CN113663161B - Syringe specification identification and calibration system and method for injection pump - Google Patents
Syringe specification identification and calibration system and method for injection pump Download PDFInfo
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- CN113663161B CN113663161B CN202110920125.6A CN202110920125A CN113663161B CN 113663161 B CN113663161 B CN 113663161B CN 202110920125 A CN202110920125 A CN 202110920125A CN 113663161 B CN113663161 B CN 113663161B
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- 238000002347 injection Methods 0.000 title claims abstract description 44
- 239000007924 injection Substances 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000001514 detection method Methods 0.000 claims abstract description 69
- 238000012544 monitoring process Methods 0.000 claims abstract description 14
- 238000012545 processing Methods 0.000 claims description 20
- 239000003990 capacitor Substances 0.000 claims description 18
- 238000004891 communication Methods 0.000 claims description 9
- 230000003993 interaction Effects 0.000 claims description 6
- 238000005070 sampling Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 238000001802 infusion Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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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
- A61M5/142—Pressure infusion, e.g. using pumps
- A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
-
- 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
- A61M2205/60—General characteristics of the apparatus with identification means
- A61M2205/6063—Optical identification systems
-
- 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
- A61M2205/70—General characteristics of the apparatus with testing or calibration facilities
Abstract
The invention relates to a syringe specification identification and calibration system and method of an injection pump, comprising a driving device, an identification device, a calibration device and a main control device; the driving device outputs a driving signal according to the control signal output by the main control device to drive the syringe to inject and returns a monitoring signal; the identifying device detects the specification of the needle cylinder and outputs a specification detection signal; the calibration device detects the position of the needle cylinder to output a position detection signal when performing the specification calibration of the needle cylinder; when the main control device performs the specification calibration of the needle cylinder, a specification corresponding relation table of the specification of the needle cylinder and the specification detection signal is obtained according to the position detection signal and the identification device; and the main control device also identifies the specification of the needle cylinder according to the specification detection signal and the specification corresponding relation table when identifying the specification of the needle cylinder. The invention can calibrate the needle cylinder before identifying the specification of the needle cylinder, improves the accuracy of identification, adopts a non-optocoupler identification mode, and has higher accuracy and better reliability.
Description
Technical Field
The invention relates to the field of medical equipment, in particular to a syringe specification identification and calibration system and method of a syringe pump.
Background
The injection pump is widely applied to clinical rehabilitation and treatment, belongs to infusion equipment or appliances of operating rooms, emergency rooms, diagnosis and treatment rooms and the like, is an infusion pump with constant volume and quantity, and has higher requirements on injection and infusion precision, flow rate stability, infusion time consumption and the like, so as to ensure that the flow rate and the flow velocity of liquid injected into a patient reach expectations and ensure clinical use safety. The specification and the size of the syringe cylinder are main components affecting the injection speed and the dose of the syringe pump, and when injecting the medical fluid, the specification of the syringe cylinder needs to be identified.
The existing scheme generally adopts an optical coupler combination mode to identify, and adopts a movable light shielding plate to identify the size of the needle cylinder. In addition, the existing scheme does not calibrate the specification and the size of the needle cylinder, so that the accuracy of identification is further reduced.
Disclosure of Invention
The invention aims to solve the technical problem of providing a syringe specification identification and calibration system and method for an injection pump aiming at the defects in the prior art.
The technical scheme adopted for solving the technical problems is as follows: a syringe gauge identification calibration system for constructing a syringe pump, comprising: the device comprises a driving device, an identification device, a calibration device and a main control device which are respectively connected with the driving device, the identification device and the calibration device;
the driving device outputs a driving signal according to the control signal output by the main control device to drive the syringe to inject and returns a monitoring signal to the main control device;
the identifying device is used for detecting the specification of the needle cylinder and outputting a specification detection signal to the main control device;
the calibration device is used for detecting the position of the needle cylinder to output a position detection signal to the main control device when the needle cylinder specification calibration is carried out;
the main control device is used for performing needle cylinder specification calibration according to the position detection signal and the calibration detection signal output by the identification device when performing needle cylinder specification calibration so as to obtain a specification corresponding relation table of the specification of the needle cylinder and the specification detection signal; and the main control device is also used for identifying the specification of the needle cylinder according to the specification detection signal and the specification corresponding relation table when the specification of the needle cylinder is identified.
