of infusion tubes are communicated with one end of the dropping funnel; the other end of the dropping funnel is communicated with one end of the branch infusion tube; the other end of the branch infusion tube is communicated with the puncture needle; the branch infusion tube is arranged on the infusion control assembly; the dropping funnel and the main infusion tube are both arranged on the automatic fluid infusion assembly.

Optionally, the infusion control assembly includes: the device comprises a plurality of branch pipe clamping mechanisms for clamping the branch infusion pipes, a plurality of branch pipe liquid level monitoring mechanisms for monitoring the liquid level of the branch infusion pipes and a mounting plate; the mounting bag is arranged on the rack; a plurality of through grooves which are in one-to-one correspondence with a plurality of infusion tubes are arranged on the mounting plate; the plurality of branch infusion tubes are arranged in the plurality of through grooves in a one-to-one correspondence manner; the branch pipe clamping mechanisms are arranged on the mounting plate; the branch pipe liquid level monitoring mechanisms are arranged on the mounting plate and are positioned above the branch pipe clamping mechanisms; and the plurality of branch pipe liquid level monitoring mechanisms and the plurality of branch pipe clamping mechanisms are electrically connected with the controller.

Optionally, the branch pipe clamping mechanism includes: a clamping pushing block, a clamping stop block and a telescopic motor; the telescopic motor is arranged on the mounting plate and is positioned at one side of the through groove; the clamping pushing block is arranged at the output end of the telescopic motor; the clamping stop block is arranged on the mounting plate and positioned on the other side of the through groove; the telescopic motor is electrically connected with the controller.

Optionally, the branch pipe liquid level monitoring mechanism includes: an ultrasonic bubble sensor and/or a capacitive sensor.

Optionally, the automatic fluid infusion assembly includes: the device comprises a mounting seat, a liquid drop monitoring mechanism for monitoring the liquid drop speed in a dropping funnel, a liquid level monitoring mechanism for monitoring the liquid level in the dropping funnel, a blocking mechanism for clamping a main infusion tube and an extrusion mechanism for extruding the dropping funnel; the mounting seat is arranged on the frame; the mounting seat is provided with a mounting groove matched with the dropping funnel and the main infusion tube; the dropping funnel and the main infusion tube are arranged in the mounting groove; the liquid drop monitoring mechanism is arranged on the mounting seat and is positioned at the upper end of the dropping funnel; the liquid level monitoring mechanism is arranged on the mounting seat and is positioned below the liquid drop monitoring mechanism; the extrusion mechanism is arranged on the mounting seat and is positioned below the liquid level monitoring mechanism; the blocking mechanism is arranged on the mounting seat and is positioned below the extrusion mechanism; the liquid drop monitoring mechanism, the liquid level monitoring mechanism, the blocking mechanism and the extrusion mechanism are all electrically connected with the controller.

Optionally, the pressing mechanism includes: the extrusion device comprises an extrusion motor, an extrusion block and an extrusion stop block; the extrusion motor is arranged on the mounting seat and is positioned at one side of the mounting groove; the extrusion block is arranged at the output end of the extrusion motor; the extrusion stop block is arranged on the mounting seat and positioned on the other side of the mounting groove; one end of the extrusion block facing the dropping funnel is arc-shaped; the extrusion motor is electrically connected with the controller.

Optionally, the blocking mechanism includes: the blocking motor, the blocking block and the blocking stop block; the blocking motor is arranged on the mounting seat and is positioned at one side of the mounting groove; the blocking block is arranged at the output end of the blocking motor; the blocking stop block is arranged on the mounting seat and positioned on the other side of the mounting groove; the blocking motor is electrically connected with the controller.

Optionally, the liquid level monitoring mechanism includes: a first liquid level sensor for monitoring the upper limit of the liquid level of the dropping funnel and a second liquid level sensor for monitoring the lower limit of the liquid level of the dropping funnel; the first liquid level sensor and the second liquid level sensor are both arranged on the mounting seat; the first liquid level sensor and the second liquid level sensor are electrically connected with the controller.

