Drip rate infusion controller

Abstract

The present invention discloses a dripping rate infusion controller, including a shell and a dripping detection structure, wherein a mounting opening penetrating the thickness direction of the shell is provided at the middle position of one end of the shell, and the mounting opening matches the end of the dripping bucket for inserting one end of the dripping bucket; an abutting block and a crimping block are provided at the open end of the mounting opening and spaced along the thickness direction of the shell, and the two ends of the abutting block are respectively connected to the shell and can be supported against one side of the dripping bucket in the mounting opening; one end of the crimping block is hinged to the shell, and the other end of the crimping block is rotated toward the shell and can be clamped to the shell through a clamping structure, and the inner side of the crimping block is supported against one side of the dripping bucket to clamp the dripping bucket; the dripping detection structure includes an infrared detection structure and a capacitance detection structure installed at the open position of the mounting opening, and the detection ends of the infrared detection structure and the capacitance detection structure can be respectively arranged facing the dripping bucket in the mounting opening. The present invention has the advantages of being more convenient to install and use, and more accurate in detecting the dripping rate of the dripping liquid.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to a drip-rate infusion controller. Background Art

[0002] Intravenous infusion is a method of injecting a large amount of sterile liquid, electrolytes, and drugs into the body through the veins using the principles of atmospheric pressure and liquid static pressure. During intravenous infusion, medical staff need to adjust the infusion drip rate according to the patient's condition and the type of infused drug.

[0003] At present, medical staff usually judge the drip rate of infusion based on experience and adjust and control it. Such an adjustment method is highly subjective, with large errors, and it is difficult to accurately meet the scientific infusion standard. In order to solve the above problems, in the prior art, a Chinese patent application (CN111803760A) discloses an intelligent infusion control device; however, the above structure has the disadvantages of unreasonable design, unreasonable and compact arrangement of infrared sensors and capacitive liquid level sensors, which makes this structure occupy a large space and inconvenient to use. In addition, in the above patent application, the position where the infrared sensor and the capacitive liquid level sensor are arranged is not closed enough, so that both are easily disturbed by the external environment, resulting in the detected drip rate being inaccurate. Chinese patent (CN212914094U) discloses a portable infusion control device; in this structure, the card-connected installation part structure used to cooperate with the drip bucket is arranged on one side of the whole, so that after being installed in the drip bucket, the entire structure is tilted under the influence of gravity, and the drip bucket will also be deflected, which will also affect the detection of dripping. Moreover, the infrared detection part and the capacitance detection part are arranged at intervals in the vertical direction, and the detection positions are different. When the droplets fall, once they come into contact with the tube wall, the droplets will disperse, which will cause errors in the detection of the two.

[0004] Therefore, how to research and design a drip-rate infusion controller with a more compact and reasonable structural design, which can be more convenient to install and use, and can more accurately detect the dripping rate, has become a technical problem to be solved. Summary of the invention

[0005] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is how to provide a drip rate infusion controller which has a more compact and reasonable structural design, can be more convenient to install and use, and can detect the drip rate more accurately.

[0006] To achieve the above-mentioned purpose, the present invention provides a drip-rate infusion controller, including a shell and a drip detection structure, which is characterized in that the shell as a whole is designed as a flat box structure, and a mounting opening that runs through its thickness direction is provided at the lateral middle position of one end of the shell, and the mounting opening matches the end of the drip bucket for the placement of one end of the drip bucket; an abutment block and a crimping block are provided at the open end of the mounting opening and are spaced apart along the thickness direction of the shell, and the two ends of the abutment block are respectively connected to the shell and can be supported on one side of the drip bucket in the mounting opening; one end of the crimping block is hinged to the shell, and the other end of the crimping block can be rotated toward the shell and can be clamped to the shell through the clamping structure, and the inner side of the crimping block is supported on one side of the drip bucket to clamp the drip bucket; the drip detection structure includes an infrared detection structure and a capacitive detection structure installed at the open position of the mounting opening, and the detection ends of the infrared detection structure and the capacitive detection structure can be respectively arranged facing the drip bucket in the mounting opening.

