CN113893059B - Needleless injection equipment and liquid medicine detection device thereof - Google Patents
Needleless injection equipment and liquid medicine detection device thereof Download PDFInfo
- Publication number
- CN113893059B CN113893059B CN202111063976.XA CN202111063976A CN113893059B CN 113893059 B CN113893059 B CN 113893059B CN 202111063976 A CN202111063976 A CN 202111063976A CN 113893059 B CN113893059 B CN 113893059B
- Authority
- CN
- China
- Prior art keywords
- liquid medicine
- detection
- storage bin
- oily
- medical fluid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 257
- 239000003814 drug Substances 0.000 title claims abstract description 192
- 238000001514 detection method Methods 0.000 title claims abstract description 176
- 238000002347 injection Methods 0.000 title claims abstract description 65
- 239000007924 injection Substances 0.000 title claims abstract description 65
- 238000003860 storage Methods 0.000 claims abstract description 65
- 238000012545 processing Methods 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000012530 fluid Substances 0.000 claims description 28
- 230000003287 optical effect Effects 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 2
- 238000004020 luminiscence type Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 9
- 239000003990 capacitor Substances 0.000 description 14
- 229960005486 vaccine Drugs 0.000 description 13
- 229940079593 drug Drugs 0.000 description 11
- 238000001802 infusion Methods 0.000 description 11
- 239000000243 solution Substances 0.000 description 11
- 244000144972 livestock Species 0.000 description 10
- 239000000126 substance Substances 0.000 description 10
- 230000000875 corresponding effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 230000000670 limiting effect Effects 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- 238000009395 breeding Methods 0.000 description 3
- 230000001488 breeding effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 241000283690 Bos taurus Species 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000010253 intravenous injection Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 241000282472 Canis lupus familiaris Species 0.000 description 1
- 241000282326 Felis catus Species 0.000 description 1
- 241000283973 Oryctolagus cuniculus Species 0.000 description 1
- 241001494479 Pecora Species 0.000 description 1
- 241000282887 Suidae Species 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000007920 subcutaneous administration Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000002255 vaccination Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
- A61D7/00—Devices or methods for introducing solid, liquid, or gaseous remedies or other materials into or onto the bodies of animals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V11/00—Prospecting or detecting by methods combining techniques covered by two or more of main groups G01V1/00 - G01V9/00
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention relates to a needleless injection device and a liquid medicine detection device thereof, wherein the needleless injection device comprises a liquid storage bin, wherein the liquid storage bin is internally provided with the liquid medicine detection device, and the liquid medicine detection device comprises an oily liquid medicine detection unit which is arranged in the liquid storage bin and is used for detecting whether oily liquid medicine exists in the liquid storage bin; the water-based liquid medicine detection unit is arranged in the liquid storage bin and is used for detecting whether water-based liquid medicine exists in the liquid storage bin or not; and a signal processing unit connected to the output end of the oily liquid medicine detection unit and the output end of the aqueous liquid medicine detection unit, and used for identifying the oily liquid medicine or the aqueous liquid medicine, and identifying the oily liquid medicine or the aqueous liquid medicine as the liquid medicine when the aqueous liquid medicine or the oily liquid medicine exists. The scheme realizes the rapid and accurate detection of the state of the liquid medicine storage in the liquid medicine injection process, and improves the liquid medicine injection efficiency and effectiveness.
Description
Technical Field
The invention relates to the technical field of automatic control. In particular, the present invention relates to a needleless injection apparatus and a liquid medicine detection device thereof.
Background
With the continuous development of the large-scale cultivation industry, the number of livestock in colony house areas (such as pig farms, cattle farms, etc.) of livestock raising species is continuously increasing. In the breeding process, in order to improve the breeding efficiency, it is necessary to minimize the spread of diseases among livestock in the housing area. Workers in the breeding area can choose to vaccinate livestock for a set period of time, so that the risk of livestock illness is effectively reduced. Because of the large number of populations in the colony house area, if a conventional vaccination mode is adopted, i.e. the same needle is adopted to inject a large number of populations, a large biosafety risk is necessarily brought, and if each livestock adopts a disposable injection material, a large number of needles and the like are required to be consumed. In order to effectively reduce the risk and the cost of needle use, a needleless injection technology is generally adopted at present, and medicines are pressed into skin through a super-strong special spring to form a superfine liquid bundle. The needleless injection equipment adopted in the needleless injection technology can realize one-time medicine taking and multiple injections, thereby effectively improving the injection efficiency and reducing the risk of infection diseases.
In the current needleless injection device, the liquid medicine in the vaccine bottle can be introduced into an injection liquid storage bin (liquid medicine bin) through an infusion tube (or liquid medicine tube) inside the device. In actual operation, if the stock of the liquid medicine in the liquid medicine injection bin cannot be detected in time, the phenomenon of empty injection of the needleless injection equipment is possibly caused, namely, the livestock without vaccine injection is actually considered to be injected, so that partial livestock miss-injection of the vaccine is caused, and potential safety hazards are brought to the immunity of the whole population. In addition, the existing vaccine has oily liquid medicine and aqueous liquid medicine, and the liquid medicine with two different properties also brings difficulty to the detection of the liquid medicine storage quantity.
