CN209933703U - Injection pump - Google Patents
Injection pump Download PDFInfo
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- CN209933703U CN209933703U CN201920275695.2U CN201920275695U CN209933703U CN 209933703 U CN209933703 U CN 209933703U CN 201920275695 U CN201920275695 U CN 201920275695U CN 209933703 U CN209933703 U CN 209933703U
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Abstract
The utility model discloses an injection pump, which comprises a shell main body, a fixing mechanism and a pushing mechanism which are arranged on the shell main body, and a driving mechanism which is arranged in the shell main body and is in transmission connection with the pushing mechanism; the injection pump also comprises a control circuit, a display panel, a keyboard input panel and a detection module, wherein the display panel, the keyboard input panel and the detection module are respectively connected with the control circuit; the control circuit is used for controlling and coordinating the independent and matched work among all mechanisms of the injection pump; the display panel is used for displaying the working condition of the injection pump; the keyboard input panel is used for setting the working conditions of the injection pump; the detection module comprises a plurality of infrared geminate transistors and a pressure sensor and is used for detecting the injection speed of the injection pump in real time; the utility model discloses a set up infrared to nest of tubes and pressure sensor, but real time monitoring syringe pump injection speed reduces because the syringe pump injection speed is unusual and the incident that leads to.
Description
Technical Field
The utility model relates to the field of medical equipment, in particular to injection pump.
Background
At present, intravenous injection is a common clinical rescue and treatment method, and is also a common administration treatment technology. However, in the injection process of the injection pump, the problems of needle blockage, needle bending, inaccurate injection position and the like can occur, so that the injection speed of the injection pump is influenced; if the injection is too fast, heart failure may result, while if the injection is too slow, the dosage may be insufficient, and the treatment may be insufficient. Therefore, it is necessary to monitor the injection speed of the syringe pump so that the medical staff can know whether the injection pump has abnormal injection condition or not at the first time.
It is seen that improvements and enhancements to the prior art are needed.
SUMMERY OF THE UTILITY MODEL
In view of the foregoing disadvantages of the prior art, an object of the present invention is to provide an injection pump, which can monitor the change of the injection speed of the injection pump in real time and determine whether the injection pump has abnormal injection conditions, thereby reducing the safety accidents caused by abnormal injection speed.
In order to achieve the purpose, the utility model adopts the following technical proposal:
a syringe pump comprises a shell main body, a fixing mechanism arranged in the shell main body and used for fixing a syringe, a pushing mechanism which is slidably arranged on the shell main body and used for pressing the syringe, and a driving mechanism which is arranged in the shell main body and is in transmission connection with the pushing mechanism; the injection pump also comprises a control circuit, a display panel, a keyboard input panel and a detection module; the control circuit is arranged in the shell main body and is used for controlling and coordinating the work of each mechanism of the injection pump; the display panel is arranged on the shell main body and used for displaying the working condition of the injection pump; the keyboard input panel is arranged on the shell main body and is used for setting working conditions of the injection pump, such as selecting injection time, injection speed and the like of the injection pump; the detection module is arranged on the fixing mechanism and is used for respectively detecting the flow change and the weight change of the injector; the display panel, the keyboard input panel and the detection module are respectively connected to the control circuit.
In the injection pump, the detection module comprises a plurality of infrared geminate transistors and a pressure sensor, the fixing mechanism is used for fixing the injector and comprises a fixing groove which is arranged in the shell main body and penetrates through the shell main body from left to right, and a fixing device which is arranged on the right side of the shell main body and is used for being matched with the fixing groove; the infrared pair transistors are respectively and uniformly arranged on two sides of the fixed groove and used for detecting the flow change of the injector; the pressure sensor is arranged at the bottom of the fixing groove and used for detecting weight change of the injector; the infrared pair transistors and the pressure sensor are respectively connected to the control circuit.
In the injection pump, the control circuit comprises a control module for controlling the modules to work independently and coordinating the modules to work cooperatively, a power supply module for converting commercial power into direct current and storing electric quantity, a display module for displaying working information of the injection pump, a keyboard input module for acquiring information selected by a user in a keyboard input panel, an infrared information processing module for acquiring and processing information collected by infrared geminate transistors, a pressure information processing module for acquiring and processing information collected by a pressure sensor and an alarm module for alarming abnormal working conditions of the injection pump; the power module, the display module, the keyboard input module, the infrared information processing module, the pressure information processing module and the alarm module are respectively connected to the control module.
In the injection pump, the keyboard input panel comprises a numeric keyboard key, a power supply key, a speed setting key, a time setting key, a data clearing key, a confirmation key and a locking key.