In the syringe specification identification and calibration system of the syringe pump according to the present invention, the driving means includes: a drive circuit, a motor, and a rotary encoder;
the driving circuit is connected with the main control device and is used for receiving a control signal output by the main control device and outputting the driving signal according to the control signal so as to drive the motor to work;
the rotary encoder is connected with the main control device and is used for detecting the rotating speed of the motor and returning the monitoring signal to the main control device.
In the syringe specification identification and calibration system of the syringe pump according to the present invention, the identification means includes: a specification sensor and a first signal processing circuit;
the specification sensor is used for detecting the specification of the needle cylinder and outputting a specification sensing signal;
the first signal processing circuit is connected with the specification sensor and is used for converting the specification sensing signal to output the specification detection signal to the main control device.
In the syringe specification identification and calibration system of the injection pump, the specification sensor comprises a slide wire potentiometer.
In the syringe specification identification calibration system of the syringe pump of the present invention, the first signal processing circuit includes: the second resistor, the third resistor, the first capacitor, the voltage follower, the fourth resistor and the second capacitor;
the first end of the sliding wire potentiometer is connected with a reference voltage, the second end of the sliding wire potentiometer is grounded through the second resistor, the positive input end of the voltage follower is connected with the third end of the sliding wire potentiometer, the first end of the third resistor is connected with the positive input end of the voltage follower, the second end of the third resistor is grounded, the first capacitor is connected with the third resistor in parallel, the negative input end of the voltage follower is connected with the output end of the voltage follower, the output end of the voltage follower is connected with the first end of the fourth resistor, the second end of the fourth resistor is connected with the specification sampling end of the main control device, and the second end of the fourth resistor is grounded through the second capacitor.
In the syringe specification identification calibration system of the syringe pump according to the present invention, the calibration device includes: calibrating the sensor and the second signal processing circuit;
the calibration sensor is used for detecting the position of the needle cylinder and outputting a calibration sensing signal;
the second signal processing circuit is connected with the calibration sensor and is used for converting the calibration sensing signal and outputting the position detection signal to the main control device.
In the syringe specification identification calibration system of the syringe pump of the present invention, the calibration sensor includes: a first photo-coupler and a second photo-coupler; the second signal processing circuit includes: a first filter circuit and a second filter circuit;
the first end of the transmitting part of the first photoelectric coupler is connected with VCC through a ninth resistor, the second end of the transmitting part of the first photoelectric coupler is grounded, the first end of the receiving part of the first photoelectric coupler is connected with VCC through a tenth resistor, the second end of the receiving part of the first photoelectric coupler is grounded, the first end of the receiving part of the first photoelectric coupler is also connected with the input end of the first filter circuit, and the output end of the first filter circuit is connected with the main control device;
the first end of the transmitting part of the second photoelectric coupler is connected with VCC through a twelfth resistor, the second end of the transmitting part of the first photoelectric coupler is grounded, the first end of the receiving part of the second photoelectric coupler is connected with VCC through a thirteenth resistor, the second end of the receiving part of the second photoelectric coupler is grounded, the first end of the receiving part of the second photoelectric coupler is also connected with the input end of the first filter circuit, and the output end of the first filter circuit is connected with the main control device.
In the syringe specification identification and calibration system of the injection pump of the present invention, the system further comprises: the man-machine interaction module is connected with the main control device;
the man-machine interaction module is used for a user to input control information or operation information and is used for displaying the specification and injection information of the needle cylinder.
In the syringe specification identification and calibration system of the injection pump of the present invention, the system further comprises: a communication module and a storage module;
the communication module is connected with the main control device and is used for enabling the main control device to communicate with a cloud server;
the storage module is connected with the main control device and used for storing the specification corresponding relation table, the injection information and the setting information.
In the syringe specification identification and calibration system of the injection pump of the present invention, the system further comprises: a cloud server;
and the cloud server is communicated with the main control device through the communication module, receives the information uploaded by the main control device and stores the information.
