An infusion pump and infusion device

Abstract

The application discloses an infusion pump and an infusion device, wherein the infusion pump comprises a pump body and a pump door, the pump door is in openable and closable connection with the pump body, the pump body is provided with a pump door opening and closing device, the pump door opening and closing device comprises a driving device, a rotating rod, a controller and a position switch, the rotating rod is connected with the driving device, the rotating rod is provided with a switch piece and a buckling piece, the controller is in signal connection with the driving device, and the position switch is in signal connection with the controller. The driving device is used for driving the rotating rod to rotate, so that the buckling piece buckles the pump door and the switch piece matches the position switch. According to the technical scheme, the controller is used for controlling the driving device to drive the rotating rod to rotate, the buckling piece which rotates along with the rotating rod buckles the pump door to realize the opening and closing of the pump door, the position of the position switch matched with the switch piece is adjusted, and then the control precision of the opening and closing angle of the pump door is realized. The application has reliable structure, effectively improves the control precision of the opening and closing of the pump door and improves the practicability of the infusion pump.

Description

Technical Field

[0001] This invention relates to the field of medical equipment technology, and in particular to an infusion pump and an infusion device. Background Technology

[0002] With the development of science and technology, infusion pumps are often used in clinical treatment to control the infusion rate in order to achieve better treatment results based on factors such as drug properties and patient constitution.

[0003] Most existing infusion pumps are equipped with a pump door switch to control the opening and closing of the pump door. However, in most existing infusion pumps, the pump door switch uses a motor to directly drive a hook connected to the pump door to achieve the opening and closing function. This can easily lead to uneven force on the pump door, affecting the function of the pressure block and resulting in low structural reliability. Furthermore, most existing pump door switch devices use a position detection switch to detect whether the pump door is fully open or closed, thereby controlling the motor start and stop. The detection accuracy is not high, and existing position detection switches are usually fixed in position, so the opening and closing angle of the pump door cannot be adjusted, and control deviations are prone to occur, resulting in low control accuracy of the pump door opening and closing.

[0004] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is prior art. Summary of the Invention

[0005] The main objective of this invention is to provide an infusion pump that improves the structural reliability of the pump door opening and closing device, thereby enhancing the accuracy and stability of the pump door control.

[0006] To achieve the above objectives, the present invention provides an infusion pump comprising a pump body and a pump door, wherein the pump door is closable to the pump body. The pump body is provided with a pump door switching device, which includes a drive device, a rotating rod, a controller, and a position switch. The rotating rod is connected to the drive device and is provided with a switching element and a fastening element; the controller is signal-connected to the drive device; the position switch is signal-connected to the controller. The drive device is used to drive the rotating rod to rotate, so that the fastening element engages the pump door and the switching element matches the position switch.

[0007] Optionally, the controller includes a control circuit board, a sensing element, and an electronic control element. The control circuit board is connected to the pump body and is signal-connected to the drive device. The sensing element is electrically connected to the control circuit board and is positioned facing the pump door. The electronic control element is electrically connected to the control circuit board.

[0008] Optionally, the position switch includes a first switch and a second switch, both of which are electrically connected to the control circuit board. The switching element reciprocates between the first switch and the second switch and is matched with either the first switch or the second switch.

[0009] Optionally, the pump body includes a connecting body and a main plate, with the control circuit board and the drive device both connected to the connecting body; the main plate is connected to the connecting body, and the main plate is closable to the pump door, with the sensing element located near the surface of the main plate away from the pump door. The rotating rod is connected to the main plate, and the fastening member is positioned facing the pump door.

[0010] Optionally, the surface of the main body plate facing the pump door is provided with a receiving groove, and the surface of the pump door is provided with a pressure pipe block, the receiving groove fitting the pressure pipe block. And / or, the fastening member is provided with a sliding groove, and the surface of the pump door near the main body plate is provided with a latch, the latch being slidably connected to the sliding groove, so that the fastening member fastens the pump door.