[0007] In this way, when the above-mentioned drip-speed infusion controller is in use, the lower end of the drip bucket is correspondingly placed in the mounting opening on the shell, so that one side of the upper end of the drip bucket is attached to the inner surface of the abutment block, and then the crimping block is operated to rotate, and the end of the crimping block is rotated toward the shell and is clamped on the shell through the clamping structure. At this time, the crimping block can be supported on the circumferential surface of the drip bucket, and the abutment block and the crimping block can clamp the drip bucket to install the entire device on the drip bucket. And after the entire device is installed, the drip bucket is located in the middle of the upper end of the shell, which can avoid the infusion tube from being deflected due to the installation of the drip-speed infusion controller, and can better ensure that the drip bucket and the infusion tube at the lower end of the drip bucket are in a vertical state. Secondly, when monitoring the dripping liquid in the drip bucket, an infrared detection structure and a capacitance detection structure are provided, and the two monitoring methods can complement each other to avoid the influence of environmental changes on the monitoring accuracy. Furthermore, the infrared detection structure and the capacitance detection structure are both installed at the open end of the housing installation port, and the positions of the detection of the two in the drip bucket are the same vertical position. When the two detect, the variables of the detection position are reduced. When the speeds of the two detections are compared, there is better comparability, and it is possible to better judge whether the detection is correct. Therefore, in the above-mentioned drip-rate infusion controller, the design of the housing structure can be more conveniently installed on the drip bucket of the infusion device, which is convenient for operating the clamping drip bucket and convenient for disassembly after use. It can also ensure that the infusion tube is in a vertical state after installation, and it can also ensure that the entire housing is in a vertical state. The infrared detection structure and the capacitance detection structure at the upper end are in a horizontal state when working. The design of the positions of the infrared detection structure and the capacitance detection structure on the housing can make the detection positions of the two detection structures the same, have better comparability, and improve the detection reliability.

[0008] Furthermore, one end of the crimping block protrudes outward to form a hinge block, and a hinge notch is provided on the shell body corresponding to the hinge block for the hinge block to be inserted into, and a hinge hole is provided on the hinge block, and a hinge shaft is provided in the hinge hole, and the two ends of the hinge shaft are respectively inserted into the hinge sockets provided on the two side walls of the hinge notch.

[0009] In this way, the hinged structure between the crimping block and the housing is simpler and more reasonably designed. In addition, the above structure reduces the shaking of the crimping block and makes it easier to clamp and install the drip bucket.

[0010] Furthermore, the clamping structure includes a clamping hole provided on an end surface of one end of the crimping block, and a clamping protrusion is provided on the side wall of the installation port, and after the crimping block rotates toward the shell, the clamping protrusion can be clamped into the clamping hole to limit the rotation of the abutment block.

[0011] In this way, the clamping structure is simpler and convenient for processing and manufacturing. When in use, it is more convenient to complete the clamping operation, and after the clamping, the reliability is better.

[0012] Furthermore, the distal end of the outer surface of the clamping protrusion has a chamfered structure, which makes it more convenient to complete the clamping operation.

[0013] Furthermore, the housing comprises an upper housing and a lower housing, so that the housing structure is simpler and more convenient to manufacture.

[0014] As an optimization, the infrared detection structure includes an infrared signal processing module, an infrared transmitting module and an infrared receiving module, and the infrared transmitting module and the infrared receiving module are respectively installed on the two side walls of the open end of the installation port, and the working end of the infrared transmitting module is arranged opposite to the working end of the infrared receiving module; the signal output ends of the infrared transmitting module and the infrared receiving module are respectively connected to the signal input end of the infrared signal processing module.

[0015] In this way, the infrared transmitting module and the infrared receiving module are used to detect whether there is dripping liquid at the corresponding position of the drip bucket in the installation port, and the information is sent to the infrared signal processing module for processing and then preparing for subsequent operations.

[0016] As an optimization, the capacitance detection structure includes a capacitance signal processing module and a capacitance detection piece, and the capacitance detection piece is fixedly mounted on the inner side of the abutment block and the crimping block respectively through a first mounting structure and a second mounting structure; and the capacitance detection piece is electrically connected to the capacitance signal processing module.

[0017] In this way, two capacitance detection pieces are used to detect whether there is liquid dripping at the corresponding position of the drip bucket in the installation port. The principle of capacitance detection of liquid drops is that according to the capacitance calculation formula C=εS / d, ε is the dielectric constant between the plates. When a droplet in the drip bucket passes between the two metal detection pieces, the dielectric constant changes, so the capacitance changes. The capacitance detection structure includes a capacitance signal processing module (a high-precision digital capacitance conversion chip) and two capacitance detection pieces. When the capacitance value between the two metal pieces changes, the capacitance signal processing module can receive the signal and determine whether there is liquid dripping.

[0018] Furthermore, the first mounting structure includes a first mounting groove arranged on the inner side of the abutment block, a capacitance detection piece is installed in the first mounting groove, and a first fixing boss is protruding outward from the bottom surface of one end of the first mounting groove, and the first fixing boss is correspondingly inserted into a fixing hole provided at the end of the corresponding capacitance detection piece.

[0019] In this way, the capacitance detection piece can be installed on the abutment block more conveniently, and the structure is simple and the design is more reasonable.

