Intelligent injection pump

By incorporating sensing components and a push plate design, the problem of gaps between the syringe grip and the side of the pump body during installation has been solved, achieving precision and safety in injection volume and making it suitable for various syringe sizes.

CN121422342APending Publication Date: 2026-01-30BEIJINGKELLYMEDCO
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Patent Information

Application Number
CN202511945724.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-22
Publication Date
2026-01-30

AI Technical Summary

Technical Problem

Existing syringe pumps have gaps between the syringe grip and the side of the pump body due to improper placement and installation of the syringe during installation. This affects the accuracy of the injection volume and may even pose a safety hazard.

Method used

The system uses a sensor to detect the rotation angle of the clamping plate, and drives the displacement component to move axially via a rotating rod. Combined with the push plate and reset component, it ensures that the gripping part of the syringe is accurately clamped. The system includes a threaded connection and a spring-loaded component to accommodate different diameters and thicknesses, and an electronic control device to control the clamping stability.

Benefits of technology

It improves the accuracy of injection volume, prevents syringe displacement during injection, enhances safety and applicability, and is suitable for syringes of different diameters and thicknesses.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an intelligent injection pump, and relates to the technical field of medical instruments. The intelligent injection pump comprises a pump main body, a pump door is arranged on the pump main body, and a mounting channel for mounting an injector is arranged between the pump main body and the pump door; the clamping plate is arranged in the mounting channel; the sensing assembly is arranged in the pump body, the sensing assembly is used for detecting the rotating angle of the clamping plate in the mounting channel, the sensing assembly comprises a rotating rod and a displacement assembly, and the rotating rod is fixedly connected with the clamping plate so that the displacement assembly can be driven by rotation of the rotating rod to move in the axial direction of the rotating rod; the push plate abuts against the displacement assembly, the push plate is located outside the pump body, a reset assembly is arranged on the push plate, and the push plate and the side face of the pump body are used for clamping the holding part of the injector. The problem that a gap exists between the holding part and the side face of the pump body due to placement and installation errors in the prior art is solved, and therefore in the injection process, an injector cannot move, and the accuracy of the injection amount is improved.
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Description

Technical Field

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

[0002] An infusion pump is a medical device used to precisely and controllably deliver liquids (such as medications, nutritional solutions, blood products, etc.) into a patient's body.

[0003] Several prior art technologies concerning syringe pumps have been disclosed. For example, invention patent CN112807525A discloses a syringe pump and injection system. The pump body has a receiving groove for accommodating a syringe body, and a mounting groove for mounting and accommodating a clamping handle is formed on the side wall of the receiving groove. The clamping handle is used to clamp the syringe body within the receiving groove. The pump door is rotatably connected to the pump body and has a closed position and an open position. When the pump door is in the closed position, at least two sides of the pump door are connected to the pump body, and a receiving space is formed between the back of the pump door and the front of the pump body. The clamping handle and at least a portion of the receiving groove are disposed within this receiving space, so that the portion of the syringe body clamped by the clamping handle is located within the receiving space. This prevents dust from falling onto the syringe body and clamping handle, ensuring cleanliness, hygiene, and aesthetics; it also prevents accidental contact with the syringe. Furthermore, this invention saves space by creating a mounting groove on the side wall of the receiving groove to accommodate the clamping handle.

[0004] When installing a syringe into an infusion pump, the empty syringe barrel needs to be placed inside the receiving slot and clamped by the handle to secure the syringe. While the correct procedure requires the syringe grip to be against the side of the pump body, in practice, medical personnel may slightly deviate in the position of the empty barrel during placement and installation, or the barrel may shift slightly when the handle is clamped, creating a gap between the grip and the pump body. During injection, friction between the plunger and the empty barrel, caused by this gap, can lead to the plunger moving the barrel forward, reducing injection accuracy and potentially posing a safety hazard. Summary of the Invention

[0005] In view of the deficiencies in the existing technology, the technical problem solved by the present invention is: how to improve the accuracy of injection volume.

