CN115887830A - Injection pen dosage control method and system - Google Patents
Injection pen dosage control method and system Download PDFInfo
- Publication number
- CN115887830A CN115887830A CN202211596594.8A CN202211596594A CN115887830A CN 115887830 A CN115887830 A CN 115887830A CN 202211596594 A CN202211596594 A CN 202211596594A CN 115887830 A CN115887830 A CN 115887830A
- Authority
- CN
- China
- Prior art keywords
- injection
- processor
- motor
- monitoring device
- speed
- 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.)
- Pending
Links
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention provides a method and a system for controlling the dose of an injection pen, which comprise a motor pushing module, a motor driving device, a first monitoring device, a second monitoring device, a first processor and a second processor, wherein the motor pushing module is connected with the motor driving device; reading the numerical value of the first monitoring device through the first processor, calculating the rotating speed of the motor and the total rotating angle of the motor, and calculating the actual injection speed and the injection liquid medicine amount according to the rotating speed and the rotating angle of the motor; and the signal output to the motor drive is adjusted in real time according to the numerical values in the injection process, so that the injection speed and the injection dosage are ensured to be in the set range. The second processor is added to read the numerical value of the first monitoring device, and the injection speed and the injection precision are confirmed for the second time, so that the situation that the injection is out of control due to the downtime of the first processor is prevented; and reading the value of the second monitoring device, and comparing the value with the data of the first monitoring device to prevent the condition of over-injection caused by failure of the monitoring device.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a method and a system for controlling the dosage of an injection pen.
Background
At present, injection pens are mostly adopted for self-injection of insulin, growth hormone and other medicines, and electronic injection pens push a rubber plug of a cassette bottle through a push rod mechanism, so that a needle head is utilized to inject medicines into subcutaneous muscles of a human body, and the purpose of treating diseases is achieved.
The electronic injection pen usually only needs patient's independent operation can accomplish the flow of injection automatically, and most injection scenes are located patient's family, consequently generally lack professional medical personnel and guardianship and guide at the injection in-process, and this also requires the injection pen dose that can the accurate control injection, and when appearing unusual, can in time terminate the injection and carry out the suggestion to avoid injecting the condition appearance of excess.
In the chinese patent of the invention with the publication number CN 104800932B and the publication date 2017.11.10, a drug information monitoring device and a drug information monitoring injection device are disclosed, which are used for detecting the injection dosage of an injection pen filled with a drug, and one end of the injection pen is provided with an adjusting knob for determining the injection dosage, and the drug information monitoring device is characterized in that the drug information monitoring device comprises a housing, a rotary encoder and a control component, wherein the rotary encoder is used for converting the rotation information of the adjusting knob into the drug injection dosage information, the rotary encoder comprises an encoding body and a rotary block rotatably connected with the encoding body, the encoding body and the control component are electrically connected and fixed to the adjusting knob, the housing covers the encoding body and the control component, one end of the housing is provided with a button, the rotary block is fixedly connected to the button, the encoding body and the control component are fixed in the housing, one end of the housing is fixed to the adjusting knob, and the button is rotatably connected to the other end of the housing. The coding body of the rotary encoder can rotate along with the adjusting knob, the number of rotation turns is recorded and converted into medicine information during injection and stored, the data acquisition error is small, and the precision requirement of use and assembly is low.
Most of the existing injection pens adopt closed-loop control to ensure the injection precision, and once a measuring device is abnormal or a processor is down, the situation that the injection dosage is insufficient or excessive easily occurs, and if the situation is not found in time, the life health of a patient can be harmed.
Disclosure of Invention
In order to overcome the problems in the prior art, the invention provides a double closed-loop control method and a double closed-loop control system for preventing the injection pen from being insufficient in injection dosage or excessive in injection dosage, so that the injection pen is safer and more standard when injecting medicines.
