A new type of infusion monitor

Abstract

This utility model relates to the field of medical equipment technology, and in particular to a novel infusion monitor for monitoring the infusion process of an infusion set. The infusion set includes a drip chamber, an upper infusion tubing section adjacent to and above the drip chamber, and a lower infusion tubing section adjacent to and below the drip chamber. The infusion monitor includes: a housing with a slot vertically arranged to hold the upper infusion tubing section, the drip chamber, and the lower infusion tubing section; a guide groove located behind the slot on the housing, the length direction of the guide groove being perpendicular to the length direction of the slot; and a pressure block assembly installed in the space behind the slot in the housing, which pushes and releases the upper infusion tubing in the slot to adjust the drip rate of the infusion set; the pressure block assembly includes a lead screw, a drive component for rotating the lead screw, and a pressure block threadedly assembled with the lead screw; the pressure block moves in the guide groove. This utility model can achieve precise control of the drip rate; at the same time, it is smaller in size and supports dense deployment in multiple beds.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, and in particular to a novel infusion monitor. Background Technology

[0002] Infusion monitoring equipment supports monitoring parameters such as fluid flow rate, drug dosage, and infusion time during intravenous infusion. It also has real-time alarm and automatic infusion stop functions, enabling timely detection of infusion abnormalities and the implementation of corresponding measures.

[0003] In the prior art, such as the patent document with publication number CN204619042U, a "drip monitor and automatic drip monitoring system" is specifically disclosed, including a housing, a main board 5, a motor 6, and a gear 7 located in the housing. The motor 6 is electrically connected to the main board 5 and connected to the gear 7. The housing is provided with a groove 14 for placing the drip tube 13. The motor 6 drives the rotation of the gear 7 to clamp or release the drip tube 13. In this patent document, on the one hand, the output shaft of the motor 6 is equipped with an output gear, which drives the gear 7 to rotate to clamp or release the infusion tube 13. After prolonged use, gaps easily appear between the output gear and the gear 7, resulting in low drip rate control accuracy of the infusion tube. On the other hand, when the motor 6 is mounted on the rear cover 3 of the housing, the axis of the motor 6 is perpendicular to the plane of the rear cover 3. In order to accommodate the motor, the thickness of the housing in the front-to-back direction must be increased, which inevitably makes the overall size of the infusion monitor too large, which is not conducive to the miniaturization design of the product. In some space-constrained scenarios such as ICUs and operating rooms, a thinner infusion monitor design can avoid collisions with equipment such as monitors and ventilators, and improve the efficiency of multi-device collaboration. While ensuring that existing infusion monitors can clamp or release the infusion tube and control the drip rate, how to provide an infusion monitor with high drip rate control accuracy and a small size is an urgent problem to be solved. Utility Model Content

[0004] The purpose of this invention is to provide a novel infusion monitor to solve the problems of low drip rate control accuracy, excessive thickness and volume in the front-to-back direction of existing infusion monitors.

[0005] The technical solution of this utility model is: a novel infusion monitor for monitoring the infusion process of an infusion set, wherein the infusion set includes a drip chamber, an upper infusion tubing section adjacent to and above the drip chamber, and a lower infusion tubing section adjacent to and below the drip chamber; the infusion monitor includes:

[0006] The housing has a slot in the vertical direction for embedding the upper infusion tubing, the drip chamber, and the lower infusion tubing; a guide groove is provided behind the slot in the housing, and the length direction of the guide groove is perpendicular to the length direction of the slot.

[0007] A pressure block assembly is installed in the space behind the slot in the housing to push and release the upper infusion tubing in the slot to adjust the drip rate of the infusion set; the pressure block assembly includes a lead screw, a drive component for rotating the lead screw, and a pressure block threadedly assembled with the lead screw; the pressure block moves in a guide groove;

[0008] The card slot has a through slot corresponding to the movement trajectory of the pressure block; the drive component is horizontally installed in the housing.