[0006] To achieve the above objectives, the present invention provides an intelligent infusion pump comprising: The pump body has a pump door, and there is an installation channel between the pump body and the pump door for installing the syringe. A clamp, which is installed inside the installation channel; The sensing component is located inside the pump body. The sensing component is used to detect the rotation angle of the clamping plate inside the installation channel. The sensing component includes a rotating rod and a displacement component. The rotating rod is fixedly connected to the clamping plate so that the rotation of the rotating rod drives the displacement component to move along the axial direction of the rotating rod. The push plate abuts against the displacement component and is located outside the pump body. The push plate is equipped with a reset component. The push plate and the side of the pump body are used to hold the syringe grip.

[0007] By adopting the above technical solution, the pump door on the pump body is opened, and the operator manually drives the clamping plate to rotate, changing the clamping plate from a clamping state to an unfolded state. At this time, the displacement component moves along the axis of the rotating rod as the rotating rod rotates, thus driving the push plate away from the side of the pump body. After the above state transformation is completed, the syringe is placed into the installation channel. The grip of the syringe is located between the push plate and the side of the pump body. By manually driving the clamping plate to rotate, changing the clamping plate from an unfolded state to a clamping state, the displacement component moves in the opposite direction. Therefore, the push plate returns to its initial position due to the reset component, thereby pushing the grip closer to the side of the pump body. Thus, the clamping plate clamps the empty syringe barrel inside the installation channel, and the push plate and the side of the pump body clamp the grip of the syringe. The two actions are achieved simultaneously. Therefore, this intelligent syringe pump solves the problem of gaps between the grip and the side of the pump body that may exist due to placement or installation errors in the prior art. As a result, the syringe will not shift during injection, thus improving the accuracy of injection volume.

[0008] In one embodiment, the displacement assembly includes a movable plate, one end of which is provided with a connecting ring, and the other end of the movable plate abuts against a push plate; the inner ring of the connecting ring is threaded, the rotating rod is threaded, the connecting ring is sleeved on the rotating rod, and the connecting ring is threadedly connected to the rotating rod.

[0009] By adopting the above technical solution, as the rotating rod rotates, the connecting ring can reciprocate along the axis of the rotating rod, thereby moving the displacement component.

[0010] In one embodiment, the displacement assembly includes a movable cylinder and a movable plate. One end of the movable plate is provided with a connecting ring, and the other end of the movable plate abuts against a push plate. The connecting ring is sleeved on a rotating rod. A spiral groove is provided on the movable cylinder, and a slider is provided on the rotating rod. The slider is located inside the spiral groove, and guide seats are provided on both sides of the movable cylinder. The end of the movable cylinder near the push plate abuts against the connecting ring.

[0011] By adopting the above technical solution, the moving direction of the moving plate is more accurate, and the moving distance can be adjusted according to the different spiral grooves opened on the moving cylinder, thereby adjusting the clamping distance between the push plate and the side of the pump body, thus further improving the accuracy of the injection volume.

[0012] In one embodiment, a fixed seat is sleeved on the rotating rod located between the connecting ring and the clamping plate, and a first spring-loaded assembly is provided between the fixed seat and the connecting ring. One end of the first spring-loaded assembly abuts against the fixed seat, and the other end of the first spring-loaded assembly abuts against the connecting ring.

[0013] By adopting the above technical solution, the clamping plate can automatically return to the clamping state after being unfolded. At the same time, the above design can be applied to the installation of empty cylinders of different diameters, improving the applicability of the injection pump.

[0014] In one embodiment, a locking groove is provided at the end of the spiral groove away from the connecting ring, and the opening direction of the locking groove is perpendicular to the axis of the rotating rod.

[0015] By adopting the above technical solution, the clamp can be kept in an unfolded state during syringe installation.

[0016] In one embodiment, a connecting assembly is provided between the movable plate and the push plate. The connecting assembly includes a connecting seat and a connecting rod. The connecting seat abuts against the movable plate, and the push plate is fixedly connected to the connecting seat through the connecting rod, which extends through the side of the pump body.

