Column type analgesia pump device based on flow adjusting system
By designing a segmented analgesia pump device, the problem of adding or reducing drug dosages in existing technologies has been solved, enabling independent control and proportional adjustment of different drugs, thereby improving analgesic effect and patient comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2026-03-24
AI Technical Summary
Current technology cannot address the issue of individually adding or reducing the dosage of a single drug, which makes it difficult for patients to achieve the desired analgesic effect.
Design a column-type analgesic pump device based on a flow regulation system, comprising at least two independent drug chambers. Each drug chamber is connected to a power pump through an independent drug inlet and an adjustable valve. The proportion of different drugs and individual control can be achieved by adjusting the opening of the valve.
It enables independent control and adjustment of different drugs, allowing for timely adjustment of drug ratios, thus improving analgesic efficacy and patient comfort.
Smart Images
Figure CN224023990U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of analgesia, especially relates to a column formula analgesia pump device based on flow regulation system. BACKGROUND
[0002] Patient-controlled analgesia (PCA) was proposed in the 1970s. In recent years, the close combination of microcomputers and modern medicine has enhanced the accuracy, reliability, and safety of PCA, i.e., postoperative patients can control the timing and dosage of drug administration according to their own analgesic needs.
[0003] The analgesic drugs commonly used in analgesia pumps mainly include analgesics, sedatives, and antiemetics, etc. Doctors mix and load these drugs into the inner container of the analgesia pump after adjusting them according to the patient's condition. Various drugs are simultaneously input into the patient's body. The clinical use has the following problems: when the patient has an adverse reaction, it is impossible to individually add or reduce a certain drug in the analgesia pump, and only the mixed drugs in the analgesia pump can be added or reduced together, making it difficult for the patient to achieve the ideal analgesic effect. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a column formula analgesia pump device based on flow regulation system to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.
[0005] To solve the above technical problems, the technical scheme adopted is a column formula analgesia pump device based on flow regulation system, which comprises: a main body provided with at least two independent medicine cavities, each medicine cavity is provided with a medicine liquid injection port outside the main body, and the top of the main body is provided with a containing cavity; a power pump installed on the main body, the output end of the power pump is a liquid outlet, and each medicine cavity is independently connected with the input end of the power pump through a fixed channel; and an adjustable valve installed in the fixed channel, the adjustable valve is provided with an opening degree adjusting switch, and the switch is arranged outside the main body.
[0006] The technical scheme has at least the following beneficial effects: at least two independent medicine cavities are provided, different types of drugs can be injected through the medicine liquid injection port, the opening degree of the adjustable valve can be changed by operating the switch, the ratio of different drugs pumped out can be realized, the mixed medicine liquid is pumped out by the power pump, the patient is given analgesia, and when the patient has an adverse reaction, a certain drug can be individually added or reduced in time, so that the patient can achieve a more ideal analgesic effect and the comfort of the patient is improved.
[0007] As a further improvement of the above technical solution, the power pump comprises a shell and a driving motor mounted outside the shell, a pump cavity is formed in the shell, an annular cam rotor is rotatably mounted on the side wall of the pump cavity, a transfusion hose is provided through the pump cavity, one end of the transfusion hose is a liquid outlet, the other end is communicated with the fixed channel, and a plurality of convex parts are arranged on the outer periphery of the annular cam rotor and can abut against the transfusion hose. The structure of the power pump does not need to contact the liquid, and the contamination of the liquid can be maximally guaranteed.
[0008] As a further improvement of the above technical solution, the bottom of the shell is embedded at the opening of the accommodating cavity, and first screws are arranged on both sides of the top of the main body and are screwed with the shell. Through the first screws, the shell and the main body can be conveniently connected.
[0009] As a further improvement of the above technical solution, a supporting beam for supporting the shell is mounted on the side wall of the accommodating cavity. Thus, the mounting stability of the shell is guaranteed.
[0010] As a further improvement of the above technical solution, a sealing ring is mounted between the fixed channel and the transfusion hose. The sealing property between the fixed channel and the transfusion hose is guaranteed.
[0011] As a further improvement of the above technical solution, an electric control system and a shell are further included, the shell, the main body and the electric control system are all mounted in the shell, the electric control system comprises a control chip, the control chip is electrically connected with the driving motor, and the shell is provided with a plurality of keys for regulating the control chip. The driving parameters of the driving motor can be conveniently regulated.