[0009] Preferably, the output end of the drive component is provided with a reduction gear set, and the lead screw is fixed on the output end of the reduction gear set;

[0010] The housing includes a front cover, a middle cover, and a rear cover. The back of the middle cover is provided with a mounting groove, and the pressure block assembly is installed in the mounting groove. The axis of the driving component is parallel to the plane of the middle cover.

[0011] Preferably, the slots include an upper tubing slot, a dripping bucket slot, and a lower tubing slot that are interconnected and respectively provided for the upper infusion tubing, the dripping bucket, and the lower infusion tubing.

[0012] The front cover has a plurality of inserts protruding from the end face of the middle cover, which are respectively inserted into the upper hose slot and the lower hose slot. The plurality of inserts are interference fit with the upper hose slot and the lower hose slot.

[0013] Preferably, a liquid absence sensor for detecting the presence or absence of liquid in the infusion set is installed on both side walls of the upper tubular slot, and multiple drip rate sensors are installed on both side walls of the dripping funnel slot.

[0014] Preferably, the front cover has a viewing window corresponding to the dripping bucket that is locked in the dripping bucket slot;

[0015] The front cover is equipped with a display screen and buttons.

[0016] Preferably, the front cover and the middle cover are hinged on one side so that the front cover can be opened or closed relative to the middle cover in a door-like manner;

[0017] The rear cover is fixed to the middle cover by fasteners.

[0018] Preferably, the upper end of the back cover is provided with a mounting slot for installing an infusion monitor, and the lower end of the back cover is provided with a charging electrode for wireless charging.

[0019] Preferably, a detection switch is installed on the front end face of the middle cover to detect whether the front cover is closed.

[0020] Compared with the prior art, the advantages of this utility model are:

[0021] This invention discloses a novel infusion monitor, comprising a pressure block assembly for pushing and releasing the upper infusion tubing in a slot to adjust the drip rate of the infusion set. The pressure block assembly includes a lead screw, a motor driving the lead screw to rotate, and a pressure block threadedly fitted to the lead screw, which moves in a guide groove. Through the cooperation of the lead screw drive and the pressure block, the upper infusion tubing can be linearly pushed, achieving precise control of the drip rate. The reduction gear set converts the high speed output of the motor into high torque through multi-stage reduction, enabling the lead screw to obtain more precise linear thrust, achieving micron-level adjustment of the squeezing amount of the upper infusion tubing, and effectively avoiding sudden changes in the drip rate. The gear drive has high rigidity and small backlash error, combined with the thread self-locking characteristic of the lead screw, ensuring that the pressure block can maintain a stable position after the drive stops, preventing the upper infusion tubing from rebounding and causing the drip rate to become uncontrollable. The motor is horizontally mounted in the housing, meaning the direction of the motor's output shaft is parallel to the plane of the middle cover. This horizontal mounting significantly reduces the thickness of the housing in the front-to-back direction, making the overall device lighter and facilitating the flexible installation or removal of the infusion monitor on the infusion stand. It is also smaller in size, supporting dense deployment in multiple beds, such as ICU wards or operating rooms, reducing the area occupied by a single device. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0023] Figure 1 This is a schematic diagram of the structure of a novel infusion monitor according to the present invention;

[0024] Figure 2 This is a bottom view of a novel infusion monitor according to the present invention;

[0025] Figure 3 This is a schematic diagram of the front cover and middle cover of the present invention when closed;

[0026] Figure 4 This is a schematic diagram of the structure of the back cover described in this utility model;

[0027] Figure 5 This is a schematic diagram of the back structure of the middle cover described in this utility model.