[0011] Optionally, the surface of the main body plate is recessed with a fixing groove, the opening of which faces the pump door. The rotating rod includes a rotating rod body, which is connected to the surface of the main body plate opposite to the pump door. One end of the rotating rod body passes through the fixing groove, and the fastener is connected to the end of the rotating rod body and located within the fixing groove.

[0012] Optionally, the surface of the main body plate is recessed with two fixing grooves, and both ends of the rotating rod body pass through the two fixing grooves respectively. The rotating rod is provided with two fastening members, which are respectively connected to both ends of the rotating rod body and are located in the two fixing grooves respectively.

[0013] Optionally, the rotating rod is further fitted with a sealing ring, which is located between the rotating rod body and the fixing groove.

[0014] Optionally, the driving device includes a driving source and a transmission wheel. The driving source is connected to the connecting body and has a driving wheel. The transmission wheel is connected to the connecting body and includes an integrally connected transmission section and a reduction section. The transmission section is connected to the driving wheel. The rotating rod body has a driven wheel, which is connected to the reduction section.

[0015] The present invention also includes an infusion device, the infusion device comprising an infusion pump and a device body, the infusion pump being connected to the device body, and the infusion pump being the infusion pump described above.

[0016] This invention provides a pump door opening and closing device installed on the pump body of an infusion pump. This device includes a drive unit, a rotating rod, a controller, and a position switch. The rotating rod is connected to the drive unit and includes a switch and a latching element. The controller is signal-connected to the drive unit, and the position switch is signal-connected to the controller. The drive unit drives the rotating rod to rotate, causing the latching element to engage the pump door and aligning the switch with the position switch. This invention achieves control over the opening and closing of the pump door through the pump door opening and closing device installed within the pump body. When the pump door closes the pump body, the controller of the pump door opening and closing device senses the approach of the pump door and then controls the drive unit to start, causing the drive unit to rotate the rotating rod, which in turn rotates the latching element to engage the pump door. Simultaneously, the switch also rotates with the rotating rod. By pre-adjusting the position of the position switch, when the latching element engages the pump door, causing the pump door to close the pump body, the switch rotates to a position matching the position switch, triggering the position switch to send a signal to the controller. The controller then controls the drive unit to stop, thus completing the pump door closing action. When the pump door needs to be opened, the controller activates the drive unit, which in turn rotates the lever, causing the latching mechanism to disengage from the pump door. By pre-adjusting the position switch, when the latching mechanism disengages from the pump door, the switch rotates to a position matching the position switch, triggering the position switch to send a signal to the controller. The controller then stops the drive unit, completing the pump door opening action. The required opening angle of the pump door can be adjusted as needed by changing the position switch.

[0017] The rotating rod effectively reduces the force of the drive unit, preventing excessive stress on the connection between the pump door and the fastener during opening and closing, which could affect the opening and closing effect of the pump door and cause the pressure block to shift, thus improving the structural reliability of the pump door opening and closing device. Simultaneously, by adjusting the position switch, when the rotating rod rotates through a certain angle, the switch and position switch match, thereby controlling the drive unit to stop. This achieves the function of adjusting the pump door opening and closing angle, effectively improving the control accuracy of the pump door opening and closing, allowing users to adjust the opening and closing angle of the pump door as needed, and enhancing the practicality of the infusion pump. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional schematic diagram of an embodiment of the infusion pump of the present invention;

[0020] Figure 2 for Figure 1 A three-dimensional schematic diagram of the pump body of an embodiment of an infusion pump;

[0021] Figure 3 for Figure 2 A top view of an embodiment of the pump body;

[0022] Figure 4 for Figure 3 Cross-sectional view at point AA;

[0023] Figure 5 for Figure 1 A three-dimensional schematic diagram of the pump body without the main body plate of an embodiment of an infusion pump;

[0024] Figure 6 for Figure 5 Right view of an embodiment of an infusion pump;

[0025] Figure 7 for Figure 6 A right view of the fastening element fastening the pump door in an embodiment of an infusion pump;

[0026] Figure 8 for Figure 1 A three-dimensional schematic diagram of a pump door switch device according to an embodiment of an infusion pump;

[0027] Figure 9 for Figure 8 Right view of the controller of an embodiment of the pump door switching device;

[0028] Figure 10 for Figure 1 A three-dimensional schematic diagram of the pump gate of an embodiment of an infusion pump.

