CN108310545B

CN108310545B - Injection pump and loading method applied to injection pump

Info

Publication number: CN108310545B
Application number: CN201810068126.0A
Authority: CN
Inventors: 刘杰; 解文成
Original assignee: Medcaptain Medical Technology Co Ltd
Current assignee: Medcaptain Medical Technology Co Ltd
Priority date: 2018-01-23
Filing date: 2018-01-23
Publication date: 2020-10-09
Anticipated expiration: 2038-01-23
Also published as: CN108310545A

Abstract

The invention discloses an injection pump and a loading method applied to the injection pump. The loading method applied to the injection pump comprises the following steps: the injection pump is used for installing an injector, and the injector and the injection pump are manually loaded in a manual loading stage; and after the manual loading stage is determined to be finished, entering an automatic loading stage, and performing automatic loading operation on the injection pump in the automatic loading stage, wherein the automatic loading operation is the rest loading operation of the injector which is automatically performed on the injection pump except the manual loading operation before the injection preparation is finished. The loading method applied to the syringe pump of the present invention can take out the syringe in a short time in the manual loading stage by simultaneously and stepwise adopting the manual loading and the automatic loading. The automatic loading stage can ensure that the syringe is prevented from being pushed by mistake when being installed, and the clearance between the pushing block of the injection pump and the piston handle of the syringe is smaller, thereby improving the loading rate and the loading precision.

Description

Injection pump and loading method applied to injection pump

Technical Field

The invention relates to the technical field of medical equipment, in particular to an injection pump and a loading method applied to the injection pump.

Background

The injection pump is also called a micro pump, is used as an injection device, and is a medical apparatus for accurately, uniformly and continuously pumping liquid medicine into a human body in a micro amount. The operation is convenient, the timing and the quantification can be realized, the speed and the dosage can be adjusted at any time according to the disease condition, the workload of medical staff can be reduced, the working efficiency is improved, and the emergency treatment and the treatment of the medical staff are accurately, safely and effectively matched.

To ensure infusion accuracy and stability of the syringe pump, precise mechanical structure and precise programming support are required, and a tight fit between the syringe pump and the syringe is required. The existing loading modes of the injection pump and the injector mainly comprise manual loading and automatic loading.

However, when manual loading is used, since the accuracy of human control is limited, it is easy to push the drug solution by mistake with excessive force when the syringe is attached. In addition, manual loading tends to result in a gap between the pusher block of the syringe pump and the plunger handle of the syringe due to loose contact, thereby requiring a long time to eliminate the gap and effectively deliver the liquid when the syringe pump is infusing at a low rate, and further requiring a long time to achieve a stable infusion rate. When the automatic loading device is used, the fixed operation sequence is needed when the injector is taken down, and the process of automatically unfolding the pushing head needs to wait for a period of time, so the rescue efficiency of medical staff can be influenced in an emergency. In addition, although the prior art syringe pump supports both manual and automatic loading of syringes, the loading is complicated and error-prone because only one of automatic and manual loading can be selected for each loading.

Disclosure of Invention

The invention aims to provide a syringe pump capable of realizing the combination of automatic loading and manual loading simultaneously and in stages and a loading method applied to the syringe pump.

In order to solve the above technical problem, an embodiment of the present invention provides a loading method applied to a syringe pump, where the syringe pump includes a syringe and a syringe pump, and the loading method includes the following steps:

firstly, carrying out manual loading operation on the injector and the injection pump in a manual loading stage; and

and after the manual loading stage is determined to be finished, entering an automatic loading stage, and carrying out automatic loading operation on the injection pump in the automatic loading stage.

Embodiments of the present invention also provide a syringe pump for loading the syringe on the syringe pump by the loading method as described above.

The loading method applied to the injection pump adopts manual loading and automatic loading at the same time and in stages, so that the manual loading is completed in a manual control mode at the stage of adopting the manual loading, the operation habit of a user in clinic is met, and the injection can be taken out in a short time. In the stage of adopting automatic loading, the automatic loading is automatically completed through program control, so that the mistaken pushing prevention during the installation of the syringe is ensured, and the gap between the pushing block of the syringe pump and the piston handle of the syringe is ensured to be small, so that when the syringe pump is used for infusion at a low speed, the gap can be eliminated in a short time, and the stable infusion speed can be quickly reached. The syringe pump of the present invention can employ both manual loading and automatic loading simultaneously and in stages, thereby improving loading rate and loading quality.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an injection pump according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a manual loading stage applied to a syringe pump according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of an automatic loading stage applied to a syringe pump according to an embodiment of the present invention.

