CN113730722A - Automatic medicine changing and supplementing device for transfusion based on multi-weighing and multi-liquid level sensing technology - Google Patents
Automatic medicine changing and supplementing device for transfusion based on multi-weighing and multi-liquid level sensing technology Download PDFInfo
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- CN113730722A CN113730722A CN202111068209.8A CN202111068209A CN113730722A CN 113730722 A CN113730722 A CN 113730722A CN 202111068209 A CN202111068209 A CN 202111068209A CN 113730722 A CN113730722 A CN 113730722A
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- 239000007788 liquid Substances 0.000 title claims abstract description 173
- 238000005303 weighing Methods 0.000 title claims abstract description 83
- 239000003814 drug Substances 0.000 title claims abstract description 43
- 230000001502 supplementing effect Effects 0.000 title claims abstract description 32
- 238000005516 engineering process Methods 0.000 title claims abstract description 19
- 238000001802 infusion Methods 0.000 claims abstract description 254
- 239000012530 fluid Substances 0.000 claims abstract description 23
- 229940079593 drug Drugs 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 6
- 230000007246 mechanism Effects 0.000 claims description 107
- 238000012544 monitoring process Methods 0.000 claims description 66
- 230000000903 blocking effect Effects 0.000 claims description 52
- 238000001125 extrusion Methods 0.000 claims description 40
- 230000008859 change Effects 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 3
- 230000009469 supplementation Effects 0.000 claims 2
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000008280 blood Substances 0.000 description 5
- 210000004369 blood Anatomy 0.000 description 5
- 230000009467 reduction Effects 0.000 description 4
- 239000013589 supplement Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000474 nursing effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000003978 infusion fluid Substances 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
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- 239000000243 solution Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16831—Monitoring, detecting, signalling or eliminating infusion flow anomalies
- A61M5/1684—Monitoring, detecting, signalling or eliminating infusion flow anomalies by detecting the amount of infusate remaining, e.g. signalling end of infusion
- A61M5/16845—Monitoring, detecting, signalling or eliminating infusion flow anomalies by detecting the amount of infusate remaining, e.g. signalling end of infusion by weight
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3379—Masses, volumes, levels of fluids in reservoirs, flow rates
- A61M2205/3389—Continuous level detection
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- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention relates to an automatic medicine changing and supplementing device for transfusion based on multi-weighing and multi-liquid level sensing technology, which has the technical scheme that: the method comprises the following steps: the automatic infusion device comprises a rack, 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 changing medicines, an automatic fluid infusion assembly for supplementing fluid under the condition that the infusion tube assembly is lack of fluid medicine, and a controller; the multi-sensor weighing module, the infusion control assembly and the automatic liquid supplementing 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-sensing weighing module, the infusion control assembly and the automatic liquid supplementing assembly are all electrically connected with the controller; the infusion bottle has the advantage of automatic medicine changing and infusion under the unattended condition.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to an automatic medicine changing and supplementing device for transfusion based on multi-weighing and multi-liquid-level sensing technologies.
Background
Hospitals treat diseases by intravenous infusion, and the infusion used for treating one disease is not always one bottle, but is basically a plurality of bottles or a plurality of medicines. So the infusion is more than two bottles or even more. During the infusion process, a nurse needs to frequently replace the liquid medicine, fill a bottle and pull out and insert a disposable infusion tube. Sometimes, a bottle is used up, and the needle is not replaced or pulled out, so that blood returns and even medical accidents are caused.
In addition, in the existing transfusion technology, a patient or accompanying nursing is required to inform a nurse to pull and insert a needle to change a bottle, or the nurse keeps on the side of transfusion to watch, when little liquid medicine is left, continuous head raising observation is required, the transfusion safety is ensured, the liquid medicine is not wasted, the needle needs to be changed in time, and the continuity of the transfusion is ensured; the general infusion of inpatient can exceed three bottles, and under such condition, the nurse will go to the ward many times and go to change the liquid medicine, still continuous hearing calling sound, when having the nurse very busy, untimely change liquid medicine or pull out the needle, the infusion overflows, causes the blood return.
For the accompanying staff of the patient, the accompanying staff needs to frequently raise the head to observe the infusion condition of the liquid medicine during the infusion process of the patient, and each bottle of liquid medicine needs to contact a nurse to pull out the needle and change the medicine after the infusion is completed, so that the fatigue of the accompanying staff is increased, and the anxiety mood is easily brought.