[0029] Explanation of icon numbers:

[0030] label name label name 100 Infusion pump 153 Drive wheel 10 Pump door opening and closing device 1531 Transmission section 11 controller 1533 Deceleration section 111 control circuit board 17 position switch 113 Sensing element 171 First switch 115 Electronic control components 173 Second switch 13 Rotary lever 30 Pump body 131 Switching components 31 Main board 133 Fasteners 311 Container slot 1331 chute 313 Fixed groove 135 sealing ring 3131 Trough side plate 137 Driven wheel 33 Connector 139 Rotating rod body 50 Pump door 15 drive unit 51 Pressure pipe block 151 Driver source 53 Bolt 1511 drive wheel

[0031] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0033] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0034] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0035] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the word "and / or" throughout the text means including three parallel solutions; taking "A and / or B" as an example, it includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0036] Most existing infusion pumps 100 are equipped with a pump door switch device 10 to control the opening and closing of the pump door 50. However, in most existing infusion pumps 100, the pump door switch device 10 uses a motor to directly drive a hook connected to the pump door 50 to achieve the opening and closing function of the pump door 50. This can easily lead to uneven force on the pump door 50, affecting the function of the pressure block 51, resulting in low structural reliability. Furthermore, most existing pump door switch devices 10 use a position detection switch to detect whether the pump door 50 is fully open or closed, thereby controlling the motor to start and stop. The detection accuracy is not high, and existing position detection switches are usually fixed in position, so the opening and closing angle of the pump door 50 cannot be adjusted, and control deviations are prone to occur, resulting in low control accuracy of the opening and closing of the pump door 50. To address the above problems, this invention proposes an infusion pump 100.

[0037] Reference Figures 1 to 10In this embodiment of the invention, the infusion pump 100 includes a pump body 30 and a pump door 50. The pump door 50 is closable and connectable to the pump body 30. The pump body 30 is provided with a pump door switch device 10, which includes a drive device 15, a rotating rod 13, a controller 11, and a position switch 17. The rotating rod 13 is connected to the drive device 15 and is provided with a switch element 131 and a fastening element 133. The controller 11 is signal-connected to the drive device 15, and the position switch 17 is signal-connected to the controller 11. The drive device 15 drives the rotating rod 13 to rotate, so that the fastening element 133 fastens the pump door 50 and the switch element 131 matches the position switch 17.

[0038] The present invention provides a pump door switch device 10 installed on the pump body 30 of an infusion pump 100. This pump door switch device 10 includes a drive device 15, a rotating rod 13, a controller 11, and a position switch 17. The rotating rod 13 is connected to the drive device 15 and includes a switch element 131 and a fastening element 133. The controller 11 is signal-connected to the drive device 15, and the position switch 17 is signal-connected to the controller 11. The drive device 15 drives the rotating rod 13 to rotate, causing the fastening element 133 to engage the pump door 50, and matching the switch element 131 with the position switch 17. The present invention achieves control over the opening and closing of the pump door 50 through the pump door switch device 10 installed within the pump body 30. When the pump door 50 closes the pump body 30, the controller 11 of the pump door switch device 10 senses the approach of the pump door 50 and then controls the drive device 15 to start, causing the drive device 15 to drive the rotating rod 13 to rotate, which in turn drives the fastening element 133 to rotate, thereby engaging the pump door 50. Simultaneously, the switch 131 rotates along with the rotating rod 13. By pre-adjusting the position of the position switch 17, when the fastening element 133 engages the pump door 50, causing the pump door 50 to close the pump body 30, the switch 131 will rotate to a position matching the position switch 17. This triggers the position switch 17 to send a signal to the controller 11, which then controls the drive device 15 to stop, thus completing the closing action of the pump door 50. When the pump door 50 needs to be opened, the controller 11 starts the drive device 15, causing the drive device 15 to drive the rotating rod 13 to rotate, causing the fastening element 133 to release the connection of the pump door 50. By pre-adjusting the position of the position switch 17, when the fastening element 133 releases the connection with the pump door 50, the switch 131 will rotate to a position matching the position switch 17. This triggers the position switch 17 to send a signal to the controller 11, which then controls the drive device 15 to stop, completing the opening action of the pump door 50. The angle at which the pump door 50 needs to be opened and closed can be adjusted by changing the position of the position switch 17 as needed.