Therefore, how to realize the rapid and accurate detection of the state of the liquid medicine stock in the liquid medicine injection process is important to prevent the occurrence of the phenomenon of 'needle punching'.
Disclosure of Invention
According to the scheme for detecting the liquid medicine in the liquid storage bin of the needleless injection device, the oily liquid medicine detection unit is used for detecting whether the oily liquid medicine exists or not, the aqueous liquid medicine detection unit is used for detecting whether the aqueous liquid medicine exists or not in the infusion tube, and therefore the signal processing unit can output a final detection result according to the two detection units, and accurate detection of whether the liquid medicine exists in the liquid storage bin or not is achieved.
To solve at least the above technical problems, in a first aspect, the present invention provides a medical fluid detection apparatus for a needleless injection device including a reservoir, comprising: the oily liquid medicine detection unit is arranged in the liquid storage bin and is used for detecting whether oily liquid medicine exists in the liquid storage bin or not; the water-based liquid medicine detection unit is arranged in the liquid storage bin and is used for detecting whether water-based liquid medicine exists in the liquid storage bin or not; and a signal processing unit connected to the output end of the oily liquid medicine detection unit and the output end of the aqueous liquid medicine detection unit, and used for identifying the oily liquid medicine or the aqueous liquid medicine, and identifying the oily liquid medicine or the aqueous liquid medicine as the liquid medicine when the aqueous liquid medicine or the oily liquid medicine exists.
In one embodiment, the aqueous liquid medicine detection unit comprises a capacitance detection circuit, and the capacitance detection circuit comprises at least one capacitance sensing module for judging whether the aqueous liquid medicine exists in the liquid storage bin according to a sensing capacitance value sensed by the capacitance sensing module.
In one embodiment, the capacitive sensing module comprises a metal sheet or a metal coil.
In one embodiment, the oily liquid medicine detection unit comprises a photoelectric detection circuit, the photoelectric detection circuit comprises a transmitting module, a receiving module and a photoelectric detection module, the input end of the photoelectric detection module is connected with the output end of the receiving module, and the output end of the photoelectric detection module is the output end of the oily liquid medicine detection unit and is used for judging whether the oily liquid medicine exists in the liquid storage bin according to the signal received by the receiving module.
In one embodiment, the photoelectric detection module comprises a comparator, one input end of the comparator is connected with the receiving module, and the other input end of the comparator is used for inputting a reference value so as to judge whether oily liquid medicine exists in the liquid storage bin according to the magnitude relation between the signal received by the receiving module and the reference value.
In one embodiment, the emission module comprises a light emitting diode for providing a light source for emitting light; the receiving module comprises a photosensitive receiving tube which is used for receiving the optical signal emitted by the luminous light source and converting the optical signal into an electric signal.
In one embodiment, the transmitting module and the receiving module are infrared geminate transistors, the transmitting module is an infrared transmitting tube, and the receiving module is a phototriode.
In one embodiment, the signal processing unit includes a logic or gate circuit, a first input terminal of the logic or gate circuit is connected to the output terminal of the capacitance detection circuit, and a second input terminal of the logic or gate circuit is connected to the output terminal of the photoelectric detection circuit, and is configured to perform a logical or operation on a level signal output by the capacitance detection circuit and a level signal output by the photoelectric detection circuit, so as to output a level signal representing a state of the liquid medicine.
In one embodiment, the medical fluid detection apparatus further comprises a power supply unit connected with the oily medical fluid detection unit, the aqueous medical fluid detection unit and the signal processing unit for providing a power supply.
In a second aspect, the present invention also provides a needleless injection apparatus comprising a reservoir in which the medical fluid detection device of the plurality of embodiments of the first aspect is disposed.
According to the invention, the liquid medicine detection device is arranged in the liquid storage bin, and the oily liquid medicine detection unit and the aqueous liquid medicine detection unit are utilized to respectively detect the oily liquid medicine and the aqueous liquid medicine in the liquid storage bin, so that the effective detection of the liquid medicine in the infusion tube is realized, and a worker can acquire liquid medicine information in time, so that the liquid medicine in the liquid storage bin can be conveniently and timely supplemented, and the effectiveness of the liquid medicine injection process is improved. Meanwhile, through the arrangement of the oily liquid medicine detection unit and the aqueous liquid medicine detection unit, the accurate identification of the oily liquid medicine and the aqueous liquid medicine is realized, so that the detection device can detect various liquid medicines, and the accuracy of the detection process is effectively improved.
