Electrically powered syringe pump

Abstract

The application relates to the technical field of medical injection pumps, in particular to an electric injection pump which comprises a pump body, a control panel is fixedly embedded on the upper surface of the pump body, a fixed frame is fixedly installed at the front end of the upper surface of the pump body, a positioning seat is fixedly installed at the rear edge of the upper surface of the fixed frame, a concave frame is penetrated through the inner side of the fixed frame, an elastic mechanism is arranged between the concave frame and the side surface of the pump body, a limiting column is connected to the two upper ends of the concave frame through a pressing mechanism respectively, a rotating column is rotationally connected to the outer surface of the limiting column through a reset mechanism, and a guide plate is fixedly connected to one upper end of the concave frame and away from one side of the limiting column. The injection cylinder can be quickly disassembled and assembled, the drainage pipe is stretched and lifted during the pressing and assembling process of the injection cylinder, the connection part of the drainage pipe and the injection cylinder is prevented from being excessively bent, the problem that the connection part of the two is easily disconnected and leaks is solved, and stable transfusion is facilitated.

Description

Technical Field

[0001] This invention relates to the field of medical infusion pump technology, and more particularly to an electric infusion pump. Background Technology

[0002] A medical infusion pump is a medical device used to precisely control drug infusion. It delivers medication to the patient through a mechanical device, allowing for precise control of infusion rate and volume, thus improving the safety and effectiveness of drug therapy. It is widely used in various medical institutions, including hospitals, clinics, and home care.

[0003] In the existing technology, there are various ways to fix the syringe in medical infusion pumps, but they basically require the use of a fixing clamping mechanism to fix the syringe. The whole operation process is inconvenient and not conducive to quick assembly and disassembly. In addition, since the syringe is in a horizontal position, the drain tube is usually in a drooping position during use, and the port between the syringe and the drain tube is prone to breakage and leakage. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of the prior art by providing an electric injection pump.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: an electric injection pump, comprising a pump body, a control panel fixedly embedded on the upper surface of the pump body, a fixed frame fixedly installed at the front end of the upper surface of the pump body, a positioning seat fixedly installed at the rear of the upper surface of the fixed frame, a concave frame passing through the inner side of the fixed frame, an elastic mechanism provided between the concave frame and the side surface of the pump body, two upper ends of the concave frame respectively connected to limit posts through a clamping mechanism, a rotating post rotatably connected to the outer surface of the limit posts through a reset mechanism, a guide plate fixedly connected to one upper end of the concave frame and the side away from the limit post, a push plate connected to the rear end of one side surface of the pump body through an adjusting mechanism, an inclined guide rod fixedly connected to one side of the push plate, and a movable frame slidably connected to the front end of the upper surface of the fixed frame along the oblique forward direction;

[0006] The syringe moves down, and the lower end of the folding plate is inserted into the inside of the positioning seat, with the two limiting posts pressing against the upper ends of both sides of the folding plate.

[0007] As the push plate moves forward, the inclined guide rod pushes the guide plate downward, and the two limit posts slide down along the edge of the folding plate.

[0008] Preferably, a reinforcing rod is fixedly connected to one rear end of the fixed frame, and a reinforcing plate is fixedly connected to one end of the reinforcing rod. The reinforcing plate is fixedly installed on the side surface of the pump body.

[0009] Preferably, the elastic mechanism comprises a vertical T-shaped rod fixedly connected at the lower end corner of the reinforcing plate, a sleeve plate slidably sleeved on the outer surface of the upper end of the vertical T-shaped rod, the rear end of the sleeve plate is fixedly connected at the front surface upper end of the concave frame, a compression spring is sleeved on the outer surface of the vertical T-shaped rod, and the compression spring is located on the lower surface of the sleeve plate.

[0010] Preferably, the upper surface of the positioning seat is provided with a V-shaped groove.

[0011] Preferably, the abutting mechanism comprises a square rod fixedly connected at the front end of one side surface of the limiting column, a connecting frame is fixedly connected at the front surface upper end of the concave frame, one end of the square rod slidably penetrates through the side surface of the connecting frame, anti-coming-off blocks are fixedly connected on the upper and lower edges of one end of the square rod, a horizontal T-shaped rod is fixedly connected on one end surface of the square rod, an abutting spring is sleeved on the outer surface of the horizontal T-shaped rod, one end of the horizontal T-shaped rod slidably penetrates through the inner wall of the connecting frame, and the abutting spring is located on the inner side of the connecting frame.

