Control method, system and storage medium for a syringe

Abstract

The application relates to the technical field of medical equipment, in particular to a control method and system of a syringe and a storage medium. The control method is applied to a syringe comprising a piston assembly; wherein the piston assembly is connected with a driving member, and the control method comprises the following steps: acquiring power of the driving member; wherein the driving member is used for driving the piston assembly to move; judging a current movement type of the piston assembly according to the power of the driving member; and in the case that the current movement type of the piston assembly is determined as back-off, further judging a change trend of the power, and in response to the power appearing a trend of decreasing and then increasing again, controlling the driving member to stop driving the piston assembly. By acquiring the power of the driving member to control the back-off process of the piston assembly of the syringe, the control method provided by the application effectively reduces the leakage of liquid after the syringe is pulled out, and also reduces the dose of liquid sucked back from human tissues during the back-off process of the plunger of the syringe.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and more specifically, to a control method, system, and storage medium for a syringe. Background Technology

[0002] Syringes can be divided into manual syringes and electric syringes. Electric syringes have the advantages of being stable, labor-saving, having a stable injection speed, and being easy to use.

[0003] Currently, with most syringes, after the needle is withdrawn from the body tissue during injection, residual liquid in the syringe leaks out. This leaked liquid may splash onto human tissue (such as the skin), causing an unpleasant experience for the patient. Especially during oral anesthetic injections, residual liquid often drips into the patient's mouth after the syringe is withdrawn, potentially causing harm if the patient ingests it. Summary of the Invention

[0004] The purpose of this application is to provide a control method, system, and storage medium for a syringe, which reduces liquid leakage after the syringe is withdrawn by controlling the retraction process of the syringe piston assembly.

[0005] In a first aspect, embodiments of this application provide a control method for a syringe, the control method being applied to a syringe including a piston assembly; wherein the piston assembly is connected to a driving member, the method comprising: acquiring the power of the driving member; wherein the driving member is used to drive the piston assembly to move; determining the current movement type of the piston assembly based on the power of the driving member; and, if the current movement type of the piston assembly is determined to be retraction, further determining the trend of the power change, and responding to a trend of the power decreasing and then increasing again, controlling the driving member to stop driving the piston assembly.

[0006] The aforementioned syringe control method effectively reduces liquid leakage after the syringe is withdrawn by controlling the retraction process of the syringe piston assembly using the power of the driving component. It also reduces the amount of liquid drawn back from human tissue during the syringe plunger retraction process.

[0007] In conjunction with the first aspect, optionally, determining the current movement type of the piston assembly includes: determining whether a retraction command for controlling the piston assembly to retract has been received; if the retraction command is received, then determining that the current movement type of the piston assembly is retraction.

[0008] The aforementioned syringe control method determines the current movement type of the piston assembly based on whether a retraction command for controlling the piston assembly to retract is received, thus achieving a more accurate determination of the piston movement type and improving the precision of syringe control. Furthermore, compared to methods that determine the piston assembly movement type solely by detecting current or voltage, this method eliminates the need for corresponding detection devices, saving costs.

[0009] In conjunction with the first aspect, optionally, obtaining the power of the driving component includes: obtaining the current value flowing through the driving component; determining the current movement type of the piston assembly includes: determining whether the current direction flowing through the driving component is opposite to the current direction flowing through the driving component in response to a forward command; wherein, the forward command is used to control the piston assembly to move forward; if the current direction flowing through the driving component is opposite to the current direction flowing through the driving component in response to a forward command, then the current movement type of the piston assembly is determined to be retraction.

[0010] The aforementioned syringe control method, by detecting the current in the branch where the drive component is located, determines the piston assembly's motion type, achieving a more accurate assessment of the piston's motion type and thus improving the precision of syringe control. Furthermore, compared to determining the piston's motion type based on commands, it eliminates the delay caused by command response time, allowing for more timely acquisition of information regarding piston motion type switching, ultimately further improving the precision of syringe control.

[0011] In conjunction with the first aspect, optionally, determining the trend of power change and controlling the drive member to stop driving the piston assembly in response to a trend of power decreasing and then increasing again includes: determining the trend of current value change and controlling the drive member to stop driving the piston assembly in response to a trend of current decreasing and then increasing again.

