Electric drug pump and electric drug pump set

Abstract

The application provides an electric medicine pump and an electric medicine pump set. The electric medicine pump comprises a connecting end plate, a mounting skeleton, a pushing mechanism and a shell, the connecting end plate comprises a consumable connecting part, the pushing mechanism is mounted on the mounting skeleton, the mounting skeleton and the connecting end plate are sequentially arranged along a linear output direction of the pushing mechanism, and the shell is sleeved outside the mounting skeleton and connected with the connecting end plate through screws. A clamping groove extending along a second direction is arranged on the connecting end plate, a clamping part is arranged on the mounting skeleton, the second direction is perpendicular to the linear output direction, the clamping groove and the clamping part are slidably connected along the second direction and limitingly connected in the linear output direction, and the mounting skeleton and the connecting end plate are detachably connected. The electric medicine pump set comprises the above electric medicine pump and a medicine consumable. The application is easy to assemble, can ensure that the connecting end plate and the mounting skeleton are stably connected to resist the force formed by the pushing mechanism pushing the medicine consumable, is durable and can improve product quality.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically to an electric drug pump and an electric drug pump kit with an improved assembly structure. Background Technology

[0002] The existing electric drug pump includes a connecting end plate, a mounting frame, a push mechanism, a battery, a circuit board, a display screen, and a housing. The connecting end plate includes a consumable connection part located at the end of the electric drug pump and capable of being fastened and connected to the drug consumable. The push mechanism, battery, and circuit board are all fixedly mounted on the mounting frame. The display screen is fixed to the housing. The mounting frame and connecting end plate are fixedly connected together with screws. After the housing is fitted over the mounting frame, the two are fixed together with screws. The push mechanism includes a motor, a gear set, and a lead screw assembly that are sequentially driven. The lead screw and its front-end push component serve as the output end of the push mechanism. Driven by the motor, they can move linearly and push the piston of the drug consumable, thereby pumping out the drug.

[0003] In reality, the pushing mechanism is mounted on the mounting frame, and the medicine consumables pushed by the pushing mechanism are fastened to the connecting end plate. The connecting end plate and the mounting frame are connected by screws set along the straight output direction of the pushing mechanism. During the process of the pushing mechanism pushing the medicine consumables, the force that tends to separate the connecting end plate and the mounting frame along the above-mentioned straight output direction is applied to the screws at the connection between the connecting end plate and the mounting frame. After long-term use, loosening problems are likely to occur. Summary of the Invention

[0004] The primary objective of this invention is to provide an electric drug pump that is easy to assemble and ensures a stable connection between the connecting end plate and the mounting frame to cope with the force generated by the pushing mechanism pushing the drug consumables, while being durable and improving product quality.

[0005] The second objective of this invention is to provide an electric drug pump kit that is easy to assemble, more durable, and improves product quality.

[0006] The electric drug pump provided by the first objective of this invention includes a connecting end plate, a mounting frame, a pushing mechanism, and a housing. The connecting end plate includes a consumable connecting part. The pushing mechanism is mounted on the mounting frame. The mounting frame and the connecting end plate are arranged sequentially along the linear output direction of the pushing mechanism. The housing is fitted over the mounting frame and connected to the connecting end plate by screws. The connecting end plate is provided with a slot extending along a second direction. The mounting frame is provided with a locking part. The second direction is perpendicular to the linear output direction. The slot and the locking part slide together along the second direction and are locked together at the upper limit in the linear output direction. The mounting frame and the connecting end plate are detachably connected.

[0007] As can be seen from the above solution, the present invention improves the assembly method between the connecting end plate and the mounting frame. The two slide and connect in a second direction perpendicular to the linear output direction of the pushing mechanism, making the assembly operation simpler and easier. The slot and engaging part limit the fit along the linear output direction. During the pushing mechanism's movement of the drug consumables, the connecting end plate and the mounting frame rely on their own structural strength to withstand the force, effectively ensuring a stable connection even after long-term use. This makes the electric drug pump more durable and improves product quality. On the other hand, existing electric drug pumps mainly rely on screws to maintain the connection between the connecting end plate and the mounting frame. During assembly, the docking and positioning of the connecting end plate and the mounting frame is difficult. In the present invention, even if screws are needed to further ensure a stable connection, the added slot and engaging part provide excellent mutual positioning, facilitating screwing operations and improving assembly efficiency.

[0008] A further option is that the engaging portion includes a locking strip extending in a second direction.

