Wheel pressure type high pressure injector based on magnetic force to load and unload infusion tube

Abstract

The application discloses a wheel pressure type high-pressure injector based on magnetic loading and unloading of infusion tubes, relates to medical devices, and aims at the problem of low space utilization in the prior art. The pipeline panel is provided with a groove at the input port of the wheel pressure mechanism, an electromagnetic module and a guide through hole are arranged at the bottom surface of the groove, and a sliding block is arranged in the groove. A supporting rod is extended downward from the bottom of the sliding block, a magnetic attraction piece extending in parallel with the pipeline panel is arranged at the lower end of the supporting rod, a U-shaped groove with an opening facing upward is arranged on the side of the sliding block close to the pipe groove, the supporting rod extends out of the lower end surface of the pipeline panel through the guide through hole, the positions of the electromagnetic module and the magnetic attraction piece are adapted to each other and are used in cooperation, and the U-shaped groove and the pipe groove extend in the same line. The electromagnetic attraction design can be used without configuring an additional motor drive, and the space utilization is improved. Meanwhile, the manufacturing cost of the electromagnetic module is far lower than that of the motor.

Description

Technical Field

[0001] This invention relates to medical devices, and more particularly to a wheel-type high-pressure injector based on magnetic loading and unloading of an infusion tube. Background Technology

[0002] The prior art, CN113855934A, discloses a high-pressure injector with a safe catheter disassembly and assembly method. This method uses two push-pull rods to adjust the relative position between the infusion tubing and the pressure wheel mechanism, allowing the infusion tubing to be guided into or out of the pressure wheel mechanism under the control of the two rods. This method has the following disadvantages: firstly, it requires manual control; secondly, it occupies a significant amount of internal space, affecting the setup and cost of other internal components. Specifically, the large space requirement stems from the fact that the manual control point is located on the outside of the high-pressure injector, while the controlled position is relatively close to the middle of the injector, almost spanning half the width of the machine.

[0003] ZL2023220816483 describes a high-pressure injector with automatic tubing loading and unloading. Through automated program control, the control output point and the controlled point are essentially the same, resulting in low space occupancy. Although the power mechanism driving the turntable contains a high-power motor, the injection precision control requirements are very high, and power cannot be drawn from the original motor. Therefore, to provide power to the guide auger, an additional motor is needed, increasing costs. Furthermore, the newly configured motor also occupies some internal space, resulting in low internal space utilization. Summary of the Invention

[0004] The purpose of this invention is to provide a high-pressure injector based on magnetic loading and unloading of infusion tubing, so as to solve the problems existing in the prior art.

[0005] The present invention discloses a wheel-pressure high-pressure injector based on magnetic loading and unloading of infusion tubing, comprising a tubing panel disposed on the top, wherein a tubing groove and a wheel-pressure mechanism are provided in the tubing panel; the inlet section and outlet section of the tubing groove are respectively connected to the input port and output port of the wheel-pressure mechanism;

[0006] The wheel pressing mechanism includes a turntable and a pressing tube base disposed on the outside of the turntable; the turntable is provided with pressing wheels for cooperating with the pressing tube base to squeeze the infusion tubing, and also with guide wheels for preventing the infusion tubing from dislodging from the pressing track;

[0007] The pipeline panel has a groove at the input port of the wheel pressing mechanism, an electromagnetic module and a guide hole are provided on the bottom surface of the groove, and a slider is provided in the groove;

[0008] A rod extends downward from the bottom of the slider, and a magnetic absorbing piece extends parallel to the pipe panel at the lower end of the rod; a U-shaped groove with an upward opening is provided on the side of the slider near the pipe groove.

[0009] The support rod extends through the guide hole to the lower end face of the pipeline panel. The electromagnetic module and the magnetic absorbing plate are positioned and used in conjunction. The U-shaped groove extends collinearly with the pipe groove.

[0010] The slider is equipped with an adjustable blocking mechanism for blocking or releasing the infusion tubing located in the U-shaped groove.