Further, the capacitance sensing module and the photoelectric transmitting and receiving module are combined and are arranged in the liquid storage bin to detect oily liquid medicine and aqueous liquid medicine respectively, so that the volume of the detection device is effectively reduced, and the detection device is convenient to install in small-sized equipment such as needleless injection equipment. And can realize the contactless detection to the liquid medicine through electric capacity detection mode and photoelectric detection mode, for example can set up corresponding detecting element on the liquid medicine pipe to effectively reduced the pollution to the liquid medicine and to the damage of corresponding device, prolonged detection device's life.
Drawings
The above, as well as additional purposes, features, and advantages of exemplary embodiments of the present invention will become readily apparent from the following detailed description when read in conjunction with the accompanying drawings. In the drawings, embodiments of the invention are illustrated by way of example and not by way of limitation, and like reference numerals refer to similar or corresponding parts and in which:
Fig. 1 is a schematic diagram schematically showing an exemplary scenario in which a drug solution detection scheme for a needleless injection device of the present invention is applied;
fig. 2 is a schematic view schematically showing a medical fluid detection apparatus for a needleless injection device according to an embodiment of the present invention;
fig. 3 is a schematic view schematically showing an aqueous medical fluid detection unit according to an embodiment of the present invention;
Fig. 4 is a schematic view schematically showing the constituent forms of a transmitting module and a receiving module according to an embodiment of the present invention;
Fig. 5 is a schematic view schematically showing an oily liquid detection unit according to an embodiment of the present invention;
Fig. 6 is a schematic diagram schematically showing a signal processing unit according to an embodiment of the present invention;
fig. 7 is a schematic view schematically showing a housing of the medical fluid detecting apparatus according to the embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
At present, a capacitive detection mode and a photoelectric detection mode mainly aiming at the existence of liquid medicine exist in the market, but the two modes are all aimed at the detection of single liquid medicine, and in practice, vaccine liquid medicine has aqueous transparent vaccine and oily emulsion vaccine (hereinafter referred to as aqueous liquid medicine and oily liquid medicine), and the detection of two different types of vaccines cannot be realized by utilizing the current detection mode. In view of this, it is necessary to design a detection method capable of distinguishing whether two types of liquid medicines exist in the liquid storage bin, so as to monitor the liquid medicine state in the liquid storage bin of the needleless injection device in time, so as to avoid the occurrence of ineffective injection of vaccine during injection.
Specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Fig. 1 is a schematic diagram schematically illustrating an exemplary scenario 10 in which the medical fluid detection scheme for a needleless injection device of the present invention is applied. In the context of the present invention, the aforementioned scenario may include various types of needleless injection devices in the liquid storage chamber 100 (liquid medicine chamber), for example, the liquid medicine tube connecting the liquid storage chamber and the nozzle in the liquid storage chamber 100 of the aforementioned needleless injection device may also be used in a murphy infusion dropper for intravenous injection. Based on this, it is understood that fig. 1 shows the scenario as a needle-free injection device for exemplary purposes only, and thus the detection process of the remaining medical fluid from the reservoir in the needle-free injection device will mainly be described in detail in the scheme of the present invention.
As shown in fig. 1, the working principle of the needleless injection device in this solution is that the pressure is generated by the pressure device inside the needleless injection device, so that the liquid medicine in the liquid storage bin 100 inside the needleless injection device is pushed by the pressure to pass through the micro hole of the head, thereby forming a very fine liquid medicine column. By utilizing the pressure jet flow principle, the liquid medicine is instantaneously injected into the subcutaneous part, thereby completing the non-contact injection process of the liquid medicine. In one application scenario, the aforementioned needleless injection device may use a hanging bottle type drug sucking manner, and the drug solution in the external vaccine bottle 300 is introduced into the reservoir 100 of the aforementioned needleless injection device through the infusion tube 400. When the needleless injection device is used for injecting vaccine to pigs, workers can continuously inject by pressing the injection button, so that livestock in a large-scale farm can be injected. For example, the aforementioned needleless injection device may achieve a 1ml or 2ml two-stage needleless injection.
In view of the fact that the staff is not concerned with the residual quantity of the liquid medicine in the liquid storage bin in the needleless injection equipment in real time when injecting, some liquid storage bins are not transparent structures, and the residual quantity of the liquid medicine cannot be observed from the outside. If the liquid medicine is not supplemented in time after multiple injections, a "needle-empty" situation may occur, i.e. some livestock in the colony house have not completed the injection of the liquid medicine, but are considered to have been vaccinated. Therefore, the liquid medicine in the liquid storage bin is detected, the residual quantity of the liquid medicine can be effectively monitored, and accordingly staff can be timely reminded of supplementing the liquid medicine, and for example, an external vaccine bottle can be replaced.