[0009] As can be seen from the above, this setting not only further facilitates the sliding engagement between the slot and the strip along the second direction, but more importantly, the engagement part, as a force-bearing part, is set as a strip, which increases the engagement area and can effectively disperse the force, avoiding the problem of excessive local force.

[0010] A further solution is to install two locking strips on the frame that are positioned opposite each other along a third direction, and to install two locking slots on the connecting end plate that are positioned opposite each other along a third direction. The two locking strips and the two locking slots cooperate with each other, with the third direction being perpendicular to the linear output direction and perpendicular to the second direction.

[0011] As can be seen from the above, this setting can not only multiply the force-bearing area between the connecting end plate and the mounting frame, but also enable the connecting end plate and the mounting frame to form an effective relative fixation in the third direction.

[0012] A further option is to provide a limiting engagement part on the mounting frame, with the limiting engagement part and the engaging part arranged sequentially along the second direction; the limiting engagement part and the connecting end plate are limited and engaged along the second direction.

[0013] As can be seen from the above, under this setting, when the connecting end plate and the mounting frame are slidably assembled along the second direction, they are naturally stopped by the limiting mating part when they slide relative to each other to the assembly position, thus achieving a foolproof effect and reducing the assembly difficulty.

[0014] A further embodiment is that the housing includes a peripheral wall and an end wall; the peripheral wall surrounds the outer periphery of the mounting frame, and in the straight output direction, the end wall shields the mounting frame from the end opposite to the connecting end plate; the end wall is fixedly connected to the mounting frame.

[0015] A further embodiment is that the electric drug pump also includes a display module connected to the surface of the peripheral wall.

[0016] As can be seen from the above, existing drug pumps use screws to fix the outer shell to the connecting end plate. However, the outer shell is mostly made of molded plastic and has a certain degree of deformation capability. The outer shell is not directly connected to the mounting frame, causing it to loosen relative to the mounting frame. Since the exposed display is electrically connected to the circuit board on the mounting frame, this looseness may affect the stability of the connection between the display and the circuit board, impacting product quality and user experience. Therefore, this invention directly connects the outer shell to the mounting frame to reduce the loosening problem. Furthermore, since the battery, display, buttons, and connector modules are located between the mounting frame and the peripheral wall, choosing to fix the end wall to the mounting frame minimizes interference with the arrangement of other functional modules.

[0017] A further improvement is that the electric drug pump also includes a first screw, which passes through the end wall along the straight output direction and engages with the mounting skeleton threadedly.

[0018] A further option is that the electric drug pump also includes a second screw, which passes through the mounting frame along the straight output direction and engages with the threaded connection end plate.

[0019] As can be seen from the above, in this invention, even if screws are required to further ensure a stable connection, the added slots and engaging parts can provide a good mutual positioning effect, making it easier to screw in and improving assembly efficiency.

[0020] A further embodiment is that the electric drug pump also includes a circuit board and a battery; the circuit board and the battery are respectively fixed on opposite sides of the third direction of the mounting frame; the third direction is perpendicular to the linear output direction and perpendicular to the second direction, and the size of the electric drug pump in the third direction is smaller than the size of the electric drug pump in the second direction.

[0021] As can be seen from the above, the battery and circuit board are both relatively thin and large-area components. With this arrangement, the battery, mounting frame and circuit board are arranged side by side along the thickness direction of the drug pump, which makes the drug pump structure more compact and conducive to small-volume design.

[0022] The second objective of this invention is to provide an electric drug pump kit that includes an electric drug pump and drug consumables; the electric drug pump is the aforementioned electric drug pump; the drug consumables and the consumable connection part are detachably connected by a snap-fit ​​structure. Attached Figure Description

[0023] Figure 1 This is a structural diagram of an embodiment of the electric drug pump kit of the present invention.

[0024] Figure 2This is an exploded view of an embodiment of the electric drug pump kit of the present invention.

[0025] Figure 3 This is an exploded view of the first structure of an embodiment of the electric drug pump of the present invention.

[0026] Figure 4 This is an exploded view of the internal structure of an embodiment of the electric drug pump of the present invention.

[0027] Figure 5 This is a structural diagram of the internal structure of an embodiment of the electric drug pump of the present invention.

[0028] Figure 6 This is a structural diagram of the connecting end plate and mounting frame from a first-view perspective of an embodiment of the electric drug pump of the present invention.

[0029] Figure 7 This is a structural diagram of the connecting end plate and mounting frame from a second perspective in an embodiment of the electric drug pump of the present invention.