Fig. 4 is a flow chart of a method applied to a syringe pump according to an embodiment of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Further, the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, elements, components, and/or groups thereof. The following description is of the preferred embodiment for carrying out the invention, and is made for the purpose of illustrating the general principles of the invention and not for the purpose of limiting the scope of the invention. The scope of the present invention is defined by the appended claims.

Referring to fig. 1-3, a syringe pump 200 is provided for a preferred embodiment of the present invention. The syringe pump 200 is used to mount the syringe 100.

It will be appreciated that in other embodiments, the syringe pump 200 may also be used to mount other fluid infusion devices. In this embodiment, the syringe pump 200 can be used to mount different types of syringes 100.

The syringe 100 includes a receiving cylinder 101, a plunger 102 mounted in the receiving cylinder 101 and movably connected to the receiving cylinder 101, and a plunger handle 103 connected to the plunger 102. The receiving cylinder 101 is used for receiving a liquid to be injected, such as a medical liquid.

Wherein the process of installing the syringe 100 into the syringe pump 200 includes a manual loading stage and an automatic loading stage. The automatic loading operation is the rest of the loading operations of the syringe 100, which are automatically performed on the syringe pump 200, except for the manual loading operation before the injection preparation is completed, in other words, the means loading stage and the automatic loading stage do not repeat the corresponding loading operations, so that the instruction of the loading program can be simplified, and the automatic loading of the syringe pump 200 is prevented from being interfered, and the loading rate and efficiency are effectively improved.

The syringe pump 200 includes a pump body 1 for mounting the syringe 100 and a controller 2 provided on the pump body 1. The controller 2 is configured to determine whether the manual loading stage is finished, enter an automatic loading stage after determining that the manual loading stage is finished, and control the automatic loading operation of the syringe pump 200 in the automatic loading stage.

The injection pump 200 further includes a detection module 3 disposed on the pump body 1, and the detection module 3 is electrically connected to the controller 2. The detecting module 3 is used for detecting whether the injector 100 is pressed at a preset position.

The controller 2 controls the detection module 3 to detect that the injector 101 is pressed to a preset position, and determines that the manual loading stage is finished. The preset position is a position where the accommodating barrel 101 of the syringe 100 is press-fitted to the pump body 1 of the syringe pump 200, so that the syringe 100 is fixed to the pump body 1 of the syringe pump 200, thereby ensuring that the syringe pump 100 can be mounted in place during an automatic loading process.

The detecting module 3 is, for example, but not limited to, a pressure sensor, an angle sensor or a distance sensor. The distance sensor can be an infrared light sensor or an ultrasonic sensor, and other sensors capable of sensing distance, pressure and rotation angle can be applicable to the invention. When the receiving cylinder 101 of the injector 100 is pressed on the pump body 1 of the injection pump 200 and located at the preset position, the detecting module 3 generates a specific detecting signal, and the controller 2 determines that the manual loading stage is finished after receiving the specific detecting signal.

The injection pump 200 further comprises a pressure lever mechanism 4, and the pressure lever mechanism 4 is arranged on the pump body 1. The compression bar mechanism 4 is used for pressing the containing cylinder 101 of the syringe 100 on the pump body 1 of the syringe pump 200, so that the syringe 100 is tightly clamped on the pump body 1 of the syringe pump 200, and the syringe 100 can be installed in place in the automatic loading process.

Optionally, the plunger mechanism 4 may be electrically connected to the controller 2, and is configured to identify the specification of the syringe 100 and transmit the specification of the syringe 100 to the controller 2, so that the controller 2 controls the infusion rate of the medical fluid.

Wherein, the pressure lever mechanism 4 may comprise a trigger module 41. The trigger module 41 is configured to output a trigger action when the receiving cylinder 101 of the syringe 100 is manually pressed on the pump body 1 of the syringe pump 200. In some embodiments, when the receiving cylinder 101 of the injector 100 is press-fitted to the pump body 1 of the syringe pump 200, the trigger module 41 of the plunger mechanism 4 can generate a trigger action and transmit the trigger action to the controller 2, so that the controller 2 can send a corresponding instruction to enter automatic loading. That is, in some embodiments, the controller 2 can also receive a corresponding command to enter automatic loading of the plunger mechanism 4, determine that the manual loading phase is over, and enter automatic loading phase.