[0028] The components are: 1. Charging electrode, 2. Guide groove, 3. Lead screw, 4. Pressure block, 5. Motor, 6. Front cover, 7. Middle cover, 8. Rear cover, 9. Mounting groove, 10. Upper hose slot, 11. Drip funnel slot, 12. Lower hose slot, 13. Insert block, 14. Photoelectric sensor, 15. Infrared sensor, 16. Viewing window, 17. Detection switch, 18. Hanging groove. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to specific embodiments:

[0030] In the description of the utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0031] like Figure 1 , Figure 5As shown, a novel infusion monitor is used to monitor the infusion process of an infusion set. The infusion set includes a drip chamber, an upper infusion tubing section adjacent to and above the drip chamber, and a lower infusion tubing section adjacent to and below the drip chamber. The infusion monitor includes: a housing with a slot vertically arranged to hold the upper infusion tubing section, the drip chamber, and the lower infusion tubing section; a guide groove 2 located behind the slot on the housing, the length direction of the guide groove 2 being perpendicular to the length direction of the slot; a pressure block assembly installed in the space behind the slot in the housing, which pushes and releases the upper infusion tubing in the slot to adjust the drip rate of the infusion set; the pressure block assembly includes a lead screw 3 and a drive component for rotating the lead screw 3. A pressure block 4 is threadedly assembled with a lead screw 3; the pressure block 4 moves in a guide groove 2, the guide groove 2 is designed to ensure the stability of the movement trajectory of the pressure block 4; a through slot is provided on the slot corresponding to the movement trajectory of the pressure block 4; through the transmission of the lead screw 3 and the cooperation of the pressure block 4, the upper infusion tubing can be linearly pushed, achieving precise control of the drip rate; the drive component is horizontally installed in the housing, in this embodiment the drive component is a motor 5. In this embodiment, horizontal installation means, as shown in 5, the direction of the output shaft of the motor 5 is parallel to the plane where the middle cover 7 is located. The horizontal installation of the motor 5 significantly reduces the thickness of the housing in the front and rear directions, making the overall equipment lighter and facilitating the flexible installation or removal of the infusion monitor on the infusion stand. A reduction gear set is provided at the output end of the drive component, and the lead screw 3 is fixed on the output end of the reduction gear set; the housing includes a front cover 6, a middle cover 7, and a rear cover 8. A mounting groove 9 is provided on the back of the middle cover 7, the pressure block assembly is installed in the mounting groove 9, and the axis of the drive component is parallel to the plane where the middle cover 7 is located. The reduction gear set converts the high speed output of motor 5 into high torque through multi-stage reduction, enabling lead screw 3 to obtain more precise linear thrust and achieve micron-level adjustment of the squeezing amount of the upper infusion tubing, effectively avoiding sudden changes in drip rate; the gear transmission has high rigidity and small backlash error, combined with the thread self-locking characteristic of lead screw 3, ensuring that pressure block 4 can still maintain a stable position after the drive stops, preventing the upper infusion tubing from rebounding and causing drip rate loss of control.

[0032] like Figure 1 As shown, the slots include interconnected upper tubing slot 10, drip chamber slot 11, and lower tubing slot 12, respectively corresponding to the upper infusion tubing, drip chamber, and lower infusion tubing. The front cover 6 has multiple inserts 13 protruding from its end face facing the middle cover 7, which respectively engage with the upper tubing slot 10 and lower tubing slot 12. All inserts 13 are interference-fitted with the upper tubing slot 10 and lower tubing slot 12. The interference fit between the inserts 13 and the slots on the front cover 6 requires no additional fasteners. The slots and inserts 13 form a closed fit between the front cover 6 and the middle cover 7, allowing medical personnel to easily install the infusion set by pressing the front cover 6 with one hand.

[0033] Liquid absence sensors are installed on both sides of the upper tubular slot 10 to detect the presence or absence of liquid in the infusion set. In this embodiment, the liquid absence sensor is a photoelectric sensor 14. The photoelectric sensor 14 can identify the presence or absence of liquid in the infusion set in real time by non-contactly detecting changes in the refractive index of the liquid. Multiple drip rate sensors are installed on both sides of the drip funnel slot 11. In this embodiment, the drip rate sensor is an infrared sensor 15. The infrared sensor 15 detects the falling droplets and measures the drip rate by counting pulse signals and calculating the interval time.