[0012] The aforementioned syringe control method, by responding to the trend of the current value decreasing and then increasing again, controls the drive to stop driving the piston assembly. This achieves control of the drive to drive the piston assembly as soon as the piston head begins to retract after it has fully recovered its deformation. This further avoids leakage of the liquid to be injected after the injection is withdrawn because the piston head is still recovering its deformation. It also reduces the amount of liquid drawn back by the injection as the piston head continues to retract after it has recovered its deformation.

[0013] In conjunction with the first aspect, optionally, controlling the drive member to stop driving the piston assembly in response to the trend of power decreasing and then increasing again includes: obtaining the minimum value after the power drops to a minimum value; and controlling the drive member to stop when the power value is equal to the sum of the minimum value and a preset value; wherein the preset value is determined based on the accuracy of detecting the power.

[0014] The above-described syringe control method is problematic because it is difficult to obtain the minimum value before the piston assembly fully recovers its deformation. Therefore, by determining a power value as close as possible to the minimum value based on the detection accuracy, the driving component is controlled to stop driving the piston assembly at the moment the power value appears, thereby reducing the amount of liquid aspirated by the syringe during the piston assembly's retraction process.

[0015] In conjunction with the first aspect, optionally, it further includes: if it is determined that the current movement type of the piston assembly is retraction, then controlling the drive member to reduce the driving speed of the piston assembly.

[0016] The above-mentioned syringe control method reduces the driving speed of the piston assembly when the current movement type of the piston assembly is determined to be retraction, thereby reducing the control error caused by the delay time in the control of the driving component and further improving the control accuracy of the syringe.

[0017] In conjunction with the first aspect, optionally, the syringe includes an oral anesthesia booster.

[0018] The aforementioned syringe control method, by employing the syringe control methods provided in the various embodiments of this application to control the oral anesthesia booster, to a certain extent avoids problems such as anesthetic leakage into the patient's mouth and accidental ingestion by the patient during the injection of anesthetic into the patient's mouth. It also reduces the amount of liquid aspirated from the patient's oral tissues when the piston assembly retracts.

[0019] Secondly, embodiments of this application also provide a control system for a syringe, including: a syringe, a drive component, and a controller; the syringe includes a piston assembly; the output shaft of the drive component is connected to the piston assembly to drive the piston assembly to move; the controller is used to detect the power of the drive component; acquire the power of the drive component; and determine the current movement type of the piston assembly. If the current movement type of the piston assembly is determined to be retraction, the controller further determines the trend of power change and, in response to a secondary power increase trend, controls the drive component to stop driving the piston assembly.

[0020] In conjunction with the first aspect, optionally, during the process of determining the current motion type of the piston assembly, the controller is specifically used to determine whether to issue a retraction command for controlling the piston assembly to retract; if the retraction command is issued, then the current motion type of the piston assembly is determined to be retraction.

[0021] The above embodiments provide a syringe control system that has the same beneficial effects as the syringe control method provided by the first aspect or any alternative embodiment of the first aspect, which will not be elaborated here.

[0022] Thirdly, embodiments of this application also provide an electronic device, including: a processor and a memory, the memory storing machine-readable instructions executable by the processor, which, when executed by the processor, perform the method described above.

[0023] The above embodiments provide an electronic device that has the same beneficial effects as the syringe control method provided in the first aspect or any alternative embodiment of the first aspect, which will not be elaborated here.

[0024] Fourthly, embodiments of this application also provide a storage medium, the storage medium including a computer-readable storage medium; the computer-readable storage medium stores a computer program, which is executed by a processor to perform the methods described above.

[0025] The storage medium provided in the above embodiments has the same beneficial effects as the syringe control method provided in the first aspect or any alternative embodiment of the first aspect, and will not be described in detail here.