[0020] Furthermore, the second mounting structure includes a second mounting groove arranged on the inner side surface of the crimping block, a capacitance detection piece is installed in the second mounting groove, and second fixing bosses are respectively protruding outward from the bottom surfaces at both ends of the second mounting groove, and the second fixing bosses are respectively correspondingly inserted into the fixing holes provided at the ends of the corresponding capacitance detection pieces.

[0021] In this way, the capacitance detection sheet is installed after the crimping block, which is more stable and can better avoid falling due to repeated rotation of the crimping block.

[0022] As an optimization, the depth dimension of the installation opening along the longitudinal direction of the shell is set to be greater than half of the length dimension of the drip bucket.

[0023] In this way, the size design of the installation port is more reasonable, and the drip bucket is placed after the installation port, which is more stable.

[0024] As an optimization, a receiving groove arranged along the longitudinal direction of the shell is provided in the middle of one surface of the shell, and one end of the receiving groove is connected to the bottom of the mounting port; and the infusion tube connected to the end of the drip bucket can be accommodated and fitted in the receiving groove.

[0025] In this way, by providing a receiving groove, the infusion tube at the lower end of the drip bucket can be arranged and constrained, so that the entire device can be installed after the drip bucket and can better maintain a vertical state.

[0026] Furthermore, the accommodating groove includes a front section of the accommodating groove connected to the installation port at one end, and a rear section of the accommodating groove is connected to the other end of the front section of the accommodating groove; and the width dimension of the front section of the accommodating groove is larger than the width dimension of the rear section of the accommodating groove.

[0027] In this way, the receiving groove is designed to be a front section and a rear section, and the width of the front section is larger than the width of the rear section, which makes it more convenient to press the infusion tube into the receiving groove.

[0028] As an optimization, positioning blocks are provided in pairs in the middle of the end face of the shell facing away from the installation port, and the two positioning blocks are respectively located at the two outer positions of the accommodating groove, and the opposite ends of the two positioning blocks respectively protrude inward and extend to the inner sides of the two side surfaces of the accommodating groove to form positioning protrusions; the inner ends of the two positioning protrusions are arranged at intervals; and the two positioning protrusions can restrain the infusion tube from escaping from the placement groove.

[0029] In this way, by providing the positioning block, the positioning block extends and protrudes to form a positioning protrusion and plays a role in limiting the infusion tube from escaping from the placement groove, and the entire structural design is simple and reasonable.

[0030] Furthermore, the inner ends of the two positioning protrusions and the side adjacent to the open end of the placement groove are each provided with a chamfered angle structure. Such a chamfer has a guiding function, which can make it easier to insert the infusion tube. Furthermore, the positioning block and the housing are integrally formed, which is more convenient for processing and manufacturing.

[0031] As an optimization, it also includes a drip control structure, which includes a driving motor arranged in the shell and located on one side of the accommodating groove, the output end of the driving motor is connected to a driving screw, and a driving block is arranged in the shell and corresponding to the driving screw, the driving block is provided with a threaded driving hole and cooperates with the driving screw thread; and a driving block lateral guide structure is arranged between the driving block and the shell, the driving motor drives the driving screw to rotate and can drive the driving block to move laterally in the shell, and the driving block passes through the yielding port on the corresponding side wall of the accommodating groove and abuts against the infusion tube in the accommodating groove to control the dripping speed.

[0032] In this way, by setting up a driving motor, the driving motor drives the driving screw to rotate and can drive the driving block to move horizontally in the shell, so that the driving block passes through the clearance hole on the corresponding side wall of the accommodating groove and abuts against the infusion tube in the accommodating groove to control the dripping speed. The entire control structure is simple and more convenient to use.

[0033] Furthermore, both sides of the front end of the driving block have chamfered structures, so that when the driving block abuts against the infusion tube, the infusion tube can be deformed more easily to control the dripping speed.

[0034] Furthermore, the transverse guide structure of the driving block includes guide blocks installed on two surfaces of the inner side of the shell, and the guide blocks are provided with guide profiling grooves corresponding to the surfaces of the driving blocks for the transverse sliding of the driving blocks. In this way, the transverse guide structure of the driving block is simpler and can be guided better. When designing, it can also be set as a rectangular guide hole, and the driving block is set to a rectangle matching it. It can also be designed to cooperate with the guide rail and the guide groove.

[0035] As an optimization, a controller is provided in the shell, and the signal output ends of the infrared detection structure and the capacitance detection structure are respectively connected to the signal input end of the controller, and the signal output end of the controller is connected to the electronic control end of the drive motor.