Therefore, a new technology is particularly needed to solve the problems that in the prior infusion technology, a nurse needs to change the medicine frequently, and an attendant or a nurse needs to check the frequent head-up.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an automatic transfusion medicine changing and supplementing device based on multi-weighing and multi-liquid-level sensing technologies, which has the advantage of automatic medicine changing and transfusion under the unattended condition.
The technical purpose of the invention is realized by the following technical scheme: an automatic device of changing dressings of infusion based on many weighing and many liquid level sensing technique includes: the automatic infusion device comprises a rack, 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 changing medicines, an automatic fluid infusion assembly for supplementing fluid under the condition that the infusion tube assembly is lack of fluid medicine, and a controller; the multi-sensor weighing module, the infusion control assembly and the automatic liquid supplementing 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-sensing weighing module, the infusion control assembly and the automatic liquid supplementing assembly are all electrically connected with the controller.
Optionally, the multi-sensor weighing module includes: the weighing system comprises a plurality of first weighing sensors for reading the weight of infusion bags 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 plurality of first weighing sensors are arranged on the second weighing sensor; the plurality of 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 comprises: the infusion device comprises a main infusion tube, a puncture needle, a dropping funnel and a plurality of branch infusion tubes for connecting infusion bags; the plurality of branch transfusion 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 transfusion tube; the other end of the branch transfusion tube is communicated with the puncture needle; the branch transfusion tube is arranged on the transfusion control component; the dropping funnel and the main infusion tube are both arranged on the automatic liquid supplementing assembly.
Optionally, the infusion control assembly comprises: a plurality of branch pipe clamping mechanisms for clamping 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 installation package is arranged on the rack; a plurality of through grooves which are in one-to-one correspondence with the plurality of infusion tubes are arranged on the mounting plate; the branch infusion tubes are arranged in the through grooves in a one-to-one correspondence manner; the plurality of branch pipe clamping mechanisms are arranged on the mounting plate; the plurality of branch pipe liquid level monitoring mechanisms are arranged on the mounting plate and are positioned above the branch pipe clamping mechanisms; 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: the clamping push block, the clamping stop block and the telescopic motor are arranged on the base; the telescopic motor is arranged on the mounting plate and is positioned on one side of the through groove; the clamping push block is arranged at the output end of the telescopic motor; the clamping stop block is arranged on the mounting plate and is 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 speed of liquid drops 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 rack; 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 both 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 motor, the extrusion block and the extrusion stop block; the extrusion motor is arranged on the mounting seat and is positioned on 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 is 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 comprises: the blocking device comprises a blocking motor, a blocking block and a blocking stop block; the blocking motor is arranged on the mounting seat and is positioned on 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 is 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: the device 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 both electrically connected with the controller.
In conclusion, the invention has the following beneficial effects:
1. the independent weight and the total weight of each infusion bag can be displayed through the first weighing sensor and the second weighing sensor, and the remaining infusion time and the infusion efficiency are calculated;
2. the liquid level of each branch infusion tube can be monitored through the branch tube clamping mechanisms and the branch tube liquid level monitoring mechanisms, the corresponding branch infusion tube can be effectively clamped when the infusion is finished, and the next infusion tube is opened in sequence 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 the liquid level is too low, then 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 present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view showing the structure of the automatic fluid infusion module according to the present invention.
In the figure: 1. a frame; 2. a multi-sensing weighing module; 21. a first weighing sensor; 22. a second load cell; 31. a main infusion tube; 32. a dropping funnel; 33. branch transfusion tube; 41. a branch pipe clamping mechanism; 411. clamping the push block; 412. clamping the stop block; 413. a telescopic motor; 42. a branch pipe liquid level monitoring mechanism; 43. mounting a plate; 51. a mounting seat; 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. blocking the stop block; 55. an extrusion mechanism; 551. an extrusion motor; 552. extruding the block; 553. extruding the stop block; 6. and a controller.
Detailed Description
In order to make the objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. Several embodiments of the invention are presented in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. The terms "first", "second" and "first" 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 defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature. The terms "vertical," "horizontal," "left," "right," "up," "down," and the like are used for descriptive purposes only and are not intended to indicate or imply that the referenced devices or elements must be in a particular orientation, configuration, and operation, and therefore should not be construed as limiting the present invention.
The invention is described in detail below with reference to the figures and examples.