[0026] In summary, the syringe control method, system, and storage medium provided in this application effectively reduce liquid leakage after syringe withdrawal by controlling the retraction process of the syringe piston assembly through the power of the driving component. It also reduces the amount of liquid drawn back from human tissue during the syringe plunger retraction process. The current movement type of the piston assembly is determined by whether a retraction command for controlling the piston assembly retraction is received, eliminating the need for a corresponding detection device and saving costs. The accuracy of syringe control is further improved by detecting the current in the branch where the driving component is located to determine the movement type of the piston assembly. By responding to the trend of a decrease followed by an increase in the current value, the driving component is controlled to stop driving the piston assembly, further preventing leakage of the liquid to be injected after injection withdrawal and the amount of liquid drawn back during continued injection retraction after the piston head recovers its deformation. In particular, applying this syringe control method, system, and storage medium to the control of an oral anesthesia booster device can, to a certain extent, prevent the leakage of anesthetic into the patient's mouth and the accidental ingestion of anesthetic during oral anesthetic injection. This also reduces the amount of liquid that is drawn back from the patient's oral tissues when the piston assembly retracts. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 A flowchart illustrating the syringe control method provided in this application embodiment;

[0029] Figure 2 This application provides a diagram showing the changing trend of the force during the retraction of the piston assembly.

[0030] Figure 3 A detailed flowchart of step S140 in the syringe control method provided in this application embodiment;

[0031] Figure 4 A detailed flowchart of step S160 in the syringe control method provided in this application embodiment;

[0032] Figure 5 A schematic diagram of the control system for the syringe provided in an embodiment of this application;

[0033] Figure 6 A schematic diagram of an electronic device provided in an embodiment of this application.

[0034] Icons: 500, Syringe control system; 510, Syringe; 511, Piston assembly; 520, Drive unit; 530, Controller; 600, Electronic device; 611, Memory; 612, Memory controller; 613, Processor; 614, Peripheral interface; 615, Input / output unit; 616, Display unit. Detailed Implementation

[0035] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0036] Unless otherwise defined, 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 is for the purpose of describing particular embodiments only and is not intended to limit this application.

[0037] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0038] Syringes typically consist of a piston assembly with a piston head. The piston is usually made of an elastic material such as rubber. During injection, the piston head deforms due to pressure within the syringe. This deformation is usually caused by the piston head being compressed under high pressure within the syringe. Furthermore, as the piston assembly advances towards the injected liquid, the pressure on the piston head increases, leading to greater deformation. If the needle is withdrawn before the piston head returns to its original shape after injection, the reduced pressure within the syringe as the needle is pulled out of the tissue will cause the piston head to begin returning to its original shape. This process may squeeze out any remaining injected liquid, resulting in leakage onto the patient's tissues (e.g., skin). In severe cases, if the stopper deforms significantly, a large amount of anesthetic may be sprayed onto the patient's skin.

[0039] In view of this, this application provides a control method, system, and storage medium for a syringe to solve the above problems. Specifically, please refer to the embodiments and accompanying drawings provided in this application.

[0040] Please refer to Figure 1 , Figure 1This is a flowchart of a syringe control method provided in an embodiment of this application. The syringe control method provided in this application is applied to a syringe including a piston assembly. The piston assembly is connected to a driving component. The method may include:

[0041] Step S120: Obtain the power of the driving component. The driving component is used to drive the piston assembly.

[0042] Step S140: Determine the current motion type of the piston assembly based on the power of the driving component.

[0043] Step S160: If the current motion type of the piston assembly is determined to be retraction, the trend of power change is further determined, and in response to the trend of power decreasing and then increasing again, the drive component is controlled to stop driving the piston assembly.

[0044] All three steps described above can be executed by the controller.

[0045] In step S120, the driving component can be a motor, and a lead screw can be installed on the motor output shaft. A lead screw nut matching the lead screw can be installed on the piston assembly of the syringe. Through the combination of the lead screw and the lead screw nut, the rotational motion output by the motor can typically be converted into linear motion, which acts on the piston assembly of the syringe, thereby driving the piston assembly forward and backward. The forward movement of the piston assembly allows the syringe to inject the liquid to be injected into the target patient, while the backward movement of the piston assembly reduces the pressure inside the syringe tubing and draws the liquid into the syringe tubing. The forward movement of the piston assembly responds to the forward command of the controller, and the backward movement of the piston assembly responds to the backward command of the controller. The power of the driving component can be obtained by acquiring the current value flowing through the driving component under a constant voltage output power supply, or by acquiring the voltage value between the two input terminals of the driving component under a constant current output power supply.