In summary, the utility model has the following beneficial effects:

1. the first weighing sensor and the second weighing sensor can display the independent weight and the total weight of each infusion bag, and calculate the residual infusion time and infusion efficiency;

2. the liquid level of each infusion tube can be monitored through the plurality of branch tube clamping mechanisms and the plurality of branch tube liquid level monitoring mechanisms, the corresponding branch infusion tube can be effectively clamped when the infusion is completed, and the next infusion tube is sequentially opened for infusion, so that the automatic bottle and medicine changing function is realized;

3. the liquid level in the dropping funnel can be monitored in real time through the first liquid level sensor and the second liquid level sensor, and when the liquid level is too low, the liquid supplementing mechanism is controlled to supplement liquid, so that the phenomenon of blood return caused by too low liquid level in the dropping funnel is effectively avoided.

Drawings

FIG. 1 is a block diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of the structure of the present utility model;

FIG. 3 is a schematic view showing the structure of the automatic fluid infusion assembly according to the present utility model.

In the figure: 1. a frame; 2. a multi-sensor weighing module; 21. a first load cell; 22. a second load cell; 31. a main infusion tube; 32. a dropping funnel; 33. a branch transfusion tube; 41. a branch pipe clamping mechanism; 411. clamping the pushing block; 412. a clamping stop; 413. a telescopic motor; 42. a branch pipe liquid level monitoring mechanism; 43. a mounting plate; 51. a mounting base; 52. a droplet monitoring mechanism; 53. a liquid level monitoring mechanism; 531. a first liquid level sensor; 532. a second liquid level sensor; 54. a blocking mechanism; 541. blocking the motor; 542. a blocking block; 543. a blocking stop; 55. an extrusion mechanism; 551. extruding a motor; 552. extruding a block; 553. extruding the stop block; 6. and a controller.

Detailed Description

In order that the objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Several embodiments of the utility model are presented in the figures. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances. The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature. The terms "vertical," "horizontal," "left," "right," "up," "down," and the like are used for descriptive purposes only and are not to indicate or imply that the devices or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

The present utility model will be described in detail below with reference to the accompanying drawings and examples.

The utility model provides an automatic medicine changing and supplementing device for transfusion based on a multi-weighing and multi-liquid level sensing technology, which is shown in figures 1-3 and comprises: the infusion system comprises a frame 1, a multi-sensor weighing module 2 for reading the weight of each infusion bag, an infusion tube assembly for connecting each infusion bag, an infusion control assembly for changing bottles and medicines, an automatic liquid supplementing assembly for supplementing liquid under the condition that the infusion tube assembly lacks liquid medicine, and a controller 6; the multi-sensor weighing module, the transfusion control assembly and the automatic fluid infusion assembly are sequentially arranged on the frame 1 from top to bottom; one end of the infusion tube assembly is arranged on the infusion control assembly, and the other end of the infusion tube assembly is arranged on the automatic fluid infusion assembly; the multi-sensor weighing module 2, the infusion control assembly and the automatic fluid infusion assembly are all electrically connected with the controller 6. The controller 6 may be a single chip microcomputer, an MCU, a PLC, etc., and in this embodiment, the MCU is selected.

In practical application, a plurality of groups of infusion bags are firstly hung on the multi-sensor weighing module 2 according to the infusion sequence; then sequentially inserting the infusion tube assembly into the infusion bag mouth, and fixing the infusion tube assembly on the infusion control assembly and the automatic fluid infusion assembly; during transfusion, the multi-sensor weighing module 2 can weigh the weight of each transfusion bag, can identify the total weight of all the transfusion bags so as to correct the transfusion efficiency of each transfusion bag, and calculates the residual transfusion time of the transfusion bag and the predicted transfusion time of each transfusion bag through the controller 6; after any infusion bag is finished, the infusion control assembly controls the infusion tube to switch, sequentially opens subsequent infusion bags, and closes the infusion bag which is finished with infusion at present, and because the liquid level position in the infusion tube assembly is low due to untimely switching in the switching process and the blood return risk exists, the automatic infusion supplementing assembly is additionally arranged to supplement the liquid medicine in the infusion tube assembly, and the safety of infusion is improved.

In practical application, a display for displaying the remaining infusion time of each infusion bag is also arranged on the stand 1, a wireless module is also arranged for carrying out data communication with a server, statistics is carried out through public application software, and the infusion condition of a patient is sent to the patient and nurses; the bar code reading device can be optionally configured so as to read the information of the infusion bag and the patient case information before hanging the infusion bag, thereby judging whether the infusion bag is matched with the patient information; and a video monitoring device is arranged, so that the real-time transfusion condition of the transfusion bag can be observed remotely, the information management and monitoring functions of transfusion are realized, the transfusion nursing work of a hospital is greatly facilitated, and the labor intensity of nurses is reduced.