In the syringe specification identification and calibration system of the injection pump of the present invention, the system further comprises: a remote monitoring terminal;
the remote monitoring terminal is connected with the cloud server and is used for reading and displaying information stored by the cloud server and sending a remote control instruction to the main control device through the cloud server.
In the syringe specification identification and calibration system of the injection pump of the present invention, the system further comprises: the device comprises a frame, a clamping head piece, a baffle plate and a connecting rod;
the clamping head piece is arranged on the needle cylinder, one end of the connecting rod is connected with the baffle plate, the other end of the connecting rod is connected with the clamping head piece, the sliding wire potentiometer is arranged on the frame, the baffle plate is fixed on the sliding wire potentiometer in a sliding mode, the first photoelectric coupler is arranged on the frame and is close to the needle cylinder, and the second photoelectric coupler is arranged on the frame and is far away from the needle cylinder.
The invention also provides a syringe specification identification and calibration method of the injection pump, which comprises the following steps:
when the specification calibration of the needle cylinder is carried out, the calibration device detects the position of the needle cylinder and outputs a position detection signal;
the identification device detects the specification of the needle cylinder and outputs a calibration detection signal;
the main control device receives the position detection signal and the calibration detection signal, and obtains a specification corresponding relation table of the specification of the needle cylinder and the specification detection signal according to the position detection signal and the calibration detection signal by adopting a linear interpolation method.
In the syringe specification identification and calibration method of the injection pump, the method further comprises the following steps:
and storing a specification corresponding relation table of the specification of the needle cylinder and the specification detection signal into a storage module.
In the syringe specification identification and calibration method of the injection pump, the method further comprises the following steps:
when injection is carried out, the identification device detects the specification of the needle cylinder and outputs a specification detection signal;
the main control device reads the specification corresponding relation table from the storage module;
and the main control device identifies the specification of the needle cylinder according to the specification detection dependency and the specification corresponding relation table so as to obtain the specification information of the needle cylinder.
In the syringe specification identification and calibration method of the injection pump, the method further comprises the following steps:
after the specification information of the needle cylinder is obtained, the main control device determines the injection rate according to the specification information of the needle cylinder;
the main control device outputs a control signal corresponding to the injection rate to the driving device according to the injection rate so as to control the driving device to drive the syringe to inject.
The syringe specification identification and calibration system and method for the injection pump have the following beneficial effects: comprises a driving device, an identification device, a calibration device and a main control device; the driving device outputs a driving signal according to the control signal output by the main control device to drive the syringe to inject and returns a monitoring signal; the identifying device detects the specification of the needle cylinder and outputs a specification detection signal; the calibration device detects the position of the needle cylinder to output a position detection signal when performing the specification calibration of the needle cylinder; when the main control device performs the specification calibration of the needle cylinder, a specification corresponding relation table of the specification of the needle cylinder and the specification detection signal is obtained according to the position detection signal and the identification device; and the main control device also identifies the specification of the needle cylinder according to the specification detection signal and the specification corresponding relation table when identifying the specification of the needle cylinder. The invention can calibrate the needle cylinder before identifying the specification of the needle cylinder, improves the accuracy of identification, adopts a non-optocoupler identification mode, and has higher accuracy and better reliability.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a functional block diagram of a syringe gauge identification calibration system for a syringe pump provided by an embodiment of the present invention;
fig. 2 is a schematic diagram of the principle of identifying the specification and the size of the syringe according to the embodiment of the invention;
FIG. 3 is a schematic illustration of calibration of the gauge of the syringe provided by an embodiment of the present invention;
FIG. 4 is a circuit diagram of an identification device provided by an embodiment of the present invention;
FIG. 5 is a circuit diagram of a calibration device provided by an embodiment of the present invention;
FIG. 6 is a schematic view of a part of the syringe specification identification calibration system of the injection pump according to the embodiment of the present invention;
fig. 7 is a schematic flow chart of a first embodiment of a method for identifying and calibrating syringe specifications of an injection pump according to the present invention;
fig. 8 is a schematic flow chart of a second embodiment of a syringe specification identification calibration method of the injection pump according to the present invention;
fig. 9 is a schematic flow chart of a third embodiment of a syringe specification identification calibration method of an injection pump according to the present invention.