[0046] When a piston assembly is driven by a motor or other driving component, the forward or backward movement of the piston assembly is typically controlled by switching between clockwise and counterclockwise rotation of the motor. This switching is usually achieved by changing the direction of the current flowing through the driving component. Therefore, step S140 can be specifically implemented by monitoring the current value flowing through the driving component throughout the injection process. If a change in the current direction is detected, it can be determined that a switch has occurred between the forward and backward movement of the piston assembly. The change in current direction can be determined based on whether the detected current value is positive or negative.

[0047] For example, during the forward movement of the piston assembly, one of the detected current values ​​is 5A. Since it is uncertain at what specific moment the movement of the piston assembly will switch to retraction, by continuously detecting the current flowing through the drive component, if one of the subsequently detected current values ​​is -4A, then since the current value has changed from positive to negative, it can be determined that the movement type of the piston assembly has switched to the retraction process at the moment corresponding to the -4A current value.

[0048] Correspondingly, the current motion type of the piston assembly can also be determined by detecting the voltage between the two input terminals of the drive component. The principle is similar to that described above and will not be repeated here.

[0049] The above step S140 can also be implemented as follows: in response to the patient's operation or a preset injection program, upon receiving a retraction command for controlling the retraction of the piston assembly, determining that the current movement type of the piston assembly is retraction.

[0050] The principle upon which step S160 above is based is, according to the formula It can be seen that the relationship between the torque output by the driving component and the thrust generated is given by the formula, where F... a T is the axial force generated by the lead screw. a P represents the lead screw torque. h n is the lead of the feed screw; n1 is the positive efficiency of the feed screw. Under constant voltage output, the motor current and the motor output torque satisfy the formula T = K. t In this formula, T represents the motor output torque; K t Let I be the torque constant; and let I be the motor current. Furthermore, the relationship between the screw torque and the motor output torque satisfies the formula T... a =n·T, where T is the number of elements in the formula. a Similarly, n represents the lead screw torque; n is the efficiency of the conversion from the motor output torque to the lead screw output torque.

[0051] Based on the above three formulas, we can derive... In this formula, because The parameters in the equation are all fixed values, therefore they can be equated with C. Clearly, the axial force F generated by the lead screw... a It is directly proportional to the motor current I.

[0052] Additionally, please refer to Figure 2 , Figure 2This is a graph showing the changing trend of the force during the retraction of the piston assembly provided in this application embodiment. During the retraction process, before the piston head recovers its deformation, the pressure on the piston head is equal to the force exerted by the piston assembly on the lead screw and the motor. As the piston assembly gradually retracts, this force gradually decreases until the piston head fully recovers its deformation. Since the piston assembly and the motor are connected by a lead screw and nut, there is also a force of equal magnitude and the same direction between the lead screw and the nut. Furthermore, the essence of the motion conversion by the lead screw and nut is the relative sliding between the external thread on the lead screw and the internal thread on the nut. Sliding motion involves sliding friction, which is proportional to the pressure between the relatively sliding objects. Therefore, in the lead screw and nut, the sliding friction between them is proportional to the force described above (the force exerted by the piston assembly on the lead screw).

[0053] Before the piston head recovers its deformation, the force between the piston assembly and the lead screw gradually decreases. When the piston head fully recovers its deformation, the force between the piston assembly and the lead screw also decreases to its minimum value. This corresponds to... Figure 2 The changing trend of the force between the piston assembly and the lead screw between times t0 and t2.

[0054] After this point, assuming the syringe is still not withdrawn from the human tissue, as the piston assembly continues to retract, the pressure inside the syringe tubing will continue to decrease, and consequently, the force between the piston assembly and the lead screw will increase in the opposite direction. Following the same principle described earlier, the force between the piston assembly and the lead screw gradually increases. This corresponds to... Figure 2 The changing trend of the force between the piston assembly and the lead screw after time t2.

[0055] According to the law that "forces act in pairs," the force between the piston assembly and the lead screw is equal to the axial force F generated by the lead screw. a Combining this with the previous conclusions, the axial force F generated by the lead screw a Since the relationship between the current and the motor current I is direct, it can be inferred that the trend of current change with time should also be the same. Figure 2 The changing trend of the force between the middle piston assembly and the lead screw. However, the difference lies in... Figure 2 The trend of the motor current I shown in the diagram is a gradual increase between t0 and t1. This is because the process from the motor starting from a speed of 0 to reaching a point where the output matches the current is typically the process of the motor establishing a steady state. Therefore, the motor current gradually increases during this process.