[0036] In this way, the infrared detection structure and the capacitance detection structure can each send the detection information to the controller, and the controller compares the dripping speed detected by the two. When the device is turned on, the infrared detection structure and the capacitance detection structure work simultaneously, recording the total number of drops of the liquid medicine within 30 seconds. If the total number of drops of the liquid medicine detected by the infrared detection is consistent with the total number of drops of the liquid medicine detected by the capacitance detection, it means that the sensitivity is appropriate and there is no need to adjust the sensitivity; if the total number of drops of the liquid medicine detected by the infrared detection is greater than the total number of drops of the liquid medicine detected by the capacitance detection, it means that there is a missed detection and the detection sensitivity needs to be improved; if the total number of drops of the liquid medicine detected by the infrared detection is less than the total number of drops of the liquid medicine detected by the capacitance detection, it means that the capacitance detector is subject to external electromagnetic interference and the detection sensitivity needs to be reduced to reduce interference; by dynamically adjusting the sensitivity, when the total number of drops of the liquid medicine detected by the infrared detection is consistent with the number of drops of the liquid medicine detected by the capacitance detection, no adjustment is made. This design makes the final infusion monitoring structure more accurate. And it can also control the dripping speed as needed.

[0037] As an optimization, it also includes an air detection structure, which includes a bubble signal processing module and a bubble detection piece arranged in the shell; there are two bubble detection pieces, each located on both sides of the infusion tube in the installation groove, and a detection clearance port is provided on each side wall of the installation groove corresponding to the bubble detection piece; the bubble detection piece is electrically connected to the bubble signal processing module, and the signal output end of the bubble signal processing module is connected to the signal input end of the controller, and the signal output end of the controller is also connected to the speaker signal on the shell.

[0038] In this way, the bubble detection piece can detect whether there is dripping liquid in the infusion tube at the lower end of the drip bucket. If air is present, the capacitance value decreases, indicating that air appears in the infusion pipeline. At this time, the controller sends a signal to the speaker and alarms to improve the safety of infusion.

[0039] As an optimization, a battery module is also arranged in the shell, and a USB interface and a power indicator light are also arranged on the shell. The battery module, the USB interface and the power indicator light are all connected to the controller.

[0040] In this way, the design is more reasonable and more convenient to use.

[0041] Furthermore, a wireless transmission module is also arranged in the housing, and the wireless transmission module has a signal transmitting end and is used to connect with an external mobile terminal signal, so that it is more convenient to connect with the mobile terminal signal and facilitate remote monitoring.

[0042] Furthermore, a display module is arranged on one surface of the housing, the display module includes an LCD display screen, and the LCD display screen is connected to the controller. This makes the structural design more reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a structural schematic diagram of a specific implementation mode of the present invention.

[0044] Figure 2 yes Figure 1 A locally enlarged schematic diagram of position A in FIG.

[0045] Figure 3 yes Figure 1 Front view of .

[0046] Figure 4 yes Figure 1 Schematic diagram of the structure after the crimping block is omitted.

[0047] Figure 5 yes Figure 4 A locally enlarged schematic diagram of position B in FIG.

[0048] Figure 6 yes Figure 4 Front view of .

[0049] Figure 7 yes Figure 1 Schematic diagram of the structure without the upper shell.

[0050] Figure 8 yes Figure 7 A local enlarged schematic diagram of the C position in FIG.

[0051] Fig. 9 Schematic diagram of electrical connection of various components in a specific implementation mode of the present invention (battery module, speaker, USB interface and LCD display are omitted in the figure). DETAILED DESCRIPTION

[0052] The present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific manner, and therefore cannot be understood as limiting the present invention. The terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0053] like Figures 1 to 9 As shown, the drip-rate infusion controller includes a shell 1 and a drip detection structure. The shell is designed as a flat box structure as a whole. A mounting opening 2 that runs through the thickness direction of the shell is provided at the middle position of one end of the shell, and the mounting opening matches the end of the drip bucket for inserting one end of the drip bucket; an abutment block 3 and a crimping block 4 are provided at the open end of the mounting opening and are spaced apart along the thickness direction of the shell, and both ends of the abutment block are respectively connected to the shell and can be supported on one side of the drip bucket in the mounting opening; one end of the crimping block is hinged to the shell, and the other end of the crimping block can be rotated toward the shell and can be clamped to the shell through the clamping structure, and the inner side of the crimping block is supported on one side of the drip bucket to clamp the drip bucket; the drip detection structure includes an infrared detection structure and a capacitive detection structure installed at the open position of the mounting opening, and the detection ends of the infrared detection structure and the capacitive detection structure can be respectively arranged facing the drip bucket in the mounting opening.