[0030] Figure 8 for Figure 4 Enlarged view of point A in the middle. Detailed Implementation

[0031] Electric drug pumps are mechatronic products. The circuit control of electric drug pumps is mainly through a single-chip microcomputer circuit control system with built-in program. The user sets the usage parameters through buttons on the pump and an LCD display. The program calculates and converts the infusion parameters into the number of pulses (revolutions) controlling the motor. After the motor runs through the reduction gear, the speed decreases and the torque increases. The drive screw converts the rotational motion of the gear into linear motion. At the same time, the push rod pushes the push rod of the drug reservoir forward, thereby allowing the liquid medicine to enter the human tissue through the catheter.

[0032] The electric drug pump's circuitry uses an MCU (Microcontroller Unit) as its brain, controlling peripheral devices to achieve infusion. The pump's LCD screen and buttons form a simple and effective interactive interface, allowing users to perform infusions at various rates simply by following the on-screen prompts. After receiving the user's input infusion volume and rate, the MCU calculates the infusion time and interval for each infusion. The electric drug pump effectively controls the overall infusion rate by controlling the infusion time and interval. Throughout the infusion process, the MCU recalculates the time for the next infusion after each infusion. This dynamic adjustment of the input rate significantly improves the infusion accuracy of the electric drug pump.

[0033] The DC motor's rotational speed decreases while its torque increases after passing through a precision gear reducer. The last gear in the gearbox drives the lead screw to rotate. The lead screw's rotary motion is converted into linear motion by the lead screw nut, which pushes the drug reservoir push rod forward. Finally, the drug in the reservoir enters the body through the infusion needle. During continuous infusion, a one-way valve infusion port is provided, allowing for the temporary addition of necessary medication without affecting the infusion process. The PCA (Automatic Drug Addition) function can be used via control keys and shortcut keys to ensure both convenience and safety. The PCA is an automatic drug addition function; a button on the electric drug pump is designated as the corresponding operation button, and pressing this button will administer additional medication according to the pre-set program.

[0034] Of course, in other embodiments, in addition to being able to control the electric drug pump through physical buttons or touch buttons on the pump body, the electric drug pump is also equipped with a wireless communication module, such as a Bluetooth module or a 2.4GHz module. The electric drug pump can wirelessly connect to terminal devices such as mobile phones or tablets through the wireless communication module, so that users can wirelessly control the electric drug pump through the terminal devices, thus achieving a user-friendly experience.

[0035] See Figure 1 and Figure 2 The electric drug pump kit of this embodiment includes an electric drug pump 91 and a drug consumable 92. One end of the electric drug pump 91 is provided with a connecting end plate 1, and the connecting end plate 1 is provided with a consumable mounting part 110. Two symmetrical buckles 111 are provided on the outer periphery of the consumable mounting part 110. The drug consumable 92 includes a syringe and a drug inside the syringe. Two symmetrically arranged and outwardly extending ears 921 are provided on the outer periphery of the syringe, so that the ears 921 and the buckles 111 are offset in the circumferential direction and the electric drug pump 91 and the drug consumable 92 are connected in the z-axis direction. When the ears 921 reach the side of the buckles 111, rotating the drug consumable 92 can make the ears 921 engage in the locking groove 1110 of the buckles 111. The buckles 111 can prevent the ears 921 from disengaging in the z-axis direction. In addition, the lug 921 is provided with a locking recess 9211, and the locking groove 1110 is provided with a locking protrusion (not shown in the figure). The locking recess 9211 and the locking protrusion engage to make the buckle 111 and the lug 921 more securely fastened, further preventing loosening. In addition, on the connecting end plate 1, on the end face where the root of the buckle 111 is located, there is also a detection switch 1119 in the z-axis direction corresponding to the lug 921. When the lug 921 is in the accurate position of being fastened with the buckle 111, the detection switch 1119 is triggered. The control system of the electric drug pump 91 can obtain the detection signal of the detection switch 1119 and determine whether the drug consumable 92 is accurately installed.

[0036] The electric drug pump 91 in this embodiment is a single-head pump, see [link]. Figure 3 and Figure 4 The electric drug pump includes a connecting end plate 1, a housing 2, a mounting frame 3, a pushing mechanism 4, a circuit board 51, a battery 52, a display module 53, and a button and interface module 54. In the rectangular coordinate system shown in the figure, the z-axis direction is the linear output direction of the pushing mechanism 4 of the present invention, the x-axis direction is the second direction of the present invention, the y-axis direction is the third direction of the present invention, and the z-axis direction is the length direction of the electric drug pump, the y-axis direction is the thickness direction of the electric drug pump, and the x-axis direction is the width direction of the electric drug pump. The thickness dimension of the electric drug pump in the y-axis direction is smaller than its width dimension in the x-axis direction and its length dimension in the z-axis direction.