[0056] Based on the above combination Figure 2As described, if the syringe is withdrawn before time t2, the plunger head usually hasn't fully recovered its deformation, which greatly increases the likelihood of leakage. If the syringe isn't withdrawn after time t2, it will typically draw back the injectable fluid and / or body tissue fluid into the syringe during this stage. Withdrawing the syringe at time t2 usually effectively avoids both of these situations.

[0057] Similarly, under constant current output, the voltage between the two input terminals of the driver should also be... Figure 2 The trend shown. The power of the drive component should also be... Figure 2 The trend of change is shown in the figure.

[0058] Therefore, by acquiring the power of the driving component, the syringe can be pulled out immediately after the piston head has recovered its deformation, which can effectively prevent injection leakage.

[0059] In the above implementation process, by controlling the retraction process of the syringe piston assembly using the power of the driving component, the leakage of liquid after the syringe is withdrawn is effectively reduced. It also reduces the amount of liquid drawn back from human tissue during the syringe plunger retraction process.

[0060] Please refer to Figure 3 , Figure 3 This is a flowchart illustrating step S140 of the syringe control method provided in this application. In some optional implementations, step S140 may include:

[0061] Step S141: Determine whether a retraction command for controlling the retraction of the piston assembly has been received.

[0062] If a retraction command is received, then step S142 is executed: determine that the current motion type of the piston assembly is retraction.

[0063] Step S141 can be executed by the controller. Based on the previous description of step S140, the current movement type of the piston assembly can be determined by whether a command for controlling the retraction of the piston assembly is received. The retraction movement of the piston assembly refers to the piston assembly moving along the syringe tubing away from the liquid in the tubing.

[0064] In the case where the controller includes a processor and a driver, the processor sends a retraction command to the driver, and the driver receives the retraction command and, in response to the retraction command, controls the motor and other driving components to retract the piston assembly. Therefore, step S141 can be specifically implemented as follows: when the driver receives the retraction command from the processor, the controller determines that the current movement type of the piston assembly is retraction.

[0065] In the above implementation process, the current movement type of the piston assembly is determined by whether a retraction command for controlling the piston assembly to retract is received. This achieves a more accurate determination of the piston movement type, thereby improving the precision of controlling the syringe. Furthermore, compared to methods that determine the piston assembly movement type by detecting current or voltage, this method eliminates the need for corresponding detection devices, saving costs.

[0066] In some alternative implementations, step S121 may include:

[0067] Step S121: Obtain the current value flowing through the driving component.

[0068] Accordingly, step S140 may include:

[0069] Step S143: Determine whether the current direction flowing through the drive component is opposite to the current direction flowing through the drive component in response to the forward command. The forward command is used to control the piston assembly to move forward.

[0070] If the direction of the current flowing through the drive component is opposite to the direction of the current flowing through the drive component in response to the forward command, then step S143 is executed: determine that the current motion type of the piston assembly is retraction.

[0071] The two steps described above can be performed by the controller.

[0072] In step S121 above, the current value can be obtained by installing a current detector on the current branch flowing through the drive component and sending the detection result to the controller.

[0073] Accordingly, based on the preceding description of step S140, in step S143, the controller can determine the current motion type of the piston assembly based on the detection result sent by the current detector. The determination of the piston assembly's motion type can be continuous, so as to obtain information on the switching of the piston assembly's motion type as soon as possible.

[0074] In the above implementation process, the piston assembly's motion type is determined by detecting the current in the branch where the drive component is located, achieving another more accurate method for determining the piston's motion type, thereby improving the precision of syringe control. Furthermore, compared to determining the piston's motion type based on commands, this method eliminates the delay caused by command response time, allowing for more timely acquisition of information on piston motion type switching, ultimately further improving the precision of syringe control.

[0075] In some alternative implementations, step S160 may include:

[0076] Step S161: Determine the trend of current value change, and in response to the trend of current value decreasing and then increasing again, control the drive to stop driving the piston assembly.

[0077] Step S161 can be executed by the controller.