Detailed Description
For a clearer understanding of technical features, objects and effects of the present invention, a detailed description of embodiments of the present invention will be made with reference to the accompanying drawings.
Referring to fig. 1, a functional block diagram of an alternative embodiment of a syringe gauge identification calibration system for a syringe pump is provided.
Specifically, as shown in fig. 1, the syringe specification identification and calibration system of the syringe pump includes: drive device 110, identification device 120, calibration device 130, and master device 140 connected to drive device 110, identification device 120, and calibration device 130, respectively.
The driving device 110 outputs a driving signal to drive the syringe injection according to the control signal output by the main control device 140, and returns a monitoring signal to the main control device 140.
In some embodiments, as shown in fig. 1, the driving device 110 includes: a drive circuit, a motor 1102, and a rotary encoder 1103.
The driving circuit is connected to the main control device 140, and is configured to receive a control signal output by the main control device 140 and output a driving signal according to the control signal to drive the motor 1102 to operate. The rotary encoder 1103 is connected to the main control device 140, and is used for detecting the rotation speed of the motor 1102 and returning a monitoring signal to the main control device 140.
The identifying device 120 is used for detecting the specification of the syringe and outputting a specification detection signal to the main control device 140.
In some embodiments, the identifying means 120 comprises: a specification sensor 1201 and a first signal processing circuit 1202.
The gauge sensor 1201 is used for detecting the gauge of the syringe and outputting a gauge sensing signal. The first signal processing circuit 1202 is connected to the specification sensor 1201, and is configured to perform conversion processing on the specification sensing signal to output a specification detection signal to the main control device 140.
Optionally, the gauge sensor 1201 includes a slide wire potentiometer 12011. It can be appreciated that by adopting the sliding wire potentiometer 12011 to identify the specification and the size of the syringe, the corresponding voltage value can be converted according to the different resistance values based on the different resistance values corresponding to the sliding wire potentiometer 12011 when the sliding wire potentiometer 12011 is positioned at different positions, so that the specification of the syringe can be identified according to the obtained voltage value.
In some embodiments, as shown in fig. 4, the first signal processing circuit 1202 includes: the second resistor R2, the third resistor R3, the first capacitor C1, the voltage follower U1, the fourth resistor R4 and the second capacitor C2. The slide wire potentiometer 12011 is equivalent to the first resistor R1 in fig. 4.
The first end of the sliding wire potentiometer 12011 is connected with a reference voltage, the second end of the sliding wire potentiometer 12011 is grounded through a second resistor R2, the positive input end of the voltage follower U1 is connected with the third end of the sliding wire potentiometer 12011, the first end of the third resistor R3 is connected with the positive input end of the voltage follower U1, the second end of the third resistor R3 is grounded, the first capacitor C1 is connected with the third resistor R3 in parallel, the negative input end of the voltage follower U1 is connected with the output end of the voltage follower U1, the output end of the voltage follower U1 is connected with the first end of a fourth resistor R4, the second end of the fourth resistor R4 is connected with the specification sampling end of the main control device 140, and the second end of the fourth resistor R4 is grounded through a second capacitor C2.
The calibration device 130 is used for detecting the position of the syringe to output a position detection signal to the main control device 140 when performing the syringe specification calibration.
In some embodiments, as shown in fig. 1, the calibration device 130 includes: calibration sensor 1301 and second signal processing circuit 1302.
Calibration sensor 1301 is used to detect the position of the syringe and output a calibration sensing signal. The second signal processing circuit 1302 is connected to the calibration sensor 1301, and is configured to perform conversion processing on the calibration sensing signal and output a position detection signal to the main control device 140.
In some embodiments, as shown in fig. 5, calibration sensor 1301 includes a first optocoupler 13011 and a second optocoupler 13012 in an embodiment of the invention. The second signal processing circuit 1302 includes: a first filter circuit and a second filter circuit.