In the injection pump, the alarm module comprises a display alarm module and a sound alarm module, the display alarm module displays alarm information on the display panel, the sound alarm module is a buzzer arranged in the shell main body, and the buzzer is connected to the control circuit.
In the injection pump, the infrared information processing module comprises a first signal amplification output circuit and a first A/D converter, the signal output end of the infrared pair transistor is sequentially connected with the first signal amplification output circuit and the first A/D converter, and the signal output end of the first A/D converter is connected with the control module; the pressure information processing module comprises a second signal amplification output circuit and a second A/D converter, the signal output end of the pressure sensor is sequentially connected with the second signal amplification output circuit and the second A/D converter, and the signal output end of the second A/D converter is connected with the control module.
In the injection pump, the control circuit further comprises an injector specification identification module, the injector specification identification module is used for recording information corresponding to injectors with different specifications, and the injector specification identification module is connected to the control module; the keyboard input panel also comprises a specification setting key.
Advantageous effects
Compared with the prior art, the utility model provides an injection pump sets up the infrared to nest of tubes and set up pressure sensor in the bottom of fixed slot through the both sides at the fixed slot, but real-time calculation injection pump's injection speed to compare with predetermined injection speed, reduce because the incident that injection pump injection speed leads to unusually.
Drawings
Fig. 1 is a schematic structural diagram of an injection pump provided by the present invention;
fig. 2 is a schematic structural view of a fixing mechanism of the injection pump provided by the present invention;
fig. 3 is a schematic structural diagram of a control circuit of the syringe pump provided by the present invention;
fig. 4 is a schematic structural diagram of an alarm module provided by the present invention;
fig. 5 is a schematic structural view of an injection pump according to another embodiment of the present invention;
fig. 6 is a schematic structural diagram of a control circuit according to another embodiment of the present invention.
Detailed Description
The utility model provides an injection pump, for making the utility model discloses a purpose, technical scheme and effect are clearer, make clear and definite, and it is right to refer to the attached drawing and to lift the embodiment below the utility model discloses do further detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
In the description of the present invention, it should be understood that the terms "two sides", "right side", "left side", etc. indicate the orientation or position relationship of the present invention based on the drawings, and are only for convenience of description and simplified description. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated; in addition, chinese utility model No. 201720707554.4 discloses a syringe pump, and its specification fig. 6 discloses the concrete structure of pushing mechanism and actuating mechanism, does not do this and does not describe herein any more.
Referring to fig. 1 to 4, the present invention provides an injection pump, which includes a housing main body 1, a fixing mechanism disposed in the housing main body 1 for fixing an injector 2, a pushing mechanism slidably disposed on the housing main body 1 for pressing the injector 2, and a driving mechanism (not shown) disposed in the housing main body 1 and in transmission connection with the pushing mechanism; in the embodiment, the pushing mechanism is a pushing handle 3 which is slidably arranged on the right side of the shell main body and is used for pressing the push rod of the injector; the driving mechanism comprises a connecting rod, a screw rod and a stepping motor, the connecting rod is fixed on the left side of the push handle 3, the tail end of the connecting rod is connected with the screw rod, and the screw rod is in transmission connection with the stepping motor; when the infusion device works, the control module (such as a singlechip control module) sends out a pulse signal to enable the stepping motor to rotate, and the stepping motor drives the screw rod to change the rotating motion into linear motion, so that the push rod of the injector 2 is pushed to inject and infuse; the change of the injection speed is realized by changing the rotation speed of the screw, namely, changing the frequency of the pulse signal sent by the control module.
Further, the syringe pump further comprises a control circuit (not shown in the figure), a display panel 4, a keyboard input panel 5 and a detection module (not shown in the figure); the control circuit is arranged in the shell main body and used for controlling and coordinating the independent and cooperative work among all mechanisms of the injection pump, for example, the control circuit can collect information input by the keyboard input panel 5 and display the processed corresponding information on the display panel 4; the display panel 4 is arranged on the shell main body 1 and is used for displaying the working condition of the injection pump; the keyboard input panel 5 is arranged on the shell main body 1 and is used for setting working conditions of the injection pump, such as the injection speed and the injection time of the injection pump; the detection module is arranged on the fixing mechanism and is used for respectively detecting the flow change and the weight change of the injector; the display panel 4, the keyboard input panel 5 and the detection module are respectively connected to the control circuit.