[0054] In this way, when the above-mentioned drip-speed infusion controller is in use, the lower end of the drip bucket is correspondingly placed in the mounting opening on the shell, so that one side of the upper end of the drip bucket is attached to the inner surface of the abutment block, and then the crimping block is operated to rotate, and the end of the crimping block is rotated toward the shell and is clamped on the shell through the clamping structure. At this time, the crimping block can be supported on the circumferential surface of the drip bucket, and the abutment block and the crimping block can clamp the drip bucket to install the entire device on the drip bucket. And after the entire device is installed, the drip bucket is located in the middle of the upper end of the shell, which can avoid the infusion tube from being deflected due to the installation of the drip-speed infusion controller, and can better ensure that the drip bucket and the infusion tube at the lower end of the drip bucket are in a vertical state. Secondly, when monitoring the dripping liquid in the drip bucket, an infrared detection structure and a capacitance detection structure are provided, and the two monitoring methods can complement each other to avoid the influence of environmental changes on the monitoring accuracy. Furthermore, the infrared detection structure and the capacitance detection structure are both installed at the open end of the housing installation port, and the positions of the detection of the two in the drip bucket are the same vertical position. When the two detect, the variables of the detection position are reduced. When the speeds of the two detections are compared, there is better comparability, and it is possible to better judge whether the detection is correct. Therefore, in the above-mentioned drip-rate infusion controller, the design of the housing structure can be more conveniently installed on the drip bucket of the infusion device, which is convenient for operating the clamping drip bucket and convenient for disassembly after use. It can also ensure that the infusion tube is in a vertical state after installation, and it can also ensure that the entire housing is in a vertical state. The infrared detection structure and the capacitance detection structure at the upper end are in a horizontal state when working. The design of the positions of the infrared detection structure and the capacitance detection structure on the housing can make the detection positions of the two detection structures the same, have better comparability, and improve the detection reliability.

[0055] Specifically, one end of the crimping block protrudes outward to form a hinge block 5, and a hinge notch 6 is provided on the shell corresponding to the hinge block for the hinge block to be inserted into, and a hinge hole is provided on the hinge block, and a hinge shaft is provided in the hinge hole, and the two ends of the hinge shaft are respectively inserted into the hinge sockets provided on the two side walls of the hinge notch.

[0056] In this way, the hinged structure between the crimping block and the housing is simpler and more reasonably designed. In addition, the above structure reduces the shaking of the crimping block and makes it easier to clamp and install the drip bucket.

[0057] Specifically, the clamping structure includes a clamping hole provided on one end surface of the crimping block, a clamping protrusion 7 is provided on the side wall of the installation port, and after the crimping block rotates toward the housing, the clamping protrusion can be clamped into the clamping hole to limit the rotation of the abutment block.

[0058] In this way, the clamping structure is simpler and convenient for processing and manufacturing. When in use, it is more convenient to complete the clamping operation, and after the clamping, the reliability is better.

[0059] Specifically, the distal end of the outer surface of the clamping protrusion has a chamfered structure, which makes it more convenient to complete the clamping operation.

[0060] Specifically, the housing includes an upper housing 8 and a lower housing 9. In this way, the housing structure is simpler and more convenient to manufacture.

[0061] In this specific embodiment, the infrared detection structure includes an infrared signal processing module 10, an infrared transmitting module 11 and an infrared receiving module 12, and the infrared transmitting module and the infrared receiving module are respectively installed on the two side walls of the open end of the installation port, and the working end of the infrared transmitting module is arranged opposite to the working end of the infrared receiving module; the signal output ends of the infrared transmitting module and the infrared receiving module are respectively connected to the signal input end of the infrared signal processing module.

[0062] In this way, the infrared transmitting module and the infrared receiving module are used to detect whether there is dripping liquid at the corresponding position of the drip bucket in the installation port, and the information is sent to the infrared signal processing module for processing and then preparing for subsequent operations.

[0063] In this specific embodiment, the capacitance detection structure includes a capacitance signal processing module 13 and a capacitance detection piece 14, and the capacitance detection piece is fixedly mounted on the inner side of the abutment block and the crimping block respectively through a first mounting structure and a second mounting structure; and the capacitance detection piece is electrically connected to the capacitance signal processing module.

[0064] In this way, two capacitance detection pieces are used to detect whether there is liquid dripping at the corresponding position of the drip bucket in the installation port. The principle of capacitance detection of liquid drops is that according to the capacitance calculation formula C=εS / d, ε is the dielectric constant between the plates. When a droplet in the drip bucket passes between the two metal detection pieces, the dielectric constant changes, so the capacitance changes. The capacitance detection structure includes a capacitance signal processing module (a high-precision digital capacitance conversion chip) and two capacitance detection pieces. When the capacitance value between the two metal pieces changes, the capacitance signal processing module can receive the signal and determine whether there is liquid dripping.