[0017] By adopting the above technical solution, the connecting rod guides the movement of the push plate and increases the contact area between the push plate and the gripping part, thereby further improving the accuracy of the injection volume.

[0018] In one embodiment, the reset assembly includes a connecting rod and a second spring-loaded assembly; the connecting rod includes a rod body and a telescopic rod, one end of the rod body is fixedly connected to a connecting seat, one end of the telescopic rod is fixedly connected to a push plate, and the other end of the telescopic rod is movably disposed inside the rod body; the second spring-loaded assembly is sleeved on the rod body, one end of the second spring-loaded assembly is fixedly connected to the connecting seat, and the other end of the second spring-loaded assembly is fixedly connected to the inner wall of the pump body.

[0019] By adopting the above technical solution, the gripping parts of different thicknesses can be clamped more stably. At the same time, when directly switching between syringes with different diameter empty cylinders, the clamping gap between the push plate and the side of the pump body can be avoided from being too large, which would prevent the gripping parts from being clamped, thereby improving the accuracy of the injection volume.

[0020] In one embodiment, the spiral direction of the spiral groove from the end near the push plate to the end away from the push plate is the same as the rotation direction of the rotating rod.

[0021] By adopting the above technical solution, the movement of the moving cylinder is made smoother, and jamming is avoided.

[0022] In one embodiment, the pump body is provided with a pressing assembly for pressing the plunger of the syringe. The pressing assembly is provided with a gripping clamp. An electrical control device is provided inside the pump body. The electrical control device is electrically connected to the gripping clamp, which is used to hold the hand at the end of the plunger.

[0023] By adopting the above technical solution, the electronic control device controls the gripper to hold the syringe handle, improving the stability of the gripping and thus improving the stability of the push rod advancement.

[0024] In one embodiment, the pressing component is provided with a manual drive switch, which is used to control the clamping and unfolding of the gripper.

[0025] By adopting the above technical solution, both electrical and mechanical controls can be used to simultaneously control the gripper, thus improving its applicability.

[0026] In summary, the present invention has at least one of the following beneficial technical effects: 1. By opening the pump door on the pump body, the operator manually drives the clamping plate to rotate, changing it from a clamping state to an unfolded state. At this time, the displacement component moves along the axis of the rotating rod, thus moving the push plate away from the side of the pump body. After the state transition is complete, the syringe is placed into the installation channel. The syringe grip is located between the push plate and the side of the pump body. By manually driving the clamping plate to rotate, changing it from an unfolded state to a clamping state, the displacement component moves in the opposite direction. Therefore, the push plate returns to its initial position due to the reset component, pushing the grip closer to the side of the pump body. This allows the clamping plate to hold the empty syringe barrel inside the installation channel, and the push plate and the side of the pump body to hold the syringe grip. Both actions are achieved simultaneously. Therefore, this intelligent syringe pump solves the problem of gaps between the grip and the side of the pump body that may exist due to placement or installation errors in existing technologies. Thus, the syringe does not shift during injection, improving the accuracy of the injection volume. 2. Through the specific design of the displacement component, this intelligent injection pump can clamp empty cylinders of different diameters, and the clamping plate can automatically spring back after unfolding. Through the specific design of the connecting component, it can achieve more stable clamping of gripping parts of different thicknesses, and overcome the difficulty of achieving the above two effects at the same time, thereby further improving the accuracy of injection volume. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the intelligent injection pump according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the internal structure of the intelligent injection pump according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the syringe structure according to an embodiment of the present invention. Figure 4 This is a schematic diagram of the rotating rod according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the displacement component according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the pressing component in an embodiment of the present invention.