[0011] The blocking mechanism includes a sliding plate and a sliding groove that are adapted to each other; the sliding groove is located inside the slider, extends in a direction parallel to the upper surface of the slider, and the opening of the sliding groove faces the U-shaped groove; the sliding plate is disposed inside the sliding groove and can slide horizontally inside the sliding groove.

[0012] A lever is provided on one side of the slider.

[0013] The upper surface of the slider is provided with a guide groove that extends through to the slide groove. The extension direction of the guide groove is consistent with the sliding direction of the slider. The guide groove is used for the sliding of the lever.

[0014] The wheel-type high-pressure injector based on magnetic infusion tubing described in this invention has the advantage that the electromagnetic attraction design eliminates the need for an additional motor drive, thus improving space utilization. Furthermore, the manufacturing cost of the electromagnetic module is significantly lower than that of a motor. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the wheel-type high-pressure injector described in this invention.

[0016] Figure 2 yes Figure 1 The enlarged view at point A shows the slider in a semi-closed state.

[0017] Figure 3 yes Figure 2 A schematic diagram of the structure after the slider is hidden.

[0018] Figure 4 This is a schematic diagram of the slider.

[0019] Figure 5 This is a schematic diagram of the slider's structure.

[0020] Figure 6 This is a schematic diagram of the slider when it is fully closed.

[0021] Figure 7 This is a schematic diagram showing the state after the slider is fully open and the slider has moved upward.

[0022] Figure 8 yes Figure 7 Enlarged view of point B in the middle.

[0023] Figure label:

[0024] 10-Pipe panel, 11-Pipe groove, 12-Pipe pressing base, 13-Turntable, 14-Guide wheel, 15-Pressing wheel, 16-Groove, 17-Electromagnetic module, 18-Guide through hole;

[0025] 21-Slider, 22-Groove, 23-Guide Groove, 24-U-groove, 25-Support rod, 26-Magnetic plate;

[0026] 31-Slider, 32-Lever. Detailed Implementation

[0027] like Figures 1 to 5 As shown, the high-pressure injector based on magnetic loading and unloading of infusion tubing described in this invention includes a tubing panel 10 disposed on the top, a tubing groove 11 and a wheel pressing mechanism disposed in the tubing panel 10. The feed section and the discharge section of the tubing groove 11 are respectively connected to the input port and the output port of the wheel pressing mechanism.

[0028] The wheel pressing mechanism includes a turntable 13 and a tube pressing base 12 disposed on the outside of the turntable 13. The turntable 13 is provided with pressing wheels 15 for cooperating with the tube pressing base 12 to press the infusion tubing, and also with guide wheels 14 for preventing the infusion tubing from dislodging from the pressing track.

[0029] The pipeline panel 10 has a groove 16 at the input port of the wheel pressing mechanism, an electromagnetic module 17 and a guide through hole 18 on the bottom surface of the groove 16, and a slider 21 inside the groove 16.

[0030] A rod 25 extends downward from the bottom of the slider 21, and a magnetic absorbing piece 26 extending parallel to the pipeline panel 10 is provided at the lower end of the rod 25. A U-shaped groove 24 with an upward opening is provided on the side of the slider 21 near the pipeline groove 11. The length of the rod 25 is greater than the sum of the thickness of the pipeline panel 10 and the diameter of the infusion tubing.

[0031] The support rod 25 extends through the guide hole 18 and out of the lower end face of the pipeline panel 10. The electromagnetic module 17 and the magnetic absorbing piece 26 are positioned and used in conjunction. The U-shaped groove 24 extends collinearly with the pipe groove 11.

[0032] The slider 21 is equipped with an adjustable blocking mechanism for blocking or releasing the infusion tubing located in the U-shaped groove 24.

[0033] The blocking mechanism includes a sliding plate 31 and a sliding groove 22 that are adapted to each other. The sliding groove 22 is located inside the slider 21, extends in a direction parallel to the upper surface of the slider 21, and the opening of the sliding groove 22 faces the U-shaped groove 24. The sliding plate 31 is disposed in the sliding groove 22 and can slide horizontally within the sliding groove 22.

[0034] A lever 32 is provided on one side of the slider 31.