[0012] As a further improvement of the above technical solution, one of the adjustable valves is replaced by an electronic valve electrically connected with the electric control system. The medicine cavity connected with the electronic valve is a main medicine cavity, and other medicine cavities are sub medicine cavities. The proportion of the main medicine cavity can be regulated by regulating the flow rates of all the sub medicine cavities, so that the overall structure is simplified, the cost is reduced, and the economy is improved.
[0013] As a further improvement of the above technical solution, the electric control system further comprises a display mounted on the outside of the shell and electrically connected with the control chip.
[0014] As a further improvement of the above technical solution, a pressure sensor for detecting the residual amount of liquid medicine is arranged in each medicine cavity; a flow sensor for detecting the flow rate of liquid medicine and a timer for recording the infusion time are arranged in each fixed channel, the pressure sensor, the flow sensor and the timer are electrically connected with the control chip, and the display can be used to display the related information of the residual amount of liquid medicine, the flow rate of liquid medicine and the infusion time. In order to understand the liquid medicine conditions of each medicine cavity.
[0015] As a further improvement of the above technical solution, the opening and closing door is rotatably installed on one side of the shell, and the opening and closing door is provided with a second screw threadedly connected with the shell. BRIEF DESCRIPTION OF DRAWINGS
[0016] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
[0017] Figure 1 It is an overall structural schematic diagram of the embodiment of the present application;
[0018] Figure 2 It is an internal structural schematic diagram of the main body and the shell in the embodiment of the present application;
[0019] Figure 3 It is an overall structural schematic diagram of the main body in the embodiment of the present application;
[0020] Figure 4 It is a distribution schematic diagram of the fixed channel in the embodiment of the present application;
[0021] Figure 5 It is a front side structural schematic diagram of the main body in the embodiment of the present application;
[0022] Figure 6 It is Figure 5 It is a cross-sectional structural schematic diagram of A-A in the embodiment of the present application.
[0023] 100, main body; 110, medicine cavity; 111, medicine liquid injection port; 120, containing cavity; 130, first screw; 140, support beam; 200, power pump; 210, shell; 220, driving motor; 230, pump cavity; 240, annular cam rotor; 241, convex part; 250, liquid outlet; 260, fixed channel; 700, adjustable valve; 710, switch; 720, electronic valve; 800, shell; 810, button; 820, display. DETAILED DESCRIPTION
[0024] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.
[0025] In the description of the utility model, it needs to be understood that, if the direction description, such as up, down, front, back, left, right and other directions or positional relationship indicated is based on the direction or positional relationship shown in the drawing, it is only for the convenience of describing the utility model and simplifying the description, and it does not indicate or imply that the device or element indicated must have a particular orientation, a particular orientation and operation, therefore it cannot be understood as a limitation of the utility model.
[0026] In the description of the utility model, several means one or more, the meaning of multiple is two or more, greater than, less than, more than and the like are understood as not including the number, above, below, within and the like are understood as including the number.If there is a description to the first, second is only used for distinguishing technical features for the purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.
[0027] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection and the like should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.
[0028] Refer to Figures 1-6 The column type analgesic pump device based on flow regulation system includes a main body 100 and a power pump 200.
[0029] Four independent medicine cavities 110 are arranged in the main body 100, three of which are arranged as sub-medicine cavities on the side wall of the fourth medicine cavity 110 as the main medicine cavity, and the total capacity of the three sub-medicine cavities is the same or almost the same as that of the main medicine cavity 110, for example, the capacity of the sub-medicine cavity is 50ml, and the capacity of the main medicine cavity is 150ml. This is because considering different use conditions, some specific liquid medicine dosage is large, which is used as the main medicine, and the remaining medicine is used as auxiliary, and the dosage is small. The top of the main body 100 is provided with a containing cavity 120. The containing cavity 120 is provided with a supporting beam 140 on both sides. The main body 100 is respectively provided with a liquid medicine injection inlet 111 corresponding to the four medicine cavities 110 respectively, so as to facilitate the addition of liquid medicine.