[0028] In the diagram: 1-Pump body, 2-Pump door, 3-Installation channel, 4-Push plate, 5-Pressing assembly, 6-Rotating rod, 601-Slider, 602-Fixed seat, 603-Angle sensor, 7-Displacement assembly, 701-Moving cylinder, 702-Helical groove, 703-Locking groove, 704-Guide seat, 705-Moving plate, 706-Connecting ring, 8-Clamping plate, 9-First rebound assembly, 10-Connecting seat, 11-Connecting rod, 12-Grip clamp, 13-Manual drive switch, 14-Empty cylinder, 15-Grip part, 16-Push rod, 17-Hand, 18-Push rod, 19-Lead screw, 20-Motor, 21-Transmission assembly. Detailed Implementation

[0029] The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] The intelligent syringe pump in this embodiment of the invention, see [link to relevant documentation]. Figure 1 , Figure 2 , Figure 3 As shown, the intelligent syringe pump includes a pump body 1 with a pump door 2, and an installation channel 3 for installing a syringe between the pump body 1 and the pump door 2; a clamping plate 8, which is disposed inside the installation channel 3; a sensing component, which is disposed inside the pump body 1, and is used to detect the rotation angle of the clamping plate 8 inside the installation channel 3. The sensing component includes a rotating rod 6 and a displacement component 7. The rotating rod 6 is fixedly connected to the clamping plate 8, and the clamping plate 8 rotates around the rotating rod 6 as the center, so that the rotation of the rotating rod 6 drives the displacement component 7 to move along the axial direction of the rotating rod 6; and a push plate 4, which abuts against the displacement component 7 and is located outside the pump body 1. The push plate 4 is provided with a reset component, and the push plate 4 and the side of the pump body 1 are used to clamp the gripping part 15 of the syringe.

[0031] Therefore, the present invention opens the pump door 2 on the pump body 1, and the operator manually drives the clamping plate 8 to rotate, so that the clamping plate 8 changes from the clamping state to the unfolded state. At this time, the displacement component 7 moves along the axis of the rotating rod 6 as the rotating rod 6 rotates. Therefore, the displacement component 7 drives the push plate 4 away from the side of the pump body 1. After the above state change is completed, the syringe is placed into the installation channel 3. The grip part 15 of the syringe is located between the push plate 4 and the side of the pump body 1. By manually driving the clamping plate 8 to rotate, the clamping plate 8 changes from the unfolded state to the clamping state. The displacement component 7 moves in the opposite direction. Therefore, the push plate 4 will return to the initial position due to the reset component, thereby pushing the grip part 15 closer to the side of the pump body 1. Thus, the clamping plate 8 clamps the empty syringe barrel 14 inside the installation channel 3. The push plate 4 and the side of the pump body 1 clamp the grip part 15 of the syringe. The two actions are achieved simultaneously. Therefore, this intelligent syringe pump solves the problem in the prior art where there is a gap between the grip part 15 and the side of the pump body 1 due to placement or installation errors. As a result, the syringe will not be displaced during injection, thus improving the accuracy of the injection volume.

[0032] Preferably, a specific structure for the displacement component 7 is provided: The displacement assembly 7 includes a movable plate 705, one end of which is provided with a connecting ring 706, and the other end of the movable plate 705 abuts against the push plate 4; the inner ring of the connecting ring 706 is threaded, the rotating rod 6 is threaded, the connecting ring 706 is sleeved on the rotating rod 6, and the connecting ring 706 is threadedly connected to the rotating rod 6; the movable plate 705 is provided with a guide.

[0033] Specifically, the connecting ring 706 is threadedly connected to the rotating rod 6, and the guide on the moving plate 705 allows the moving plate 705 to only move in a straight line. Therefore, when the rotating rod 6 rotates, the connecting ring 706 moves in a straight line (screw motion principle). As the rotating rod 6 rotates, the connecting ring 706 can reciprocate along the axis of the rotating rod 6, thereby moving the displacement component 7. Thus, the moving plate 705 can drive the push plate 4 to move away from or towards the side of the pump body 1.

[0034] Preferred, see Figure 3 , Figure 4 As shown, another displacement component 7 has a specific structure: The displacement assembly 7 includes a movable cylinder 701 and a movable plate 705. One end of the movable plate 705 is provided with a connecting ring 706, and the other end of the movable plate 705 abuts against the push plate 4. The connecting ring 706 is sleeved on the rotating rod 6. The movable cylinder 701 is provided with a spiral groove 702, and the rotating rod 6 is provided with a slider 601, which is located inside the spiral groove 702. Guide seats 704 are provided on both sides of the movable cylinder 701. The end of the movable cylinder 701 near the push plate 4 abuts against the connecting ring 706.