[0039] Under the action of the rotating rod 13, the force of the drive device 15 can be effectively reduced, preventing excessive force at the connection between the pump door 50 and the fastening member 133 during the opening and closing process, which would affect the opening and closing effect of the pump door 50 and cause the pressure block 51 to shift, thus improving the structural reliability of the pump door opening and closing device 10. At the same time, by adjusting the position of the position switch 17, when the rotating rod 13 rotates through a certain angle, the switch member 131 matches the position switch 17, thereby controlling the drive device 15 to stop, thus achieving the function of adjusting the opening and closing angle of the pump door 50, effectively improving the control accuracy of the opening and closing of the pump door 50, allowing the user to adjust the opening and closing angle of the pump door 50 as needed, and improving the practicality of the infusion pump 100.

[0040] Reference Figure 3 , Figure 5 , Figure 8 and Figure 9 In one embodiment of the present invention, the controller 11 includes a control circuit board 111, a sensing element 113, and an electronic control element 115. The control circuit board 111 is connected to the pump body 30 and is signal-connected to the drive device 15. The sensing element 113 is electrically connected to the control circuit board 111 and is disposed facing the pump door 50. The electronic control element 115 is electrically connected to the control circuit board 111.

[0041] In this embodiment, the controller 11 sets the control circuit board 111 on the pump body 30, and then electrically connects the sensing element 113 and the electronic control element 115 to the control circuit board 111, thereby controlling the drive device 15 through the sensing element 113 and the electronic control element 115.

[0042] The sensing element 113 is used to detect the proximity of the pump door 50 to the pump body 30 and control the start of the drive device 15. Therefore, the sensing element 113 needs to be placed close to the pump door 50. The sensing element 113 can be a sensor element, such as a Hall sensor. By setting a magnetic element on the pump door 50, when the pump door 50 approaches the pump body 30, the magnetic element on the pump door 50 will trigger the Hall sensor, thereby feeding back to control the start of the drive device 15. Alternatively, the sensing element 113 can also be a photosensitive sensor. By setting a corresponding device on the pump door 50, a process of converting light signals into electrical signals can occur when the pump door 50 approaches the pump body 30, thereby feeding back to control the start of the drive device 15. In addition to the element used to sense the pump door 50, other position sensing elements can also achieve the above functions, and no further limitations are made here.

[0043] The electronic control element 115 is used to control the start of the drive unit 15 when the pump door 50 needs to be opened. The electronic control element 115 can be electrically connected to a control switch provided on the infusion pump 100. When the pump door 50 needs to be opened, the user triggers the control switch, thereby causing the electronic control element 115 to control the opening of the pump door 50. Alternatively, the electronic control element 115 can be a signal receiver, which receives signals from the user, thereby causing the electronic control element 115 to control the opening of the pump door 50.

[0044] Furthermore, referring to Figure 5 , Figure 6 , Figure 7 and Figure 9 In one embodiment of the present invention, the position switch 17 includes a first switch 171 and a second switch 173, both of which are electrically connected to the control circuit board 111. The switching element 131 reciprocates between the first switch 171 and the second switch 173 and is matched with either the first switch 171 or the second switch 173.