[0065] Specifically, the first mounting structure includes a first mounting groove arranged on the inner side of the abutment block, a capacitance detection piece is installed in the first mounting groove, and a first fixing boss 15 is protruding outward from the bottom surface of one end of the first mounting groove, and the first fixing boss is correspondingly inserted into the fixing hole provided at the end of the corresponding capacitance detection piece.

[0066] In this way, the capacitance detection piece can be installed on the abutment block more conveniently, and the structure is simple and the design is more reasonable.

[0067] Specifically, the second mounting structure includes a second mounting groove arranged on the inner side surface of the crimping block, a capacitance detection piece is installed in the second mounting groove, and second fixing bosses are respectively protruding outward from the bottom surfaces at both ends of the second mounting groove, and the second fixing bosses are respectively correspondingly inserted into the fixing holes provided at the ends of the corresponding capacitance detection pieces.

[0068] In this way, the capacitance detection sheet is installed after the crimping block, which is more stable and can better avoid falling due to repeated rotation of the crimping block.

[0069] In this specific embodiment, the depth dimension of the installation opening 2 along the longitudinal direction of the shell is set to be greater than half of the length dimension of the drip bucket.

[0070] In this way, the size design of the installation port is more reasonable, and the drip bucket is placed after the installation port, which is more stable.

[0071] In this specific embodiment, a receiving groove 16 arranged longitudinally along the shell is provided in the middle of one surface of the shell, and one end of the receiving groove is connected to the bottom of the installation port; and the infusion tube connected to the end of the drip bucket can be accommodated and fitted in the receiving groove.

[0072] In this way, by providing a receiving groove, the infusion tube at the lower end of the drip bucket can be arranged and constrained, so that the entire device can be installed after the drip bucket and can better maintain a vertical state.

[0073] Specifically, the receiving groove includes a front receiving groove section 17 whose one end is connected to the installation port, and a rear receiving groove section 18 is connected to the other end of the front receiving groove section; and the width dimension of the front receiving groove section is larger than the width dimension of the rear receiving groove section.

[0074] In this way, the receiving groove is designed to be a front section and a rear section, and the width of the front section is larger than the width of the rear section, which makes it more convenient to press the infusion tube into the receiving groove.

[0075] In this specific embodiment, a pair of positioning blocks 19 are provided in the middle of the end surface of the shell away from the installation port, and the two positioning blocks are respectively located at the two outer sides of the accommodating groove, and the opposite ends of the two positioning blocks respectively protrude inward and extend to the inner sides of the two side surfaces of the accommodating groove to form positioning protrusions 20; the inner ends of the two positioning protrusions are arranged at intervals; and the two positioning protrusions can restrain the infusion tube from escaping from the placement groove.

[0076] In this way, by providing the positioning block, the positioning block extends and protrudes to form a positioning protrusion and plays a role in limiting the infusion tube from escaping from the placement groove, and the entire structural design is simple and reasonable.

[0077] Specifically, the inner ends of the two positioning protrusions and the side adjacent to the open end of the placement groove are each provided with a chamfered angle structure. Such a chamfer has a guiding function and can make it easier to insert the infusion tube. Specifically, the positioning block and the shell are integrally formed, which is more convenient for processing and manufacturing.

[0078] In this specific embodiment, it also includes a drip control structure, which includes a driving motor 21 arranged in the shell and located on one side of the accommodating groove, the output end of the driving motor is connected to a driving screw, and a driving block 22 is arranged in the shell and corresponding to the driving screw, the driving block is provided with a threaded driving hole and cooperates with the driving screw thread; and a driving block lateral guide structure is arranged between the driving block and the shell, the driving motor drives the driving screw to rotate and can drive the driving block to move laterally in the shell, and the driving block passes through the yielding port on the corresponding side wall of the accommodating groove and abuts against the infusion tube in the accommodating groove to control the dripping speed.

[0079] In this way, by setting up a driving motor, the driving motor drives the driving screw to rotate and can drive the driving block to move horizontally in the shell, so that the driving block passes through the clearance hole on the corresponding side wall of the accommodating groove and abuts against the infusion tube in the accommodating groove to control the dripping speed. The entire control structure is simple and more convenient to use.

[0080] Specifically, both sides of the front end of the driving block have chamfered structures, so that when the driving block abuts against the infusion tube, the infusion tube can be deformed more easily to control the dripping speed.