It is understood that the detecting module 3 can be disposed on the pressing rod mechanism 4, or disposed around the pressing rod mechanism 4.

Preferably, the detecting module 3 may be disposed on the pressing rod mechanism 4, so as to prevent the pressing rod mechanism 4 from obstructing a detecting range of the detecting module 3 during a rotation process.

In one embodiment, when the detecting module 3 is a distance sensor, it is configured to sense a distance between the injector 100 and the pressing rod mechanism 4, so as to generate a sensing value. When the sensed value is within the preset threshold range, indicating that the accommodating barrel 101 of the syringe 100 is pressed on the syringe pump 200; when the sensed value is outside the preset threshold range, it indicates that the receiving cylinder 101 of the syringe 100 is not pressed against the syringe pump 200, and thus the user needs to manually adjust the plunger mechanism 4 again. The specific detection signal is a detection signal having a sensing value within a preset threshold range.

In another embodiment, when the detecting module 3 is a pressure sensor, it can be further used for detecting the pressure between the syringe 100 and the pressing rod mechanism 4 to generate a sensing value. When the sensed value is within the preset threshold range, indicating that the accommodating barrel 101 of the syringe 100 is pressed on the syringe pump 200; when the sensed value is outside the preset threshold range, it indicates that the receiving cylinder 101 of the syringe 100 is not pressed against the syringe pump 200, and thus the user needs to manually adjust the plunger mechanism 4 again. The specific detection signal is a detection signal having a sensing value within a preset threshold range.

Further, in other embodiments, when the detecting module 3 is an angle sensor, it can be further used for detecting a rotation angle of the pressing rod mechanism 4 to generate a sensing value. It is understood that the rotation angle refers to an angle of the rotation of the plunger mechanism 4 in comparison with a horizontal plane of the syringe 100 during the rotation of the plunger mechanism 4. When the sensed value is within the preset threshold range, indicating that the accommodating barrel 101 of the syringe 100 is pressed on the syringe pump 200; when the sensed value is outside the preset threshold range, it indicates that the receiving cylinder 101 of the syringe 100 is not pressed against the syringe pump 200, and thus the user needs to manually adjust the plunger mechanism 4 again. The specific detection signal is a detection signal having a sensing value within a preset threshold range.

Optionally, the syringe pump 200 further includes a prompt module 6 electrically connected to the controller 2, and configured to output a prompt message to prompt the user to stop performing the manual loading operation, so as to avoid that the user continues to perform the manual loading operation and affects the loading efficiency.

It is understood that the prompting message is, for example, but not limited to, a sound, a light signal, a text message, or a vibration. In an embodiment, the prompt module 6 may be electrically connected to the detection module 3, and the prompt module 6 may output the prompt information according to the detection signal detected by the detection module 3.

In an embodiment, when the detecting module 3 detects that the accommodating barrel 101 of the injector 100 is pressed on the pump body 1 of the injection pump 200, or the triggering module 41 of the pressing rod mechanism 4 outputs a triggering action, the controller 2 controls the triggering module 41 to output the triggering action and receives the triggering action, so as to directly or indirectly control to enter an automatic loading stage. That is, in some embodiments, the controller 2 can also receive a corresponding instruction of the trigger module 41 to enter automatic loading, determine that the manual loading phase is finished, and enter automatic loading phase. In an embodiment, the triggering module 41 may be electrically connected to the prompting module 6, and the prompting module 6 may further output the prompting message according to a triggering action generated by the triggering module 41.

Optionally, the syringe pump 200 further comprises a display 7 electrically connected to the controller 2. The display 7 is used to display a confirmation dialog 71 for the user to confirm whether to switch to the auto-loading stage. It will be appreciated that the switch to the auto-loading phase occurs when the user confirms entry. Further, in some embodiments, the display 7 can display a confirmation dialog 71 according to a specific detection signal generated by the detection module 3 received by the controller 2, a corresponding instruction for entering the automatic loading of the pressing rod mechanism 4, or a prompt message output by the prompt module 6, so that a user can confirm the completion of the loading stage of the means and indirectly control the entering of the automatic loading stage.

It will be appreciated that display 7 may also be used for user input of various instructions, parameters, and display of various parameters and conditions of syringe pump 200, etc.

In particular, the display 7 comprises a display screen. The display screen may be a touch screen or other visualization device.