[0078] In step S161, based on the preceding description of step S160 and... Figure 2 It can be seen that the current change trend has two rising phases. The first rising phase corresponds to the process of the driving components such as the motor establishing a steady state, and the second rising phase corresponds to the process of the piston assembly continuing to retract after the piston head has fully recovered its deformation. Therefore, when the current increases for the second time, that is, when the current value decreases and then increases again, controlling the piston assembly to stop retraction can achieve more precise control of the syringe, thereby reducing the occurrence of leakage or backflow.

[0079] In the above implementation process, by responding to the trend of the current value decreasing and then increasing again, the drive unit is controlled to stop driving the piston assembly. This achieves the control of the drive unit to drive the piston assembly as soon as the piston head begins to continue to retract after it has fully recovered its deformation. This further avoids leakage of the liquid to be injected due to the piston head continuing to recover its deformation after the injection is withdrawn, and also reduces the amount of liquid drawn back by the injection as the piston head continues to retract after it has recovered its deformation.

[0080] Please refer to Figure 4 , Figure 4 This is a flowchart illustrating step S160 in the syringe control method provided in this application. In some optional embodiments, step S160 may further include:

[0081] Step S162: After the power drops to the minimum value, obtain the minimum value.

[0082] Step S163: When the power value equals the sum of the minimum value and the preset value, the control drive stops. The preset value is determined based on the accuracy of the power detection.

[0083] The two steps described above can be performed by the controller.

[0084] The minimum power value in the above steps can be obtained by detecting the current or voltage value of the driving component. During the piston assembly retraction process, since it is difficult to obtain the minimum power value before it occurs (i.e., it is difficult to detect the minimum power value before it occurs), the minimum power value can be obtained after it occurs. This minimum power value corresponds to the moment when the piston assembly has just fully recovered its deformation; therefore, the piston assembly should be stopped from retraction as soon as possible after the minimum power value occurs.

[0085] For example, since power is proportional to current, the optimal moment for the control piston assembly to stop retraction can be determined by detecting the current value of the drive component. Specifically, the accuracy of the drive component current value detection is 0.1A. During the phase where the current value decreases and then increases again, the minimum current value obtained by detection is 5.0A. After this minimum value is reached, the current value will rise again, and the rise in current value is gradual. Furthermore, given that the current detection accuracy is 0.1A, during the current increase, current values ​​such as 5.1A, 5.2A, 5.3A, etc., are typically detected. If the preset value is set to be equal to the detection accuracy value, it means that when the detected current value is 5 + 0.1 = 5.1A, the drive unit will stop driving the piston assembly. If the preset value is set to twice the accuracy value, it means that when the detected current value is 5 + 0.2 = 5.2A, the drive unit will stop driving the piston assembly. If the preset value is set to three times the accuracy value, it means that when the detected current value is 5 + 0.3 = 5.3A, the drive unit will stop driving the piston assembly.

[0086] In the above implementation process, since it is not easy to obtain the minimum value before the piston assembly has fully recovered its deformation, a power value that is as close as possible to the minimum value is determined based on the detection accuracy. When the power value appears, the drive unit is controlled to stop driving the piston assembly, thereby reducing the amount of liquid aspirated by the syringe during the piston assembly retraction process.

[0087] In some optional implementations, the syringe control method provided in this application embodiment may further include:

[0088] If the current motion type of the piston assembly is determined to be retraction, then step S180 is executed: control the drive component to reduce the driving speed of the piston assembly.

[0089] The above step S180 can be executed by a controller, specifically by reducing the driving speed of the drive component to 80%, 60%, etc. Regarding the specific reduction amount, this application embodiment does not impose specific limitations; those skilled in the art can determine it according to actual needs.

[0090] The above implementation process reduces the driving speed of the piston assembly when the current movement type of the piston assembly is determined to be retraction, thereby reducing the control error caused by the delay time in the control of the driving component, and further improving the control accuracy of the syringe.

[0091] In some alternative implementations, the syringe may include an oral anesthesia booster.

[0092] That is, the syringe control method provided in each embodiment is applied to the control of the oral anesthesia booster.