[0037] See Figure 3 and Figure 4 The circuit board 51, battery 52, and button and interface module 54 are all fixedly mounted on the mounting frame 3. The display module 53 is mounted on the housing 2. The mounting frame 3 and the connecting end plate 1 are arranged sequentially along the z-axis. After the mounting frame 3 and the connecting end plate 1 are fixedly connected, the housing 2 is fitted over the mounting frame 3 and the two are fixedly connected, thereby assembling the electric drug pump of the present invention.

[0038] Among them, see Figure 4 and Figure 5 The pushing mechanism 4 includes a motor 41, a gear set 42, a lead screw assembly 43, and a pushing member 49. The motor 41 is fixedly mounted in the mounting frame 3, and its output shaft is arranged along the z-axis. In the z-axis direction, the mounting frame 3 has an end 309 facing away from the connecting end plate 1. The output shaft of the motor 41 is located at and exposed above this end 309. The gear set 42 is also located at this end 309. The driving gear of the gear set 42 rotates coaxially with the output shaft of the motor 41, and the driven gear of the gear set 42 rotates coaxially with the lead screw of the lead screw assembly 43. The lead screw nut of the lead screw assembly 43 is fixedly connected to the pushing member 49. The pushing member 49 is sleeve-shaped and fitted around the outer circumference of the lead screw, with its end passing through the consumable connection portion 110 along the z-axis and extending beyond the connecting end plate 1. After the motor 41 starts, it can drive the pushing member 49 to move along the z-axis and push the piston inside the engaged drug consumable 92, thereby pumping the drug. See also... Figure 4 The pushing mechanism 4 is installed inside the mounting frame 3. The circuit board 51 and the battery 52 are respectively fixed on opposite sides in the y-axis direction of the mounting frame 3. The pushing mechanism 4 and the button and interface module 54 are located between the circuit board 51 and the battery 52.

[0039] The outer casing 2 includes a peripheral wall 21 and an end wall 22. The peripheral wall 21 surrounds the outer periphery of the mounting frame 3. In the z-axis direction, the end wall 22 shields the mounting frame 3 from the end opposite to the connecting end plate 1. A first through hole 220 is provided on the end wall 22, and a first screw hole 390 is provided on the end 309 of the mounting frame 3. The electric drug pump 91 also includes a first screw (not shown in the figure). After the outer casing 2 is fitted onto the mounting frame 3, the first screw hole 390 communicates with the first through hole 220. The first screw passes through the first through hole 220 and engages with the first screw hole 390 to complete the fixed connection between the outer casing 2 and the mounting frame 3. The peripheral wall 21 is provided with a mounting through hole 210. After the display module 53 is installed on the surface of the peripheral wall 21, the display module 53 can achieve electrical connection with the circuit board 51 through the mounting through hole 210.

[0040] In this invention, since the gear set 42 is exposed at end 309 and the end 309 is readily accessible and easily visible after the outer casing 2 is removed, this design makes it convenient for medical personnel or users to replace damaged gear sets 42 or replace gear sets 42 with different transmission ratios. In contrast, conventional drug pumps place the gear set between the connecting end plate and the mounting frame, requiring the sequential removal of the outer casing and connecting end plate before the gear set can be disassembled and replaced, making disassembly and assembly difficult. The gear set 42 of this invention is easy to disassemble and replace, making the electric drug pump easy to maintain and readily adjustable to meet different pumping flow rate requirements.

[0041] This invention primarily improves the connection method between the connecting end plate 1 and the mounting frame 3, thereby changing the assembly method of the electric drug pump. See also... Figure 4 , Figure 6 , Figure 7 and Figure 8 In the z-axis direction, the mounting frame 3 has a retaining strip 31 on each of its opposite sides in the y-axis direction near the end of the connecting end plate 1. The retaining strip 31 is the engaging part of this invention, extending along the x-axis between the opposite ends of the mounting frame 3. The two retaining strips 31 protrude from the main body of the mounting frame 3 in opposite directions along the y-axis. See also... Figure 8 The mounting frame 3 is provided with a limiting engagement part 32. The limiting engagement part 32 and the engaging part are arranged sequentially along the x-axis direction. In the x-axis direction, the mounting frame 3 is provided with a limiting engagement part 32 at only one end. The limiting engagement part 32 is a protrusion that protrudes from the locking strip 31.