In order to achieve the purpose, the invention provides the following technical scheme: the invention also provides a dosage control method of the injection pen, which comprises the following steps:
s1: acquiring medicine injection parameters, wherein the medicine injection parameters comprise medicine liquid injection dosage and medicine liquid injection speed;
s2: the system synchronously sends the drug injection parameters to the first processor and the second processor;
s3: the first processor and the second processor output signals to the motor driving device to start injection; the second processor outputs an enable signal to the motor driving device, and the first processor outputs a control signal to the motor driving device; the motor driving device controls the motor to rotate and pushes the push rod to start injection;
s4: dose monitoring is carried out; judging whether the device is abnormal or not, comprising the following steps:
s41: the first processor monitors the first monitoring device, continuously adjusts the rotating speed of the motor and keeps the injection speed within a set range;
s42: the second processor monitors the first processor, calculates the actual injection speed and the actual injection liquid medicine amount, and prevents the first processor from causing the injection out of control due to abnormality;
s43: the second processor monitors the second monitoring device and compares the second monitoring device with a set speed value to prevent the first monitoring device from being out of work to cause excessive injection; specifically, the second processor reads the value of the second monitoring device and performs the following calculation:
the actual moving speed of the push rod at the moment t can be obtained; the second processor compares the obtained speed value with a set speed, if the difference value exceeds 40%, the first monitoring device is judged to be abnormal, the output of an enabling signal to the motor driving device is stopped, and an alarm is given; wherein a is Integer i Acceleration of the entire pen, a Rod i Is the acceleration of the push rod, t is the time of measurementIn the meantime, Δ t is a data acquisition time interval of the second monitoring device;
s5: when the injection reaches the injection dosage of the medicine obtained in the S1, the first processor and the second processor stop outputting signals to the motor driving device, and the injection is finished.
It should be noted that the control signal may be any one of a PWM signal, a voltage signal, a current signal, or a protocol communication (USB, UART, SPI, I2C, CAN, etc.).
The invention is further configured to: in step S41, the first processor monitors the first monitoring device, specifically, the first processor reads the value of the first monitoring device, calculates the rotation speed and total rotation angle of the motor, and calculates the actual injection speed and the injection amount according to the rotation speed and the rotation angle of the motor; and the signal output to the motor driving device is adjusted in real time according to the numerical values in the injection process, so that the injection speed and the injection dosage are ensured to be in the set range.
The invention is further configured to: in step S42, the second processor monitors the first processor, specifically, the second processor reads the first monitoring device to calculate the rotation speed of the motor, records the number of rotation turns of the motor, calculates the actual injection speed and the injection amount according to the rotation speed and the number of rotation turns of the motor, determines that the first processor is abnormal if the deviation between the actual injection speed and the set injection speed in the injection process exceeds 10% or the injection amount exceeds 5% of the set value, stops outputting the enable signal to the motor drive, and performs alarm reminding.
A dosage control system of an injection pen relates to a device comprising a motor pushing module, a motor driving device, a first monitoring device, a second monitoring device, a first processor, a second processor and a PCBA;
the motor pushing module comprises a motor main body, a reduction gearbox, a screw rod and a push rod;
the first processor, the second processor and the motor driving device are all arranged on the PCBA;
the first monitoring device is a motor encoder, and the second monitoring device is two acceleration sensors and comprises a first acceleration sensor and a second acceleration sensor.
The invention is further configured to: the reduction box both ends are connected to motor main part and lead screw respectively, and the reduction ratio is Y:1; the screw rod is connected with the inner thread of the push rod through the outer thread, and when the screw rod rotates, the thread drives the push rod to move in parallel; the bottom of the push rod is in contact with the rubber plug of the cassette bottle, and the injection process is completed by pushing the rubber plug.
The motor main body is preferably a dc brush motor or a stepping motor.
The positive and negative rotation of the motor can be controlled by adjusting the polarity of the input voltage through the motor driving device, and the rotation speed of the motor can be controlled by adjusting the duty ratio of the input voltage through the motor driving device. Namely, the main shaft of the motor main body rotates for Y circles, the screw rod rotates for 1 circle, and the control precision and the rotating torque force of the motor are improved through the arrangement of the reduction gearbox.