[0012] Preferably, the reset mechanism comprises a rotating ring fixedly connected at one end of the rotating column, the rotating ring is rotatably sleeved on the outer surface of the limiting column, a sliding block is fixedly connected on the inner wall of the rotating ring, an arc-shaped groove is formed on the outer surface of the limiting column and close to the inner side of the rotating ring, the sliding block is slidably clamped into the inner side of the arc-shaped groove, and reset springs are arranged on the upper and lower surfaces of the inner side of the arc-shaped groove and close to the sliding block.

[0013] Preferably, the upper end of one side of the concave frame is provided with an extension plate, the rear surface of the extension plate is fixedly connected with the front end of the guide plate, a smooth end is formed on the rear end of the guide plate, and the lower end of the inclined guide rod is fixedly connected with a horizontal guide rod.

[0014] Preferably, the distance adjusting mechanism comprises an electric cylinder fixedly installed on the inner side of the pump body, a bending plate is fixedly connected with the telescopic end of the electric cylinder, a sliding opening is formed on one side surface of the pump body, the bending plate slidably penetrates through the inner side of the sliding opening, and the side edge of the push plate is fixedly connected with one end of the bending plate.

[0015] Preferably, the upper surface of the fixed frame is fixedly connected with an inclined plate at the front end, the upper surface of the inclined plate is provided with an inclined opening, the lower surface of the moving frame is fixedly connected with a convex block, the convex block slidably penetrates through the inner side of the inclined opening, the rear edge of the upper surface of the moving frame is provided with a pushing surface, and the front edge of the upper surface of the moving frame is provided with a lifting opening.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] 1、The present application can be quickly installed by pressing the injection cylinder, and the operation is convenient.

[0018] 2、The present application is in the process of installing the pressurized syringe, the drainage tube is stretched and lifted, and the connection between the drainage tube and the syringe is prevented from being excessively bent, thereby solving the problem of easy disconnection and leakage at the connection, and facilitating smooth infusion.

[0019] 3、The present application is in the process of injecting, and the two limiting columns are located at the lower sides of the two sides of the folding plate, so that the syringe can be removed by lifting with one hand, without the need for the other hand to press the pump body, thereby facilitating operation and replacing the syringe. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the use of the electric injection pump of the present application;

[0021] Figure 2 It is a schematic diagram of the structure of the electric injection pump of the present application;

[0022] Figure 3 It is a schematic diagram of the electric cylinder of the electric injection pump of the present application;

[0023] Figure 4 It is a sectional view of the local structure of the electric injection pump of the present application;

[0024] Figure 5 It is a schematic diagram of the electric injection pump of the present application; Figure 4 It is an enlarged view of position A;

[0025] Figure 6 It is a sectional view of the limiting column of the electric injection pump of the present application;

[0026] Figure 7 It is a schematic diagram of the fixed frame of the electric injection pump of the present application;

[0027] Figure 8 It is another perspective schematic diagram of the electric injection pump of the present application.

[0028] 1, pump body; 2, control panel; 3, fixed frame; 4, reinforcing rod; 5, reinforcing plate; 6, positioning seat; 7, V groove; 8, vertical T-shaped rod; 9, compression spring; 10, concave bracket; 11, cover plate; 12, extension plate; 13, connecting frame; 14, square rod; 15, anti-drop block; 16, horizontal T-shaped rod; 17, abutting spring; 18, limiting column; 19, rotating ring; 20, rotating column; 21, optimal arc groove; 22, sliding block; 23, return spring; 24, guide plate; 25, smooth end; 26, inclined guide rod; 27, flat guide rod; 28, push plate; 29, folding plate; 30, electric cylinder; 31, sliding port; 32, inclined plate; 33, inclined port; 34, moving frame; 35, pushing surface; 36, convex block; 37, lifting port; 38, syringe; 39, piston rod; 40, drainage tube; 41, folding plate. DETAILED DESCRIPTION

[0029] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0030] like Figures 1-8 An electric syringe pump is shown, including a pump body 1. A control panel 2 is fixedly embedded on the upper surface of the pump body 1. The control panel 2 is prior art and will not be described in detail. A fixed frame 3 is fixedly installed at the front end of the upper surface of the pump body 1. A positioning seat 6 is fixedly installed at the rear of the upper surface of the fixed frame 3. A concave frame 10 passes through the inner side of the fixed frame 3. An elastic mechanism is provided between the concave frame 10 and the side surface of the pump body 1. Limiting posts 18 are connected to the two upper ends of the concave frame 10 through a clamping mechanism. A rotating post 20 is rotatably connected to the outer surface of the limiting post 18 through a reset mechanism. A guide plate 24 is fixedly connected to one upper end of the concave frame 10 and the side away from the limiting post 18. A push plate 28 is connected to the rear end of one side surface of the pump body 1 through an adjusting mechanism. An inclined guide rod 26 is fixedly connected to one side of the push plate 28. A movable frame 34 is slidably connected to the front end of the upper surface of the fixed frame 3 along the oblique forward direction.