[0093] In the above implementation process, by using the syringe control method provided in the various embodiments of this application to control the oral anesthesia booster, problems such as leakage of anesthetic into the patient's mouth and accidental ingestion by the patient are avoided to a certain extent during the injection of anesthetic into the patient's mouth. At the same time, it reduces the amount of liquid aspirated from the patient's oral tissues when the piston assembly retracts.

[0094] Please refer to Figure 5 , Figure 5 This is a schematic diagram of the control system 500 for the syringe 510 provided in this application embodiment. Based on the same concept, this application embodiment provides a control system 500 for the syringe 510, which includes: syringe 510, drive 520 and controller 530.

[0095] The syringe 510 includes a piston assembly 511. The output shaft of the drive member 520 is connected to the piston assembly 511 to drive the piston assembly 511 to move. The controller 530 is used to detect the power of the drive member 520; acquire the power of the drive member 520; and determine the current movement type of the piston assembly 511. If the current movement type of the piston assembly 511 is determined to be retraction, the controller further determines the trend of power change and, in response to a secondary power increase trend, controls the drive member 520 to stop driving the piston assembly 511.

[0096] In some optional implementations, during the process of determining the current motion type of the piston assembly 511, the controller 530 is specifically used to determine whether to issue a retraction command to control the piston assembly 511 to retract; if the retraction command is issued, the current motion type of the piston assembly 511 is determined to be retraction.

[0097] It should be understood that this system corresponds to the above-described syringe control method embodiment and is capable of executing the various steps involved in the above method embodiment. The specific functions of the device can be found in the description above. To avoid repetition, detailed descriptions are omitted here.

[0098] Please refer to Figure 6 , Figure 6 This is a schematic diagram of an electronic device provided in an embodiment of this application. Based on the same concept, an embodiment of this application provides an electronic device 600, which may include a memory 611, a memory controller 612, a processor 613, a peripheral interface 614, an input / output unit 615, and a display unit 616. Those skilled in the art will understand that... Figure 5The structure shown is for illustrative purposes only and does not limit the structure of the electronic device 600. For example, the electronic device 600 may also include components that are more... Figure 5 The more or fewer components shown, or having the same Figure 5 The different configurations shown.

[0099] The aforementioned memory 611, memory controller 612, processor 613, peripheral interface 614, input / output unit 615, and display unit 616 are electrically connected directly or indirectly to achieve data transmission or interaction. For example, these components can be electrically connected to each other through one or more communication buses or signal lines. The aforementioned processor 613 is used to execute executable modules stored in the memory.

[0100] The memory 611 can be, but is not limited to, Random Access Memory (RAM), Read Only Memory (ROM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), etc. The memory 611 stores programs, and the processor 613 executes these programs upon receiving execution instructions. The methods executed by the electronic device 600, as defined in any embodiment of this application, can be applied to or implemented by the processor 613.

[0101] The aforementioned processor 613 may be an integrated circuit chip with signal processing capabilities. The processor 613 may be a general-purpose processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc.; it may also be a digital signal processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor.

[0102] The peripheral interface 614 described above couples various input / output devices to the processor 613 and the memory 611. In some embodiments, the peripheral interface 614, the processor 613, and the memory controller 612 can be implemented in a single chip. In other instances, they can be implemented by separate chips.

[0103] The aforementioned input / output unit 615 is used to provide data input to the patient. The input / output unit 615 may be, but is not limited to, a mouse and keyboard, etc.

[0104] The aforementioned display unit 616 provides an interactive interface (e.g., a patient operation interface) between the electronic device 600 and the patient, or displays image data for the patient's reference. In this embodiment, the display unit may be a liquid crystal display or a touch display. If it is a touch display, it may be a capacitive touchscreen or a resistive touchscreen that supports single-point and multi-point touch operations. Supporting single-point and multi-point touch operations means that the touch display can sense touch operations generated simultaneously from one or more locations on the touch display, and hand over the sensed touch operations to the processor for calculation and processing.

[0105] The electronic device 600 in this application embodiment can be used to perform various steps in the various methods provided in this application embodiment.

[0106] Based on the same concept, embodiments of this application also provide a storage medium, which includes a computer-readable storage medium. A computer program is stored on the computer-readable storage medium, and the computer program is executed by a processor to perform the methods described above.