The first end of the transmitting portion D1 of the first photo-coupler 13011 is connected to VCC through a ninth resistor R9, the second end of the transmitting portion D1 of the first photo-coupler 13011 is grounded, the first end of the receiving portion Q1 of the first photo-coupler 13011 is connected to VCC through a tenth resistor R10, the second end of the receiving portion Q1 of the first photo-coupler 13011 is grounded, the first end of the receiving portion Q1 of the first photo-coupler 13011 is also connected to the input end of the first filter circuit, and the output end of the first filter circuit is connected to the master control device 140. The first end of the transmitting portion D2 of the second photo-coupler 13012 is connected to VCC through a twelfth resistor R12, the second end of the transmitting portion D1 of the first photo-coupler 13011 is grounded, the first end of the receiving portion Q2 of the second photo-coupler 13012 is connected to VCC through a thirteenth resistor R13, the second end of the receiving portion Q2 of the second photo-coupler 13012 is grounded, the first end of the receiving portion Q2 of the second photo-coupler 13012 is also connected to the input end of the first filter circuit, and the output end of the first filter circuit is connected to the master control device 140.
Specifically, as shown in fig. 5, the first filter circuit includes: an eleventh resistor R11 and a fifth capacitor C5; the second filter circuit includes: a fourteenth resistor R14 and a sixth capacitor C6.
As shown in fig. 5, a first end of the eleventh resistor R11 is connected to a first end of the receiving portion Q1 of the first photo coupler 13011, a second end of the eleventh resistor R11 is connected to a first photo signal receiving end of the master control device 140, a first end of the fifth capacitor C5 is connected to a second end of the eleventh resistor R11, and a second end of the fifth capacitor C5 is grounded; the first end of the fourteenth resistor R14 is connected to the first end of the receiving portion Q2 of the second photo coupler 13012, the second end of the fourteenth resistor R14 is connected to the second photo signal receiving end of the master control device 140, the first end of the sixth capacitor C6 is connected to the second end of the fourteenth resistor R14, and the second end of the sixth capacitor C6 is grounded.
The main control device 140 is configured to perform a syringe specification calibration according to the position detection signal and the calibration detection signal output by the identification device 120, so as to obtain a specification correspondence table of the syringe specification and the specification detection signal; the main control device 140 is further configured to identify the syringe specification according to the specification detection signal and the specification correspondence table when the syringe specification is identified.
As shown in fig. 6, the syringe specification identification and calibration system of the syringe pump includes, in terms of a mechanism structure: frame 10, chuck member 40, stop 20 and connecting rod 30. Wherein the identification device 120, the calibration device 130, and the driving device 110 are all mounted on the frame 10. The syringe is shown at 50 in fig. 6.
Specifically, as shown in fig. 6, the chuck member 40 is mounted on the syringe, one end of the connecting rod 30 is connected to the blocking piece 20, the other end is connected to the chuck member 40, the slide wire potentiometer 12011 is disposed on the frame 10, the blocking piece 20 is slidably fixed on the slide wire potentiometer 12011, the first photo coupler 13011 is disposed on the frame 10 and is disposed close to the syringe, and the second photo coupler 13012 is disposed on the frame 10 and is disposed far from the syringe. In the embodiment of the present invention, the blocking piece 20 has two functions, namely, driving the contact of the sliding wire potentiometer 12011 to move and shielding the first photo coupler 13011 or the second photo coupler 13012. The contact driving the sliding wire potentiometer 12011 can output the change of the resistance value of the sliding wire potentiometer 12011, and the shielding photoelectric coupler can calibrate the maximum sliding wire potentiometer 12011 value and the minimum sliding wire potentiometer 12011 value, so that the accurate value of the needle cylinder is realized.
As shown in fig. 2, for the syringes with different specifications and sizes, the corresponding chuck members 40 move at different positions, so as to drive the resistances of the sliding wire potentiometers 12011 corresponding to the contacts of the sliding wire potentiometers 12011 to be different, and then the different resistances of the sliding wire potentiometers 12011 are correspondingly converted into corresponding voltage signals (specification detection signals), so that the specification and size of the syringe are identified according to the obtained voltage signals.