Optionally, a control switch 8 electrically connected to the controller 2 is further disposed on the pump body 1 of the syringe pump 200. The control switch 8 is used to activate or deactivate the auto-loading operation of the syringe pump 200. The control switch 8 is electrically connected to the controller 2 and is specifically configured to generate an on signal or an off signal to turn on or off the auto-loading operation of the syringe pump 200, i.e., in some embodiments, the controller 2 directly controls entry into the auto-loading phase upon receiving the on signal of the control switch 8. In other embodiments, the user may also manually control the on or off of the control switch 8 according to a specific detection signal generated by the detection module 3 received by the controller 2, a corresponding instruction for entering the automatic loading of the pressing rod mechanism 4, or a prompt message output by the prompt module 6, so as to end the instrument loading stage and indirectly control the entering of the automatic loading stage.

Further, the syringe pump 200 further includes a propelling mechanism 5 disposed on the pump body 1. The pushing mechanism 5 is used for pushing the piston rod 102 of the syringe 100 to move. The propelling mechanism 5 comprises a connecting rod 51, a pushing block 52 and a clutch switch 53. The clutch switch 53 is disposed on the pushing block 52, and the pushing block 52 is fixed to the connecting rod 51.

In this embodiment, the clutch switch 53 is a push button switch, and when the user presses the clutch switch 53 to separate the propulsion mechanism 5 from the pump body 1, the user can slide the propulsion mechanism 5 by himself to perform a manual loading operation. Here, in other embodiments, the clutch switch 53 may be another type of switch such as a rotary switch or a tact switch. The clutch switch 53 may be directly electrically connected to a clutch driving device (not shown) provided in the pump body 1, or may be electrically connected to the clutch driving device through the controller 2, and the controller 2 performs corresponding operations on the clutch driving device.

It will be appreciated that the syringe 100 may be pre-loaded with a medical fluid to be injected prior to manual loading of the syringe 100.

Wherein the clutch switch 53 is turned on before the manual mounting of the syringe 100 to the operation of the syringe pump 200. The manual operation of the manual loading stage may include: the pushing block 52 is manually moved a distance away from the pump body 1, and the plunger mechanism 4 is pulled up, so as to mount the syringe 100 to be injected. It is understood that the distance may be a length distance required for loading the syringe 100 into the pump body 1 of the syringe pump 200, a maximum distance that the pushing block 52 of the syringe pump 200 can move, or any distance between the length distance and the maximum distance. Further, when the injector 100 needs to be replaced, after the pressure lever mechanism 4 is pulled up, the injector 100 to be replaced is taken out, and then the injector 100 to be injected is installed. That is, in the present embodiment, the on of the clutch switch 53 may be a manual operation in a manual loading stage.

Optionally, the propelling mechanism 5 further comprises a propelling driving motor (not shown). The pushing driving motor can drive the connecting rod 51 to slide, so as to drive the pushing block 52 to move, and further to move the pushing block 52 a distance away from the pump body 1, so as to mount the injector 100. That is, in another embodiment, the on of the clutch switch 53 may be an automatic operation in a manual loading stage.

The propulsion mechanism 5 further comprises a detection device 54 electrically connected to the controller 2. The detecting device 54 is disposed on the pushing block 52. The detection device 54 is, for example, but not limited to, a hall sensor, a pressure sensor, or a position sensor, and other devices that can sense the installation of the plunger stem 103 and the pusher block 52 of the syringe 100 are suitable for use in the present invention. The detection device 54 is used for sensing whether the piston handle 103 and the pushing block 52 of the syringe 100 are installed in place. In an embodiment, the information sensed by the detecting device 54 is sent to the controller 2, and when the controller 2 judges that the sensed information is within the preset threshold according to the sensed information, it is determined that the pushing block 52 is in place with the syringe 100, that is, it is determined that the syringe is installed in place. The controller 2 sends control information to the propulsion driving motor and other components according to the sensed information so as to execute corresponding instructions.

In the present embodiment, the detecting device 54 is preferably a pressure sensor. The pressure sensor is used for entering an automatic loading stage after the containing cylinder 101 of the injector 100 is pressed on the pump body 1, and is pressed against the piston handle 103 of the injector 100 to sense the pressure of the injector, and the pressure sensor is electrically connected to the controller 2. By the pressing fit of the pressure sensor and the piston handle 103 of the injector 100, the pressure of the piston handle 103 can be sensed to generate corresponding pressure information and transmit the pressure information to the controller 2. The controller 2 judges whether the push block 52 is in place in contact with the syringe 100 according to the pressure information to determine whether the push block is in place. Specifically, when the controller 2 judges that the pressure exceeds the preset threshold value according to the pressure information, it is determined that the push block 52 is in place in contact with the syringe 100, that is, it is determined that the syringe is installed in place. And the controller 2 sends control information to the propulsion driving motor and other components according to the pressure information so as to execute corresponding instructions.