[0045] In this embodiment, the position switch 17 includes a first switch 171 and a second switch 173. The first switch 171 and the second switch 173 are electrically connected to the control circuit board 111. When the pump door switch device 10 is installed, the switching element 131 of the rotating rod 13 is positioned close to the position switch 17, so that when the rotating rod 13 rotates, the switching element 131 can reciprocate between the first switch 171 and the second switch 173, and match either the first switch 171 or the second switch 173. Since the position switch 17 is used to transmit a stop signal to the controller 11, the controller 11 controls the drive device 15 to stop. Therefore, the first switch 171 can be used as a limit switch when the pump door 50 is open, and the second switch 173 can be used as a limit switch when the pump door 50 is closed. When the pump door 50 is open, the switch element 131 rotates with the rotating rod 13 to the position of the first switch 171 and matches with the first switch 171, triggering the first switch 171 to transmit a signal to the controller 11, so that the rotating rod 13 can feed back to control the drive device 15 to stop, completing the opening action of the pump door 50. When the pump door 50 is closed, the switch element 131 will rotate with the rotating rod 13, thereby moving to the position of the second switch 173 and matching with the second switch 173, triggering the second switch 173 to transmit a signal to the controller 11, so that the rotating rod 13 can feed back to control the drive device 15 to stop, completing the closing action of the pump door 50. Therefore, by adjusting the positions of the first switch 171 and the second switch 173, or by adjusting the positions of the first switch 171 and the second switch 173 respectively matched with the switch component 131, the opening and closing angle of the pump door 50 during the opening and closing process can be controlled, thereby improving the control accuracy and enabling the infusion pump 100 to perform more functions.

[0046] In this configuration, the first switch 171 and the second switch 173 can be optocoupler detection switches, with the switch element 131 configured as a light-blocking plate. When the switch element 131 matches the first switch 171 or the second switch 173, the light-blocking plate triggers the optocoupler detection switch, causing the position switch 17 to send a signal to the controller 11. By adjusting the position of the optical path within the optocoupler detection switch, the position switch 17 can be adjusted, achieving the function of adjustable opening and closing angle of the pump door 50. Alternatively, the first switch 171 and the second switch 173 can also be limit switches. When the switch element 131 moves to the first switch 171 or the second switch 173, it abuts against the limit switch, thereby triggering the position switch 17 to send a signal to the controller 11. By adjusting the contact position of the limit switch, the position switch 17 can be adjusted, achieving the function of adjustable opening and closing angle of the pump door 50. Furthermore, the position switch 17 can also use other adjustable stroke control elements to achieve the function of adjustable opening and closing angle of the pump door 50, without further limitations.

[0047] Furthermore, referring to Figures 1 to 3 In one embodiment of the present invention, the pump body 30 includes a connecting body 33 and a main plate 31. The control circuit board 111 and the drive device 15 are both connected to the connecting body 33. The main plate 31 is connected to the connecting body 33 and is closablely connected to the pump door 50. The sensing element 113 is located near the surface of the main plate 31 facing away from the pump door 50. The rotating rod 13 is connected to the main plate 31, and the fastening member 133 is positioned facing the pump door 50.

[0048] In this embodiment, the pump body 30 includes a connector 33 and a main plate 31. The main plate 31 is connected to the connector 33, and the function of the infusion pump 100 is realized by the opening and closing connection between the main plate 31 and the pump door 50. By connecting the control circuit board 111 and the drive device 15 to the connector 33, the signal from the controller 11 is quickly transmitted to the drive device 15 to achieve a fast response. The sensing element 113 is electrically connected to the control circuit board 111, and the sensing element 113 is positioned close to the surface of the main plate 31 away from the pump door 50, so that when the pump door 50 is close to the main plate 31, the sensing element 113 can sense the pump door 50 and control the drive device 15 to start. The rotating rod 13 is connected to the main body plate 31, and the fastening piece 133 on the rotating rod 13 is positioned facing the pump door 50. This allows the fastening piece 133 to easily engage the pump door 50 when it closes to the main body plate 31, thus connecting the rotating rod 13 and the main body plate 31 into a single unit. This effectively ensures the overall strength of the pump body 30, increases the force on the pump door opening and closing device 10, and allows the pump door 50 to close more securely on the pump body 30, thereby improving the overall stability of the infusion pump 100. The above-described layout of the pump door opening and closing device 10 effectively utilizes the structure of the pump body 30, facilitating installation and maintenance. Simultaneously, it connects the pump body 30 and the pump door opening and closing device 10 into a single unit, improving the stability of the infusion pump 100.