The invention is further configured to: the motor encoder comprises two Hall sensors and a disc magnet, the Hall sensors are mounted at the tail of the motor main body, and a rotating shaft extending out of the tail of the motor is connected with the disc magnet; the first monitoring device is electrically connected with the first processor and the second processor respectively.
The invention is further configured to: the first acceleration sensor is installed on fuselage PCBA for survey the acceleration of complete machine, and the second acceleration sensor is fixed in on the push rod, is used for surveying the acceleration of push rod.
The collecting directions of the push rod and the push rod are both in the positive direction of the push rod pushed downwards, and the relative moving speed of the push rod relative to the machine body can be calculated by reading binary values.
The invention is further configured to: the acceleration sensor is any one of a single-axis acceleration sensor or a three-axis acceleration sensor.
The invention is further configured to: the first processor and the second processor are connected with the motor driving device, and the motor driving device is electrically connected with the motor main body.
In summary, the technical scheme of the invention has the following beneficial effects:
1. the technical scheme of the invention can realize the closed-loop control of the motor, thereby accurately controlling the injection dosage and the injection speed. The situation that the injection dose is insufficient or excessive can be avoided.
2. This application uses two sets of monitoring devices, when one of them set of monitoring device became invalid or the reading is inaccurate, can in time discover and make a response. The safety of the injection pen is improved.
3. The dual processors are used for controlling, when one core is down, the motor driving device can be timely taken over, the motor is stopped, and the situation that the injection dosage is insufficient or excessive due to the fact that the motor is out of control is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a dosage control system for an injection pen according to an embodiment of the present application;
FIG. 2 is a schematic diagram of signal outputs of a first monitoring device and a second monitoring device in an embodiment of the present application;
FIG. 3 is a flow chart of a method according to an embodiment of the present application;
fig. 4 is a flowchart of a specific method in step S4 of the method according to the embodiment of the present application.
Detailed Description
In order to make the technical solutions of the present invention better understood, the following description of the technical solutions of the present invention with reference to the accompanying drawings of the present invention is made clearly and completely, and other similar embodiments obtained by a person of ordinary skill in the art without any creative effort based on the embodiments in the present application shall fall within the protection scope of the present application. In addition, directional terms such as "upper", "lower", "left", "right", etc. in the following embodiments are directions with reference to the drawings only, and thus, the directional terms used are intended to illustrate rather than limit the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes" or "including," etc., specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof. Also, the terminology used in this specification includes any and all combinations of the associated listed items.
The invention is further described with reference to the drawings and the preferred embodiments.
Example 1:
referring to fig. 1, in a preferred embodiment of the present application, an injection pen dosage control system relates to a device including a motor driving module, a motor driving device, a first monitoring device, a second monitoring device, a first processor, a second processor and a PCBA;
the motor pushing module comprises a motor main body, a reduction gearbox, a screw rod and a push rod;
the first processor, the second processor and the motor driving device are all arranged on the PCBA;
the first monitoring device is a motor encoder, and the second monitoring device is two acceleration sensors and comprises a first acceleration sensor and a second acceleration sensor.
The motor main part has the brush motor for the direct current, the reducing gear box both ends are connected to motor main part and lead screw respectively, and the reduction ratio is Y:1; the screw rod is connected with the inner thread of the push rod through the outer thread, and when the screw rod rotates, the thread drives the push rod to move in parallel; the bottom of the push rod is in contact with the rubber plug of the cassette bottle, and the injection process is completed by pushing the rubber plug.
The positive and negative rotation of the motor can be controlled by adjusting the polarity of the input voltage through the motor driving device, and the rotation speed of the motor can be controlled by adjusting the duty ratio of the input voltage through the motor driving device. Namely, the main shaft of the motor body rotates for Y circles, the screw rod rotates for 1 circle, and the control precision and the rotating torque force of the motor are improved through the arrangement of the reduction gearbox.