In the embodiment of the invention, before the specification and the size of the needle cylinder are identified, the specification and the size of the needle cylinder are required to be calibrated so as to ensure the accuracy of identification. As shown in fig. 2 and 3, the sliding wire potentiometer 12011 can effectively test the size of the syringe, the photoelectric coupler can detect the current position of the baffle 20, based on the principle, when the calibration is performed, the maximum value and the minimum value are determined first, and then the middle size is obtained by adopting a linear interpolation method, so that the specification corresponding relation table is obtained. Specifically, as shown in fig. 6 and 3, when the chuck member 40 moves to the maximum position, the first photo coupler 13011 is blocked, the first photo coupler 13011 is triggered, and meanwhile, the resistance value of the slide wire potentiometer 12011 corresponding to the current calibration detection signal of the slide wire potentiometer 12011 can be obtained, and the syringe with the maximum size can be identified based on the trigger signal of the first photo coupler 13011 and the current calibration detection signal of the slide wire potentiometer 12011. When the chuck member 40 moves inward to the extent that the second photo-coupler 13012 is blocked by the blocking piece 20, the second photo-coupler 13012 is triggered, and meanwhile, the resistance value of the sliding wire potentiometer 12011 corresponding to the current calibration detection signal of the sliding wire potentiometer 12011 can be obtained, the syringe with the minimum size can be identified based on the triggering signal of the second photo-coupler 13012 and the current calibration detection signal of the sliding wire potentiometer 12011, and the specification of the syringe between the maximum size and the minimum size can be obtained by adopting a linear interpolation method. By adopting the method for calibrating the specification and the size of the needle cylinder, the identification accuracy can be improved, and the false identification is greatly reduced.
Further, in some embodiments, as shown in fig. 1, the syringe gauge identification calibration system of the syringe pump further comprises: and the man-machine interaction module 150 is connected with the main control device 140.
The man-machine interaction module 150 is used for a user to input control information or operation information, and is used for displaying the specification and injection information of the needle cylinder.
In some embodiments, as shown in fig. 1, the syringe gauge identification calibration system of the syringe pump further comprises: a communication module 160 and a storage module 190.
The communication module 160 is connected to the master control device 140, and is used for the master control device 140 to communicate with the cloud server 170; the storage module 190 is connected to the main control device 140, and is used for storing the specification correspondence table, the injection information and the setting information.
In some embodiments, as shown in fig. 1, the syringe gauge identification calibration system of the syringe pump further comprises: cloud server 170; the cloud server 170 communicates with the master control apparatus 140 through the communication module 160, receives information uploaded by the master control apparatus 140, and stores the information.
In some embodiments, as shown in fig. 1, the syringe gauge identification calibration system of the syringe pump further comprises: a remote monitoring terminal 180; the remote monitoring terminal 180 is connected to the cloud server 170, and is configured to read and display information stored in the cloud server 170, and send a remote control instruction to the master control device 140 through the cloud server 170.
Referring to fig. 7, a flowchart of an alternative embodiment of a syringe specification identification calibration method of an injection pump according to the present invention is shown. The syringe specification identification and calibration method of the syringe pump can be realized through the syringe specification identification and calibration system of the syringe pump.
As shown in fig. 7, the syringe specification identification calibration method of the injection pump includes the following steps:
in step S701, when performing the syringe specification calibration, the calibration device 130 detects the position of the syringe and outputs a position detection signal.
Step S702, the identifying device 120 detects the specification of the syringe and outputs a calibration detection signal.
In step S703, the main control device 140 receives the position detection signal and the calibration detection signal, and obtains a specification correspondence table of the specification of the syringe corresponding to the specification detection signal by using a linear interpolation method according to the position detection signal and the calibration detection signal.
Further, as shown in fig. 8, after step S703, the method further includes:
step S704, a specification correspondence table corresponding to the specification of the syringe and the specification detection signal is stored in the storage module 190.
In some embodiments, as shown in fig. 9, the syringe specification identification calibration method of the syringe pump further comprises:
in step S901, when an injection is performed, the identifying device 120 detects the specification of the syringe and outputs a specification detection signal.