[0107] The computer-readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read Only Memory (EPROM), Programmable Red-Only Memory (PROM), Read-Only Memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0108] In summary, the syringe control method, system, and storage medium provided in the various embodiments of this application effectively reduce liquid leakage after the syringe is withdrawn by controlling the retraction process of the syringe piston assembly through the power of the driving component. It also reduces the amount of liquid drawn back from human tissue during the syringe plunger retraction process. The current movement type of the piston assembly is determined based on whether a retraction command for controlling the piston assembly retraction is received, eliminating the need for a corresponding detection device and saving costs. The accuracy of syringe control is further improved by detecting the current in the branch where the driving component is located to determine the movement type of the piston assembly. By responding to the trend of a decrease followed by an increase in the current value, the driving component is controlled to stop driving the piston assembly, further preventing leakage of the liquid to be injected after withdrawal and the amount of liquid drawn back during the continued retraction after the piston head recovers its deformation. In particular, applying this syringe control method, system, and storage medium to the control of an oral anesthesia booster device can, to a certain extent, prevent the leakage of anesthetic into the patient's mouth and the accidental ingestion of anesthetic by the patient during oral anesthetic injection. This also reduces the amount of liquid that is drawn back from the patient's oral tissues when the piston assembly retracts.

[0109] It should be understood that the disclosed apparatus and methods can also be implemented in other ways, given the several embodiments provided in this application. The apparatus embodiments described above are merely illustrative. For example, the flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code, which contains one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than those marked in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, or they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram and / or flowchart, and combinations of blocks in block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

[0110] In addition, the functional modules in the various embodiments of this application can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0111] The above description is only an optional implementation of the embodiments of this application, but the protection scope of the embodiments of this application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the embodiments of this application should be covered within the protection scope of the embodiments of this application.

Claims

1. A storage medium, characterized in that, The storage medium includes a computer-readable storage medium; a computer program is stored on the computer-readable storage medium, the computer program being executed by a processor to perform a control method for a syringe, the control method being applied to a syringe including a piston assembly; wherein the piston assembly is connected to a drive member, the drive member being used to drive the piston assembly to move; the method includes: Determine the current motion type of the piston assembly; and If the current movement type of the piston assembly is determined to be retraction, the trend of power change is further determined, and in response to the trend of power decrease followed by an increase, the drive unit is controlled to stop driving the piston assembly. The step of determining the current movement type of the piston assembly includes: determining whether a retraction command for controlling the piston assembly to retract has been received; if the retraction command is received, then determining that the current movement type of the piston assembly is retraction; or determining whether the direction of the current flowing through the drive member is opposite to the direction of the current flowing through the drive member in response to a forward command; wherein, the forward command is used to control the piston assembly to move forward; if the direction of the current flowing through the drive member is opposite to the direction of the current flowing through the drive member in response to a forward command, then determining that the current movement type of the piston assembly is retraction. The step of determining the trend of power change and controlling the drive to stop driving the piston assembly in response to a trend of power decreasing and then increasing again includes: determining the trend of current value change and controlling the drive to stop driving the piston assembly in response to a trend of current decreasing and then increasing again.

2. The storage medium according to claim 1, characterized in that, The step of controlling the drive to stop driving the piston assembly in response to a decrease in power followed by a subsequent increase in power includes: After the power drops to a minimum value, the minimum value is obtained; and When the power value equals the sum of the minimum value and the preset value, the drive unit is controlled to stop; wherein the preset value is determined based on the accuracy of the power detection.

3. The storage medium according to claim 1, characterized in that, Also includes: If it is determined that the current movement type of the piston assembly is retraction, then the drive component is controlled to reduce the driving speed of the piston assembly.

4. The storage medium according to any one of claims 1 to 3, characterized in that, in, The syringe includes an oral anesthesia booster.

5. A control system for a syringe, characterized in that, include: Syringe, drive unit, and controller; The syringe includes a piston assembly; The output shaft of the drive unit is connected to the piston assembly to drive the piston assembly to move; The controller is used to execute a computer program relating to a control method for a syringe stored in the storage medium according to any one of claims 1 to 4.

6. The system according to claim 5, characterized in that, In determining the current motion type of the piston assembly, the controller is specifically used to determine whether to issue a retraction command to control the piston assembly to retract. If the retraction command is issued, the current motion type of the piston assembly is determined to be retraction.

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