Further, the detection module comprises a plurality of infrared geminate transistors (not shown in the figure) and a pressure sensor (not shown in the figure), the fixing mechanism is used for fixing the injector 2, and comprises a fixing groove 61 which is arranged in the shell body and penetrates left and right, and a fixing device 62 which is arranged on the right side of the shell body and is used for being matched with the fixing groove 61; the infrared pair transistors are respectively and uniformly arranged on two sides of the fixing groove 61 and used for detecting the flow change of the injector; the pressure sensor is arranged at the bottom of the fixing groove 61 and used for detecting weight change of the injector; the infrared pair transistors and the pressure sensor are respectively connected to the control circuit.
The principle of measuring the liquid flow rate by the infrared pair of tube sets is as follows: the volume of the injector is fixed, and if a plurality of infrared geminate transistors are uniformly arranged on two sides of the injector, the volume of liquid in the injector corresponding to the adjacent infrared geminate transistors is fixed, for example, the volume of the injector arranged on the fixed groove is 20 ml, and if 20 groups of infrared geminate transistors are uniformly arranged on two sides of the fixed groove, the volume of liquid between the adjacent infrared geminate transistors is 1 ml; if no fluid passes through, the infrared signal received by the receiving tube in the infrared geminate transistor is weaker, and when fluid passes through, the infrared signal received by the receiving tube is stronger due to the light-gathering effect of the liquid; when the infrared signals received by the receiving tubes of the first group of infrared geminate transistors are weakened, the control module records the moment when the signals of the first group of infrared geminate transistors are weakened, and when the infrared signals received by the second group of infrared geminate transistors are weakened, the control module records the moment when the signals of the second group of infrared geminate transistors are weakened, so that the time required for the liquid to flow through two adjacent infrared geminate transistors is known; the injection speed of the injection pump is monitored in real time by measuring the time required for the injection pump to inject a certain volume of liquid, namely the time required for the fluid to pass through two adjacent infrared pair tubes, wherein the average flow speed of the fluid is equal to the volume divided by the time; in this embodiment, the infrared pair transistors may be, but are not limited to, 20 sets.
The principle of the pressure sensor for measuring the flow rate of the liquid is as follows: monitoring the syringe speed of the syringe pump in real time by measuring the change in weight of the syringe over an interval, which may be, but is not limited to, once every 10 seconds, with the average speed equal to the weight divided by the time; in addition, the pressure sensor is also used for measuring the injected medicine quantity, and the weight of the injector is changed by measuring the weight change of the injector in the interval time, namely the injected medicine quantity, wherein the interval time can be measured once every 10 seconds, but not limited; the pressure sensor can also be used for judging whether the injection of the injection pump is finished or not, the weight value of the used injector is preset, and when the weight value measured by the pressure sensor is consistent with the preset weight value of the injector, the injection pump finishes the injection work.
Furthermore, the control circuit comprises a control module, a power module, a display module, a keyboard input module, an infrared information processing module, a pressure information processing module and an alarm module, wherein the power module, the display module, the keyboard input module, the infrared information processing module, the pressure information processing module and the alarm module are respectively connected to the control module.
The working content of each module is as follows:
the control module is used for controlling the independent work of each module and coordinating the cooperation work among the modules, for example, the control module can process the information fed back by the keyboard input module, the detection module and the like and send the processed result to the display module for displaying; the control module can be but is not limited to an STC series single chip microcomputer.
The power supply module is used for converting commercial power alternating current into direct current and storing electric quantity; the power supply module comprises a voltage-stabilizing input circuit, an AC/DC module, a storage battery and a voltage-stabilizing output circuit, wherein the input end of the voltage-stabilizing input circuit is connected with commercial power, the output end of the voltage-stabilizing input circuit is connected with the input end of the AC/DC module, the output end of the AC/DC module is connected with the charging end of the storage battery, the discharging end of the storage battery is connected with the input end of the voltage-stabilizing output circuit, and the output end of the voltage-stabilizing output circuit is connected with the control module; when the injection pump is charged, commercial power is converted into direct current by the AC/DC module after passing through the voltage stabilization function of the voltage stabilization input circuit, the converted direct current is transmitted to the storage battery, and the storage battery stores electric quantity; when the injection pump works, the electric quantity stored in the storage battery is input into the control module through the voltage-stabilizing output circuit to form stable direct current.
The display module is used for displaying the working information of the injection pump fed back by the control module on the display panel; the information displayable by the display panel 4 includes the operation remaining power, the injection speed set by the user, the actually measured injection speed, the injection time set by the user, the total injection amount, the injected amount, the operation abnormality warning information, and the like.
And the keyboard input module is used for collecting information selected by a user in the keyboard input panel and feeding the information back to the control module, such as injection speed, injection time and the like set by the user.