[0049] Furthermore, referring to Figure 2 , Figure 6 , Figure 7 , Figure 8 and Figure 10 In one embodiment of the present invention, the surface of the main body plate 31 facing the pump door 50 is provided with a receiving groove 311, and the surface of the pump door 50 is provided with a pressure pipe block 51, with the receiving groove 311 fitting the pressure pipe block 51. And / or, the fastening member 133 is provided with a sliding groove 1331, and the surface of the pump door 50 near the main body plate 31 is provided with a latch 53, which is slidably connected to the sliding groove 1331 so that the fastening member 133 fastens the pump door 50.

[0050] In this embodiment, the infusion pump 100 clamps the infusion tube using the pump door 50 and the pump body 30, and then adjusts the infusion tube using the equipment on the pump body 30, thereby achieving the function of controlling the infusion rate. Therefore, a receiving groove 311 can be provided on the surface of the main body plate 31 facing the pump door 50 to accommodate the infusion tube. The tube pressing block 51 on the surface of the pump door 50 cooperates with the receiving groove 311. When the pump door 50 closes the main body plate 31, the receiving groove 311 is fitted with the tube pressing block 51, and the tube pressing block 51 abuts against the infusion tube in the receiving groove 311, so that the infusion tube is at least partially fixed inside the infusion pump 100. This allows the equipment on the pump body 30 to adjust and control the infusion tube, effectively ensuring the reliability of the infusion pump 100.

[0051] Secondly, a latch 53 is provided on the surface of the pump door 50 near the main body plate 31, and a groove 1331 is provided on the surface of the fastening member 133. When the fastening member 133 rotates with the rotating rod 13, the latch 53 will fall into the groove 1331. As the fastening member 133 rotates, the groove 1331 causes the latch 53 to gradually slide into the groove 1331, thereby causing the fastening member 133 to fasten the latch 53 and realize the closure of the pump door 50. By using the sliding groove 1331 to fix the bolt 53, the pump door 50 can be effectively fixed to the pump body 30. At the same time, the sliding groove 1331 is spiral in shape. When the bolt 53 slides completely into the sliding groove 1331, the end of the sliding groove 1331 can just lock the bolt 53, which can restrict the movement of the bolt 53 and effectively fix the pump door 50. This allows the pump door opening and closing device 10 to play a self-locking role, which is beneficial to protect the drive device 15 and avoid the existence of a gap that would allow the pump door 50 to move and pull the fastening piece 133 in the opposite direction, thereby causing the drive device 15 to be subjected to torque.

[0052] Reference Figures 2 to 4In one embodiment of the present invention, a fixing groove 313 is recessed on the surface of the main body plate 31, and the opening of the fixing groove 313 faces the pump door 50. The rotating rod 13 includes a rotating rod body 139, which is connected to the surface of the main body plate 31 away from the pump door 50. One end of the rotating rod body 139 passes through the fixing groove 313, and a fastener 133 is connected to the end of the rotating rod body 139 and located in the fixing groove 313.

[0053] In this embodiment, a fixing groove 313 is recessed on the surface of the main body plate 31, with the opening of the fixing groove 313 facing the pump door 50. By inserting the end of the rotating rod body 139 into the fixing groove 313, the fastening member 133 is set in the fixing groove 313. Then, the end of the rotating rod body 139 is connected, so that the rotating rod body 139 of the rotating rod 13 can be set on the surface of the main body plate 31 away from the pump door 50. At the same time, the fastening member 133 on the rotating rod 13 can also fasten the pump door 50. The structure is reliable, and the fixing groove 313 can also provide a certain degree of fixation for the rotating rod 13. The above arrangement is mainly to allow the rotating rod 13 to be set away from the pump door 50, which facilitates the connection between the drive device 15 set on the connecting body 33 and the rotating rod body 139, reducing power loss. It also facilitates the cooperation between the switch member 131 on the rotating rod body 139 and the controller 11 on the connecting body 33, reducing the impact on signal transmission and improving the control response speed. At the same time, it can make the surface of the main plate 31 and the pump door 50 neat and smooth, improve the aesthetics, and further prevent the rotating rod 13 from directly contacting the pump door 50, which is beneficial to protect the rotating rod 13 and the pump door 50, and improve the stability and reliability of the infusion pump 100.