The invention provides an automatic medicine changing and supplementing device for transfusion based on multi-weighing and multi-liquid level sensing technology, as shown in figures 1-3, comprising: the infusion bag weighing device comprises a rack 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 fluid infusion assembly for supplementing fluid under the condition that the infusion tube assembly is lack of fluid medicine, and a controller 6; the multi-sensor weighing module, the infusion control assembly and the automatic liquid supplementing assembly are sequentially arranged on the rack 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-sensing weighing module 2, the infusion control assembly and the automatic liquid supplementing assembly are all electrically connected with the controller 6. The controller 6 may be a single chip, MCU, PLC, etc., and MCU is selected in this embodiment.
In practical application, a plurality of groups of infusion bags are hung on the multi-sensor weighing module 2 according to the infusion sequence; then the infusion tube assemblies are inserted into the infusion bag openings in sequence, and the infusion tube assemblies are fixed on the infusion control assembly and the automatic fluid infusion assembly; during infusion, the multi-sensing weighing module 2 can weigh the weight of each infusion bag and identify the total weight of all the infusion bags so as to correct the infusion efficiency of each infusion bag, and the controller 6 calculates the remaining infusion time of each infusion bag and the estimated infusion time of each infusion bag; after the infusion of any infusion bag is completed, the infusion control component controls the infusion tube to be switched, the subsequent infusion bags are opened in sequence, the infusion bag which is currently completed with the infusion is closed, and because the liquid level position in the infusion tube component is lower due to untimely switching, the risk of blood return exists, the automatic liquid supplementing component is additionally arranged to supplement the liquid medicine in the infusion tube component, and the infusion safety is improved.
In practical application, a display used for displaying the remaining infusion time of each infusion bag is further arranged on the frame 1, a wireless module is further arranged to communicate data with a server, statistics is carried out through public application software, and the infusion condition of a patient is sent to the patient and a nurse; a bar code reading device can be configured according to the situation so as to read the information of the infusion bag and the patient case information before the infusion bag is hung, and therefore whether the infusion bag is matched with the patient information is judged; and a video monitoring device is configured, so that the real-time infusion condition of the infusion bag can be remotely observed, the information management and monitoring functions of infusion are realized, the infusion nursing work of a hospital is greatly facilitated, and the labor intensity of nurses is reduced.
Further, the multi-sensor weighing module comprises: a plurality of first weighing sensors 21 for reading the weight of the infusion bag and second weighing sensors 22 for reading the total weight of all the infusion bags; the second weighing sensor 22 is arranged on the frame 1; a plurality of first weighing sensors 21 are arranged on the second weighing sensor 22; the plurality of first weighing sensors 21 are electrically connected with the second weighing sensor 22; the second load cell 22 is electrically connected to the controller 6.
In practical application, the first weighing sensor 21 weighs an individual infusion bag to obtain a real-time weight of the individual infusion bag, and the second weighing sensor 22 weighs all infusion bags to obtain a total weighing weight, for example, the number N of branches of a multi-branch infusion tube, so that N first weighing sensors 21 are provided; in addition, a total weighing sensor is added and is a second weighing sensor 22, so that the counting device is beneficial to improving the monitoring precision and reducing the weight change caused by external influence; when the infusion support shakes or the first weighing sensor 21 is inaccurate due to the fact that the infusion bags are stacked mutually, the weight of the second weighing sensor is the sum of the N infusion bags, and therefore the first weighing sensor is not affected by the stacking of the adjacent single bags. When infusion is started, the weights of two adjacent bags collide with each other and are stacked, so that the first weighing sensor 21 cannot accurately reflect the current infusion situation of the branch infusion tube 33, and at the moment, the second weighing sensor 22 can accurately measure the total weight reduction and compensate the reduction value of the infusion weight of the branch infusion, and the defect is fully compensated.
For example: assuming that N is 3, the second load cell 22 is labeled as N0, and the infusion bag of each infusion fluid weighs N1, N2, N3, and 250 grams, the second load cell 22 weighs N0, N1, N2, N3, and 750 grams, and the monitored weight of each first load cell 21 of the branch is 250 grams. When the first infusion line branch N1 is opened, N1 begins infusion, the first load cell 21 of the first branch monitors that the weight N1 begins to decrease, while the total sensor N0 also decreases; however, since the first bag is too close to the second bag, a portion of the weight of the first bag adds up to the weight of the second bag, the actual value of N1 is N1 — 230 grams, and the actual load cell of the second bag displays a weight of over 250 grams, i.e.: when the reduction in infusion is significantly slower than 750 grams of the second load cell 22NO, 270 grams of N2, the controller 6 corrects and recalculates the real time displayed weight for each bag, re-displays the corrected weight value for each bag, and supplements the infusion reduction value for the first branch based on the total drop reduction.