[0081] Specifically, the transverse guide structure of the driving block includes guide blocks 23 installed on two surfaces of the inner side of the shell, and the guide blocks are provided with guide profiling grooves corresponding to the surfaces of the driving blocks for the transverse sliding of the driving blocks. In this way, the transverse guide structure of the driving block is simpler and can be guided better. When designing, it can also be set as a rectangular guide hole, and the driving block is set to a rectangle matching it. It can also be designed as a guide rail and a guide groove.

[0082] In this specific embodiment, a controller 24 is provided in the housing, and the signal output ends of the infrared detection structure and the capacitance detection structure are respectively connected to the signal input end of the controller, and the signal output end of the controller is connected to the electric control end of the drive motor.

[0083] In this way, the infrared detection structure and the capacitance detection structure can each send the detection information to the controller, and the controller compares the dripping speed detected by the two. When the device is turned on, the infrared detection structure and the capacitance detection structure work simultaneously, recording the total number of drops of the liquid medicine within 30 seconds. If the total number of drops of the liquid medicine detected by the infrared detection is consistent with the total number of drops of the liquid medicine detected by the capacitance detection, it means that the sensitivity is appropriate and there is no need to adjust the sensitivity; if the total number of drops of the liquid medicine detected by the infrared detection is greater than the total number of drops of the liquid medicine detected by the capacitance detection, it means that there is a missed detection and the detection sensitivity needs to be improved; if the total number of drops of the liquid medicine detected by the infrared detection is less than the total number of drops of the liquid medicine detected by the capacitance detection, it means that the capacitance detector is subject to external electromagnetic interference and the detection sensitivity needs to be reduced to reduce interference; by dynamically adjusting the sensitivity, when the total number of drops of the liquid medicine detected by the infrared detection is consistent with the number of drops of the liquid medicine detected by the capacitance detection, no adjustment is made. This design makes the final infusion monitoring structure more accurate. And it can also control the dripping speed as needed.

[0084] In this specific embodiment, it also includes an air detection structure, which includes a bubble signal processing module 25 and a bubble detection piece 26 arranged in the shell; there are two bubble detection pieces, each located on both sides of the infusion tube in the installation groove, and detection clearance ports are respectively provided on the two side walls of the installation groove corresponding to the bubble detection piece; the bubble detection piece is electrically connected to the bubble signal processing module, and the signal output end of the bubble signal processing module is connected to the signal input end of the controller, and the signal output end of the controller is also connected to the signal of the speaker 27 on the shell.

[0085] In this way, the bubble detection piece can detect whether there is dripping liquid in the infusion tube at the lower end of the drip bucket. If air is present, the capacitance value decreases, indicating that air appears in the infusion pipeline. At this time, the controller sends a signal to the speaker and alarms to improve the safety of infusion.

[0086] In this specific embodiment, a battery module 28 is further disposed in the housing, and a USB interface 29 and a power indicator light 30 are further disposed on the housing. The battery module, the USB interface and the power indicator light are all connected to the controller.

[0087] In this way, the design is more reasonable and more convenient to use.

[0088] Specifically, a wireless transmission module is also arranged in the housing, and the wireless transmission module has a signal transmitting end and is used to connect with an external mobile terminal signal, so that it is more convenient to connect with the mobile terminal signal and facilitate remote monitoring.

[0089] Specifically, a display module is arranged on one surface of the housing, the display module includes an LCD display screen, and the LCD display screen is connected to the controller. This makes the structural design more reasonable.

[0090] During implementation, a button is arranged on the surface of one side of the shell. The model of the controller is MSP430G2553.