In order to accurately detect the liquid level in the infusion tube, in the scheme, the liquid medicine detection device 200 is arranged in the liquid storage bin 100 of the needleless injection device, so that the oily liquid medicine and the aqueous liquid medicine can be accurately identified, and a worker can be timely reminded of supplementing the liquid medicine. The presence or absence of an oily chemical can be detected by the oily chemical detection means provided in the chemical detection device 200, and the presence or absence of an aqueous chemical can be detected by the aqueous chemical detection means. Through the processing of the two detection results, whether the liquid medicine exists in the liquid storage bin can be comprehensively obtained, so that the liquid medicine state in the liquid storage bin is accurately monitored. In one implementation scenario, the above-mentioned liquid medicine detection device 200 may be disposed on a pipeline connecting the nozzle of the needleless injection apparatus and the liquid storage bin, or may be disposed at another position in the liquid storage bin, and may be adaptively disposed according to requirements by those skilled in the art.
While the present solution has been described briefly above in conjunction with FIG. 1, it is to be understood that the above description is merely illustrative and not limiting, and that variations may be made to the scenario of FIG. 1 by those skilled in the art in light of the teachings of the present invention without departing from the spirit and scope of the invention. For example, the above-described drug solution detection device 200 may be applied to monitor the remaining amount of drug solution during intravenous injection. It will be appreciated that the aforementioned needleless injection device is particularly suitable for vaccine injection of piglets, cattle, sheep and the like before the split, and is also suitable for animals of various sizes, such as dogs, cats, rabbits and the like, and the injection can be completed by only grabbing the animals, aligning the injection part with the protruding needleless injection head and lightly pressing the injection button by a worker.
Fig. 2 is a schematic view schematically showing a medical fluid detection apparatus for a needleless injection device according to an embodiment of the present invention. It will be appreciated that the apparatus shown in fig. 2 may be implemented in the exemplary scenario shown in fig. 1, and thus the description with respect to fig. 1 applies equally to fig. 2.
As shown in fig. 2, the oily liquid medicine detecting unit in the liquid medicine detecting device 200 may be disposed in the liquid storage bin so as to detect whether the oily liquid medicine exists in the liquid storage bin. In one implementation scenario, the above-mentioned oily liquid medicine is mainly an oily emulsion liquid, and can be identified in various ways, for example, by utilizing the conductive property of the liquid, by utilizing the corresponding probe to directly contact with the liquid medicine, or by adopting weighing type, and the residual condition of the liquid medicine can be judged according to the weight of the liquid medicine in the liquid storage bin. The capacitive detection mode can be adopted, and the oily liquid medicine on the corresponding pipeline in the liquid storage bin is detected by utilizing the induction capacitor.
The aqueous chemical detection unit of the chemical detection device 200 is disposed in the liquid storage bin, so as to detect whether the aqueous chemical exists in the liquid storage bin. The aqueous chemical solution detection means may detect the remaining chemical solution by a capacitive detection method, for example.
The liquid medicine detection device 200 is further provided with a signal processing unit, and the signal processing unit may be connected with the output end of the oily liquid medicine detection unit and the output end of the aqueous liquid medicine detection unit, so as to identify the oily liquid medicine and the aqueous liquid medicine, so as to detect the residual state of the liquid medicine in the liquid storage bin. In one application scenario, the aforementioned signal processing unit may be implemented by a control circuit, and the control circuit is disposed on the circuit board 203, thereby implementing connection with the aforementioned oily liquid medicine detection unit and aqueous liquid medicine detection unit. Further, in order to realize power supply to the signal processing unit and the like on the circuit board, a power supply cable 205 is also provided.
Furthermore, in order to prompt the staff to remind the state of the liquid medicine in the liquid storage bin in time, an alarm unit can be further arranged, and an alarm is carried out when no liquid medicine is detected. For example, the alarm unit may be an indicator lamp or a buzzer, so that the alarm unit can remind through light or sound.
The constitution of the liquid level detecting device of the present invention is briefly described above with reference to fig. 2, and the constitution of each part will be explained in detail.
Fig. 3 is a schematic view schematically showing an aqueous medical fluid detection unit according to an embodiment of the present invention. It will be appreciated that the circuit shown in fig. 3 may be implemented in the exemplary scenario shown in fig. 1, and thus the description with respect to fig. 1 applies equally to fig. 3.
In an application scenario, the above-mentioned aqueous medicine liquid detection device may include a capacitance detection circuit 202, where the capacitance detection circuit 202 includes at least one capacitance sensing module, and the capacitance sensing module is attached to the pipeline 201 connecting the nozzle of the needleless injection device and the liquid storage bin, so as to determine whether the aqueous medicine liquid exists in the infusion tube according to the capacitance variation sensed by the capacitance sensing module. For example, the capacitance sensing module can adopt a sensing plate, and the sensing plate and the pipeline are tightly attached to form a capacitance, and when liquid flows through the infusion tube, the capacitance value can be changed, so that the monitoring of the liquid level in the infusion tube is realized.