Further, the multi-sensor weighing module includes: a plurality of first weighing sensors 21 for reading the weight of the infusion bag and a plurality of second weighing sensors 22 for reading the total weight of all the infusion bags; the second weighing sensor 22 is arranged on the rack 1; a plurality of first weighing sensors 21 are arranged on the second weighing sensor 22; the first weighing sensors 21 are electrically connected with the second weighing sensors 22; the second load cell 22 is electrically connected to the controller 6.

In practical application, the first weighing sensor 21 weighs the individual infusion bags to obtain the real-time weight of the individual infusion bags, and the second weighing sensor 22 weighs all the infusion bags to obtain the total weighing weight, for example, the number N of branches of the multi-branch infusion tube, so that N first weighing sensors 21 are arranged; in addition, a total weighing sensor is added as a second weighing sensor 22, and the counting device is beneficial to improving the monitoring precision and reducing the weight change caused by external influence; when the first weighing sensor 21 is inaccurate due to shaking of the infusion support or mutual stacking of the infusion bags, the influence of stacking of adjacent single bags is avoided because the weight of the second sensor is the sum of the accumulation of N infusion bags. When the infusion is started, the weight of two adjacent bags is impacted and stacked, so that the first weighing sensor 21 cannot accurately reflect the current infusion state of the current branch infusion tube 33, and the second weighing sensor 22 can accurately measure the total weight drop and compensate the reduction value of the infusion weight of the current branch infusion, thereby fully compensating the defect.

By way of example: assuming that n=3, the second load cell 22 is labeled N0, and the weight of each infusion bag is n1=n2=n3=250 g, the total weight weighed by the second load cell 22 is n0=n1+n2+n3=750 g, and the monitored weight of each of the branched first load cells 21 is 250 g. When the first infusion tube branch N1 is opened, the infusion is started by N1, the first weighing sensor 21 of the first branch monitors that the weight N1 starts to be reduced, and the total sensor N0 is also reduced; however, since the first bag is close to the second bag, the partial weight of the first bag is added to the weight of the second bag, the actual value of N1 is n1=230 g, and the actual load cell of the second bag displays a weight exceeding 250 g, namely: n2=270 g, which causes a significantly slower infusion drop than 750 g of the second load cell 22NO, at which time the controller 6 corrects and recalculates the real-time display weight for each bag, redisplays the corrected weight value for each bag, and supplements the infusion drop to the first branch based on the total drop.

Another example is: when the first weighing sensor 21 and the second weighing sensor 22 of the branched infusion bag have abrupt change of values at the same time, the system considers the influence of external force, the value given by the system is unchanged, and the infusion process is not affected under the condition of unchanged dropping speed. When the whole infusion support is not subjected to external action, but the single-branch infusion bag is subjected to external action, the first weighing sensor of the infusion branch is suddenly changed, and the second weighing sensor 22 is also suddenly changed in value, the weight value of the branch is also controlled to be unchanged, and the infusion accuracy is improved.

Optionally, the infusion tube assembly includes: a main infusion tube 31, a puncture needle, a drip chamber 32 and a plurality of branch infusion tubes 33 for connecting infusion bags; a plurality of the infusion tubes 33 are communicated with one end of the dropping funnel 32; the other end of the dropping funnel 32 is communicated with one end of the branch infusion tube 33; the other end of the branch infusion tube 33 is communicated with the puncture needle; the branch infusion tube 33 is arranged on the infusion control assembly; the drip chamber 32 and the main infusion tube 31 are both arranged on the automatic fluid infusion assembly. The infusion control assembly controls whether the branch infusion tube 33 is communicated with the drip chamber 32 or not, and the corresponding infusion bag can be controlled to carry out infusion or cut off; when the liquid is required to be replenished, the main infusion tube 31 is clamped by the automatic liquid replenishing component, the drip chamber 32 is extruded, and the air in the drip chamber 32 is lifted into the infusion bag to replenish the liquid medicine in the drip chamber 32.