[0042] In the z-axis direction, the connecting end plate 1 has two L-shaped protrusions 12 on the side near the mounting frame 3. The protrusions 12 extend along the x-axis between opposite sides of the connecting end plate 1. Each protrusion 12 includes an upright portion 121 protruding from the end face 100 of the connecting end plate 1 along the z-axis direction and a bent portion 122 extending from the protruding end of the upright portion 121 away from the end face 100 along the y-axis direction. The upright portion 121 and the bent portion 122 are bent and connected to form an L-shape, and both the upright portion 121 and the bent portion 122 extend along the x-axis direction. The two protrusions 12 are symmetrically arranged, and the two bent portions 122 bend and extend in opposite directions along the y-axis direction. A groove 120 is formed between the bent portion 122 of each protrusion 12 and the end face 100. An inverted "T"-shaped engagement position is formed between the two protrusions 12, which includes two grooves 120 with opposite openings. In this configuration, when installing the connecting end plate 1 and the mounting frame 3, it is only necessary to move the mounting frame 3 relative to the connecting end plate 1 along the x-axis and slide the two retaining strips 31 into the two retaining slots 120 respectively. When the assembly position is reached, the limiting engagement part 32 naturally abuts against the end of the bent part 122, limiting the engagement along the x-axis and preventing further advancement. In addition, to improve the connection stability, the mounting frame 3 is provided with a second through hole 330, the connecting end plate 1 is provided with a second screw hole 130, and the electric drug pump also includes a second screw, which passes through the second through hole 330 and engages with the second screw hole 130.

[0043] This invention improves the assembly method between the connecting end plate 1 and the mounting frame 3, allowing for sliding docking along the x-axis, making assembly simpler and easier. More importantly, the retaining strip 31 and the bending portion 122 then mutually restrict each other along the z-axis. Both the retaining strip 31 and the bending portion 122 are elongated, resulting in a large contact area and a wide dispersion of the contact surfaces. With this configuration, during the process of the pushing mechanism 4 pushing the drug consumable 92, the connecting end plate 1 and the mounting frame 3 can effectively withstand the forces that tend to separate them, relying on their own structural strength. Even with long-term use, this effectively ensures a stable connection between the connecting end plate 1 and the mounting frame 3, making the electric drug pump 91 more durable and improving product quality.

[0044] Existing commercially available electronic analgesic pumps all use a peristaltic squeezing method for infusion. This method suffers from unstable infusion accuracy, frequent leaks and tube breaks, high product costs, and low production efficiency. The electric drug pump and its infusion components developed in this invention are superior to other electric drug pumps on the market, not only in terms of chip materials but also in technology. Utilizing a DC motor to directly drive the piston as the power source brings significant innovation to the market. The electric drug pump is manufactured by a leading domestic mold factory, resulting in an aesthetically pleasing, compact, flexible, and portable pump that is reliable. Regarding the software, this invention pioneers a real-time operating system to improve the overall response performance of the electric drug pump system, greatly enhancing injection accuracy and reliability. Most electric drug pumps on the market still use bare-metal systems, which have obvious drawbacks: limited responsiveness and limited functionality. This invention employs a high-performance microcontroller chip; only a powerful chip can support a powerful operating system to unleash its full potential.

[0045] The machine casing is made of medical-grade PC material. PC material is strong and resistant to UV rays, oxidation, and chemical corrosion. It also boasts excellent electrical insulation properties and a low dielectric constant. PC is easy to process and mold, suitable for mass production, and possesses excellent impact toughness, able to withstand various impacts and vibrations. Combining the advantages of both materials, PC offers superior mechanical properties, high-temperature performance, weather resistance, and transparency, while also exhibiting good processing and insulation properties. This makes our machines aesthetically pleasing, robust, durable, and reliable.

[0046] In the electric drug pump of this invention, the system adopts RT-Thread, a mainstream domestic IoT operating system. Besides a real-time kernel, RT-Thread includes relatively complete middleware components such as file systems and graphics libraries, making it a software platform with low power consumption, security, communication protocol support, and cloud connectivity capabilities. This real-time kernel provides multi-threading, implementing thread scheduling for response task threads, ADC task threads, graphical user interface task threads, and button task threads, including thread synchronization and mutual exclusion, and thread communication. Multi-threaded operation makes the electric drug pump's machine response speed faster than other electric drug pumps on the market, and the user interface is more user-friendly. At the same time, the low-power mode greatly improves the single-use time of the electric drug pump.