The capacitance detection circuit 202 may include a capacitance detection chip and at least one capacitance sensing module. The input end of the capacitance detection chip is connected with the capacitance sensing module, and the output end of the capacitance detection chip can be used as the output end of the water-based liquid medicine detection unit, so that whether water-based liquid medicine exists in the liquid storage bin can be judged according to the sensing capacitance value sensed by the capacitance sensing module. In an application scenario, as shown in fig. 3, a pin 3 of the capacitance detection chip U1 is a capacitance input pin, where a capacitance C4 is a capacitance sensitivity adjustment device, and when the capacitance C4 increases, the capacitance detection sensitivity decreases, and a pin 1 on the capacitance detection chip U1 is a state output pin. In the default state, the pin output level is low, and when the capacitance on the input pin 1 is large enough, the output level jumps to high. Further, the capacitive sensing module includes conductive materials such as a metal sheet or a metal coil. For example, the capacitive sensing module in this embodiment may be a copper sheet or a combination of multiple copper sheets.
Fig. 4 is a schematic view schematically showing the constituent forms of a transmitting module and a receiving module according to an embodiment of the present invention, and fig. 5 is a schematic view schematically showing an oily liquid medicine detecting unit according to an embodiment of the present invention. It will be appreciated that the circuits shown in fig. 4 and 5 may be implemented in the exemplary scenario shown in fig. 1, and thus the description with respect to fig. 1 applies equally to fig. 4 and 5.
In an application scenario, the oily liquid medicine detection unit may include a photoelectric detection circuit 204, where the photoelectric detection circuit 204 may include a transmitting module and a receiving module, the transmitting module may be a light source, and the receiving module may be a photosensitive device, so as to sense an optical signal sent by the transmitting module. The transmitting module and the receiving module are arranged on two sides of the pipeline in the liquid storage bin, and whether oily liquid medicine exists in the pipeline or not can be detected according to the optical signals received by the receiving module, so that whether liquid medicine exists in the liquid storage bin or not is judged. In an application scenario, when the liquid medicine flows through a pipeline connecting the spray head and the liquid storage bin and does not flow through the pipeline, the light intensity received by the receiving module is different, and then the liquid medicine in the liquid storage bin can be detected according to the light intensity received by the receiving module.
The photoelectric detection circuit comprises a transmitting module, a receiving module and a photoelectric detection module. The input end of the photoelectric detection module is connected with the receiving module, and the output end of the photoelectric detection module is used as the output end of the oily liquid medicine detection unit so as to judge whether the oily liquid medicine exists in the liquid storage bin according to the signal received by the receiving module. In one application scenario, as shown in fig. 4, the emission module includes a light emitting diode for providing a light source on one side of the pipeline. The receiving module comprises a photosensitive receiving tube so as to receive the optical signal at the other side of the pipeline and convert the optical signal into an electric signal.
Further, the foregoing transmitting module and the receiving module may employ infrared pair tubes, that is, the transmitting module may employ infrared transmitting tubes, and the receiving module may employ phototriodes. In an application scenario, as shown in fig. 4, a light emitting diode is used as a transmitting module in the infrared pair tube G1, and a phototransistor is used as a receiving module. The resistor R2 is a current limiting resistor of the light emitting diode, the C3 is a filter capacitor of the power input end of the infrared pair tube G1, and the R3 is an output end pull-down resistor. The output end of the device G1, namely the photocurrent of the triode end and the current of the input end are in linear relation, and when the current of the input end is fixed, the transparency of the infusion tube influences the current of the output end and is converted into voltage change through a resistor R3.
As shown in fig. 5, the aforementioned photoelectric detection module may employ a comparator, one input end of the comparator is connected to the aforementioned receiving module, the other input end of the comparator may be used for inputting a reference value, and the output end of the comparator is used as the output end of the oily liquid detection unit, so as to determine whether the oily liquid exists in the liquid storage bin according to the detected electrical signal, and send the detection result to the signal processing unit. In one application scenario, the output terminal OUT of the infrared pair tube G1 is connected to the reverse input terminal of the voltage comparator, and the forward input terminal of the voltage comparator is connected to a voltage dividing circuit, so as to provide a reference voltage, i.e. a reference value. The capacitor C5 is a filter capacitor at the power input end of the voltage comparator U3, the inverting input end pin 3 of the voltage comparator U3 is connected with the output pin 5 of the infrared pair tube G1, the resistor R5 and the resistor R6 are voltage dividing resistors, and the connecting ends of the resistor R5 and the resistor R6 are connected with the non-inverting input end of the voltage comparator U3. Resistor R4 may be used as a pull-up resistor at the output of the aforementioned comparator. When the input voltage of pin 3 of the inverting input terminal of the comparator U3 is higher than the voltage on pin 1 of the non-inverting input terminal, pin 4 outputs a high level, and conversely, outputs a low level.
Fig. 6 is a schematic diagram schematically showing a signal processing unit according to an embodiment of the present invention. It will be appreciated that the circuit shown in fig. 6 may be implemented in the exemplary scenario shown in fig. 1, and thus the description with respect to fig. 1 applies equally to fig. 6.