[0030] The power pump 200 comprises a shell 210 and a driving motor 220, the outer side of the shell 210 is provided with a motor support, and the driving motor 220 is stably installed on the outer side of the shell 210 through the motor support and a threaded nail. The inside of the shell 210 is provided with a pump cavity 230, the pump cavity 230 is rotatably installed with an annular cam rotor 240, and the outer side of the annular cam rotor 240 is uniformly provided with four convex portions 241. A transfusion hose is arranged in the pump cavity 230, the transfusion hose is between the outer side of the annular cam rotor 240 and the circumferential side wall of the pump cavity 230, and the convex portions 241 of the annular cam rotor 240 press against the transfusion hose. The output end of the driving motor 220 extends into the inside of the shell 210 and is in transmission connection with the rotation center of the annular cam rotor 240. The driving motor 220 can drive the annular cam rotor 240 to rotate in the pump cavity 230, and when the annular cam rotor 240 rotates, the four convex portions 241 press against the transfusion hose in turn, so that the liquid in the transfusion hose can be pumped out. The driving motor 220 can adopt a stepping motor.
[0031] One end of the transfusion hose is connected with a fixed channel 260, and a sealing ring is arranged between the transfusion hose and the fixed channel 260 to ensure the sealing property of the connection and prevent liquid leakage. The end of the transfusion hose away from the fixed channel 260 is a liquid outlet for pumped-out medicinal liquid. The bottom of the shell 210 can be embedded at the opening of the accommodating cavity 120, and the bottom of the shell 210 is pressed against the top of the supporting beam 140, thereby positioning and supporting the installation of the shell 210. First screws 130 are arranged at both sides of the top of the main body 100, the first screws 130 are screwed into both sides of the bottom of the shell 210, thereby stably assembling and connecting the shell 210 and the main body 100. The rational use and close connection of the space structure are realized.
[0032] It can be understood that a gap is further arranged between the bottom of the shell 210 and the inner bottom wall of the accommodating cavity 120, and the fixed channel 260 is arranged at the gap in the accommodating cavity 120. The number of the fixed channels 260 is the same as that of the medicine cavities 110, one end of each of the plurality of fixed channels 260 is communicated with each corresponding medicine cavity 110, and the other end of the plurality of fixed channels 260 is communicated with the transfusion hose after being gathered into a main pipe. An independent adjustable valve 700 is arranged in each fixed channel 260 connected with a medicine cavity, and a mechanical switch 710 is arranged on the adjustable valve 700, and the switch 710 is arranged on the outside of the main body 100. Therefore, the opening degree of the adjustable valve 700 can be adjusted by operating the switch 710 to adjust the flow of the medicinal liquid in the fixed channel 260. An electronic valve 720 is arranged in the fixed channel 260 connected with the main medicine cavity. When the patient needs, the doctor can control the opening and closing degree of the adjustable valve 700 according to the actual situation of the patient to achieve the purpose of personalized drug delivery.
[0033] It can be understood that the adjustable valve 700 has unidirectionality, and the drug solution between the drug chambers 110 cannot be communicated with each other to be contaminated. The adjustable valve 700 is also arranged at the gap in the accommodating cavity 120. In other embodiments, the inside of the main body 100 can also be provided with two, three or five drug chambers 110, and each drug chamber 110 can be provided with a required volume capacity according to actual needs.
[0034] The outside of the main body 100 and the shell 210 is further sleeved with an outer shell 800, and the rear side of the outer shell 800 is rotatably provided with an opening and closing door. By rotating to open the opening and closing door, the main body 100 and the shell 210 and the internal structure thereof can be conveniently inspected, repaired and the like. A second screw is provided on the opening and closing door, and the second screw can be screwed into the outer shell 800, so that the opening and closing door can be conveniently disassembled and fixed. The end of the infusion tube away from the fixed channel 260 penetrates the shell 210 and passes out of the main body 100 and the outer shell 800 to form a liquid outlet 250, so as to be connected with an infusion tube.
[0035] The inside of the outer shell 800 is further provided with an electric control system, and the electric control system includes a control chip, a display 820 and a buzzer. The control chip is electrically connected with the driving motor 220, the display 820, the buzzer and the electronic valve 720 respectively, and the opening and closing degree of the electronic valve can be independently adjusted by using the control chip. The front side of the outer shell 800 is further provided with a key 810. The key 810 can control the parameters of the control chip, so as to realize the control of the driving motor 220 and the display 820.
[0036] It can be understood that the electric control system includes driving modules of each power unit, each driving module is connected with the control chip in the form of a circuit, and each power module converts a low-power signal from the control chip into a high-power signal capable of operating the driving motor 220 and the electronic valve 720. The control chip also acquires the state of the driving motor 220 and the electronic valve 720 through each driving module, including but not limited to whether the driving motor 220 is started, the rotation direction of the driving motor 220 and the opening and closing state of the electronic valve 720.