In step S902, master device 140 reads the specification correspondence table from storage module 190.
In step S903, the main control device 140 identifies the specification of the syringe according to the specification detection dependency and the specification correspondence table, so as to obtain the specification information of the syringe.
In step S904, after obtaining the specification information of the syringe, the main control device 140 determines the injection rate according to the specification information of the syringe.
In step S905, the main control device 140 outputs a control signal corresponding to the injection rate to the driving device 110 according to the injection rate, so as to control the driving device 110 to drive the syringe to inject.
The syringe specification identification calibration system and method of the injection pump provided by the embodiment of the invention are characterized in that before syringe identification is carried out, the specification and the size of the syringe are calibrated, and then the specification corresponding relation table is obtained, so that the specification corresponding relation table stored in the memory can be directly called when the specification identification of the syringe is carried out, the specification of the syringe can be rapidly identified, the syringe specification identification accuracy can be improved, and the false identification rate is reduced.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative elements and steps are described above generally in terms of functionality in order to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. The software modules may be disposed in Random Access Memory (RAM), memory, read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same according to the content of the present invention, and not to limit the scope of the present invention. All equivalent changes and modifications made with the scope of the claims should be covered by the claims.
Claims (11)
1. A syringe gauge identification calibration system for a syringe pump, comprising: the device comprises a driving device, an identification device, a calibration device and a main control device which are respectively connected with the driving device, the identification device and the calibration device;
the driving device outputs a driving signal according to the control signal output by the main control device to drive the syringe to inject and returns a monitoring signal to the main control device;
the identifying device is used for detecting the specification of the needle cylinder and outputting a specification detection signal to the main control device; the identification device comprises: a specification sensor and a first signal processing circuit;
the specification sensor is used for detecting the specification of the needle cylinder and outputting a specification sensing signal;
the first signal processing circuit is connected with the specification sensor and is used for converting the specification sensing signal to output the specification detection signal to the main control device;
the calibration device is used for detecting the position of the needle cylinder to output a position detection signal to the main control device when the needle cylinder specification calibration is carried out;
the main control device is used for performing needle cylinder specification calibration according to the position detection signal and the calibration detection signal output by the identification device when performing needle cylinder specification calibration so as to obtain a specification corresponding relation table of the specification of the needle cylinder and the specification detection signal; the main control device is also used for identifying the specification of the needle cylinder according to the specification detection signal and the specification corresponding relation table when the specification of the needle cylinder is identified;
the specification sensor comprises a slide wire potentiometer;
the first signal processing circuit includes: the second resistor, the third resistor, the first capacitor, the voltage follower, the fourth resistor and the second capacitor;
the first end of the sliding wire potentiometer is connected with a reference voltage, the second end of the sliding wire potentiometer is grounded through the second resistor, the positive input end of the voltage follower is connected with the third end of the sliding wire potentiometer, the first end of the third resistor is connected with the positive input end of the voltage follower, the second end of the third resistor is grounded, the first capacitor is connected with the third resistor in parallel, the negative input end of the voltage follower is connected with the output end of the voltage follower, the output end of the voltage follower is connected with the first end of the fourth resistor, the second end of the fourth resistor is connected with the specification sampling end of the main control device, and the second end of the fourth resistor is grounded through the second capacitor;
the calibration device comprises: calibrating the sensor and the second signal processing circuit;
the calibration sensor is used for detecting the position of the needle cylinder and outputting a calibration sensing signal;
the second signal processing circuit is connected with the calibration sensor and is used for converting the calibration sensing signal and outputting the position detection signal to the main control device;
the calibration sensor includes: a first photo-coupler and a second photo-coupler; the second signal processing circuit includes: a first filter circuit and a second filter circuit;
the first end of the transmitting part of the first photoelectric coupler is connected with VCC through a ninth resistor, the second end of the transmitting part of the first photoelectric coupler is grounded, the first end of the receiving part of the first photoelectric coupler is connected with VCC through a tenth resistor, the second end of the receiving part of the first photoelectric coupler is grounded, the first end of the receiving part of the first photoelectric coupler is also connected with the input end of the first filter circuit, and the output end of the first filter circuit is connected with the main control device;
the first end of the transmitting part of the second photoelectric coupler is connected with VCC through a twelfth resistor, the second end of the transmitting part of the first photoelectric coupler is grounded, the first end of the receiving part of the second photoelectric coupler is connected with VCC through a thirteenth resistor, the second end of the receiving part of the second photoelectric coupler is grounded, the first end of the receiving part of the second photoelectric coupler is also connected with the input end of the first filter circuit, and the output end of the first filter circuit is connected with the main control device.