[0035] Specifically, by manually rotating the clamping plate 8, the rotating rod 6 is driven to rotate, thereby causing the slider 601 on the rotating rod 6 to move synchronously. The rotation angle information of the rotating rod 6 is collected by the angle sensor 603. Since the slider 601 is movably set inside the spiral groove 702, and since the moving cylinder 701 can only move linearly and cannot rotate, the movement of the slider 601 inside the spiral groove 702 will drive the moving cylinder 701 to move linearly, thereby pushing the connecting ring 706 to move. The above design makes the moving direction of the moving plate 705 more accurate, and the moving distance can be adjusted according to the different spiral grooves 702 opened on the moving cylinder 701, thereby adjusting the clamping distance between the push plate 4 and the side of the pump body 1, thereby further improving the accuracy of the injection volume.

[0036] Further, see Figure 4 As shown, a fixed seat 602 is sleeved on the rotating rod 6 located between the connecting ring 706 and the clamping plate 8. A first spring-loaded component 9 is provided between the fixed seat 602 and the connecting ring 706. One end of the first spring-loaded component 9 abuts against the fixed seat 602, and the other end of the first spring-loaded component 9 abuts against the connecting ring 706.

[0037] Specifically, when the rotating rod 6 rotates clockwise ( Figure 4 (Left view) The clamping plate 8 changes from the clamping state to the unfolded state. At this time, the driving moving cylinder 701 moves closer to the clamping plate 8, thereby compressing the first spring-loaded assembly 9 between the connecting ring 706 and the fixed seat 602. After the syringe is placed in the installation channel 3, the torque on the rotating rod 6 is released. The first spring-loaded assembly 9 will drive the connecting ring 706 and the moving cylinder 701 to return to the initial position due to the elastic force, thereby driving the rotating rod 6 to rotate counterclockwise. Therefore, the clamping plate 8 will change from the unfolded state to the clamping state and clamp the empty cylinder 14 of the syringe. At the same time, the reset assembly will drive the push plate 4 to move closer to the side of the pump body 1. The push plate 4 pushes the grip part 15 of the syringe until the grip part 15 is clamped by the push plate 4 and the side of the pump body 1. Therefore, the above design can be applied to the installation of empty cylinders 14 of different diameters, improving the applicability of the injection pump. At the same time, after the clamping plate 8 is unfolded, it can automatically return to the clamping state. The first spring-loaded assembly 9 can be a spring, and the rotating rod 6 can also guide the spring to prevent the spring from bending.

[0038] Preferred, see Figure 4 As shown, a locking groove 703 is provided at the end of the spiral groove 702 away from the connecting ring 706, and the opening direction of the locking groove 703 is perpendicular to the axis of the rotating rod 6.

[0039] Specifically, when the slider 601 moves into the locking groove 703, the continued rotation of the rotating rod 6 will not drive the moving cylinder 701 to continue moving. Furthermore, the rebound force of the first rebound component 9 is in the horizontal direction, which will only drive the slider 601 to make vertical compression with the inner wall of the locking groove 703, thereby achieving a locking effect and keeping the clamping plate 8 in the unfolded state. When it is necessary to clamp the syringe, the slider 601 on the rotating rod 6 can be driven to disengage from the locking groove 703 by manually rotating the clamping plate 8. The first rebound component 9 will drive the clamping plate 8 and the push plate 4 to fix the syringe.

[0040] Preferred, see Figure 2 , Figure 5 As shown, a connecting assembly is provided between the movable plate 705 and the push plate 4. The connecting assembly includes a connecting seat 10 and a connecting rod 11. The connecting seat 10 abuts against the movable plate 705, and the push plate 4 is fixedly connected to the connecting seat 10 through the connecting rod 11. The connecting rod 11 passes through the side of the pump body 1.