The advancing mechanism 5 further comprises a clamping assembly 55 electrically connected to the controller 2, the clamping assembly 55 being adapted to release or clamp the plunger shaft 103 of the syringe 100. The clamping assembly 55 comprises two symmetrically arranged jaws 551 and a clamping driving motor (not shown), each jaw 551 is in transmission connection with the pushing block 52, and each jaw 551 is arranged on one side surface of the pushing block 52 facing the injector 100. The clamping driving motor is in transmission connection with a jaw 551 to drive the jaw 551 to rotate, so that the two jaws 551 move away from or close to each other to realize the loosening or clamping of the piston handle 103 of the syringe 100. The clamp driving motor is electrically connected to the controller 2 to be operated under the control of the controller 2. The controller 2 controls the clamping of the driving motor to rotate forward and backward, so that the jaws 551 are controlled to open and close, and the piston handle 103 of the syringe 100 is loosened or clamped.

Wherein the controller 2 enters into an automatic loading stage according to the information sensed by the detection device 54, controls the jaws 551 of the clamping assembly to clamp the piston handle 103 of the syringe 100, and controls the pushing block 52 to push the piston handle 103 of the syringe 100 and start injection.

In this embodiment, the syringe pump 200 further includes a memory 9 disposed on the pump body 1, and the memory 9 is electrically connected to the controller 2 to operate under the control of the controller 2. The memory 9 is used for storing various instructions for performing auto-loading, and the like.

It will be appreciated that in one embodiment, the controller 2 is further configured to control the syringe pump 200 to return to the manual loading stage to await the next round of loading operation after determining that the automatic loading is complete.

When the medical fluid in the receiving tube 101 of the syringe 100 is completely infused, the syringe 100 needs to be replaced or a new syringe 100 needs to be replaced, and the controller 2 can automatically control the control switch 8 to reset to end the automatic loading operation and determine the entering means stage. In addition, the user can turn off the control switch 8 by himself to cut off the automatic loading operation to enter the instrument loading stage.

Wherein, the controller 2 is used for controlling the syringe pump 200 to execute various instructions inputted by a user. The controller 2 is a control center of the terminal, connects various parts of the entire terminal by using various interfaces and lines, and executes various functions of the terminal and processes data by operating or executing programs and/or modules stored in the memory 9 and calling data stored in the memory 9. The controller 2 may be composed of an Integrated Circuit (IC), for example, a single packaged IC, or a plurality of packaged ICs with the same or different functions may be connected. For example, the controller 2 may include only a Central Processing Unit (CPU), or may be a combination of a CPU, a Digital Signal Processor (DSP), a Graphics Processing Unit (GPU) and various control chips. In the embodiment of the present invention, the CPU may be a single operation core, or may include multiple operation cores.

The memory 9 can be used for storing software programs and modules, and the controller 2 executes various functional applications of the terminal and implements data processing by calling the software programs and modules stored in the memory 9. The memory 9 may be a computer-readable storage medium, which may include: flash disks, Read-only memories (ROMs), Random Access Memories (RAMs), magnetic or optical disks, and the like. The memory 9 mainly includes a program storage area and a data storage area, wherein the program storage area can store an operating system, an application program required by at least one function, and the like; the data storage area may store data created according to the use of the terminal, and the like. In the embodiment of the present invention, the operating system may be an Android system, an iOS system, a Windows operating system, or the like.

Specifically, as shown in fig. 4, fig. 4 is a schematic flow chart of a loading method applied to a syringe pump 200 according to an embodiment of the present invention, and specifically, as shown in fig. 4, the loading method applied to the syringe pump 200 includes the following steps:

step S401, firstly, in the manual loading stage, the injector 100 and the syringe pump 200 are manually loaded.

Specifically, the manual loading operation includes: the syringe 100 is manually mounted to the syringe pump 200, and the syringe 100 is press-fitted to the syringe pump 200. It will be appreciated that during the manual loading stage, the corresponding operations are performed in a manually controlled manner, so that clinical practice can be followed, and the user can quickly remove or load the syringe 100.