[0031] During installation, the syringe 38 is moved down, the lower end of the folding plate 41 is inserted into the inner side of the positioning seat 6, and the two limiting posts 18 are pressed on the upper ends of both sides of the folding plate 41.

[0032] As the injection proceeds, the push plate 28 moves forward, the inclined guide rod 26 pushes the guide plate 24 downward, and the two limiting posts 18 slide down along the edge of the folding plate 41.

[0033] like Figure 2 , Figure 4 As shown, a reinforcing rod 4 is fixedly connected to the rear end of one side of the fixed frame 3, and a reinforcing plate 5 is fixedly connected to one end of the reinforcing rod 4. The reinforcing plate 5 is fixedly installed on the side surface of the pump body 1. The reinforcing rod 4 and the reinforcing plate 5 can improve the stability of the fixed frame 3.

[0034] like Figure 4 As shown, the elastic mechanism includes a vertical T-shaped rod 8 fixedly connected to the lower corner of the reinforcing plate 5. A sleeve plate 11 is slidably fitted onto the upper end of the outer surface of the vertical T-shaped rod 8. The rear end of the sleeve plate 11 is fixedly connected to the upper end of the front surface of the concave frame 10. A compression spring 9 is fitted onto the outer surface of the vertical T-shaped rod 8, and the compression spring 9 is located on the lower surface of the sleeve plate 11. When the concave frame 10 moves downward relative to the vertical T-shaped rod 8, the sleeve plate 11 slides down relative to the surface of the vertical T-shaped rod 8, compressing the compression spring 9. When the inclined guide rod 26 is no longer in contact with the rear end of the guide plate 24, the concave frame 10 moves upward and resets under the elastic force of the compression spring 9.

[0035] like Figure 4As shown, the upper surface of the positioning seat 6 is provided with a V-shaped groove 7, which can be matched with the lower edge of the folding plate 41 to complete the insertion arrangement, and the operation is convenient.

[0036] As shown in Figure 4 , Figure 5 The abutting mechanism includes a square rod 14 fixedly connected to the front end of the side surface of the limiting column 18, and a connecting frame 13 fixedly connected to the upper end of the front surface of the concave frame 10. One end of the square rod 14 slidably penetrates the side surface of the connecting frame 13, and the upper and lower edges of the one end of the square rod 14 are fixedly connected with anti-disengagement blocks 15, respectively. The one end surface of the square rod 14 is fixedly connected with a horizontal T-shaped rod 16, the outer surface of the horizontal T-shaped rod 16 is sleeved with an abutting spring 17, one end of the horizontal T-shaped rod 16 slidably penetrates the inner wall of the connecting frame 13, and the abutting spring 17 is located on the inner side of the connecting frame 13. The arrangement of the anti-disengagement blocks 15 can prevent the end of the square rod 14 from disengaging from the inner side of the connecting frame 13. When the square rod 14 is transversely moved, the abutting spring 17 is pressed, and the elastic force of the abutting spring 17 can drive the limiting column 18 to abut against the side edge of the folding plate 41.

[0037] As shown in Figure 6 , the reset mechanism includes a rotating ring 19 fixedly connected to one end of the rotating column 20, the rotating ring 19 is rotatably sleeved on the outer surface of the limiting column 18, the inner wall of the rotating ring 19 is fixedly connected with a sliding block 22, the outer surface of the limiting column 18 and the inner side of the rotating ring 19 are provided with an arc groove 21, the sliding block 22 is slidably clamped into the inner side of the arc groove 21, and the inner side of the arc groove 21 and the upper and lower surfaces near the sliding block 22 are respectively provided with reset springs 23. The ends of the reset springs 23 are fixedly connected with the inner wall of the arc groove 21 and the surface of the sliding block 22, respectively, so as to ensure that the reset springs 23 pull or provide elastic force to drive the sliding block 22 to keep the initial position.

[0038] As shown in Figure 3 , Figure 4 The upper end of the concave frame 10 is provided with an extension plate 12, the rear surface of the extension plate 12 is fixedly connected with the front end of a guide plate 24, the rear end of the guide plate 24 is provided with a smooth end 25, and the lower end of an inclined guide rod 26 is fixedly connected with a flat guide rod 27. The smooth end 25 can reduce scratches when contacting the inclined guide rod 26, and the flat guide rod 27 plays a guiding role. When the guide plate 24 moves to the lowermost position, the lower surface of the flat guide rod 27 contacts the upper edge of the guide plate 24.