The first monitoring device is a motor encoder and comprises two Hall sensors and a disc magnet, the Hall sensors are mounted at the tail of the motor main body, and a rotating shaft extending out of the tail of the motor is connected with the disc magnet; the first monitoring device is electrically connected with the first processor and the second processor respectively.
The second monitoring device is a screw rod encoder and is fixed on the screw rod shell, the axis of the second monitoring device rotates along with the screw rod, and when the axis rotates, the encoder outputs two paths of pulse signals; the second monitoring device is electrically connected with the first processor and the second processor respectively.
The first processor and the second processor are connected with the motor driving device, and the motor driving device is electrically connected with the motor main body.
The control signal of the motor drive is provided by the first processor, the start-stop, the rotation speed and the rotation direction of the motor can be controlled, the enabling signal is provided by the second processor and used for controlling the working state of the motor drive, when the enabling signal is low, the motor drive is powered off, the control signal provided by the first processor is ignored, and the motor stops running at the moment.
The first monitoring device is a motor encoder and comprises two Hall sensors and a disc magnet, the Hall sensors are installed at the tail of the motor main body, a rotating shaft extending out of the tail of the motor is connected with the disc magnet, the disc magnet is synchronously driven to rotate when the motor rotates, the Hall sensors can detect polarity change of the disc magnet, and two paths of high and low levels are output.
The output waveform is shown in fig. 2, 4 states can be listed in the two phases AB of the encoder during the rotation of the motor, and the output is respectively the phase AB according to the high level 1: 10. 11, 01 and 00, when the motor rotates forwards, the coding sequence of the coder is a cycle of 10 → 11 → 01 → 00, and when the motor rotates backwards, the coding sequence of the coder is a cycle of 00 → 01 → 11 → 10, and the processor can judge that the motor rotates forwards or backwards currently according to the output sequence of the coding. When the motor rotates one circle, the encoder outputs Z 1 And (4) encoding.
The second monitoring device is two single-axis acceleration sensors, and the first acceleration sensor is arranged on a PCBA of the machine body and used for measuring the acceleration a of the whole machine Machine for finishing A second acceleration sensor fixed to the push rod for measuring the acceleration a of the push rod Rod And the collecting directions of the push rod and the push rod are both positive directions in the direction that the push rod is pushed out downwards, and the relative moving speed of the push rod relative to the machine body can be calculated by reading binary values.
The first processor is used for reading the value of the first monitoring device, calculating the rotating speed of the motor and the total rotating angle of the motor, and calculating the actual injection speed and the injection liquid according to the rotating speed and the rotating angle of the motor. And the signal output to the motor drive is adjusted in real time according to the numerical values in the injection process, so that the injection speed and the injection dosage are ensured to be in the set range.
The method for calculating the rotating speed of the motor comprises the following steps: the first processor records the number of codes of the encoder according to the period, and according to a formula:
the rotating speed of the motor can be obtained, wherein: n is the current rotation speed of the motor, X 1 For the first monitoring device encoder output of the number of codes, Z, in the recording period 1 The number of the coded outputs of the coder is one cycle of the first monitoring device coder rotation, and T is a sampling period.
The method for calculating the rotation angle of the motor comprises the following steps: the first processor records the total number of coded outputs of the first monitoring device after the injection is started, and according to a formula:
the total angle of the motor can be obtained; wherein: q is the total angle of rotation of the motor, X 1 Total For the total number of outputs, Z, of the first monitoring device encoder 1 The number of the codes output by the encoder when the encoder of the first monitoring device rotates for one circle is determined.
The calculation formula of the actual injection speed is as follows:
wherein W is the injection speed, n is the rotating speed of the motor, M is the tooth pitch of the screw rod, d is the inner diameter of the injection medicine bottle, and Y is the reduction ratio of the motor reduction box.