The infrared information processing module is used for collecting and processing information collected by the infrared geminate transistors and transmitting the information to the control module, the control module calculates the injection speed according to the collected information, the infrared information module sends the collected information to the control module, the control module compares the measured injection speed with the preset injection speed, when the injection speed is abnormal, the control module stops sending pulse signals to the stepping motor, the injection pump stops injecting medicines, and the adverse effect is prevented from being enlarged.
And the pressure information processing module is used for collecting and processing the information collected by the pressure sensor and transmitting the information to the control module, and the control module calculates the injection speed according to the collected information of the weight change of the injection pump.
And the alarm module is used for alarming the abnormal working condition of the injection pump.
Further, the keyboard input panel 5 includes a numeric keyboard key, a power key, a speed setting key, a time setting key, a data clearing key, a confirmation key and a locking key; the power supply key is used for starting and closing the injection pump, and the power supply key is a physical key and can quickly close the injection pump in emergency; the speed setting key is used for setting the required injection speed, when a user presses the speed setting key, the injection speed can be set through the keys of the numeric keyboard, and when the confirmation key is pressed, the keyboard input module sends the information of the injection speed selected by the user to the control module; the time setting key is used for setting the required injection time, when a user presses the time setting key, the injection time can be set through the keys of the numeric keyboard, and when the confirmation key is pressed, the keyboard input module sends the injection time information selected by the user to the control module; the data clearing key is used for clearing information required to be modified, when a user presses the data clearing key, the keyboard input module sends a returned control signal to the control module, and the control module deletes recorded information; the locking key is used for locking the current working condition of the injection pump, when the injection pump starts to work, the keyboard input panel can enter a locking state, and a user can unlock the keyboard input panel by pressing the locking key for a long time, so that the normal work of the injection pump is prevented from being influenced by manual improper operation.
Preferably, the alarm module comprises a display alarm module and a sound alarm module, the display alarm module displays alarm information on the display panel, the alarm information highlights abnormal injection speed, for example, changes the display color of the injection speed, so that medical personnel can quickly judge abnormal conditions (over-fast and over-slow) of the injection speed and quickly make emergency response to the abnormal conditions; the sound alarm module is a buzzer arranged in the shell main body, the buzzer is connected to the control circuit, and when the actual injection speed is inconsistent with the preset injection speed, the control module controls the buzzer to sound to remind a user of stopping the work of the injection pump or remind medical staff of reinjection; the buzzer can also be used for reminding a user of completing injection, and when the weight information detected by the pressure sensor is consistent with the preset weight of the injector, the control module controls the buzzer to sound to remind the user of completing injection or reminding medical care personnel of carrying out treatment in the next step.
Furthermore, the infrared information processing module comprises a first signal amplification output circuit and a first A/D converter, the signal output end of the infrared pair transistor is sequentially connected with the first signal amplification output circuit and the first A/D converter, and the signal output end of the first A/D converter is connected with the control module; the pressure information processing module comprises a second signal amplification output circuit and a second A/D converter, the signal output end of the pressure sensor is sequentially connected with the second signal amplification output circuit and the second A/D converter, and the signal output end of the second A/D converter is connected with the control module; the first signal amplification circuit amplifies a current signal of the infrared geminate transistor into a larger voltage signal for a subsequent circuit to collect, and the second signal amplification circuit amplifies a current signal of the pressure sensor into a larger voltage signal for a subsequent circuit to collect; the first A/D converter and the second A/D converter respectively convert the collected analog signals into digital signals and output the digital signals to the control module.
Example 2
Referring to fig. 5 and fig. 6, the main difference between the present embodiment and embodiment 1 is: the control circuit further comprises an injector specification identification module, the injector specification identification module is used for recording information corresponding to injectors of different specifications, and the injector specification identification module is connected to the control module; the keyboard input panel also comprises a specification setting key.
The method for identifying the specification of the injector by the injection pump comprises the following steps:
(1) presetting: a user presses a specification setting key, the capacity of the injector to be detected is input through a numeric keyboard, and a keyboard input module transmits acquired information to a control module; the method comprises the steps that an injector to be detected is placed on a fixing groove, a pressure sensor on the fixing groove sends detected voltage signals corresponding to the injector to a control module, and the control module transmits the capacity of the injector and the corresponding voltage signals to an injector specification identification module for storage.
(2) Identification and detection: when a user uses the injection pump, the injector is placed on the fixing groove, the pressure sensor transmits the voltage signal obtained by induction to the control module, the control module transmits the voltage signal to the injector specification identification module for comparison, and the injector specification identification module returns the corresponding injector specification to the value control module.