[0039] As shown in Figure 2 , Figure 3 , Figure 8As shown, the distance adjusting mechanism comprises an electric cylinder 30 fixedly installed inside the pump body 1, the telescopic end of the electric cylinder 30 is fixedly connected with a bent plate 29, a sliding port 31 is formed through the side surface of the pump body 1, the bent plate 29 slides through the inside of the sliding port 31, and one end of the bent plate 29 is fixedly connected with the side edge of a push plate 28. The electric cylinder 30 is a commonly used accessory in the injection pump, which can improve the injection precision.

[0040] As shown in the figure, Figure 7 The upper surface of the fixed frame 3 is fixedly connected with an inclined plate 32 at the front end, the upper surface of the inclined plate 32 is provided with an inclined port 33, the lower surface of a moving frame 34 is fixedly connected with a convex block 36, the convex block 36 slides through the inside of the inclined port 33, the upper surface of the moving frame 34 is provided with a pushing surface 35 at the rear edge, and the upper surface of the moving frame 34 is provided with a lifting port 37 at the front edge. Under the action of gravity, the moving frame 34 will slide obliquely backward relative to the inclined plate 32, and the convex block 36 will slide along the inside of the inclined port 33.

[0041] In the arrangement of the injection barrel 38, the lower end of the flip plate 41 is inserted into the V-shaped groove 7, and in the pressing process, the edge of the flip plate 41 will push the limiting column 18, and in the movement, the rotating column 20 will rotate relative to the limiting column 18 when contacting the surface of the injection barrel 38, the square bar 14 will move horizontally inside the connecting frame 13, and the spring 17 will be squeezed and tightly pressed. When the flip plate 41 is inserted into the V-shaped groove 7, the two limiting columns 18 are located relative to the upper ends of the two side edges of the flip plate 41, at this time, the positioning of the injection barrel 38 can be completed, so that the placement of the injection barrel 38 can be quickly performed, and the operation is convenient.

[0042] When the injection barrel 38 is pressed in, the drainage pipe 40 crosses the lifting port 37, the front end of the injection barrel 38 will touch the pushing surface 35, thereby pushing and moving the moving frame 34, the lifting port 37 moves forward and cooperates with the downward movement of the injection barrel 38, the rear end of the drainage pipe 40 is stretched and lifted, preventing the connection between the drainage pipe 40 and the injection barrel 38 from being excessively bent, thereby solving the problem of easy disconnection and leakage at the connection between the two, and facilitating stable infusion.

[0043] Through the contraction of the electric cylinder 30, the folding plate 29 moves backward along the inner side of the sliding port 31, and drives the push plate 28 to move backward, the push plate 28 pushes the piston rod 39, and pushes the liquid in the injection cylinder 38 out, so as to achieve the injection effect. When the piston rod 39 moves for a long distance, the inclined guide rod 26 will touch the smooth end 25, so that the guide plate 24 moves downward, and then the concave frame 10 moves downward, and the two limiting columns 18 will move downward along the edge of the folding plate 41. In this process, the square rod 14 will be pressed against the spring 17, until it moves to the lower end of the two sides of the folding plate 41. In the movement, the rotating column 20 will rotate relative to the limiting column 18 when it contacts the surface of the injection cylinder 38. When the rotating ring 19 rotates, the sliding block 22 slides along the inner side of the optimal arc groove 21, and presses the upper reset spring 23 and pulls the lower reset spring 23. When the rotating column 20 moves below the injection cylinder 38, the sliding block 22 can slide back under the elastic force or pulling force of the reset spring 23, so as to reset the rotating column 20. The rotating column 20 is still attached to the front surface of the folding plate 41, so that the push plate 28 can continue to move forward, and still can inject. Since the exposed part of the piston rod 39 is shorter at this time, the transverse moment generated is smaller, and the lower end of the folding plate 41 is not positioned by the V groove 7, so that stable injection can still be maintained. After the injection is completed, since the two limiting columns 18 are located at the lower edges of the two sides of the folding plate 41, the injection cylinder 38 can be taken off by lifting with one hand, without the need for the other hand to press the pump body 1, so as to bring convenience to the operation and facilitate the replacement of the injection cylinder 38.