The calculation formula of the actual injection liquid medicine amount is as follows:
wherein V is the actual volume of the injection liquid medicine, Q is the total angle of rotation of the motor, M is the pitch of the screw rod, d is the inner diameter of the injection medicine bottle, and Y is the reduction ratio of the reduction gearbox of the motor.
The second processor is used for: reading the numerical value of the first monitoring device, and performing secondary confirmation on the injection speed and the injection precision to prevent the situation of out-of-control injection caused by downtime of the first processor; and reading the value of the second monitoring device, and comparing the value with the data of the first monitoring device to prevent the condition of over-injection caused by failure of the monitoring device.
The second processor calculates the rotating speed of the motor by using the first monitoring device, records the number of rotating circles of the motor, calculates the actual injection speed and the injection liquid amount according to the rotating speed and the number of rotating circles of the motor, judges that the first processor is abnormal if the deviation between the actual injection speed and the set injection speed in the injection process exceeds 10% or the injection amount exceeds 5% of a set value, stops outputting an enabling signal to the motor drive, and carries out alarm reminding.
The method for the second processor to confirm whether the monitoring device fails or not comprises the following steps: during the injection, the second processor reads the value of the second monitoring device and calculates as follows:
the actual moving speed of the push rod at the moment t can be obtained. And the second processor compares the obtained speed value with a set speed, if the difference value exceeds 40%, the first monitoring device is judged to be abnormal, the output of an enabling signal to the motor drive is stopped, and an alarm is given.
Example 2:
referring to fig. 3, which is a flowchart of a method according to a preferred embodiment of the present invention, a method for controlling a dosage of an injection pen is provided, and the method is suitable for the above-mentioned system for controlling a dosage of an injection pen, and includes the following steps:
s1: acquiring medicine injection parameters, wherein the medicine injection parameters comprise medicine liquid injection dosage and medicine liquid injection speed;
s2: the system synchronously sends the drug injection parameters to the first processor and the second processor;
s3: the first processor and the second processor output signals to the motor driving device to start injection; the second processor outputs an enable signal to the motor driving device, and the first processor outputs a control signal to the motor driving device; the motor driving device controls the motor to rotate and pushes the push rod to start injection;
s4: dose monitoring is carried out; judging whether the device has abnormity, comprising the following steps:
s41: the first processor monitors the first monitoring device, continuously adjusts the rotating speed of the motor and keeps the injection speed within a set range;
s42: the second processor monitors the first processor, calculates the actual injection speed and the actual injection liquid medicine amount, and prevents the first processor from causing the injection out of control due to abnormality;
s43: the second processor monitors the second monitoring device and compares the second monitoring device with a set speed value to prevent the first monitoring device from being out of work to cause excessive injection; specifically, the second processor reads the value of the second monitoring device and performs the following calculation:
the actual moving speed of the push rod at the moment t can be obtained; the second processor compares the obtained speed value with a set speed, if the difference value exceeds 40%, the first monitoring device is judged to be abnormal, the output of an enabling signal to the motor driving device is stopped, and an alarm is given;
s5: when the injection reaches the preset dosage in the S1, the first processor and the second processor stop outputting signals to the motor driving device, and the injection is finished.
The invention is further configured to: in step S41, the first processor monitors the first monitoring device, specifically, the first processor reads the value of the first monitoring device, calculates the rotation speed and total rotation angle of the motor, and calculates the actual injection speed and the injection amount according to the rotation speed and the rotation angle of the motor; and the signal output to the motor driving device is adjusted in real time according to the numerical values in the injection process, so that the injection speed and the injection dosage are ensured to be in the set range.