Optionally, the infusion control assembly comprises: a plurality of branch pipe clamping mechanisms 41 for clamping the branch infusion pipes 33, a plurality of branch pipe liquid level monitoring mechanisms 42 for monitoring the liquid level of the branch infusion pipes 33, and a mounting plate 43; the installation package is arranged on the frame 1; a plurality of through grooves which are in one-to-one correspondence with the plurality of infusion tubes 33 are arranged on the mounting plate 43; the plurality of branch infusion tubes 33 are arranged in the plurality of through grooves in a one-to-one correspondence manner; a plurality of branch pipe clamping mechanisms 41 are arranged on the mounting plate 43; the plurality of branch pipe liquid level monitoring mechanisms 42 are arranged on the mounting plate 43 and are positioned above the branch pipe clamping mechanisms 41; the plurality of branch pipe liquid level monitoring mechanisms 42 and the plurality of branch pipe clamping mechanisms 41 are electrically connected with the controller 6. The liquid level of each infusion tube 33 is monitored by the branch tube liquid level monitoring mechanism 42, and after the liquid level of any infusion tube 33 is monitored to be lower than the branch tube liquid level monitoring mechanism 42, the controller 6 controls the branch tube clamping mechanism 41 to clamp the branch tube, and sequentially opens the branch tube clamping mechanisms 41 of the next infusion bag, so that the liquid medicine in the next infusion bag flows into the drip chamber 32.

Further, the branch pipe clamping mechanism 41 includes: a clamp push block 411, a clamp stop 412, and a telescoping motor 413; the telescopic motor 413 is arranged on the mounting plate 43 and positioned at one side of the through groove; the clamping pushing block 411 is arranged at the output end of the telescopic motor 413; the clamping block 412 is arranged on the mounting plate 43 and positioned on the other side of the through groove; the telescopic motor 413 is electrically connected to the controller 6. When the branch infusion tube 33 needs to be clamped, the telescopic motor 413 pushes the clamping pushing block 411 to move towards the clamping stop block 412, and the branch infusion tube 33 is extruded and clamped by the clamping pushing block 411 and the clamping stop block 412, so that the infusion bag corresponding to the branch infusion tube 33 is completely separated from the drip chamber 32.

Further, the branch pipe liquid level monitoring mechanism 42 includes: an ultrasonic bubble sensor and/or a capacitive sensor. Since a part of the liquid medicine needs to be subjected to light-shielding transfusion, a light-shielding transfusion tube also exists in a transfusion tube commonly used in hospitals, and for the transfusion tube, an ultrasonic bubble sensor and a capacitance sensor can accurately monitor the liquid level condition in the branch transfusion tube 33.

Further, the automatic fluid infusion assembly comprises: a mounting seat 51, a liquid drop monitoring mechanism 52 for monitoring the liquid drop speed in the dropping funnel 32, a liquid level monitoring mechanism 53 for monitoring the liquid level in the dropping funnel 32, a blocking mechanism 54 for clamping the main infusion tube 31, and a squeezing mechanism 55 for squeezing the dropping funnel 32; the mounting seat 51 is arranged on the frame 1; the mounting seat 51 is provided with a mounting groove matched with the dropping funnel 32 and the main infusion tube 31; the drip chamber 32 and the main infusion tube 31 are both arranged in the mounting groove; the drop monitoring mechanism 52 is arranged on the mounting seat 51 and is positioned at the upper end of the dropping funnel 32; the liquid level monitoring mechanism 53 is arranged on the mounting seat 51 and is positioned below the liquid drop monitoring mechanism 52; the extrusion mechanism 55 is arranged on the mounting seat 51 and is positioned below the liquid level monitoring mechanism 53; the blocking mechanism 54 is disposed on the mounting base 51 and below the pressing mechanism 55; the liquid drop monitoring mechanism 52, the liquid level monitoring mechanism 53, the blocking mechanism 54 and the pressing mechanism 55 are all electrically connected with the controller 6.