For another example: when the infusion bag is in an instant overweight or weightless state due to collision or external shaking of the infusion support, the numerical values of all the first weighing sensors 21 and the second weighing sensors 22 at the moment are changed, and the numerical value for monitoring the infusion is inaccurate, so that when the first weighing sensors 21 and the second weighing sensors 22 of the branch infusion bags have numerical value mutation simultaneously, the system considers the influence of external force, the numerical value given by the system is unchanged, and the infusion process is not influenced under the condition that the dropping speed is unchanged. 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 changes suddenly, and meanwhile, the second weighing sensor 22 also has the same sudden change value, so that the weight value of the branch is controlled to be unchanged, and the accuracy of infusion is improved.
Optionally, the infusion tube assembly comprises: a main infusion tube 31, a puncture needle, a dropping funnel 32 and a plurality of branch infusion tubes 33 used for connecting infusion bags; a plurality of branch transfusion 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 transfusion tube 33; the other end of the branch transfusion tube 33 is communicated with the puncture needle; the branch transfusion tube 33 is arranged on the transfusion control component; the dropping funnel 32 and the main infusion tube 31 are both arranged on the automatic liquid supplementing assembly. Whether the branch infusion tube 33 is communicated with the drip chamber 32 is controlled by the infusion control component, and the corresponding infusion bag can be controlled to carry out infusion or cut off; when fluid infusion is needed, the main infusion tube 31 is clamped by the automatic fluid infusion assembly and the dropping funnel 32 is squeezed, so that air in the dropping funnel 32 rises into the infusion bag to replenish the liquid medicine in the dropping funnel 32.
Optionally, the infusion control assembly comprises: a plurality of branch clamping mechanisms 41 for clamping the branch transfusion tubes 33, a plurality of branch liquid level monitoring mechanisms 42 for monitoring the liquid level of the branch transfusion tubes 33 and a mounting plate 43; the installation package is arranged on the rack 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 branch infusion tubes 33 are correspondingly arranged in the through grooves one by one; the plurality of branch pipe clamping mechanisms 41 are all arranged on the mounting plate 43; the plurality of branch pipe liquid level monitoring mechanisms 42 are all arranged on the mounting plate 43 and are positioned above the branch pipe clamping mechanism 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 branch infusion tube 33 is monitored by the branch tube liquid level monitoring mechanism 42, and after the liquid level of any branch 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 opens the branch tube clamping mechanism 41 of the next infusion bag in sequence, so that the liquid medicine in the next infusion bag flows into the dropping funnel 32.
Further, the branch pipe clamp mechanism 41 includes: a clamping push block 411, a clamping stop 412 and a telescopic motor 413; the telescopic motor 413 is arranged on the mounting plate 43 and is positioned on one side of the through groove; the clamping push block 411 is arranged at the output end of the telescopic motor 413; the clamping stop 412 is arranged on the mounting plate 43 and is positioned at the other side of the through groove; the extension 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 push block 411 to move towards the clamping stop 412, so that the branch infusion tube 33 is squeezed and clamped by the clamping push block 411 and the clamping stop 412, and the infusion bag corresponding to the branch infusion tube 33 is completely separated from the drip chamber 32.
Further, the manifold liquid level monitoring mechanism 42 includes: an ultrasonic bubble sensor and/or a capacitive sensor. Because partial liquid medicine needs to be transfused in a dark place, the transfusion tube commonly used in hospitals also has a dark transfusion tube, and for the transfusion tube, the liquid level condition in the branch transfusion tube 33 can be accurately monitored by the ultrasonic bubble sensor and the capacitance sensor.
Further, the automatic fluid infusion assembly comprises: a mounting seat 51, a liquid drop monitoring mechanism 52 for monitoring the speed of liquid drops 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 liquid drop monitoring mechanism 52 is arranged on the mounting seat 51 and is positioned at the upper end of the drip chamber 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 squeezing mechanism 55 is arranged on the mounting seat 51 and is positioned below the liquid level monitoring mechanism 53; the blocking mechanism 54 is arranged on the mounting seat 51 and positioned below the pressing mechanism 55; the droplet monitoring mechanism 52, the liquid level monitoring mechanism 53, the blocking mechanism 54 and the squeezing mechanism 55 are all electrically connected to the controller 6.