[0037] A pressure sensor is installed in the interior of each medicine cavity 110. It can be understood that when the medicine in the medicine cavity 110 is pumped out, the pressure at the bottom of the medicine cavity 110 decreases, and thus the remaining amount of the medicine in the medicine cavity 110 can be reflected by the pressure detection of the pressure sensor. A flow sensor is installed in each fixed channel 260. The flow sensor can be used to detect the flow of the medicine flowing in the fixed channel 260. A timer is installed on the flow sensor. The timer can be used to record the time of the medicine flow, so that the use amount of the medicine can be known. The control chip is electrically connected with the pressure sensor, the flow sensor and the timer. After the control chip obtains the relevant information of the medicine remaining amount, the medicine flow and the infusion time, the information can be displayed on the display 820, so that the hospital staff can know the use of the medicine.
[0038] It can be understood that the power of the electronic components ultimately comes from the power supply unit. Some electronic components that require stable voltage can add a voltage stabilizing module between the power supply unit and the electronic components to provide stable voltage.
[0039] For example, the front side of the shell 800 is provided with seven keys 810, which are connected to the pins of the control chip. From bottom to top and from left to right, the first key is the "+" key, the second key is the "alarm emergency stop" key, the third key is the "-" key, the fourth key is the "on / off" key, the fifth key is the "run / pause" key, the sixth key is the "silence / add" key, and the seventh key is the "confirm" key.
[0040] Further, when the medical staff uses the device, a password needs to be input to use all the functions. When the password is input, the "+" and "-" keys can be used to select the numbers. After the "confirm" key is pressed, the next digit can be edited. After the complete password is input, the "confirm" key is pressed for more than 3 seconds, which is the confirmation of the password. When the device is used for the first time, the medical staff can directly input the initial password. In subsequent use, the password needs to be changed by providing the original password for modification.
[0041] Further, when the patient uses the device, only the second key and the sixth key are effective. When the alarm is not on, the patient presses the "alarm emergency stop" key for more than 3 seconds, the power pump 200 will stop working urgently, and the buzzer will alarm to remind the medical staff that an emergency needs to be handled. When the alarm is on, the patient cannot press the "silence / add" key. When the alarm is not on and the medicine is being added, the patient presses the "silence / add" key for more than 3 seconds, and the patient can add a medicine amount. The added medicine amount is the added amount set by the medical staff in advance, and the effective interval of the added medicine is set by the medical staff according to the patient's condition in advance.
[0042] Further specifically, the medical staff can switch the display between on and off by long pressing the "on / off" when using the device. After turning on the display, the password needs to be inputted to use all the functions. After inputting the password and pressing the "confirm" key, the medical staff can enter the interface for medical staff, which includes the total amount setting, the first amount setting, the continuous amount setting, the infusion amount setting, the infusion lock setting, the limit amount setting and the parameter display interface. The medical staff can select the corresponding panel to set and view the parameters.
[0043] Further specifically, the parameter setting range in the total amount setting panel is 0-400 ml. The "+" and "-" keys are pressed to adjust to the required parameter. The "confirm" key is pressed to confirm the total amount. Because the remaining amount of the drug, the total amount is designed to be less than the actual amount of the drug injected into the infusion bag, the total amount is displayed as the remaining amount. The parameter setting range in the first amount setting is 0-30 ml. The total amount setting is confirmed to enter the first amount setting. The "+" and "-" keys are pressed to adjust to the required parameter. The "confirm" key is pressed to confirm the first amount. The first amount is the priority infusion dose. The default infusion speed of the first amount is 50 ml / h. The parameter range of the continuous amount setting is 0, 1.0-50 ml / h. The meaning of setting "0" is that the continuous infusion function is not used, and only the self-controlled drug delivery function is used. The first amount setting is confirmed to enter the continuous amount setting. The "+" and "-" keys are pressed to adjust to the required parameter. The "confirm" key is pressed to confirm the continuous amount. In the running state of the device, the patient can self-control the drug delivery by pressing the effective "stop / make up" key. The dose of each drug delivery is the set infusion amount. The infusion amount mainly serves to meet the individual differences of the patient's demand for therapeutic drugs. The parameter setting range is 0, 1.0-9.9 ml / h. The meaning of 0 is to close the infusion function. The continuous amount setting is confirmed to enter the infusion amount setting. The "+" and "-" keys are pressed to adjust to the required parameter. The "confirm" key is pressed to confirm the infusion dose. The infusion lock setting is to set the shortest interval time between two infusion drugs. Within this time, the infusion pump only records the patient's re-administration instruction without running reaction. The infusion lock is set to avoid drug overdose. The parameter setting range is 1-99 min. The infusion amount setting is confirmed to enter the infusion lock setting. The "+" and "-" keys are pressed to adjust to the required parameter. The "confirm" key is pressed to confirm the lock time. The limit amount setting is the maximum dose infused within 1 h, which is a safety protection setting to ensure safe dose of drug. The determination should take into account the individual differences of the patient's required dose, the toxicity and side effects of the drug, and should be determined by the clinician after careful evaluation of the patient's pain and drug use. The parameter setting range is 1 ml / h-99 ml / h. The infusion lock setting is confirmed to enter the limit amount setting. The required parameter is adjusted. The "confirm" key is pressed to confirm the limit amount.