The drop monitoring mechanism 52 can monitor the drop speed of drops, can calculate the infusion residual time by combining the first weighing sensor 21 and the second weighing sensor 22, can adjust the infusion time by controlling the drop speed, and can record the counted real-time drop speed into the system; the liquid level monitoring mechanism 53 monitors the liquid level in the dropping funnel 32, and the controller 6 controls the blocking mechanism 54, the extruding mechanism 55 and the branch pipe clamping mechanism 41 to be matched according to the liquid level condition in the dropping funnel 32 so as to adjust the liquid level in the dropping funnel 32;

because air exists in the branch infusion tube 33, when the infusion bags are switched, the air in the branch infusion tube 33 enters the drip chamber 32, so that the liquid level in the drip chamber 32 is reduced, when the liquid level is lower, the controller 6 controls the blocking mechanism 54 to clamp the main infusion tube 31, then starts the branch pipe clamping mechanism 41 to clamp the branch infusion tube 33 corresponding to the infusion bag which is currently used for infusion, opens the branch infusion tube 33 corresponding to the infusion bag which is already used for infusion, simultaneously controls the extrusion mechanism 55 to extrude the drip chamber 32, the air in the drip chamber 32 enters the infusion bag which is already used for infusion, after the extrusion mechanism 55 reaches the maximum stroke, the branch pipe clamping mechanism 41 closes the branch infusion tube 33 corresponding to the infusion bag which is currently used for infusion, and controls the extrusion mechanism 55 to retract, the drip chamber 32 rebounds and rapidly supplements the liquid medicine in the infusion bag which is currently used for infusion into the drip chamber 32, and the operation is repeated for a plurality of times, after the liquid level monitoring mechanism 53 monitors the liquid level in the drip chamber 32 to be normal, the blocking mechanism is controlled to open the main infusion tube 31, and the drip chamber 32 is effectively prevented from dropping the liquid level from being continuously lowered due to the fact that the liquid level in the drip chamber 32 is continuously.

Further, the pressing mechanism 55 includes: a pressing motor 551, a pressing block 552, and a pressing stopper 553; the extrusion motor 551 is disposed on the mounting base 51 and located at one side of the mounting groove; the extrusion block 552 is disposed at an output end of the extrusion motor 551; the pressing stop 553 is arranged on the mounting seat 51 and positioned on the other side of the mounting groove; the end of the extrusion block 552 facing the dropping funnel 32 is arc-shaped; the pressing motor 551 is electrically connected to the controller 6. When the drip chamber 32 needs to be extruded, the extrusion block 552 is driven to move towards the extrusion stop block 553 by the extrusion motor 551, so that the drip chamber 32 is extruded and deformed by the extrusion block 552 and the extrusion stop block 553, and the liquid supplementing operation can be performed; and the impact on the drip chamber 32 can be reduced by forming one end of the squeeze piece 552 in an arc shape.

Further, the blocking mechanism 54 includes: a blocking motor 541, a blocking block 542, and a blocking stopper 543; the blocking motor 541 is disposed on the mounting base 51 and located at one side of the mounting groove; the blocking block 542 is disposed at an output end of the blocking motor 541; the blocking block 543 is arranged on the mounting seat 51 and is positioned on the other side of the mounting groove; the blocking motor 541 is electrically connected to the controller 6. When the main infusion tube 31 needs to be clamped, the controller 6 controls the blocking motor 541 to push the blocking block 542 to move towards the blocking block 543, so that the main infusion tube 31 is clamped under the action of the blocking block 542 and the blocking block 543.