In one application scenario, the signal processing unit may include a logic or gate circuit, where a first input end of the logic or gate circuit may be connected to an output end of the capacitance detection circuit, and a second input end of the logic or gate circuit may be connected to an output end of the photoelectric detection circuit, and configured to perform a logical or operation on a level signal output by the capacitance detection circuit and a level signal output by the photoelectric detection circuit, so as to output a level signal representing a state of the liquid medicine. As shown in fig. 6, the pin 1 and the pin 2 of the logic or gate device U2 are level input pins of the logic or gate device U2, and the pin 4 is a level selection output pin. When at least one of the input pins 1 and 2 is high, the output pin 4 is high, and vice versa.
The signal processing unit can be used for accurately detecting whether the liquid in the liquid storage bin exists or not by receiving the level signals output by the capacitance detection circuit and the photoelectric detection circuit. In one implementation scenario, a high state is defined as 1 and a low state is defined as 0. When the capacitance detection circuit is used for detecting the liquid storage bin, the relative dielectric constant of the oily liquid medicine is low, the relative dielectric constant of the aqueous liquid medicine is high, and when the oily liquid medicine is tested, the output state of the capacitance detection circuit is 0. Wherein the relative permittivity is a physical parameter characterizing the dielectric or polarization properties of the dielectric material. The value of the capacitor is equal to the ratio of the capacitance of the capacitor with the predicted material as the medium and the capacitance of the capacitor with the vacuum as the medium, and the capacitor is also indicative of the storage capacity of the material. When the photoelectric detection circuit is used for detecting the aqueous liquid medicine in the liquid storage bin, the output states of the photoelectric detection circuit are 0 at the moment because the aqueous liquid medicine is transparent when liquid exists or is not. In view of this, by the above-described arrangement and the output of the corresponding signal processing unit, a level state table of the output of the above-described liquid level detection device in different liquid medicine states, that is, table 1, can be generated:
TABLE 1
Further, in order to supply power to each module in the above-mentioned oily liquid medicine detection unit, aqueous liquid medicine detection unit and signal processing unit, still be provided with the power supply unit in the liquid medicine detection device in this scheme, the power supply unit is connected with the aforesaid to above-mentioned oily liquid medicine detection unit, aqueous liquid medicine detection unit and signal processing unit to provide power supply. In one application scenario, the power supply unit may include a power module corresponding to the oily liquid medicine detection unit, the aqueous liquid medicine detection unit, and the signal processing unit. Each corresponding power module comprises at least one filter capacitor, one end of the filter capacitor is connected with the power input end of the liquid medicine detection device, and the other end of the filter capacitor is grounded so as to facilitate interference filtering. For example, a capacitor C1 and a capacitor C2 connected in parallel may be provided in the power module in the aqueous liquid medicine detection unit, thereby achieving a filtering effect. A capacitor C3 may be provided in the power module in the oily liquid medicine detection unit to filter the input power.
Fig. 7 is a schematic view schematically showing a housing of the medical fluid detecting apparatus according to the embodiment of the present invention. It will be appreciated that the structure shown in fig. 7 may be implemented in the exemplary scenario shown in fig. 1, and thus the description with respect to fig. 1 applies equally to fig. 7.
As shown in fig. 7, the liquid level detecting device may perform the sealing process by a structure having a certain shape. For example, a rectangular box 207 is used, and an infusion tube hole 206 is provided in the middle of the box 207 to pass through the aforementioned tube 203. A circuit board is arranged as a carrier for each detection unit and each signal processing unit. For example, the capacitance sensing module in the capacitance detection circuit can be arranged on the circuit board, and the pipeline is closely attached to the capacitance sensing module. The box seals the circuit board, thereby inhibiting the interference of the external environment and devices on the internal detection circuit. It will be appreciated that the sealing process configuration set forth in this scenario is merely exemplary and not limiting, and that one skilled in the art may select appropriate configuration settings as desired.
In the scheme of the invention, the residual liquid medicine in the liquid storage bin is detected by combining the capacitive detection mode and the photoelectric detection mode, and the combination mode has the characteristics of small volume and convenient installation, so that the device can be flexibly installed in various small-sized equipment, such as the needleless injection equipment. When the detection is carried out by using the two modes, the direct contact between the device and the liquid medicine during the detection can be avoided by using the capacitance induction principle and the photoelectric sensor principle, so that the risk of pollution to the liquid medicine is reduced, and the corrosion of the liquid medicine to the device is avoided. Further, through setting up the casing that is used for sealed and installing aforementioned each component, can effectively reduce the interference of external environment etc. to detection device to promote the accuracy of testing result.
In another aspect of the present invention, there is provided a needleless injection apparatus, including a reservoir in which a drug solution detection device may be provided, the drug solution detection device may be the drug solution detection device described in the above embodiment. Further, the liquid medicine detection device may further include a processor and an executing mechanism, where the executing mechanism responds to an instruction of the processor and executes a corresponding action according to whether the liquid medicine exists or not; for example, the actuator may be a microswitch, an alarm device, or the like.