Further, prior to the operation of manually mounting the syringe 100 to the syringe pump 200, the manual loading operation further includes:

turning on the clutch switch 53 and manually moving the pushing block 52 of the pushing mechanism 5 a distance in a direction away from the pump body 1; and

the plunger mechanism 4 is pulled up and the syringe 100 to be injected is mounted.

It is understood that in other embodiments, the user may not activate the clutch switch if the pusher block 52 of the syringe pump 200 does not engage the plunger handle 103 of the syringe 100. When a new syringe 100 needs to be replaced or an original syringe 100 needs to be replaced, the pushing block 52 of the pushing mechanism 5 needs to be moved away from the pump body 1 by a distance, which may be a length distance required for loading the syringe 100 into the pump body 1 of the syringe pump 200, a maximum distance that the pushing block 52 of the syringe pump 200 can move, or any distance between the length distance and the maximum distance, so that the syringe 100 can be prevented from being damaged during loading.

Step S402, after determining that the manual loading stage is finished, entering an automatic loading stage, and performing an automatic loading operation on the syringe pump 200 in the automatic loading stage.

Specifically, determining the end of the manual loading phase comprises:

detecting whether the syringe 100 is pressed at a preset position; and

when the injector 100 is detected to be pressed at the preset position, the manual device stage is determined to be finished.

It can be understood that the preset position is a position where the receiving cylinder 101 of the syringe 100 is press-fitted to the pump body 1 of the syringe pump 200, that is, after the syringe 100 is mounted to the syringe pump 200, the receiving cylinder 101 of the syringe 100 is press-fitted through the plunger mechanism 4 of the syringe pump 200, so as to prevent the syringe 100 from moving and causing a large gap between the pushing block 52 of the syringe pump 200 and the piston handle 103 of the syringe 100, which affects the stability of the infusion liquid.

The detection module 3 can detect a distance between the injector 100 and the pressure lever mechanism 4, or detect a pressure between the injector 100 and the pressure lever mechanism 4, or detect a rotation angle of the pressure lever mechanism 4. When the receiving cylinder 101 of the injector 100 is pressed on the pump body 1 of the injection pump 200 and located at the preset position, the detecting module 3 generates a specific detecting signal, and the controller 2 determines that the manual loading stage is finished after receiving the specific detecting signal.

Specifically, in an embodiment, the detecting module 3 is configured to detect a distance between the pressing rod mechanism 4 and the injector 100, and compare the detected distance with a preset threshold range. It is understood that when the detected distance is within the preset threshold range, it indicates that the receiving cylinder 101 of the injector 100 is pressed against the plunger mechanism 4 of the syringe pump 200, and vice versa. The preset threshold value may be stored in the memory 9 in advance. The specific detection signal is a detection signal having a sensing value within a preset threshold range.

In another embodiment, the detecting module 3 can be further configured to detect a pressure between the syringe 100 and the pressing rod mechanism 4, so as to generate a sensing value. It is understood that when the detected pressure is within the preset threshold range, it indicates that the receiving cylinder 101 of the injector 100 is pressed against the plunger mechanism 4 of the syringe pump 200, and vice versa. The sensed value may also be stored in the memory 9 in advance, and the preset threshold value is, for example, the pressure of the syringe 100 for the receiving barrel 101 to be normally pressed against the syringe pump 200, i.e. the minimum pressure of the syringe 100 for the receiving barrel 101 to be pressed against the syringe pump 200, so as to ensure the normal loading and infusion work of the syringe 100. The specific detection signal is a detection signal having a sensing value within a preset threshold range.

In another embodiment, the detecting module 3 can be further configured to detect a rotation angle of the pressing rod mechanism 4, and accordingly generate a sensing value. It is understood that when the detected rotation angle is within the preset threshold range, it indicates that the receiving cylinder 101 of the injector 100 is pressed against the plunger mechanism 4 of the syringe pump 200, and vice versa. The specific detection signal is a detection signal having a sensing value within a preset threshold range.

Optionally, before entering the automatic loading stage, the method further includes: when the containing cylinder 101 of the injector 100 is pressed on the pump body 1 of the injection pump 200, the trigger module 41 of the pressure lever mechanism 4 can output a trigger action and transmit the trigger action to the controller 2, so that the controller 2 can send a corresponding instruction for entering into automatic loading. That is, in some embodiments, the controller 2 can also receive a corresponding command to the plunger mechanism 4 to enter automatic loading, determine that the manual loading phase is over, and enter automatic loading phase. Further, the controller 2 can send control information to the reminding module 6 or the control switch 8 to execute corresponding instructions, so that the syringe pump 200 can timely handle subsequent automatic loading operation to ensure loading speed in an emergency.