[0041] Specifically, the connecting rod 11 guides the movement of the push plate 4 and increases the contact area between the push plate 4 and the gripping part 15, thereby further improving the accuracy of the injection volume.

[0042] Furthermore, the reset assembly includes a connecting rod 11 and a second spring-loaded assembly; the connecting rod 11 includes a rod body and a telescopic rod, one end of the rod body is fixedly connected to the connecting seat 10, one end of the telescopic rod is fixedly connected to the push plate 4, and the other end of the telescopic rod is movably disposed inside the rod body; the second spring-loaded assembly is sleeved on the rod body, one end of the second spring-loaded assembly is fixedly connected to the connecting seat 10, and the other end of the second spring-loaded assembly is fixedly connected to the inner wall of the pump body 1.

[0043] Specifically, when clamping grip portions 15 of different thicknesses, the second rebound component, after compression, drives the connecting seat 10 away from the inner wall of the pump body 1, that is, the push plate 4 approaches the side of the pump body 1. Since the telescopic rod can extend and retract on the rod body, it can adapt to grip portions 15 of different thicknesses. When the thickness of the grip portion 15 increases, the extension length of the telescopic rod is longer. At the same time, when directly switching syringes with different diameter empty cylinders 14, the clamping distance between the push plate 4 and the side of the pump body 1 is avoided from being too large, which would prevent the grip portion 15 from being clamped, thereby improving the accuracy of the injection volume.

[0044] It should be noted that the extension length of the telescopic rod is controllable and is electrically controlled to prevent the push plate 4 from having no clamping force on the gripping part 15.

[0045] Preferred, see Figure 4 As shown, the spiral direction of the spiral groove 702 from the end near the push plate 4 to the end away from the push plate 4 is the same as the rotation direction of the rotating rod 6.

[0046] Specifically, with Figure 4 Taking the left view as an example, when the clamping plate 8 needs to be unfolded, the rotation direction of the rotating rod 6 is clockwise, so the spiral direction of the spiral groove 702 is opened clockwise. If it is the opposite, the slider 601 may get stuck inside the spiral groove 702.

[0047] Preferred, see Figure 2 , Figure 6 As shown, a pressing assembly 5 is provided on the pump body 1. The pressing assembly 5 is used to press the plunger 16 of the syringe. A gripper 12 is provided on the pressing assembly 5. An electrical control device is provided inside the pump body 1. The electrical control device is electrically connected to the gripper 12. The gripper 12 is used to hold the handle 17 at the end of the plunger 16.

[0048] Furthermore, a manual drive switch 13 is provided on the pressing component 5, which is used to control the clamping and unfolding of the gripper 12.

[0049] Specifically, the electronic control device controls the gripper 12 to clamp the syringe handle 17, improving the stability of the clamping and thus improving the stability of the push rod 16. Furthermore, the gripper 12 of the injection pump can be controlled in two ways to improve its applicability.

[0050] Furthermore, a motor 20 is installed inside the pump body 1. The motor 20 drives the lead screw 19 to rotate through the transmission assembly, thereby releasing the restrictive component between the lead screw 19 and the push rod 18, thus enabling the push rod 18 to move left and right, i.e., the pressing component 5 to move closer to or further away from the pump body 1. At the same time, the manual drive switch 13 can not only control the clamping and unfolding of the gripper 12, but also release the restrictive component between the lead screw 19 and the push rod 18 when the manual drive switch 13 is pressed down, i.e., when rotating, thus enabling the push rod 18 to move left and right, i.e., the pressing component 5 to move closer to or further away from the pump body 1. The above design makes the installation of the syringe more flexible and more precise.