[0035] The upper surface of the slider 21 is provided with a guide groove 23 that extends through the slide groove 22. The extension direction of the guide groove 23 is consistent with the sliding direction of the slider 31. The guide groove 23 is used for the sliding of the lever 32.

[0036] The working principle of the wheel-pressure high-pressure injector based on magnetic loading and unloading of infusion tubing described in this invention is as follows:

[0037] Electromagnetic module 17 is activated on demand under the control of the electronic control program. When electromagnetic module 17 is not activated, slider 21 naturally falls into groove 16, as... Figure 6 As shown, the U-shaped groove 24 is located in the plane of the pressing track.

[0038] When the electromagnetic module 17 is activated, it generates a magnetic field that attracts the compatible magnetic chuck 26. The magnetic chuck 26 is attracted by the electromagnetic module 17 and moves upward, causing the slider 21 to move upward simultaneously. At this time, the U-shaped groove 24 leaves the plane of the pressing track, as shown... Figure 7 and Figure 8 As shown.

[0039] Sliding plate 31 can close or release U-groove 24 as needed, such as when closing. Figure 6 As shown, during release as Figure 8 As shown.

[0040] When medical staff need to insert the infusion tubing from outside the machine, the control slider 21 moves upward, and the sliding plate 31 releases the U-shaped groove 24. The infusion tubing is then inserted, and the sliding plate 31 closes the U-shaped groove 24. The control slider 21 moves downward, and the infusion tubing is guided into the pressing track by the guide wheel 14.

[0041] Similarly, when the infusion tubing needs to be removed from the machine, the control slider 21 moves upward, and the infusion tubing gradually moves away from the guide wheel 14, thus disengaging from the pressing track. The translational slider 31 releases the U-shaped groove 24, and the infusion tubing is removed. The control slider 21 moves downward, returning to its original state.

[0042] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this invention.

Claims

1. A high-pressure injector based on magnetic loading and unloading of infusion tubing, comprising a tubing panel (10) disposed on the top, wherein a tubing groove (11) and a wheel pressing mechanism are provided in the tubing panel (10); the feed section and the discharge section of the tubing groove (11) are respectively connected to the input port and the output port of the wheel pressing mechanism; The wheel pressing mechanism includes a turntable (13) and a tube pressing base (12) disposed on the outside of the turntable (13); the turntable (13) is provided with pressing wheels (15) for cooperating with the tube pressing base (12) to squeeze the infusion tubing, and is also provided with guide wheels (14) for preventing the infusion tubing from dislodging from the pressing track. Its features are, The pipeline panel (10) has a groove (16) at the input port of the wheel pressing mechanism, an electromagnetic module (17) and a guide through hole (18) on the bottom surface of the groove (16), and a slider (21) in the groove (16). A rod (25) extends downward from the bottom of the slider (21), and a magnetic absorbing piece (26) extending parallel to the pipe panel (10) is provided at the lower end of the rod (25); a U-shaped groove (24) with an upward opening is provided on the side of the slider (21) near the pipe groove (11). The support rod (25) extends through the guide hole (18) and out of the lower end face of the pipeline panel (10). The electromagnetic module (17) and the magnetic absorbing plate (26) are positioned and used in conjunction. The U-shaped groove (24) extends collinearly with the pipe groove (11). The slider (21) is equipped with an adjustable blocking mechanism for blocking or releasing the infusion tubing located in the U-shaped groove (24); The blocking mechanism includes a sliding plate (31) and a sliding groove (22) that are adapted to each other; the sliding groove (22) is located inside the slider (21), and its extension direction is parallel to the upper end face of the slider (21), and the opening of the sliding groove (22) faces the U-shaped groove (24); the sliding plate (31) is arranged inside the sliding groove (22) and can slide horizontally inside the sliding groove (22); A lever (32) is provided on one side of the slider (31); The upper surface of the slider (21) is provided with a guide groove (23) that extends through to the slide groove (22). The extension direction of the guide groove (23) is consistent with the sliding direction of the slider (31). The guide groove (23) is used for the sliding of the lever (32).

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