Further, the liquid level monitoring mechanism 53 includes: a first level sensor 531 for monitoring an upper limit of the liquid level of the drip chamber 32, and a second level sensor 532 for monitoring a lower limit of the liquid level of the drip chamber 32; the first liquid level sensor 531 and the second liquid level sensor 532 are both disposed on the mounting base 51; the first liquid level sensor 531 and the second liquid level sensor 532 are electrically connected to the controller 6. In practical applications, it is necessary to control the liquid level in the drip chamber 32 between the first liquid level sensor 531 and the second liquid level sensor 532, so that the upper limit of the liquid level in the drip chamber 32 is monitored by the first liquid level sensor 531, and the lower limit of the liquid level in the drip chamber 32 is monitored by the second liquid level sensor 532, wherein the first liquid level sensor 531 and the second liquid level sensor 532 are ultrasonic bubble sensors or capacitance sensors; during normal transfusion, the first liquid level sensor 531 does not monitor the liquid level, and the second liquid level sensor monitors the liquid level; when the liquid level is too low, the first liquid level sensor 531 does not monitor the liquid level, the second liquid level sensor does not monitor the liquid level, at this time, the controller 6 controls the blocking motor 541 to clamp the main infusion tube 31, controls the telescopic motor 413 to clamp the branch infusion tube 33 which is being infused, and opens the branch infusion tube 33 which is completed infused, meanwhile, controls the extrusion motor 551 to push the extrusion block 552 to extrude the drip chamber 32, pushes the air in the drip chamber 32 into the infusion bag which is completed infused, then clamps the branch infusion tube 33, and opens the branch infusion tube 33 which needs to be infused, at this time, the extrusion motor 551 resets, the drip chamber 32 rebounds, the liquid medicine in the infusion bag is rapidly supplemented into the drip chamber 32 under the influence of gravity and pressure, after the drip chamber 32 completely rebounds, the second liquid level sensor monitors the liquid level, the controller 6 controls the blocking motor 541 to reset, the main infusion tube 31 to conduct, and continue infusion; the first liquid level sensor also monitors the liquid level, at this time, the liquid level in the drip chamber 32 is too high, which may cause the condition of insufficient transfusion of the patient, at this time, the branch transfusion tube 33 corresponding to the current transfusion bag can be clamped, the branch transfusion tube 33 corresponding to the transfusion bag which has completed transfusion is opened, the outside air enters the drip chamber 32 through the branch transfusion tube 33, so that the liquid in the drip chamber 32 is rapidly consumed, until the liquid level in the drip chamber 32 is lower than the first liquid level sensor, the branch transfusion tube 33 is immediately clamped, the branch transfusion tube 33 corresponding to the current transfusion bag is opened, and the transfusion is continued, thereby realizing the automatic control of the liquid level of the drip chamber 32.

The automatic medicine changing and supplementing device for transfusion based on the multi-weighing and multi-liquid level sensing technology can automatically perform bottle changing and medicine changing operation, automatically adjust the liquid level in the drip chamber, display real-time transfusion progress, and realize the provision of all transfusion information data required by intelligent nursing, such as real-time dripping speed, remote setting of the dripping speed, and the starting time and the cut-off time of dripping.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims

1. An automatic infusion medicine changing and supplementing device based on a multi-weighing and multi-liquid level sensing technology is characterized by comprising: the infusion device comprises a frame, a multi-sensor weighing module for reading the weight of each infusion bag, an infusion tube assembly for connecting each infusion bag, an infusion control assembly for changing bottles and medicines, an automatic liquid supplementing assembly for supplementing liquid under the condition that the infusion tube assembly lacks liquid medicine, and a controller; the multi-sensor weighing module, the transfusion control assembly and the automatic fluid infusion assembly are sequentially arranged on the rack from top to bottom; one end of the infusion tube assembly is arranged on the infusion control assembly, and the other end of the infusion tube assembly is arranged on the automatic fluid infusion assembly; the multi-sensor weighing module, the infusion control assembly and the automatic fluid infusion assembly are all electrically connected with the controller.

2. The automatic changing and supplementing device for transfusion based on multi-weighing and multi-liquid level sensing technology as set forth in claim 1, wherein the multi-sensor weighing module comprises: a plurality of first weighing sensors for reading the weight of the infusion bag and a plurality of second weighing sensors for reading the total weight of all the infusion bags; the second weighing sensor is arranged on the rack; the first weighing sensors are arranged on the second weighing sensors; the first weighing sensors are electrically connected with the second weighing sensors; the second weighing sensor is electrically connected with the controller.

3. The automatic changing and supplementing infusion device based on the multi-weighing and multi-liquid level sensing technology according to claim 1, wherein the infusion tube assembly comprises: the infusion device comprises a main infusion tube, a puncture needle, a drip chamber and a plurality of branch infusion tubes for connecting infusion bags; the plurality of infusion tubes are communicated with one end of the dropping funnel; the other end of the dropping funnel is communicated with one end of the branch infusion tube; the other end of the branch infusion tube is communicated with the puncture needle; the branch infusion tube is arranged on the infusion control assembly; the dropping funnel and the main infusion tube are both arranged on the automatic fluid infusion assembly.