[0044] The basic principles, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. An electric syringe pump, comprising a pump body (1), wherein a control panel (2) is fixedly mounted on the upper surface of the pump body (1), characterized in that: A fixed frame (3) is fixedly installed at the front end of the upper surface of the pump body (1). A positioning seat (6) is fixedly installed at the rear of the upper surface of the fixed frame (3). A concave frame (10) passes through the inner side of the fixed frame (3). An elastic mechanism is provided between the concave frame (10) and the side surface of the pump body (1). Limiting posts (18) are connected to the two upper ends of the concave frame (10) through a clamping mechanism. A rotating post (20) is rotatably connected to the outer surface of the limiting post (18) through a reset mechanism. A guide plate (24) is fixedly connected to one upper end of the concave frame (10) and to the side away from the limiting post (18). A push plate (28) is connected to the rear end of one side surface of the pump body (1) through a distance adjustment mechanism. An inclined guide rod (26) is fixedly connected to one side of the push plate (28). A moving frame (34) is slidably connected to the front end of the upper surface of the fixed frame (3) along the oblique forward direction. The syringe (38) moves down, and the lower end of the folding plate (41) is inserted into the inner side of the positioning seat (6), and the two limiting posts (18) press on the upper ends of both sides of the folding plate (41). The push plate (28) moves forward, and the inclined guide rod (26) pushes the guide plate (24) downward. The two limiting posts (18) slide down along the edge of the folding plate (41). An inclined plate (32) is fixedly connected to the front end of the upper surface of the fixed frame (3). An inclined opening (33) is provided on the upper surface of the inclined plate (32). A convex block (36) is fixedly connected to the lower surface of the movable frame (34). The convex block (36) slides through the inside of the inclined opening (33). A pushing surface (35) is provided on the rear side of the upper surface of the movable frame (34). A lifting opening (37) is provided on the front side of the upper surface of the movable frame (34).

2. An electric syringe pump according to claim 1, characterized in that: A reinforcing rod (4) is fixedly connected to one rear end of the fixed frame (3), and a reinforcing plate (5) is fixedly connected to one end of the reinforcing rod (4). The reinforcing plate (5) is fixedly installed on the side surface of the pump body (1).

3. An electric syringe pump according to claim 2, characterized in that: The elastic mechanism includes a vertical T-shaped rod (8) fixedly connected to the lower corner of the reinforcing plate (5). A sleeve plate (11) is slidably fitted on the upper end of the outer surface of the vertical T-shaped rod (8). The rear end of the sleeve plate (11) is fixedly connected to the upper end of the front surface of the concave frame (10). A compression spring (9) is fitted on the outer surface of the vertical T-shaped rod (8). The compression spring (9) is located on the lower surface of the sleeve plate (11).

4. An electric syringe pump according to claim 1, characterized in that: The upper surface of the positioning seat (6) is provided with a V-groove (7).

5. An electric syringe pump according to claim 1, characterized in that: The clamping mechanism includes a square rod (14) fixedly connected to the front end of one side surface of the limiting post (18), a connecting frame (13) fixedly connected to the upper end of the front surface of the concave frame (10), one end of the square rod (14) sliding through the side surface of the connecting frame (13), anti-detachment blocks (15) fixedly connected to the upper and lower edges of one end of the square rod (14), a horizontal T-shaped rod (16) fixedly connected to one end face of the square rod (14), a clamping spring (17) sleeved on the outer surface of the horizontal T-shaped rod (16), one end of the horizontal T-shaped rod (16) sliding through the inner wall of the connecting frame (13), and the clamping spring (17) located inside the connecting frame (13).

6. An electric syringe pump according to claim 1, characterized in that: The reset mechanism includes a rotating ring (19) fixedly connected to one end of the rotating column (20). The rotating ring (19) is rotatably sleeved on the outer surface of the limiting column (18). A slider (22) is fixedly connected to the inner wall of the rotating ring (19). An arc groove (21) is provided on the outer surface of the limiting column (18) and near the inner side of the rotating ring (19). The slider (22) slides into the inner side of the arc groove (21). Reset springs (23) are respectively provided on the inner side of the arc groove (21) and near the upper and lower surfaces of the slider (22).

7. An electric syringe pump according to claim 1, characterized in that: An extension plate (12) is provided on one side of the upper end of the concave frame (10). The rear surface of the extension plate (12) is fixedly connected to the front end of the guide plate (24). A smooth end (25) is provided at the rear end of the guide plate (24). A flat guide rod (27) is fixedly connected to the lower end of the inclined guide rod (26).

8. An electric syringe pump according to claim 1, characterized in that: The adjusting mechanism includes an electric cylinder (30) fixedly installed inside the pump body (1). The telescopic end of the electric cylinder (30) is fixedly connected to a bending plate (29). A sliding opening (31) is opened through one side surface of the pump body (1). The bending plate (29) slides through the inside of the sliding opening (31). One end of the bending plate (29) is fixedly connected to the side edge of a push plate (28).

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