A syringe pump with tubing occlusion warning

Abstract

The utility model discloses an injection pump with pipeline blockage early warning, including control mechanism, retaining mechanism and injection mechanism, control includes control host computer, electric connection in the back end of control host computer's connecting line, the retaining mechanism includes with the base of electric connection of another end of connecting line, in the utility model, through setting the screw block between the middle slider and lower slider to replace both with screw rod thread connection, and the front end of screw block is supported in the inside of middle slider and lower slider, make screw block advance when will promote middle slider and lower slider advance, realize equivalent replacement, therefore when pipeline blockage, middle slider will be unable to promote syringe piston advance, at this time because screw rod continues to rotate, and screw block cannot advance, will lead to screw rod backward movement, until the rear end of screw rod is supported on the limiting piece, trigger alarm, at the same time, driven gear and driving gear separate, cannot continue to drive, stop injection, effectively guarantee the security of use.

Description

Technical Field

[0001] This utility model relates to the field of syringe pump technology, specifically to a syringe pump with a pipeline blockage warning function. Background Technology

[0002] An infusion pump is a device used to push the piston of a syringe to inject intravenously, achieving high-precision, stable, and pulsation-free fluid delivery. It allows for timed and quantitative administration, with the speed and dosage adjusted as needed based on the patient's condition. It can accurately, safely, and effectively assist medical staff in emergency treatment. However, existing infusion pumps require a pressure sensor connected to the tubing for pressure monitoring to prevent continued injection even when the tubing is blocked, which could lead to tubing rupture. However, the pressure sensor cannot monitor the entire tubing; if the pressure increases and the location moves away from the sensor, it becomes undetectable, posing a problem. Therefore, this paper proposes an infusion pump with a tubing blockage warning system. Utility Model Content

[0003] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0004] Therefore, the technical solution adopted by this utility model is as follows:

[0005] An injection pump with a pipeline blockage warning includes a control mechanism, a retaining mechanism, and an injection mechanism. The control mechanism includes a control host and a connection line electrically connected to the rear end of the control host. The retaining mechanism includes a base electrically connected to the other end of the connection line, a fixing block fixedly installed on the top of the front end of the base, a fixing buckle threadedly connected to one side of the groove in the middle of the fixing block, fixing angle brackets slidably connected to both ends of the fixing block, a middle slider slidably connected to the middle of the base, a fixing plate assembled at the front end of the middle slider, and fixing bolts for fixing the position of the fixing plate. The injection mechanism includes a motor fixedly installed at the rear end of the base, a driving gear connected to the output shaft of the motor, a driven gear meshing with the driving gear, a screw fixedly installed in the middle of the driven gear, and a screw block threadedly connected to the screw. The screw block slidably engages with the middle slider. The rear end of the screw extends through the base to the outside, and a limiting component is fixedly installed on the base at the position corresponding to the rear end of the screw.

[0006] Preferably, the middle slider has a circular hole in the middle, which is slidably connected to the central shaft of the drive gear, and the bottom of the middle slider is connected to a lower slider, which is rotatably engaged with the bottom end of the fixing bolt.

[0007] Preferably, a protective shell is fixedly installed at the rear end of the base where the motor is located, and the motor is located inside the protective shell.

[0008] Preferably, a connecting groove is provided at the position of the connecting screw of the fixing block, the connecting groove is movably sleeved with the screw, and a tension spring is provided inside the connecting groove to support the end of the screw.

[0009] Preferably, the screw block consists of two parts, an upper part and a lower part, that fit together with the middle slider and the lower slider. Each part of the screw block is provided with a locking rod that slides onto the corresponding middle slider and the lower slider.

[0010] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0011] In this invention, a screw block is installed between the middle and lower sliders to replace their threaded connection with the screw rod. The front end of the screw block abuts against the inside of the middle and lower sliders, so that when the screw block moves forward, it pushes the middle and lower sliders forward, achieving equivalent replacement. Therefore, when the pipeline is blocked, the middle slider will be unable to push the syringe piston forward. At this time, since the screw rod continues to rotate and the screw block cannot move forward, the screw rod will move backward until the rear end of the screw rod abuts against the limiting member, triggering an alarm. At the same time, the driven gear separates from the driving gear, and cannot continue to transmit power, stopping the injection and effectively ensuring the safety of use. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of an embodiment of the present invention;

[0013] Figure 2 This is a cross-sectional schematic diagram of the retaining mechanism according to an embodiment of the present invention;

[0014] Figure 3 This is a schematic diagram of the sliding block of one embodiment of the present invention;

[0015] Figure 4 This is a schematic diagram of a screw block according to an embodiment of the present invention.

[0016] Figure label:

[0017] 110. Control host; 120. Connecting lines;

[0018] 210. Base; 211. Protective shell; 212. Limiting component; 220. Fixing block; 221. Connecting groove; 230. Fixing buckle; 240. Fixing angle bracket; 250. Middle slider; 251. Lower slider; 252. Round hole; 260. Fixing plate; 270. Fixing bolt;

[0019] 310. Motor; 320. Drive gear; 330. Driven gear; 340. Screw; 350. Screw block. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0021] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing an injection pump with a pipeline blockage warning function.