[0034] The front cover 6 has a viewing window 16 corresponding to the drip chamber slot 11, allowing real-time observation of the liquid level and droplet descent without frequent opening. The front cover 6 also features a display screen and buttons. The front cover 6 and the middle cover 7 are hinged on one side, allowing the front cover 6 to open or close relative to the middle cover 7 like a door. The rear cover 8 is fixed to the middle cover 7 with fasteners. The upper part of the back of the rear cover 8 has a mounting slot 18 for an infusion monitor, which is then mounted in a back clip that secures to the infusion rod. The lower part of the back of the rear cover 8 has a charging electrode 1 for wireless charging. A detection switch 17 is installed on the front face of the middle cover 7 to detect whether the front cover 6 is closed; when the front cover 6 is closed, the infusion monitor will display a closed door indicator.

[0035] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore, all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within this utility model.

Claims

1. A novel infusion monitor for monitoring the infusion process of an infusion set, the infusion set comprising a drip chamber, an upper infusion tubing section adjacent to and above the drip chamber, and a lower infusion tubing section adjacent to and below the drip chamber, characterized in that, The infusion monitor includes: The housing has a slot in the vertical direction for embedding the upper infusion tubing, the drip chamber, and the lower infusion tubing; a guide groove is provided behind the slot in the housing, and the length direction of the guide groove is perpendicular to the length direction of the slot. A pressure block assembly is installed in the space behind the slot in the housing to push and release the upper infusion tubing in the slot to adjust the drip rate of the infusion set; the pressure block assembly includes a lead screw, a drive component for rotating the lead screw, and a pressure block threadedly assembled with the lead screw; the pressure block moves in a guide groove; The card slot has a through slot corresponding to the movement trajectory of the pressure block; the drive component is horizontally installed in the housing.

2. The novel infusion monitor according to claim 1, characterized in that: The output end of the drive unit is provided with a reduction gear set, and the lead screw is fixed on the output end of the reduction gear set; The housing includes a front cover, a middle cover, and a rear cover. The back of the middle cover is provided with a mounting groove, and the pressure block assembly is installed in the mounting groove. The axis of the driving component is parallel to the plane of the middle cover.

3. The novel infusion monitor according to claim 2, characterized in that: The slots include interconnected upper tubing slots, dripping funnel slots, and lower tubing slots respectively corresponding to the upper infusion tubing, dripping funnel, and lower infusion tubing. The front cover has a plurality of inserts protruding from the end face of the middle cover, which are respectively inserted into the upper hose slot and the lower hose slot. The plurality of inserts are interference fit with the upper hose slot and the lower hose slot.

4. A novel infusion monitor according to claim 3, characterized in that: The upper tubular slot is equipped with a liquid absence sensor on both sides to detect the presence or absence of liquid in the infusion set, and multiple drip rate sensors are installed on both sides of the dripping funnel slot.

5. A novel infusion monitor according to claim 2, characterized in that: The front cover has a viewing window corresponding to the dripping bucket that is locked in the dripping bucket slot; The front cover is equipped with a display screen and buttons.

6. A novel infusion monitor according to claim 2, characterized in that: The front cover and the middle cover are hinged on one side so that the front cover can be opened or closed relative to the middle cover in a door-like manner. The rear cover is fixed to the middle cover by fasteners.

7. A novel infusion monitor according to claim 2, characterized in that: The upper part of the back cover has a slot for installing an infusion monitor, and the lower part of the back cover has a charging electrode for wireless charging.

8. A novel infusion monitor according to claim 2, characterized in that: A detection switch is installed on the front end face of the middle cover to detect whether the front cover is closed.

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