[0047] The driving mechanism 4 includes a motor 41, a gear set 42, a lead screw assembly 43, and a pusher 49, which improves transmission efficiency. The reduction device depends on the number of gear meshing stages in the gearbox. When a small gear drives a large gear for reduction, it is called a single-stage reducer. When single-stage reduction cannot meet the requirements, multi-stage gear meshing transmission is needed to complete the reduction transmission requirement. In other embodiments, two or three sets are needed to meet the user's requirement for a larger transmission ratio. Due to the increased number of planetary gears, the length of a two-stage or three-stage reducer will increase, and the efficiency will decrease. The number of stages in a reducer is usually single-stage, double-stage, or three-stage, but some with large reduction ratios can reach four stages. The larger the number of stages, the lower the reduction transmission efficiency. Electric drug pumps can also use multi-stage gearboxes, which have a large reduction ratio while meeting the requirements of low noise, high efficiency, and wear resistance.

[0048] Finally, it should be emphasized that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An electric drug pump, comprising a connecting end plate, a mounting frame, a pushing mechanism, and a housing, wherein the connecting end plate includes a consumable connection portion, the pushing mechanism is mounted on the mounting frame, the mounting frame and the connecting end plate are arranged sequentially along the linear output direction of the pushing mechanism, and the housing is fitted over the mounting frame; Its features are: The connecting end plate is provided with a slot extending along the second direction, and the mounting frame is provided with a locking part. The second direction is perpendicular to the linear output direction. The slot and the locking part slide in the second direction and are locked in the upper limit in the linear output direction. The mounting frame and the connecting end plate are detachably connected. The engaging portion includes a locking strip extending along the second direction; The mounting frame is provided with two locking strips arranged opposite each other along a third direction, and the connecting end plate is provided with two locking slots arranged opposite each other along the third direction. The two locking strips and the two locking slots respectively cooperate with each other. The third direction is perpendicular to the straight output direction and perpendicular to the second direction. The mounting frame is provided with a limiting engagement part, and the limiting engagement part and the engaging part are arranged sequentially along the second direction; the limiting engagement part and the connecting end plate are limited and engaged along the second direction; The connecting end plate has two L-shaped protrusions on one side near the mounting frame. The protrusions extend along the second direction between the opposite sides of the connecting end plate. The protrusions include an upright part and a bent part that are bent into an L shape. Each bent part forms a groove with the end face of the connecting end plate. During the installation between the connecting end plate and the mounting frame, the mounting frame is moved relative to the connecting end plate along the second direction and the two locking strips slide into the two locking slots respectively. When the assembly position is reached, the limiting engagement part naturally abuts against the end of the bending part and limits the movement along the second direction to prevent further advancement. The locking strips and the bending part form a mutual restriction on the straight output direction.

2. The electric drug pump according to claim 1, characterized in that: The outer casing includes a peripheral wall and an end wall; The peripheral wall surrounds the outer periphery of the mounting frame, and in the straight output direction, the end wall blocks the mounting frame from the end opposite to the connecting end plate. The end wall is fixedly connected to the mounting frame.

3. The electric drug pump according to claim 2, characterized in that: The electric drug pump also includes a first screw, which passes through the end wall along the straight output direction and engages with the mounting skeleton via a thread.

4. The electric drug pump according to claim 2, characterized in that: The electric drug pump also includes a display module connected to the surface of the peripheral wall.

5. The electric drug pump according to claim 1, characterized in that: The electric drug pump also includes a second screw, which passes through the mounting frame along the straight output direction and engages with the threaded connection end plate.

6. The electric drug pump according to claim 1, characterized in that: The electric drug pump also includes a circuit board and a battery; The circuit board and the battery are respectively fixed on opposite sides of the mounting frame in a third-direction orientation; The third direction is perpendicular to the straight output direction and perpendicular to the second direction, and the dimension of the electric drug pump in the third direction is smaller than the dimension of the electric drug pump in the second direction.

7. Electric medication pump kit, including electric medication pump and medication consumables; Its features are: The electric drug pump is the electric drug pump described in any one of claims 1 to 6; The drug consumable and the consumable connection part are detachably connected by a snap-lock structure.

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