Optionally, before entering the automatic loading stage, the method further includes: and outputting prompt information to prompt the user to stop the manual loading operation.

It is understood that the prompting message is, for example, but not limited to, a sound, a light signal, a text message, or a vibration. When the detection module 3 detects that the accommodating barrel 101 of the injector 100 is pressed on the pump body 1 of the injection pump 200, or the trigger module 41 of the pressure lever mechanism 4 outputs a trigger action, the controller 2 controls the prompt module 6 to output the prompt information, and receives the prompt information, so as to directly or indirectly control the automatic loading stage. That is, in some embodiments, the controller 2 can also receive a corresponding instruction of the prompt module 6 to enter automatic loading, determine that the manual loading stage is finished, and enter automatic loading stage. Further, the user can select to activate the control switch 8 to confirm to enter the automatic loading stage according to the prompt message or the trigger action.

Optionally, before entering the automatic loading stage, the method further includes:

a control confirmation dialog 71 for the user to confirm whether to switch to the auto-load phase; and

and switching to the automatic loading stage after the user confirms the entry.

Before entering the automatic loading stage, the display 7 may display a confirmation dialog 71 for the user to confirm whether to switch to the automatic loading stage, so as to remind the user to avoid the user from mistakenly continuing to manually load the syringe 100 and the syringe pump 200. Further, in some embodiments, the display 7 can display a confirmation dialog 71 according to a specific detection signal generated by the detection module 3 received by the controller 2, a corresponding instruction for entering the automatic loading of the pressing rod mechanism 4, or a prompt message output by the prompt module 6, so that a user can confirm the completion of the loading stage of the means and indirectly control the entering of the automatic loading stage.

It will be appreciated that the control switch 8 is electrically connected to the controller 2 and is specifically configured to generate an on signal or an off signal to turn on or off the auto-loading operation of the syringe pump 200, i.e., in some embodiments, the controller 2 controls the auto-loading phase to be entered upon receiving the on signal from the control switch 8. That is, the controller 2 may directly and automatically control the syringe pump 200 to enter the auto-loading stage, or the user may select to activate the control switch 8 or touch the confirmation dialog 71 of the display 7 to confirm the end of the auto-loading stage and enter the auto-loading stage according to the instruction received by the controller 2 to enter the auto-loading stage.

Step S403, after determining that the automatic loading is completed, controlling the syringe pump 200 to return to the manual loading stage to wait for the next round of loading operation.

It is understood that when the medical fluid in the receiving tube 101 of the syringe 100 is completely infused, the syringe 100 needs to be replaced or a new syringe 100 needs to be replaced, and the controller 2 can automatically control the means entering stage, or the user can automatically turn off the control switch 8 to cut off the automatic loading operation to enter the means loading stage.

Further, when an abnormal automatic loading operation is detected, such as a blockage of an injection passage of the syringe 100, a leakage of the syringe 100, or the like, the user may close the control switch 8 by himself or herself to interrupt the automatic loading operation, so that the syringe 100 may be inspected or replaced with a new one.

Specifically, the syringe pump 200 further includes a detection device 54 press-fitted in a preset position, and the automatic loading operation in the automatic loading stage includes:

the pushing block 52 presses against the piston handle 103 of the syringe 100, and senses whether the piston handle 103 of the syringe 100 and the syringe pump 200 are installed in place through the detection device 54; and

according to the sensed information, the claw 551 of the clamping assembly 55 is controlled to clamp the piston handle 103 of the injector 100, and the pushing block is controlled to push the piston handle 103 of the injector 100 to move, and injection is started.

It can be understood that, in the automatic loading stage, the automatic loading is performed under the control of a program, that is, the pushing block 52 of the syringe pump 200 automatically presses and clamps the piston handle 103 of the syringe 100, so that the automatic loading is prevented from being mistakenly pushed when the syringe 100 is installed, and the gap between the pushing block 52 of the syringe pump 200 and the piston handle 103 of the syringe 100 is ensured to be small enough, so that the infusion liquid can reach a stable speed without taking a long time, and the rescue efficiency of medical staff is improved in an emergency situation.