[0044] Further specifically, after each parameter is set, the panel enters a parameter display interface. The parameter display interface will calculate and display the total input amount, the input amount, the preset infusion speed, the number of injections, the remaining locking time, the limit amount parameter, the injection amount parameter, the actual infusion speed and the remaining power according to the characteristic parameters of each sensor and power unit obtained from the previous setting and control chip. The actual infusion speed is the speed parameter measured by the flow sensor. When the actual infusion speed is detected to be inconsistent with the preset infusion speed, the motor speed characteristic value will be automatically adjusted in real time according to the difference between the two, until the difference is within 1 ml / h. When the "stop / massage" key is pressed once, the number of injections is automatically added once, and the number of injections is recorded until the device is powered off and automatically reset.
[0045] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by ordinary skilled persons in the technical field without departing from the purpose of the utility model.
Claims
1. A column-type analgesic pump device based on a flow regulation system, characterized in that, include: The main body has at least two independent medicine cavities, each of which is connected to a medicine injection port on the outside of the main body, and the top of the main body has a receiving cavity. A power pump is installed in the main body. The output end of the power pump is the liquid outlet. Each medicine chamber is independently connected to the input end of the power pump through a fixed channel. An adjustable valve is installed in the fixed channel, and the adjustable valve is equipped with a switch for adjusting the opening degree, the switch being located outside the main body.
2. The column-type analgesic pump device based on a flow regulation system according to claim 1, characterized in that: The power pump includes a housing and a drive motor installed outside the housing. A pump chamber is formed inside the housing. An annular cam rotor is rotatably mounted on the side wall of the pump chamber. An infusion hose passes through the pump chamber. One end of the infusion hose is an outlet, and the other end is connected to the fixed channel. The annular cam rotor has multiple protrusions around its outer periphery that can abut against the infusion hose.
3. The column-type analgesic pump device based on a flow regulation system according to claim 2, characterized in that: The bottom of the housing is embedded in the opening of the receiving cavity, and the top two sides of the main body are provided with first screws that are threadedly connected to the housing.
4. The column-type analgesic pump device based on a flow regulation system according to claim 3, characterized in that: The cavity sidewall is fitted with a support beam for supporting the housing.
5. The column-type analgesic pump device based on a flow regulation system according to claim 2, characterized in that: A sealing ring is installed between the fixed channel and the infusion tubing.
6. The column-type analgesic pump device based on a flow regulation system according to claim 2, characterized in that: It also includes an electronic control system and a housing. The housing, the main body, and the electronic control system are all installed inside the housing. The electronic control system includes a control chip that is electrically connected to the drive motor. The housing is provided with multiple buttons for controlling the control chip.
7. The column-type analgesic pump device based on a flow regulation system according to claim 6, characterized in that: One of the adjustable valves is replaced with an electronic valve that is electrically connected to the electronic control system.
8. The column-type analgesic pump device based on a flow regulation system according to claim 6, characterized in that: The electronic control system also includes a display mounted on the outside of the housing and electrically connected to the control chip.
9. The column-type analgesic pump device based on a flow regulation system according to claim 8, characterized in that: Each of the aforementioned medicine chambers is equipped with a pressure sensor for detecting the remaining amount of medicine; each of the aforementioned fixed channels is equipped with a flow sensor for detecting the flow rate of medicine and a timer for recording the infusion time. The pressure sensor, the flow sensor, and the timer are all electrically connected to the control chip. The display can be used to display relevant information such as the remaining amount of medicine, the flow rate of medicine, and the infusion time.
10. A column-type analgesic pump device based on a flow regulation system according to claim 6, characterized in that: A hinged door is rotatably mounted on one side of the outer casing, and a second screw that is threadedly connected to the outer casing passes through the hinged door.