[0051] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A smart syringe pump, characterized in that, It includes: The pump body (1) is provided with a pump door (2), and the pump body (1) and the pump door (2) have a mounting channel (3) for mounting a syringe; The clamping plate (8) is arranged inside the mounting channel (3); The sensing assembly is arranged inside the pump body (1), and the sensing assembly is used for detecting the rotation angle of the clamping plate (8) inside the mounting channel (3), the sensing assembly includes a rotating rod (6) and a displacement assembly (7), the rotating rod (6) is fixedly connected with the clamping plate (8), so that the rotation of the rotating rod (6) drives the displacement assembly (7) to move along the axial direction of the rotating rod (6); The push plate (4) is arranged on the displacement assembly (7), and the push plate (4) is arranged outside the pump body (1), the push plate (4) is provided with a reset assembly, and the push plate (4) is arranged on the side of the pump body (1) for clamping the syringe.

2. The smart syringe pump of claim 1, wherein: The displacement assembly (7) includes a moving plate (705), one end of the moving plate (705) is provided with a connecting ring (706), and the other end of the moving plate (705) abuts against the push plate (4); a thread is formed in the inner ring of the connecting ring (706), a thread is formed on the rotating rod (6), the connecting ring (706) is sleeved on the rotating rod (6), and the connecting ring (706) is screwed with the rotating rod (6).

3. The smart syringe pump of claim 1, wherein: The displacement assembly (7) includes a moving cylinder (701) and a moving plate (705), one end of the moving plate (705) is provided with a connecting ring (706), the other end of the moving plate (705) abuts against the push plate (4), and the connecting ring (706) is sleeved on the rotating rod (6); a spiral groove (702) is formed in the moving cylinder (701), a sliding block (601) is arranged on the rotating rod (6), the sliding block (601) is arranged in the spiral groove (702), and guide seats (704) are arranged on both sides of the moving cylinder (701); one end of the moving cylinder (701) close to the push plate (4) abuts against the connecting ring (706).

4. The smart syringe pump of claim 3, wherein: The rotating rod (6) between the connecting ring (706) and the clamping plate (8) is sleeved with a fixing seat (602), a first elastic component (9) is arranged between the fixing seat (602) and the connecting ring (706), one end of the first elastic component (9) abuts against the fixing seat (602), and the other end of the first elastic component (9) abuts against the connecting ring (706).

5. The smart syringe pump of claim 4, wherein: The end of the spiral groove (702) away from the connecting ring (706) is provided with a locking groove (703), and the opening direction of the locking groove (703) is perpendicular to the axial direction of the rotating rod (6).

6. The smart syringe pump of claim 4, wherein: The connecting assembly is arranged between the moving plate (705) and the push plate (4), the connecting assembly includes a connecting seat (10) and a connecting rod (11), the connecting seat (10) abuts against the moving plate (705), the push plate (4) is fixedly connected with the connecting seat (10) through the connecting rod (11), and the connecting rod (11) penetrates the side of the pump body (1).

7. The smart syringe pump of claim 6, wherein: The reset assembly comprises a connecting rod (11) and a second rebound assembly; the connecting rod (11) comprises a rod main body and a telescopic rod, one end of the rod main body is fixedly connected with the connecting seat (10), one end of the telescopic rod is fixedly connected with the push plate (4), and the other end of the telescopic rod is movably arranged in the interior of the rod main body; the rod main body is sleeved with the second rebound assembly, one end of the second rebound assembly is fixedly connected with the connecting seat (10), and the other end of the second rebound assembly is fixedly connected with the inner wall of the pump main body (1).

8. The smart syringe pump of claim 3, wherein: The spiral direction of the spiral groove (702) from one end close to the push plate (4) to one end far from the push plate (4) is the same as the rotating direction of the rotating rod (6).

9. The smart syringe pump of claim 1, wherein: The pump main body (1) is provided with a pressing assembly (5) for pressing the push rod (16) of the syringe, the pressing assembly (5) is provided with a grabbing piece (12), the interior of the pump main body (1) is provided with an electric control device, the electric control device is electrically connected with the grabbing piece (12), and the grabbing piece (12) is used for clamping the pressing hand (17) at the end of the push rod (16).

10. The smart syringe pump of claim 9, wherein: The pressing assembly (5) is provided with a manual driving switch (13) for controlling the clamping and unfolding of the grabbing piece (12).

Citation Information

Patent Citations

  • Injection pump and injection system

    CN112807525A