The loading method applied to the injection pump adopts manual loading and automatic loading at the same time and in stages, so that the manual loading is completed in a manual control mode at the stage of adopting the manual loading, the operation habit of a user in clinic is met, and the injection can be taken out in a short time. In the stage of adopting automatic loading, the automatic loading is automatically completed through program control, so that the mistaken pushing prevention during the installation of the syringe is ensured, and the gap between the pushing block of the syringe pump and the piston handle of the syringe is ensured to be small, so that when the syringe pump is used for infusion at a low speed, the gap can be eliminated in a short time, and the stable infusion speed can be quickly reached. In addition, in the automatic loading stage, because a fixed operation sequence is required when the syringe is taken down, and a period of time is required for the process of automatically unfolding the pushing head, the rescue efficiency of the medical staff can be affected in an emergency. Furthermore, due to the staged operation of automatic loading and manual loading, the loading mode is simplified, errors in the loading process are avoided, and the loading rate and quality are improved.

The above embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.

Claims

1. A loading method applied to a syringe pump for mounting a syringe, the syringe pump including a pushing mechanism, comprising the steps of:

firstly, carrying out manual loading operation on the injector and the injection pump in a manual loading stage;

detecting whether the injector is pressed at a preset position;

determining that the manual loading stage is finished when the injector is detected to be pressed at a preset position; and

and after the manual loading stage is determined to be finished, automatically entering an automatic loading stage, and performing automatic loading operation on the injection pump in the automatic loading stage, wherein the manual loading operation comprises loading operation before the injector is manually pressed to the preset position, and the automatic loading operation is loading operation of automatically controlling the pushing mechanism to move until the pushing mechanism is pressed and connected with a piston handle of the injector after the manual loading operation before the injection preparation of the injector is finished.

2. The loading method according to claim 1, wherein the syringe includes a container for containing the liquid, and the predetermined position is a position where the container of the syringe is press-fitted to the syringe pump.

3. The loading method of claim 1, wherein the syringe pump includes a plunger mechanism, and the step of detecting whether the syringe is mounted in the predetermined position includes:

sensing the distance or pressure between the injector and the pressure lever mechanism to generate a sensing value; and

judging whether the sensed sensing value is within a preset threshold range;

or is

Sensing the rotation angle of the pressure lever mechanism to generate a sensing value; and

and judging whether the sensed sensing value is within a preset threshold range.

4. The loading method according to claim 3, wherein the syringe pump further comprises a pump body, the advancing mechanism and the plunger mechanism provided on the pump body, and a controller electrically connected to the advancing mechanism, wherein the advancing mechanism comprises a clutch switch, and wherein the manual loading operation further comprises:

starting the clutch switch, and manually moving the propelling mechanism for a certain distance in the direction away from the pump body;

pulling up the pressure lever mechanism and installing the injector to be injected; and

and the injector is pressed and installed on the injection pump through the pressure lever mechanism.

5. The loading method of claim 3, wherein said determining the end of the manual loading phase comprises:

detecting whether the pressure lever mechanism generates a trigger action; and

when the trigger action of the pressure lever mechanism is detected, the automatic loading stage is controlled to be started.

6. The loading method of claim 1, further comprising, prior to said entering into an auto-loading phase: and outputting prompt information to prompt the user to stop the manual loading operation.

7. The loading method of claim 1, wherein prior to entering the automatic loading phase, the method further comprises: controlling a confirmation dialog box for a user to confirm whether to switch to the automatic loading stage; and

and switching to the automatic loading stage after the user confirms the entry.

8. The loading method of claim 1, wherein prior to entering the automatic loading phase, the method further comprises: the injection pump comprises a control switch, and the injection pump is controlled to enter an automatic loading stage according to an opening signal or a closing signal generated by the control switch for opening or closing the automatic loading operation of the injection pump.

9. The loading method according to claim 1, wherein the syringe pump further comprises a detection device press-fitted at a predetermined position, the syringe pump comprises a push block and a clamp assembly provided on the push block, and the automatic loading operation in the automatic loading stage comprises: the syringe comprises a piston rod and a piston handle connected with the piston rod,

the pushing block is pressed against a piston handle of the injector, and whether the piston handle of the injector and the injection pump are installed in place or not is sensed through the detection device; and

and controlling the clamping assembly to clamp a piston handle of the injector and controlling the pushing block to push a piston rod of the injector to move according to the sensed information, and starting injection.

10. The loading method according to claim 1, wherein after determining that the automatic loading is completed, controlling the syringe pump to resume the manual loading phase to wait for a next round of loading operation.

11. Syringe pump, characterized in that it is used for loading the syringe on the syringe pump by the loading method according to any one of claims 1 to 10.