The invention is further configured to: in step S42, the second processor monitors the first processor, specifically, the second processor reads the first monitoring device to calculate the rotation speed of the motor, records the number of rotation turns of the motor, calculates the actual injection speed and the injection amount according to the rotation speed and the number of rotation turns of the motor, determines that the first processor is abnormal if the deviation between the actual injection speed and the set injection speed in the injection process exceeds 10% or the injection amount exceeds 5% of the set value, stops outputting the enable signal to the motor drive, and performs alarm reminding.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, and these are all within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A dosage control method for an injection pen is characterized by comprising the following steps:
s1: acquiring medicine injection parameters, wherein the medicine injection parameters comprise medicine liquid injection dosage and medicine liquid injection speed;
s2: the system synchronously sends the drug injection parameters to the first processor and the second processor;
s3: the first processor and the second processor output signals to the motor driving device to start injection; the second processor outputs an enable signal to the motor driving device, and the first processor outputs a control signal to the motor driving device; the motor driving device controls the motor to rotate and pushes the push rod to start injection;
s4: dose monitoring is carried out; judging whether the device has abnormity, comprising the following steps:
s41: the first processor monitors the first monitoring device, continuously adjusts the rotating speed of the motor and keeps the injection speed within a set range;
s42: the second processor monitors the first processor, calculates the actual injection speed and the actual injection liquid medicine amount, and prevents the first processor from causing the injection out of control due to abnormality;
s43: the second processor monitors the second monitoring device and compares the second monitoring device with a set speed value to prevent the first monitoring device from being out of work to cause excessive injection; specifically, the second processor reads the value of the second monitoring device and performs the following calculation:
the actual moving speed of the push rod at the moment t can be obtained; the second processor compares the obtained speed value with a set speed, if the difference value exceeds 40%, the first monitoring device is judged to be abnormal, the output of an enabling signal to the motor driving device is stopped, and an alarm is given; wherein a is Integer i Acceleration of the entire pen, a Rod i The acceleration of the push rod is taken as t, the measurement time is taken as t, and the delta t is the data acquisition time interval of the second monitoring device;
s5: when the injection reaches the injection dosage of the liquid medicine obtained in the step S1, the first processor and the second processor stop outputting signals to the motor driving device, and the injection is finished.
2. The method for controlling the dose of the injection pen according to claim 1, wherein in step S41, the first processor monitors the first monitoring device, specifically, the first processor reads the value of the first monitoring device, calculates the rotation speed and the total rotation angle of the motor, and calculates the actual injection speed and the injection liquid amount according to the rotation speed and the rotation angle of the motor; and the signal output to the motor driving device is adjusted in real time according to the numerical values in the injection process, so that the injection speed and the injection dosage are ensured to be in the set range.
3. The dosage control method of the injection pen according to claim 1, wherein the second processor monitors the first processor in step S42, and the second processor reads the first monitoring device to calculate the rotation speed of the motor, records the number of revolutions of the motor, calculates the actual injection speed and the amount of the injected liquid medicine according to the rotation speed and the number of revolutions of the motor, determines that the first processor is abnormal if the deviation between the actual injection speed and the set injection speed during the injection process exceeds 10% or the injection dosage exceeds 5% of the set value, stops outputting the enable signal to the motor, and performs alarm reminding.
4. A dosage control system of an injection pen is characterized in that devices related to the dosage control system of the injection pen comprise a motor pushing module, a motor driving device, a first monitoring device, a second monitoring device, a first processor, a second processor and a PCBA;
the motor pushing module comprises a motor main body, a reduction box, a screw rod and a push rod;
the first processor, the second processor and the motor driving device are all arranged on the PCBA;
the first monitoring device is a motor encoder, and the second monitoring device is two acceleration sensors and comprises a first acceleration sensor and a second acceleration sensor.
5. A pen dosage control system as claimed in claim 4, wherein the two ends of said reduction box are connected to the motor body and the screw rod respectively, the reduction ratio is Y:1; the screw rod is connected with the inner thread of the push rod through the outer thread, and when the screw rod rotates, the screw thread drives the push rod to move in parallel.
6. The injection pen dosage control system of claim 4, wherein the motor encoder comprises two Hall sensors and a disc magnet, the Hall sensors are mounted on the tail of the motor body, and a rotating shaft extending from the tail of the motor is connected with the disc magnet.