It is understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such alterations and modifications are intended to fall within the scope of the appended claims.
Claims (7)
1. A syringe pump comprises a shell body, a fixing mechanism arranged in the shell body and used for fixing a syringe, a pushing mechanism which is slidably arranged on the shell body and used for pressing the syringe, and a driving mechanism which is arranged in the shell body and in transmission connection with the pushing mechanism, and is characterized by further comprising a control circuit, a display panel, a keyboard input panel and a detection module; the control circuit is arranged in the shell main body and is used for controlling and coordinating the independent and matched work among all mechanisms of the injection pump; the display panel is arranged on the shell main body and used for displaying the working condition of the injection pump; the keyboard input panel is arranged on the shell main body and used for setting the working condition of the injection pump; the detection module is arranged on the fixing mechanism and is used for respectively detecting the flow change and the weight change of the injector; the display panel, the keyboard input panel and the detection module are respectively connected to the control circuit.
2. The syringe pump of claim 1, wherein the detection module comprises a plurality of infrared pair transistors and a pressure sensor, the fixing mechanism is used for fixing the syringe and comprises a fixing groove which is arranged in the housing body and penetrates left and right, and a fixing device which is arranged on the right side of the housing body and is used for matching with the fixing groove; the infrared pair transistors are respectively and uniformly arranged on two sides of the fixed groove and used for detecting the flow change of the injector; the pressure sensor is arranged at the bottom of the fixing groove and used for detecting weight change of the injector; the infrared pair transistors and the pressure sensor are respectively connected to the control circuit.
3. The syringe pump of claim 2, wherein the control circuit comprises a control module for controlling the modules to work independently and coordinating the modules to work cooperatively, a power supply module for converting commercial power into direct current and storing electric quantity, a display module for displaying the working information of the syringe pump, a keyboard input module for collecting information selected by a user in a keyboard input panel, an infrared information processing module for collecting and processing information collected by infrared pair transistors, a pressure information processing module for collecting and processing information collected by a pressure sensor, and an alarm module for alarming abnormal working conditions of the syringe pump; the power module, the display module, the keyboard input module, the infrared information processing module, the pressure information processing module and the alarm module are respectively connected to the control module.
4. The syringe pump of claim 3, wherein said keypad input panel comprises numeric keypad keys, power keys, speed setting keys, time setting keys, data clear keys, confirmation keys, and lock keys.
5. The syringe pump of claim 3, wherein the alarm module comprises a display alarm module and a sound alarm module, the display alarm module displays alarm information on a display panel, the sound alarm module is a buzzer arranged in the housing main body, and the buzzer is connected to the control circuit.
6. The injection pump according to claim 3, wherein the infrared information processing module comprises a first signal amplification output circuit and a first A/D converter, the signal output ends of the infrared pair transistors are sequentially connected with the first signal amplification output circuit and the first A/D converter, and the signal output end of the first A/D converter is connected with the control module; the pressure information processing module comprises a second signal amplification output circuit and a second A/D converter, the signal output end of the pressure sensor is sequentially connected with the second signal amplification output circuit and the second A/D converter, and the signal output end of the second A/D converter is connected with the control module.
7. The injection pump of claim 4, wherein the control circuit further comprises an injector specification identification module, the injector specification identification module is used for recording information corresponding to injectors with different specifications, and the injector specification identification module is connected to the control module; the keyboard input panel also comprises a specification setting key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920275695.2U CN209933703U (en) | 2019-03-05 | 2019-03-05 | Injection pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920275695.2U CN209933703U (en) | 2019-03-05 | 2019-03-05 | Injection pump |
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| Publication Number | Publication Date |
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| CN209933703U true CN209933703U (en) | 2020-01-14 |
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| CN201920275695.2U Active CN209933703U (en) | 2019-03-05 | 2019-03-05 | Injection pump |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109893719A (en) * | 2019-03-05 | 2019-06-18 | 东莞友华医院股份有限公司 | A kind of syringe pump |
| CN112971970A (en) * | 2021-02-09 | 2021-06-18 | 杭州堃博生物科技有限公司 | Injection pump control method and system and injection pump |
-
2019
- 2019-03-05 CN CN201920275695.2U patent/CN209933703U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109893719A (en) * | 2019-03-05 | 2019-06-18 | 东莞友华医院股份有限公司 | A kind of syringe pump |
| CN112971970A (en) * | 2021-02-09 | 2021-06-18 | 杭州堃博生物科技有限公司 | Injection pump control method and system and injection pump |
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