[0091] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A drip-rate infusion controller, comprising a housing and a drip detection structure, characterized in that: The shell is designed as a flat box structure as a whole, and a mounting opening is provided at the middle position of one end of the shell in the transverse direction and runs through the thickness direction thereof, and the mounting opening matches the end of the drip bucket for inserting one end of the drip bucket; an abutment block and a crimping block are provided at the open end of the mounting opening and spaced along the thickness direction of the shell, and both ends of the abutment block are respectively connected to the shell and can be supported against one side of the drip bucket in the mounting opening; one end of the crimping block is hinged to the shell, and the other end of the crimping block can be rotated toward the shell and can be clamped to the shell through a clamping structure, and the inner side of the crimping block is supported against one side of the drip bucket to clamp the drip bucket; the drip detection structure includes an infrared detection structure and a capacitive detection structure installed at the open position of the mounting opening, and the detection ends of the infrared detection structure and the capacitive detection structure can be respectively arranged facing the drip bucket in the mounting opening; One end of the crimping block protrudes outward to form a hinge block, and a hinge notch is provided on the shell body corresponding to the hinge block for the hinge block to be placed therein, and a hinge hole is provided on the hinge block, and a hinge shaft is provided in the hinge hole, so that both ends of the hinge shaft are respectively inserted into the hinge insertion holes provided on the two side walls of the hinge notch; the clamping structure includes a clamping hole provided on the end surface of one end of the crimping block, and a clamping protrusion is provided on the side wall of the installation port, and after the crimping block is rotated toward the shell body, the clamping protrusion can be clamped into the clamping hole to limit the rotation of the abutment block; the outer surface of the clamping protrusion has a chamfered structure at the far end; The infrared detection structure includes an infrared signal processing module, an infrared transmitting module and an infrared receiving module, and the infrared transmitting module and the infrared receiving module are respectively installed on the two side walls of the open end of the installation port, and the working end of the infrared transmitting module is arranged directly opposite to the working end of the infrared receiving module; the signal output ends of the infrared transmitting module and the infrared receiving module are respectively connected to the signal input end of the infrared signal processing module; The capacitance detection structure comprises a capacitance signal processing module and a capacitance detection sheet, and the capacitance detection sheet is fixedly mounted on the inner side of the abutment block and the crimping block respectively through a first mounting structure and a second mounting structure; and the capacitance detection sheet is electrically connected to the capacitance signal processing module; The first mounting structure comprises a first mounting groove arranged on the inner side of the abutment block, a capacitance detection piece is installed in the first mounting groove, and a first fixing boss is protruded outwardly from the bottom surface of one end of the first mounting groove, and the first fixing boss is correspondingly inserted into a fixing hole provided at the end of the corresponding capacitance detection piece; The second mounting structure includes a second mounting groove arranged on the inner side of the crimping block, a capacitance detection piece is installed in the second mounting groove, and second fixing bosses are respectively protruding outward from the bottom surfaces at both ends of the second mounting groove, and the second fixing bosses are respectively correspondingly inserted into the fixing holes provided at the ends of the corresponding capacitance detection pieces.

2. The drip-rate infusion controller according to claim 1, characterized in that: The depth dimension of the installation opening along the longitudinal direction of the shell is set to be greater than half of the length dimension of the drip bucket.

3. The drip-rate infusion controller according to claim 1, characterized in that: A receiving groove is arranged longitudinally along the shell in the middle of one surface of the shell, and one end of the receiving groove is connected to the bottom of the installation port; and the infusion tube connected to the end of the drip bucket can be accommodated and fitted in the receiving groove.

4. The drip-rate infusion controller according to claim 3, characterized in that: Positioning blocks are provided in pairs at the middle of the end surface of the shell body away from the installation port, and the two positioning blocks are respectively located at the two outer sides of the accommodating groove, and the opposite ends of the two positioning blocks respectively protrude inward and extend to the inner sides of the two side surfaces of the accommodating groove to form positioning protrusions; the inner ends of the two positioning protrusions are arranged at intervals; and the two positioning protrusions can restrain the infusion tube from escaping from the placement groove.

5. The drip-rate infusion controller according to claim 3, characterized in that: It also includes a drip control structure, which includes a driving motor arranged in the shell and located on one side of the accommodating groove, the output end of the driving motor is connected to a driving screw, and a driving block is arranged in the shell and corresponding to the driving screw, the driving block is provided with a threaded driving hole and cooperates with the driving screw thread; and a driving block lateral guide structure is arranged between the driving block and the shell, the driving motor drives the driving screw to rotate and can drive the driving block to move laterally in the shell, and the driving block passes through the yielding port on the corresponding side wall of the accommodating groove and abuts against the infusion tube in the accommodating groove to control the dripping speed.

6. The drip-rate infusion controller according to claim 5, characterized in that: A controller is arranged in the shell, and the signal output ends of the infrared detection structure and the capacitance detection structure are respectively connected to the signal input end of the controller, and the signal output end of the controller is connected to the electric control end of the driving motor.

7. The drip-rate infusion controller according to claim 6, characterized in that: It also includes an air detection structure, which includes a bubble signal processing module and a bubble detection piece arranged in the shell; there are two bubble detection pieces, each located on both sides of the infusion tube in the installation groove, and detection clearance ports are respectively arranged on the two side walls of the installation groove corresponding to the bubble detection piece; the bubble detection piece is electrically connected to the bubble signal processing module, and the signal output end of the bubble signal processing module is connected to the signal input end of the controller, and the signal output end of the controller is also connected to the speaker signal on the shell.

8. The drip-rate infusion controller according to claim 6, characterized in that: A battery module is also arranged in the shell, and a USB interface and a power indicator light are also arranged on the shell. The battery module, the USB interface and the power indicator light are all connected to the controller.

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