The liquid drop monitoring mechanism 52 can monitor the dropping speed of the liquid drops, can be combined with the first weighing sensor 21 and the second weighing sensor 22 to calculate the remaining infusion time, can adjust the infusion time by controlling the dropping speed, and can record the counted real-time dropping speed into the system; the liquid level monitoring mechanism 53 monitors the liquid level in the drip chamber 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 drip chamber 32 so as to adjust the liquid level in the drip chamber 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 to cause the liquid level in the drip chamber 32 to drop, when the liquid level is lower, the controller 6 controls the blocking mechanism 54 to clamp the main infusion tube 31, then the branch clamping mechanism 41 is started to clamp the branch infusion tube 33 corresponding to the infusion bag which is currently infused, the branch infusion tube 33 corresponding to the infusion bag which is infused is opened, the squeezing mechanism 55 is controlled to squeeze the drip chamber 32, the air in the drip chamber 32 enters the infusion bag which is infused, after the squeezing mechanism 55 reaches the maximum stroke, the branch clamping mechanism 41 closes the branch infusion tube 33 corresponding to the infusion bag which is infused completely, opens the branch infusion tube 33 corresponding to the infusion bag which is currently infused, and controls the squeezing mechanism 55 to withdraw, the drip chamber 32 rebounds and quickly supplements the liquid medicine in the infusion bag which is currently infused to the drip chamber 32, the operations are repeated for a plurality of times, and after the liquid level monitoring mechanism 53 monitors that the liquid level in the dropping funnel 32 is normal, the blocking mechanism is controlled to open the main infusion tube 31 to continue infusion, so that the phenomenon of blood return caused by the lower liquid level in the dropping funnel 32 is effectively avoided.
Further, the pressing mechanism 55 includes: a pressing motor 551, a pressing block 552, and a pressing stopper 553; the extrusion motor 551 is arranged on the mounting seat 51 and is positioned at one side of the mounting groove; the extrusion block 552 is arranged at the output end of the extrusion motor 551; the pressing block 553 is disposed on the mounting seat 51 and located at the other side of the mounting groove; one 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 motor 551 drives the extrusion block 552 to move towards the extrusion stop 553, so that the drip chamber 32 is extruded and deformed by the extrusion block 552 and the extrusion stop 553, and then the liquid supplementing operation can be carried out; further, the one end of the pressing block 552 is formed in an arc shape, and the impact on the drip chamber 32 can be reduced.
Further, the blocking mechanism 54 includes: a blocking motor 541, a blocking block 542 and a blocking stopper 543; the blocking motor 541 is arranged on the mounting seat 51 and is positioned 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 located at 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 stopper 543, so that the main infusion tube 31 is clamped by the action of the blocking block 542 and the blocking stopper 543.
Further, the liquid level monitoring mechanism 53 includes: a first liquid level sensor 531 for monitoring the upper limit of the liquid level in the drip chamber 32, and a second liquid level sensor 532 for monitoring the lower limit of the liquid level in the drip chamber 32; the first liquid level sensor 531 and the second liquid level sensor 532 are both arranged on the mounting seat 51; the first and second liquid level sensors 531, 532 are both electrically connected to the controller 6. In practical application, the liquid level in the drip chamber 32 needs to be controlled to be 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, opens the branch infusion tube 33 which has completed infusion, simultaneously controls the extrusion motor 551 to push the extrusion block 552 to extrude the dropping funnel 32, pushes the air in the dropping funnel 32 into the infusion bag which has completed infusion, then clamps the branch infusion tube 33, opens the branch infusion tube 33 which needs infusion, at this time, the extrusion motor 551 resets, the dropping funnel 32 rebounds, the liquid medicine in the infusion bag is quickly supplemented into the dropping funnel 32 under the influence of gravity and pressure, after the dropping funnel 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 is conducted, and infusion is continued; the condition that the liquid level is monitored by the first liquid level sensor exists, the liquid level in the dropping funnel 32 is too high at the moment, and the condition that the infusion of a patient is insufficient can be caused, the branch infusion tube 33 corresponding to the current infusion bag can be clamped at the moment, the branch infusion tube 33 corresponding to the infusion bag which has completed the infusion is opened, the external air enters the dropping funnel 32 through the branch infusion tube 33, so that the liquid in the dropping funnel 32 is consumed rapidly, the branch infusion tube 33 is clamped immediately until the liquid level in the dropping funnel 32 is lower than the first liquid level sensor, the branch infusion tube 33 corresponding to the current infusion bag is opened to continue the infusion, and the automatic control of the liquid level of the dropping funnel 32 is realized.