[0022] Example:

[0023] Combination Figure 1-4 As shown, this utility model provides an injection pump with a pipeline blockage warning system, including a control mechanism, a retaining mechanism, and an injection mechanism. The control system includes a control host 110 and a connection line 120 electrically connected to the rear end of the control host 110. The retaining mechanism includes a base 210 electrically connected to the other end of the connection line 120, a fixing block 220 fixedly installed on the top front end of the base 210, a fixing buckle 230 threadedly connected to one side of the groove in the middle of the fixing block 220, fixing angle brackets 240 slidably connected to both ends of the fixing block 220, a middle slider 250 slidably connected to the middle of the base 210, a fixing plate 260 assembled at the front end of the middle slider 250, and fixing bolts 270 for fixing the position of the fixing plate 260. The injection mechanism includes a motor 310 fixedly installed at the rear end of the base 210, a drive gear 320 connected to the output shaft of the motor 310, a driven gear 330 meshing with the drive gear 320, a screw 340 fixedly installed in the middle of the driven gear 330, and a screw block threadedly connected to the screw 340. 350, the screw block 350 and the middle slider 250 are slidably sleeved together. The rear end of the screw 340 extends through the base 210 to the outside. A limiting member 212 is fixedly installed on the base 210 at the position corresponding to the rear end of the screw 340. A protective shell 211 is fixedly installed at the position of the motor 310 at the rear end of the base 210. The motor 310 is located inside the protective shell 211. A connecting groove 221 is opened at the position where the fixing block 220 connects to the screw 340. The connecting groove 221 is movably sleeved with the screw 340. 1. An internal tension spring is provided to hold the end of the screw 340. A round hole 252 is opened in the middle of the middle slider 250. The round hole 252 is slidably connected to the central shaft of the drive gear 320. The bottom of the middle slider 250 is connected to the lower slider 251. The lower slider 251 is rotatably engaged with the bottom end of the fixing bolt 270. The screw block 350 is the upper and lower parts that fit the middle slider 250 and the lower slider 251. Both parts of the screw block 350 are provided with a locking rod that is slidably sleeved on the corresponding middle slider 250 and lower slider 251.

[0024] Specifically, the rear end of the screw 340 passes through the base 210, and a limiting member 212 is set at the penetration position, so that the screw 340 will abut against the limiting member 212 when it moves backward. Therefore, when the limiting member 212 senses pressure, it will send a signal to the receiving module inside the control host 110, and the control host 110 will start an alarm. At the same time, the driven gear 330 will separate from the driving gear 320 and stop driving, stopping the push on the syringe piston, avoiding continuous push that could cause the pipeline to rupture or the connection to leak, thus improving the safety of the device.

[0025] The working principle and usage process of this utility model are as follows: First, in the standby state, the syringe is placed on the fixing block 220 and fixed by the fixing buckle 230 and the fixing angle bracket 240. After fixing, the position of the middle slider 250 is adjusted until the fixing plate 260 can be fixed to the end of the syringe piston. After installation, the motor 310 can be started to rotate by controlling the host 110. Through the transmission of the driven gear 330, the screw 340 is driven to rotate, which drives the screw block 350 to move forward. Thus, the middle slider 250 pushes the syringe piston forward to start injection.

[0026] In addition, when the injection tube becomes blocked, the middle slider 250 cannot move forward, so the screw 340 will retract until it is stopped on the limit member 212, triggering an alarm to remind the staff. Finally, the device can be maintained regularly.

[0027] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A syringe pump with a pipeline blockage warning function, characterized in that, include: Control mechanism, retention mechanism, and injection mechanism; The control system includes a control host (110) and a connection line (120) electrically connected to the rear end of the control host (110); The fixing mechanism includes a base (210) electrically connected to the other end of the connecting line (120), a fixing block (220) fixedly installed on the top of the front end of the base (210), a fixing buckle (230) threadedly connected to one side of the groove in the middle of the fixing block (220), fixing angle brackets (240) slidably connected to both ends of the fixing block (220), a middle slider (250) slidably connected to the middle of the base (210), a fixing plate (260) assembled on the front end of the middle slider (250), and fixing bolts (270) for fixing the position of the fixing plate (260); The injection mechanism includes a motor (310) fixedly installed at the rear end of the base (210), a drive gear (320) connected to the output shaft of the motor (310), a driven gear (330) meshing with the drive gear (320), a screw (340) fixedly installed in the middle of the driven gear (330), and a screw block (350) threadedly connected to the screw (340). The screw block (350) is slidably sleeved with the middle slider (250), the rear end of the screw (340) extends through the base (210) to the outside, and a limiting member (212) is fixedly installed on the base (210) at the position corresponding to the rear end of the screw (340).

2. The syringe pump with pipeline blockage warning according to claim 1, characterized in that, The middle slider (250) has a circular hole (252) in the middle, which is slidably connected to the central shaft of the drive gear (320). The bottom of the middle slider (250) is connected to a lower slider (251), which is rotatably engaged with the bottom end of the fixing bolt (270).

3. The syringe pump with pipeline blockage warning according to claim 1, characterized in that, A protective shell (211) is fixedly installed at the rear end of the base (210) where the motor (310) is located, and the motor (310) is located inside the protective shell (211).

4. A syringe pump with a pipeline blockage warning according to claim 1, characterized in that, The fixing block (220) has a connecting groove (221) at the position of the connecting screw (340). The connecting groove (221) is movably connected to the screw (340), and a tension spring is provided inside the connecting groove (221) to support the end of the screw (340).

5. A syringe pump with a pipeline blockage warning according to claim 1, characterized in that, The screw block (350) consists of two parts that fit the middle slider (250) and the lower slider (251). Both parts of the screw block (350) are provided with locking rods that slide and fit onto the corresponding middle slider (250) and lower slider (251).

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