In the foregoing description of the present specification, the terms "fixed," "mounted," "connected," or "connected" are to be construed broadly, unless explicitly stated or limited otherwise. For example, in terms of the term "coupled," it may be fixedly coupled, detachably coupled, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other. Therefore, unless otherwise specifically defined in the specification, a person skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.
It will be further understood by those skilled in the art from the foregoing description of the present specification that terms such as "upper," "inner," "outer," and the like, which indicate an orientation or a positional relationship, are based on the orientation or positional relationship shown in the drawings of the present specification, are for convenience only in describing aspects of the present invention and simplifying the description, and do not explicitly or implicitly refer to devices or elements having to have, construct and operate with, the particular orientation, and therefore the above orientation or positional relationship terms should not be construed or interpreted as limiting aspects of the present invention.
In addition, the terms "first" or "second" and the like used in the present specification to refer to the numbers or ordinal numbers 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 at least one such feature. In the description of the present specification, the meaning of "plurality" means at least two, for example, two, three or more, etc., unless explicitly defined otherwise.
While various embodiments of the present invention have been shown and described herein, it will be obvious to those skilled in the art that such embodiments are provided by way of example only. Many modifications, changes, and substitutions will now occur to those skilled in the art without departing from the spirit and scope of the invention. It should be understood that various alternatives to the embodiments of the invention described herein may be employed in practicing the invention. The appended claims are intended to define the scope of the invention and to cover such modular compositions, equivalents, or alternatives falling within the scope of the claims.
Claims (10)
1. A medical fluid detection apparatus for a needleless injection device, the needleless injection device comprising a reservoir, comprising:
The oily liquid medicine detection unit is arranged in the liquid storage bin and is used for detecting whether oily liquid medicine exists in the liquid storage bin or not, comprises a photoelectric detection circuit and adopts weighing type to judge the residual condition of the liquid medicine according to the weight of the liquid medicine in the liquid storage bin;
the water-based liquid medicine detection unit is arranged in the liquid storage bin and is used for detecting whether water-based liquid medicine exists in the liquid storage bin or not, and the water-based liquid medicine detection unit comprises a capacitance detection circuit;
a signal processing unit connected to the output end of the oily liquid medicine detection unit and the output end of the aqueous liquid medicine detection unit, and used for identifying the oily liquid medicine or the aqueous liquid medicine, and identifying the oily liquid medicine or the aqueous liquid medicine as the liquid medicine when the aqueous liquid medicine or the oily liquid medicine exists;
the liquid medicine detection device is arranged on a pipeline connecting the nozzle of the needleless injection device and the liquid storage bin;
The liquid medicine detection device further comprises a shell structure, wherein the shell structure is used for installing the oily liquid medicine detection unit, the aqueous liquid medicine detection unit and the signal processing unit, and the liquid medicine detection device performs sealing treatment through the shell structure.
2. The medical fluid detection device of claim 1, wherein the capacitance detection circuit comprises at least one capacitance sensing module for determining whether an aqueous medical fluid is present in the reservoir according to a sensed capacitance value sensed by the capacitance sensing module.
3. The medical fluid detection device of claim 2, wherein the capacitive sensing module comprises a metal sheet or a metal coil.
4. The liquid medicine detection device according to claim 1 or 2, wherein the photoelectric detection circuit comprises a transmitting module, a receiving module and a photoelectric detection module, an input end of the photoelectric detection module is connected with an output end of the receiving module, and an output end of the photoelectric detection module is an output end of the oily liquid medicine detection unit and is used for judging whether the oily liquid medicine exists in the liquid storage bin according to a signal received by the receiving module.
5. The medical fluid detecting apparatus according to claim 4, wherein the photoelectric detection module comprises a comparator, one input end of the comparator is connected with the receiving module, and the other input end of the comparator is used for inputting a reference value so as to judge whether the oily medical fluid exists in the fluid storage bin according to the magnitude relation between the signal received by the receiving module and the reference value.
6. The medical fluid detection device of claim 4, wherein the emission module comprises a light emitting diode for providing a light source for luminescence; the receiving module comprises a photosensitive receiving tube which is used for receiving the optical signal emitted by the luminous light source and converting the optical signal into an electric signal.
7. The medical fluid detection device of claim 6, wherein the transmitting module and the receiving module are infrared geminate transistors, the transmitting module is an infrared transmitting tube, and the receiving module is a phototransistor.
8. The medical fluid detection apparatus according to claim 4, wherein the signal processing unit comprises a logic or gate circuit, a first input terminal of the logic or gate circuit is connected to an output terminal of the capacitance detection circuit, and a second input terminal of the logic or gate circuit is connected to an output terminal of the photoelectric detection circuit, and is configured to perform a logical or operation on a level signal output by the capacitance detection circuit and a level signal output by the photoelectric detection circuit, so as to output a level signal indicating a medical fluid state.