The automatic medicine changing and supplementing device for transfusion based on the multi-weighing and multi-liquid-level sensing technology can automatically change bottles and medicines, automatically adjust the liquid level in the dropping funnel, display the real-time transfusion progress, and realize the provision of all transfusion information data required by intelligent nursing, such as real-time dropping speed, remote setting of the dropping speed, and the starting time and the ending time of dropping liquid.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (10)
1. The utility model provides an automatic device of changing dressings of infusion based on weigh more and many liquid level sensing technique, its characterized in that includes: the automatic infusion device comprises a rack, 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 changing medicines, an automatic fluid infusion assembly for supplementing fluid under the condition that the infusion tube assembly is lack of fluid medicine, and a controller; the multi-sensor weighing module, the infusion control assembly and the automatic liquid supplementing 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-sensing weighing module, the infusion control assembly and the automatic liquid supplementing assembly are all electrically connected with the controller.
2. The infusion automatic drug changing and supplementing device based on the multi-weighing and multi-liquid level sensing technology as claimed in claim 1, wherein the multi-sensor weighing module comprises: the weighing system comprises a plurality of first weighing sensors for reading the weight of infusion bags 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 plurality of first weighing sensors are arranged on the second weighing sensor; the plurality of first weighing sensors are electrically connected with the second weighing sensors; the second weighing sensor is electrically connected with the controller.
3. The automatic dressing change and replenishing device for infusion based on multiple weighing and multiple 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 dropping funnel and a plurality of branch infusion tubes for connecting infusion bags; the plurality of branch transfusion 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 transfusion tube; the other end of the branch transfusion tube is communicated with the puncture needle; the branch transfusion tube is arranged on the transfusion control component; the dropping funnel and the main infusion tube are both arranged on the automatic liquid supplementing assembly.
4. The automatic medicine changing and supplementing device for infusion based on the multi-weighing and multi-liquid level sensing technology as claimed in claim 3, wherein the infusion control assembly comprises: a plurality of branch pipe clamping mechanisms for clamping 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 installation package is arranged on the rack; a plurality of through grooves which are in one-to-one correspondence with the plurality of infusion tubes are arranged on the mounting plate; the branch infusion tubes are arranged in the through grooves in a one-to-one correspondence manner; the plurality of branch pipe clamping mechanisms are arranged on the mounting plate; the plurality of branch pipe liquid level monitoring mechanisms are arranged on the mounting plate and are positioned above the branch pipe clamping mechanisms; 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 medicine changing and supplementing device for infusion based on the multi-weighing and multi-liquid level sensing technology as claimed in claim 4, wherein the branch clamping mechanism comprises: the clamping push block, the clamping stop block and the telescopic motor are arranged on the base; the telescopic motor is arranged on the mounting plate and is positioned on one side of the through groove; the clamping push block is arranged at the output end of the telescopic motor; the clamping stop block is arranged on the mounting plate and is 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 infusion based on the multi-weighing and multi-liquid level sensing technology as claimed in claim 4, wherein the branch pipe liquid level monitoring mechanism comprises: an ultrasonic bubble sensor and/or a capacitive sensor.
7. The infusion automatic dressing change and drug supplementation device based on the multi-weighing and multi-liquid-level sensing technology as claimed in claim 3, wherein the automatic fluid supplementation assembly comprises: the device comprises a mounting seat, a liquid drop monitoring mechanism for monitoring the speed of liquid drops 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 rack; 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 both 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 medicine changing and supplementing device for infusion based on the multi-weighing and multi-liquid level sensing technology as claimed in claim 7, wherein the extruding mechanism comprises: the extrusion motor, the extrusion block and the extrusion stop block; the extrusion motor is arranged on the mounting seat and is positioned on 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 is 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 medicine changing and supplementing device for infusion based on the multi-weighing and multi-liquid level sensing technology as claimed in claim 7, wherein the blocking mechanism comprises: the blocking device comprises a blocking motor, a blocking block and a blocking stop block; the blocking motor is arranged on the mounting seat and is positioned on 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 is positioned on the other side of the mounting groove; the blocking motor is electrically connected with the controller.
10. The automatic medicine changing and supplementing device for infusion based on the multi-weighing and multi-liquid level sensing technology as claimed in claim 7, wherein the liquid level monitoring mechanism comprises: the device 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 both electrically connected with the controller.
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| CN202111068209.8A CN113730722B (en) | 2021-09-13 | 2021-09-13 | Infusion automatic medicine changing and supplementing device based on multi-weighing and multi-liquid level sensing technology |
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