[0054] Furthermore, referring to Figures 2 to 4 In one embodiment of the present invention, the surface of the main body plate 31 is recessed with two fixing grooves 313, and the two ends of the rotating rod body 139 pass through the two fixing grooves 313 respectively. The rotating rod 13 is provided with two fastening members 133, which are respectively connected to the two ends of the rotating rod body 139 and are respectively located in the two fixing grooves 313.

[0055] In this embodiment, to further improve the overall stability of the infusion pump 100, two fixing grooves 313 can be recessed on the main body plate 31, allowing both ends of the rotating rod body 139 to pass through the two fixing grooves 313 respectively, so that the rotating rod 13 can be stably fixed on the main body plate 31. At the same time, the rotating rod 13 can be provided with two fastening members 133, which are respectively set in the two fixing grooves 313 and connected to both ends of the rotating rod body 139. Using two fastening members 133 to fasten with the pump door 50 can, on the one hand, improve the fixing strength of the pump door 50, making the connection between the pump door 50 and the pump body 30 tighter and less likely to detach; on the other hand, it can make the force of the pump door opening and closing device 10 on the pump door 50 more even, avoiding the pump door 50 being subjected to excessive force in one place during the opening and closing process, thus effectively ensuring the structural stability of the infusion pump 100.

[0056] Furthermore, referring to Figure 2 , Figure 3 , Figure 4 and Figure 8 In one embodiment of the present invention, the rotating rod 13 is also fitted with a sealing ring 135, which is disposed between the rotating rod body 139 and the fixing groove 313.

[0057] In this embodiment, since the end of the rotating rod body 139 passes through the fixing groove 313, in order to ensure the waterproof performance of the infusion pump 100, a sealing ring 135 can be provided at the connection between the rotating rod body 139 and the fixing groove 313. This prevents liquid from seeping into the pump body 30 from the gap between the rotating rod body 139 and the fixing groove 313, ensuring that the infusion pump 100 has a certain degree of water tightness and improving the practicality of the infusion pump 100. To facilitate the installation of the rotating rod 13, the groove side plate 3131 connecting the fixing groove 313 and the rotating rod 13 body can be made detachable. During installation, simply fit the sealing ring 135 onto the rotating rod 13, then insert the rotating rod 13 into the body plate 31, so that the sealing ring 135 abuts against the fixing groove 313, and then insert the groove side plate 3131 to abut against the sealing ring 135. This effectively fixes the rotating rod 13 onto the body plate 31, facilitating the installation and maintenance of the infusion pump 100.

[0058] Reference Figure 3 and Figure 8 In one embodiment of the present invention, the driving device 15 includes a driving source 151 and a transmission wheel 153. The driving source 151 is connected to the connecting body 33 and has a driving wheel 1511. The transmission wheel 153 is connected to the connecting body 33 and includes an integrally connected transmission section 1531 and a reduction section 1533. The transmission section 1531 is connected to the driving wheel 1511. The rotating rod body 139 has a driven wheel 137, which is connected to the reduction section 1533.