7. The system as claimed in claim 4, wherein the first monitoring device is electrically connected to the first processor and the second processor respectively.
8. A pen dosage control system as claimed in claim 4, wherein the first acceleration sensor is mounted on the PCBA of the body and the second acceleration sensor is fixed to the push rod.
9. The injection pen dosage control system according to claim 4, wherein the acceleration sensor is any one of a single axis acceleration sensor or a three axis acceleration sensor.
10. The system of claim 4, wherein the first processor and the second processor are connected to the motor driving device, and the motor driving device is electrically connected to the motor body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211596594.8A CN115887830A (en) | 2022-12-12 | 2022-12-12 | Injection pen dosage control method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211596594.8A CN115887830A (en) | 2022-12-12 | 2022-12-12 | Injection pen dosage control method and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115887830A true CN115887830A (en) | 2023-04-04 |
Family
ID=86479488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211596594.8A Pending CN115887830A (en) | 2022-12-12 | 2022-12-12 | Injection pen dosage control method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115887830A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116849789A (en) * | 2023-07-24 | 2023-10-10 | 广州爱锘德医疗器械有限公司 | Bone cement injection equipment and anti-runaway device, control method and controller thereof |
| CN117109899A (en) * | 2023-08-28 | 2023-11-24 | 巨翊科技（上海）有限公司 | Measuring device and measuring method for motion parameters of push injection part of handle |
-
2022
- 2022-12-12 CN CN202211596594.8A patent/CN115887830A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116849789A (en) * | 2023-07-24 | 2023-10-10 | 广州爱锘德医疗器械有限公司 | Bone cement injection equipment and anti-runaway device, control method and controller thereof |
| CN117109899A (en) * | 2023-08-28 | 2023-11-24 | 巨翊科技（上海）有限公司 | Measuring device and measuring method for motion parameters of push injection part of handle |
| CN117109899B (en) * | 2023-08-28 | 2024-03-22 | 巨翊科技（上海）有限公司 | Method for measuring motion parameters of push injection part of handle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115887830A (en) | Injection pen dosage control method and system | |
| EP1095668B1 (en) | Electronic medication delivery pen having a multifunction actuator | |
| JP4278382B2 (en) | Electronically controlled syringe or injection device | |
| AU586376B2 (en) | Servo control system for a reciprocating piston respirator | |
| DK3216471T3 (en) | MEDICAL INJECTION DEVICE WITH ELECTRIC MOTOR DRIVE | |
| JP2801617B2 (en) | Fluid supply control / monitoring device for drug injection system | |
| CN115814206A (en) | Injection pen dosage control method and system | |
| US20170319790A1 (en) | Drug Delivery Device with Air-in-Cartridge Safety Feature | |
| JP2008529689A (en) | Method of keeping the motor speed in the injection device constant | |
| CN203802882U (en) | Micro guiding screw pump with magnetic resistance sensor | |
| RU2673983C1 (en) | Syringe dispenser of medicines | |
| JP6058873B2 (en) | Portable injection device and control method of portable injection device | |
| CN112386766A (en) | Anesthesia boosting instrument control method and anesthesia boosting instrument | |
| CN207370947U (en) | Syringe calibration system for syringe pump | |
| JPH02121672A (en) | Syringe injection device | |
| CN211935058U (en) | Medicament injector | |
| CN114618054A (en) | Micro-injection pump and injection control method | |
| JP6281069B2 (en) | Portable injection device and control method of portable injection device | |
| CN114616008A (en) | Drug delivery device with a system for measuring a set or delivered dose | |
| CN219022675U (en) | Accurate intelligent liquid pushing device | |
| CN111135393A (en) | Medicament injector | |
| US11484656B2 (en) | Drug solution administration device and method for controlling drug solution administration device | |
| CN208301930U (en) | It is a kind of for detecting the detection device of heparin pump installation | |
| CN220256565U (en) | Constant force tooth Zhou Tance ware | |
| CN214596706U (en) | Anesthesia boosting instrument |
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 |