4. The automatic changing and supplementing device for infusion based on the multi-weighing and multi-liquid level sensing technology according to claim 3, wherein the infusion control assembly comprises: the device comprises a plurality of branch pipe clamping mechanisms for clamping the branch infusion pipes, a plurality of branch pipe liquid level monitoring mechanisms for monitoring the liquid level of the branch infusion pipes and a mounting plate; the mounting plate is arranged on the frame; a plurality of through grooves which are in one-to-one correspondence with a plurality of infusion tubes are arranged on the mounting plate; the plurality of branch infusion tubes are arranged in the plurality of through grooves in a one-to-one correspondence manner; the branch pipe clamping mechanisms are arranged on the mounting plate; the branch pipe liquid level monitoring mechanisms are arranged on the mounting plate and are positioned above the branch pipe clamping mechanisms; and the plurality of branch pipe liquid level monitoring mechanisms and the plurality of branch pipe clamping mechanisms are electrically connected with the controller.

5. The automatic changing and supplementing device for transfusion based on multi-weighing and multi-liquid level sensing technology as set forth in claim 4, wherein the branch pipe clamping mechanism comprises: a clamping pushing block, a clamping stop block and a telescopic motor; the telescopic motor is arranged on the mounting plate and is positioned at one side of the through groove; the clamping pushing block is arranged at the output end of the telescopic motor; the clamping stop block is arranged on the mounting plate and positioned on the other side of the through groove; the telescopic motor is electrically connected with the controller.

6. The automatic medicine changing and supplementing device for transfusion based on the multi-weighing and multi-liquid level sensing technology as set forth in claim 4, wherein the branch pipe liquid level monitoring mechanism comprises: an ultrasonic bubble sensor and/or a capacitive sensor.

7. The automatic infusion, changing and supplementing device based on the multi-weighing and multi-liquid level sensing technology according to claim 3, wherein the automatic supplementing assembly comprises: the device comprises a mounting seat, a liquid drop monitoring mechanism for monitoring the liquid drop speed in a dropping funnel, a liquid level monitoring mechanism for monitoring the liquid level in the dropping funnel, a blocking mechanism for clamping a main infusion tube and an extrusion mechanism for extruding the dropping funnel; the mounting seat is arranged on the frame; the mounting seat is provided with a mounting groove matched with the dropping funnel and the main infusion tube; the dropping funnel and the main infusion tube are arranged in the mounting groove; the liquid drop monitoring mechanism is arranged on the mounting seat and is positioned at the upper end of the dropping funnel; the liquid level monitoring mechanism is arranged on the mounting seat and is positioned below the liquid drop monitoring mechanism; the extrusion mechanism is arranged on the mounting seat and is positioned below the liquid level monitoring mechanism; the blocking mechanism is arranged on the mounting seat and is positioned below the extrusion mechanism; the liquid drop monitoring mechanism, the liquid level monitoring mechanism, the blocking mechanism and the extrusion mechanism are all electrically connected with the controller.

8. The automatic changing and supplementing device for transfusion based on multi-weighing and multi-liquid level sensing technology as set forth in claim 7, wherein the squeezing mechanism comprises: the extrusion device comprises an extrusion motor, an extrusion block and an extrusion stop block; the extrusion motor is arranged on the mounting seat and is positioned at one side of the mounting groove; the extrusion block is arranged at the output end of the extrusion motor; the extrusion stop block is arranged on the mounting seat and positioned on the other side of the mounting groove; one end of the extrusion block facing the dropping funnel is arc-shaped; the extrusion motor is electrically connected with the controller.

9. The automatic changing and supplementing device for transfusion based on multi-weighing and multi-liquid level sensing technology according to claim 7, wherein the blocking mechanism comprises: the blocking motor, the blocking block and the blocking stop block; the blocking motor is arranged on the mounting seat and is positioned at one side of the mounting groove; the blocking block is arranged at the output end of the blocking motor; the blocking stop block is arranged on the mounting seat and positioned on the other side of the mounting groove; the blocking motor is electrically connected with the controller.

10. The automatic infusion, changing and supplementing device based on the multi-weighing and multi-liquid level sensing technology according to claim 7, wherein the liquid level monitoring mechanism comprises: a first liquid level sensor for monitoring the upper limit of the liquid level of the dropping funnel and a second liquid level sensor for monitoring the lower limit of the liquid level of the dropping funnel; the first liquid level sensor and the second liquid level sensor are both arranged on the mounting seat; the first liquid level sensor and the second liquid level sensor are electrically connected with the controller.