2. The syringe gauge identification calibration system of a syringe pump of claim 1, wherein the drive means comprises: a drive circuit, a motor, and a rotary encoder;
the driving circuit is connected with the main control device and is used for receiving a control signal output by the main control device and outputting the driving signal according to the control signal so as to drive the motor to work;
the rotary encoder is connected with the main control device and is used for detecting the rotating speed of the motor and returning the monitoring signal to the main control device.
3. The syringe gauge identification calibration system of any one of claims 1-2, further comprising: the man-machine interaction module is connected with the main control device;
the man-machine interaction module is used for a user to input control information or operation information and is used for displaying the specification and injection information of the needle cylinder.
4. The syringe gauge identification calibration system of any one of claims 1-2, further comprising: a communication module and a storage module;
the communication module is connected with the main control device and is used for enabling the main control device to communicate with a cloud server;
the storage module is connected with the main control device and used for storing the specification corresponding relation table, the injection information and the setting information.
5. The syringe gauge identification calibration system of the syringe pump of claim 4, further comprising: a cloud server;
and the cloud server is communicated with the main control device through the communication module, receives the information uploaded by the main control device and stores the information.
6. The syringe gauge identification calibration system of the syringe pump of claim 5, further comprising: a remote monitoring terminal;
the remote monitoring terminal is connected with the cloud server and is used for reading and displaying information stored by the cloud server and sending a remote control instruction to the main control device through the cloud server.
7. The syringe gauge identification calibration system of the syringe pump of claim 1, further comprising: the device comprises a frame, a clamping head piece, a baffle plate and a connecting rod;
the clamping head piece is arranged on the needle cylinder, one end of the connecting rod is connected with the baffle plate, the other end of the connecting rod is connected with the clamping head piece, the sliding wire potentiometer is arranged on the frame, the baffle plate is fixed on the sliding wire potentiometer in a sliding mode, the first photoelectric coupler is arranged on the frame and is close to the needle cylinder, and the second photoelectric coupler is arranged on the frame and is far away from the needle cylinder.
8. A syringe specification identification and calibration method of a syringe pump corresponding to a syringe specification identification and calibration system of a syringe pump according to any one of claims 1 to 7, comprising the steps of:
when the specification calibration of the needle cylinder is carried out, the calibration device detects the position of the needle cylinder and outputs a position detection signal;
the identification device detects the specification of the needle cylinder and outputs a calibration detection signal;
the main control device receives the position detection signal and the calibration detection signal, and obtains a specification corresponding relation table of the specification of the needle cylinder and the specification detection signal according to the position detection signal and the calibration detection signal by adopting a linear interpolation method.
9. The syringe gauge identification calibration method of a syringe pump of claim 8, further comprising:
and storing a specification corresponding relation table of the specification of the needle cylinder and the specification detection signal into a storage module.
10. The syringe gauge identification calibration method of a syringe pump of claim 9, further comprising:
before injection, the identification device detects the specification of the needle cylinder and outputs a specification detection signal;
the main control device reads the specification corresponding relation table from the storage module;
and the main control device identifies the specification of the needle cylinder according to the specification detection dependency and the specification corresponding relation table so as to obtain the specification information of the needle cylinder.
11. The syringe gauge identification calibration method of a syringe pump of claim 10, further comprising:
after the specification information of the needle cylinder is obtained, the main control device determines the injection rate according to the specification information of the needle cylinder;
the main control device outputs a control signal corresponding to the injection rate to the driving device according to the injection rate.
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