[0059] In this embodiment, the drive device 15, through the arrangement of the drive wheel 1511 and the transmission wheel 153, forms a two-stage reduction transmission structure between the drive device 15 and the rotating rod 13. The difference in diameter between the transmission section 1531 and the reduction section 1533 of the transmission wheel 153 is used to buffer the rotational speed. The drive wheel 1511 is connected to the transmission section 1531 of the transmission wheel 153, so that the power of the drive source 151 is transmitted to the transmission section 1531, and then to the driven wheel 137 through the reduction section 1533. Thus, the power of the drive source 151 can be reduced to a certain extent before being transmitted to the rotating rod 13, avoiding the rotating rod 13 from being subjected to large torque, which helps to reduce the requirements of the drive source 151. At the same time, the size of the transmission wheel 153 can be set according to the requirements of the pump door 50 opening and closing time, so that the pump door opening and closing device 10 can be applied to various infusion pumps 100, and the applicable scenarios of the infusion pump 100 can be improved, further enhancing the practicality of the infusion pump 100.

[0060] The present invention also proposes an infusion device (not shown), which includes an infusion pump 100 and a device body (not shown). The specific structure of the infusion pump 100 is as described in the above embodiments. Since the infusion device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0061] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An infusion pump, characterized in that, The infusion pump includes a pump body and a pump door, the pump door being openable and closable connected to the pump body. The pump body is provided with a pump door opening and closing device, which includes: Drive unit; A rotating rod, which is connected to the driving device, is provided with a switch and a fastening element; Controller, the controller being signal-connected to the drive device; and A position switch, wherein the position switch is signal-connected to the controller; The driving device is used to drive the rotating rod to rotate so that the fastening member fastens the pump door and the switching member matches the position switch; The pump body includes a connecting body and a main plate. The main plate is connected to the connecting body and is closable to the pump door. The rotating rod is connected to the main plate, and the fastening member faces the pump door. A fixing groove is recessed on the surface of the main plate, and the opening of the fixing groove faces the pump door. The rotating rod includes a rotating rod body, which is connected to the surface of the main plate away from the pump door. One end of the rotating rod body passes through the fixing groove, and the fastening member is connected to the end of the rotating rod body and located within the fixing groove. The fastening member can rotate to extend out of the opening of the fixing groove and can also rotate to retract into the fixing groove. The fastener is provided with a sliding groove, and the pump door is provided with a latch on the surface near the main body plate. The latch is slidably connected to the sliding groove so that the fastener can fasten the pump door. The sliding groove is spiral in shape, and when the latch is fully slid into the sliding groove, the end of the sliding groove locks the latch.

2. The infusion pump as described in claim 1, characterized in that, The controller includes: A control circuit board is connected to the pump body and is signal-connected to the drive device; A sensing element, electrically connected to the control circuit board, is positioned facing the pump door; and An electronic control component, which is electrically connected to the control circuit board.

3. The infusion pump as described in claim 2, characterized in that, The position switch includes a first switch and a second switch, both of which are electrically connected to the control circuit board; The switching element reciprocates between the first switch and the second switch, and is matched with either the first switch or the second switch.

4. The infusion pump as described in claim 2, characterized in that, The control circuit board and the drive device are both connected to the connector, and the sensing element is close to the surface of the main plate away from the pump door.

5. The infusion pump as described in claim 4, characterized in that, The main body plate has a receiving groove on the surface facing the pump door, and the surface of the pump door has a pressure pipe block, with the receiving groove fitting the pressure pipe block.

6. The infusion pump as described in claim 4, characterized in that, The surface of the main plate is recessed with two fixing grooves, and both ends of the rotating rod body pass through the two fixing grooves respectively; The rotating rod is provided with two fastening members, which are respectively connected to both ends of the rotating rod body and are located in the two fixing grooves.

7. The infusion pump as described in claim 6, characterized in that, The rotating rod is also fitted with a sealing ring, which is located between the rotating rod body and the fixing groove.

8. The infusion pump as described in claim 4, characterized in that, The driving device includes: A drive source, connected to the connecting body, wherein the drive source is provided with a drive wheel; and A transmission wheel is connected to the connecting body. The transmission wheel includes an integrally connected transmission section and a reduction section, and the transmission section is connected to the driving wheel. The rotating rod body is provided with a driven wheel, which is connected to the deceleration section.

9. An infusion device, characterized in that, The infusion device includes an infusion pump and a device body, wherein the infusion pump is connected to the device body, and the infusion pump is any one of the infusion pumps described in claims 1 to 8.

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