9. The medical fluid detection apparatus according to claim 1, further comprising a power supply unit connected to the oily medical fluid detection unit, the aqueous medical fluid detection unit, and the signal processing unit for supplying power.
10. A needleless injection apparatus comprising a reservoir having disposed therein a medical fluid detection device as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111063976.XA CN113893059B (en) | 2021-09-10 | 2021-09-10 | Needleless injection equipment and liquid medicine detection device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111063976.XA CN113893059B (en) | 2021-09-10 | 2021-09-10 | Needleless injection equipment and liquid medicine detection device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113893059A CN113893059A (en) | 2022-01-07 |
| CN113893059B true CN113893059B (en) | 2024-05-07 |
Family
ID=79027669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111063976.XA Active CN113893059B (en) | 2021-09-10 | 2021-09-10 | Needleless injection equipment and liquid medicine detection device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113893059B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202654482U (en) * | 2012-06-29 | 2013-01-09 | 上海海事大学 | Capacitive infusion alarm device |
| CN105233372A (en) * | 2015-11-06 | 2016-01-13 | 南昌德漫多科技有限公司 | Needle-free injection system |
| CN108134907A (en) * | 2017-11-29 | 2018-06-08 | 苏州诺纳可电子科技有限公司 | A kind of novel photoelectric sensor |
| CN110711294A (en) * | 2019-09-11 | 2020-01-21 | 杭州瀚科医疗科技有限公司 | Novel electronic pen type injector |
| CN210494793U (en) * | 2019-02-15 | 2020-05-12 | 张一定 | Disposable self-service drug administration injection pen with simple structure |
| CN210873463U (en) * | 2019-06-27 | 2020-06-30 | 常州市第一人民医院 | Multifunctional insulin injection pen |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BRMU8502383U (en) * | 2005-10-25 | 2007-07-24 | David Fredrick Smith | constructive arrangement introduced in automatic poultry vaccinator |
| US20190046727A1 (en) * | 2017-08-10 | 2019-02-14 | Biocorp Production | Method for improving the accuracy of the quantity of medication injected using an injector pen and injector pen |
-
2021
- 2021-09-10 CN CN202111063976.XA patent/CN113893059B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202654482U (en) * | 2012-06-29 | 2013-01-09 | 上海海事大学 | Capacitive infusion alarm device |
| CN105233372A (en) * | 2015-11-06 | 2016-01-13 | 南昌德漫多科技有限公司 | Needle-free injection system |
| CN108134907A (en) * | 2017-11-29 | 2018-06-08 | 苏州诺纳可电子科技有限公司 | A kind of novel photoelectric sensor |
| CN210494793U (en) * | 2019-02-15 | 2020-05-12 | 张一定 | Disposable self-service drug administration injection pen with simple structure |
| CN210873463U (en) * | 2019-06-27 | 2020-06-30 | 常州市第一人民医院 | Multifunctional insulin injection pen |
| CN110711294A (en) * | 2019-09-11 | 2020-01-21 | 杭州瀚科医疗科技有限公司 | Novel electronic pen type injector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113893059A (en) | 2022-01-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20180326164A1 (en) | Medicament Delivery Device | |
| CN101785887B (en) | Automatic infusion pump | |
| CN101727540A (en) | Method for monitoring the operation of a medication delivery device, an electronic module, and a medication delivery system | |
| CN104066414A (en) | Medical tubing detection and management | |
| CN202289094U (en) | Transfusion alarm | |
| CN104812295B (en) | For detecting the equipment of sleeve pipe displacement | |
| CN108939209A (en) | A kind of intelligent peristaltic pump | |
| CN113893059B (en) | Needleless injection equipment and liquid medicine detection device thereof | |
| CN215839386U (en) | Multi-stage detection gas circuit liquid inlet pollution preventing device for non-contact medical equipment | |
| CN200998469Y (en) | Calling device-accessory for transfusion | |
| CN204840508U (en) | Infrared induction formula infusion alarm device | |
| CN205055053U (en) | Infusion bubble detection circuit | |
| CN102401697B (en) | Infrared wireless data button | |
| CN204951825U (en) | Automatic alarm for infusion | |
| CN205460204U (en) | Transfusion automatic alarm device | |
| CN213131272U (en) | Portable transfusion nursing device | |
| CN212364288U (en) | Soil five-needle detector | |
| CN211116546U (en) | Medical transfer pump detection device | |
| CN206630620U (en) | CT radiography safety controls | |
| Kunthi et al. | Making Monitoring Device of Infusion Liquid Using Proximity Photodiode as a Sensor Based on Arduino UNO | |
| CN218099657U (en) | Liquid medicine monitored control system | |
| CN201643154U (en) | Infrared synchronous intravenous drip warning device | |
| CN2150881Y (en) | Level alarm for infusion bottle | |
| CN102974003A (en) | Improved transfusion alarm and use method thereof | |
| CN204910290U (en) | Intravenous injection combination external member |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |