Automatic locking device of infusion tube

Abstract

The utility model relates to an automatic locking device of an infusion tube. The automatic locking device for the infusion tube is ingenious in structural design, the clamping groove is formed in the outer side surface of the shell, a user can directly clamp the infusion tube into the clamping groove in the device conveniently, and installation is easy; in the using process, when the detection assembly detects that no liquid exists in the infusion tube, a signal indicating that no liquid exists is sent to the rotating motor, the rotating motor is automatically started and provides driving force for the transmission assembly, the transmission assembly converts rotating motion into linear motion and then drives the locking block to move, and operation is stable; the transmission assembly is matched with the rotating motor, so that the movement speed and direction of the locking block can be accurately controlled, accurate positioning is achieved, the locking block is made to flatten and lock the infusion tube in time and keep the locking state, circulation of air flow in the infusion tube is stopped, the blood backflow condition is prevented, and the service life of the infusion tube is prolonged. The whole infusion tube locking process does not need to be operated by a nurse or a patient, and user experience is good.

Description

Technical Field

[0001] The utility model relates to the technical field of medical auxiliary equipment, and more specifically, to an automatic locking device for an infusion tube. Background Art

[0002] Infusion tubes are widely used in patients' slow infusion treatment or surgical procedures. During the infusion process, the existing general infusion tubes generally rely on hospital nurses to regularly check whether the liquid in the patient's medicine bottle has been infused. This not only increases the workload, but also if the hanging bottle is not replaced or the needle is not removed in time after the liquid is delivered, blood backflow, i.e., blood return, often occurs, which increases the patient's pain. Therefore, an infusion monitoring device for monitoring whether there is liquid in the infusion tube appears on the market, so as to remind the patient or the nurse to manually slide the roller on the flow rate regulator downward until the infusion tube is clamped and locked. However, the efficiency of manually closing the infusion tube is relatively slow. If the infusion tube cannot be clamped in time, blood return may still occur, and the user experience is not good. Therefore, an infusion tube automatic clamping device is needed that can monitor whether there is liquid in the infusion tube in real time and automatically clamp the infusion tube. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an automatic locking device for an infusion tube in view of the above-mentioned defects of the prior art.

[0004] The technical solution adopted by the utility model to solve its technical problems is: an automatic locking device for an infusion tube, comprising a shell with a built-in installation cavity, characterized in that the outer surface of the shell is provided with a card slot for the infusion tube to be inserted and fixed with the infusion tube; the card slot is provided with a lock hole and a detection port connected to the installation cavity; a detection component for detecting whether there is liquid in the infusion tube is provided on one side of the detection port in the installation cavity, and a locking component for clamping and locking the infusion tube is provided on one side of the lock hole; the locking component includes a locking block that moves horizontally and linearly in the installation cavity, a rotating motor that is fixedly installed in the installation cavity and connected to the detection component signal, and a transmission component that converts the rotating motion into a linear motion for driving the locking block to move closer to or away from the infusion tube; the rotating motor is connected to the locking block through the transmission component;

[0005] The automatic locking device for the infusion tube of the utility model, wherein a limiting portion is provided on one side or both sides of the locking block in the installation cavity to prevent the locking block from deviating from a preset moving track;

[0006] The automatic locking device of the infusion tube of the utility model, wherein the transmission assembly comprises a connecting block fixedly connected to the output shaft of the rotating motor; a push rod extending toward the locking block is eccentrically arranged on a side surface of the connecting block facing the locking block; a first sliding groove is arranged on the locking block along its width direction for the push rod to be inserted and for the push rod to move back and forth along the width of the locking block;

[0007] The automatic locking device for the infusion tube of the utility model, wherein the outer surface of the shell is also movably provided with a clamping plate for opening or closing the slot; the shell is provided with an elastic reset member for providing the clamping plate with an elastic force for closing the slot;

[0008] The automatic locking device for the infusion tube of the utility model, wherein the clamping plate is slidably connected or rotatably connected to the housing;

[0009] The automatic locking device of the infusion tube of the utility model, wherein, when the clamping plate is slidably connected with the shell, the lower surface of the clamping plate is provided with a slider extending toward the shell; the shell is provided with a second slide groove for the slider to pass through and cooperate with the slide groove for sliding connection; the second slide groove is perpendicular to the slot; the lower end of the slider passing through the second slide groove is also provided with a limiting protrusion to prevent the clamping plate from being separated from the shell;

[0010] The automatic locking device for the infusion tube of the utility model, wherein the housing is located on the other side of the clamping slot and is further provided with a stop block corresponding to the clamping plate;

[0011] The automatic locking device for the infusion tube of the utility model, wherein the second slide groove is provided with a first gear position and a second gear position which are interconnected; when the slider slides to the first gear position, the front end surface of the clamping plate abuts against a side surface of the stop block, and the clamping plate covers the clamping slot to close the notch of the clamping slot; when the slider slides to the second gear position, the clamping plate is located on a side of the clamping slot away from the stop block, and the notch of the clamping slot is in an open state;

[0012] The automatic locking device for the infusion tube of the utility model, wherein the lower surface of the clamping plate is provided with a tightening block at one end facing the clamping slot; the housing is provided with a guide groove for the tightening block to be inserted and communicated with the clamping slot; one end of the elastic reset member abuts against a side surface of the tightening block facing away from the clamping slot, and the other end abuts against an inner side wall of the housing;

[0013] The automatic locking device for the infusion tube described in the utility model is characterized in that a battery and a main control board are also provided in the installation cavity; a switch module electrically connected to the main control board is movably provided on the stop block; the main control board and the switch module are located on one side of the card slot; the locking assembly is located on the other side of the card slot; the battery, the detection assembly and the rotating motor are all electrically connected to and controlled by the main control board.

[0014] The beneficial effects of the utility model are as follows: the automatic locking device of the infusion tube has an ingenious structural design, and the card slot is arranged on the outer surface of the shell, so that the user can directly insert the infusion tube into the card slot in the device, and the installation is simple; during use, when the detection component detects that there is no liquid in the infusion tube, it sends a liquid-free signal to the rotating motor, and the rotating motor automatically starts and provides driving force to the transmission component, and the transmission component converts the rotational motion into linear motion and drives the locking block to move, and the operation is stable, and the cooperation between the transmission component and the rotating motor can also realize the precise control of the movement speed and direction of the locking block, so as to realize precise positioning, and then the locking block can clamp the infusion tube and lock it in time and keep it locked, so that the internal airflow stops circulating and prevents blood from flowing back. The entire infusion tube locking process does not require operation by nurses or patients, and the user experience is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work:

[0016] Figure 1 It is a structural schematic diagram of an automatic locking device for an infusion tube in a preferred embodiment of the utility model;

[0017] Figure 2 yes Figure 1 A front view of an automatic locking device for an infusion tube;

[0018] Figure 3 yes Figure 2 Cross-section of the middle AA;

[0019] Figure 4 yes Figure 1 A three-dimensional exploded view of an automatic locking device for an infusion tube;

[0020] Figure 5 yes Figure 1 A schematic diagram of a portion of the structure of the middle housing 10;

[0021] Figure 6 yes Figure 1A schematic structural diagram of the middle clamping plate 40. DETAILED DESCRIPTION

[0022] The terms "first", "second", "third" and "fourth" etc. in the specification and claims of the present invention and the drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices.

[0023] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0024] "Multiple" means two or more. "And / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the related objects are in an "or" relationship.

[0025] Moreover, the terms "up, down, front, back, left, right, upper end, lower end, longitudinal" and the like indicating directions are all based on the posture and position of the device or equipment described in this solution during normal use.

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be described clearly and completely in combination with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are partial embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0027] An automatic locking device for an infusion tube in a preferred embodiment of the utility model is as follows Figure 1-6As shown, the housing 10 includes a mounting cavity 01, and optionally, the housing 10 includes an upper housing 101 and a lower housing 102 that are interlocked; the outer surface of the housing 10 is provided with a slot 11 for inserting the infusion tube 02 and cooperating with it to be fixed; the slot 11 runs through the housing 10 to facilitate the infusion tube to be clamped; the slot 11 is provided with a lock hole 12 and a detection port 13 that are connected to the mounting cavity 01; a detection component 20 for detecting whether there is liquid in the infusion tube 02 is provided on one side of the detection port 13 in the mounting cavity 01, and a locking component 30 for clamping and locking the infusion tube 02 is provided on one side of the lock hole 12; in one embodiment, the detection component 20 can be a liquid level sensor or liquid detector in the prior art, such as an ultrasonic liquid level sensor, which detects the presence of liquid by sending and receiving ultrasonic pulses. When ultrasonic waves encounter liquid, part of the waves will be reflected back. By analyzing these reflected waves, the sensor can determine whether the liquid is flowing. If the sensor does not receive the reflected waves, it can be determined that there is no liquid in the tube. The locking assembly 30 includes a locking block 31 that moves horizontally and linearly in the installation cavity 01, a rotating motor 32 that is fixedly installed in the installation cavity 01 and connected to the detection assembly 20 signal, and a transmission assembly 33 that converts the rotating motion into driving the locking block 31 to move closer to or away from the infusion tube 02 to move linearly; in one embodiment, the locking block 31 is in the shape of a long strip and is arranged sideways on one side of the card slot 11; the structure is compact. The rotating motor 32 is connected to the locking block 31 through the transmission assembly 33. After the rotating motor provides driving force to the transmission assembly, the transmission assembly drives the locking block 31 to move linearly, which can achieve smooth and continuous movement and more accurate positioning.

[0028] The automatic locking device of the infusion tube has an ingenious structural design, and the card slot is set on the outer surface of the shell, which is convenient for the user to directly insert the infusion tube into the card slot in the device, and the installation is simple; during use, when the detection component detects that there is no liquid in the infusion tube, it sends a liquid-free signal to the rotating motor, and the rotating motor automatically starts and provides driving force to the transmission component. The transmission component converts the rotational motion into linear motion and drives the locking block to move, and the operation is smooth. The cooperation between the transmission component and the rotating motor can also realize the precise control of the movement speed and direction of the locking block, so as to achieve precise positioning, so that the locking block can clamp the infusion tube and lock it in time and keep it locked, so that the internal airflow stops circulating and prevents blood from flowing back. The entire infusion tube locking process does not require operation by nurses or patients, and the user experience is good.

[0029] Furthermore, a limit portion 14 is provided on one or both sides of the locking block 31 in the installation cavity 01 to prevent the locking block 31 from deviating from the preset moving track. The limit portion 14 is a plate-shaped structure; the limit portion can keep the locking block in horizontal linear motion to prevent the locking block from deviating from the preset moving track.

[0030] Furthermore, the transmission assembly 33 includes a connection block 331 fixedly connected to the output shaft of the rotating motor 32; a push rod 332 extending toward the locking block 31 is eccentrically arranged on the surface of one side of the connection block 331 facing the locking block 31; a first slide groove 311 is arranged on the locking block 31 along its width direction for the push rod 332 to be inserted and for the push rod 332 to move back and forth along the width of the locking block 31. The first slide groove 311 is a long strip structure; when the connection block 331 drives the push rod to rotate and move in the direction of the card slot, the push rod provides a force to move in the direction of the card slot to the locking block 31, and moves up and down in the first slide groove at the same time; when the connection block 331 drives the push rod to rotate and move in the direction away from the card slot, the push rod provides a force to move in the direction away from the card slot to the locking block 31, and moves up and down in the first slide groove at the same time, and the operation is stable.

[0031] In order to further prevent the device from falling off the infusion tube, a splint 40 for opening or closing the slot 11 is movably provided on the outer surface of the shell 10; the upper surface of the splint 40 is an inclined surface inclined downward toward the slot, which is convenient for the user to apply force to the splint 40; optionally, an anti-slip strip is also provided on the upper surface of the splint 40; an elastic reset member 50 is provided on the shell 10 for providing elastic force for the splint 40 to close the slot 11; optionally, the elastic reset member 50 is a steel tube type telescopic spring in the prior art; through the force of the elastic reset member on the splint, the infusion tube can be further fixed and clamped on the device, and the connection is firm.

[0032] In one embodiment, the clamping plate 40 is slidably connected to the housing 10. Optionally, a slider 41 extending toward the housing 10 is provided on the lower surface of the clamping plate 40. The housing 10 is provided with a second slide groove 15 on one side of the card slot 11 for the slider 41 to pass through and slidably connected therewith. The second slide groove 15 is in a long strip structure. The second slide groove 15 is perpendicular to the card slot 11. The lower end of the slider 41 passing through the second slide groove 15 is also provided with a limiting protrusion 411 to prevent the clamping plate 40 from being separated from the housing 10. During installation, it is only necessary to apply a force to the clamping plate to move away from the card slot, so that the slider slides along the second slide groove toward the end away from the card slot. The reset elastic member is squeezed and compressed by the clamping plate, so that the card slot is in an open state, and the infusion tube can be clamped into the card slot. Then, the clamping plate is released, the clamping plate loses the external force, and the reset elastic member automatically resets and drives the clamping plate to slide toward the card slot until the card slot is closed. The operation is simple.

[0033] Furthermore, the housing 10 is provided with a stop block 16 corresponding to the clamp 40 on the other side of the slot 11. The clamp is stopped and positioned by the stop block 16, which can prevent the clamp from excessively clamping the infusion tube and avoid the infusion tube being clamped flat.

[0034] Furthermore, the second slide groove 15 is provided with a first gear position A and a second gear position B which are connected to each other; when the slider 41 slides to the first gear position A, the front end face of the clamp 40 abuts against the side surface of the stop block 16, and the clamp 40 covers the slot 11 to close the notch of the slot 11, so that the slot 11 is in a closed state; when the slider 41 slides to the second gear position B, the clamp 40 is located on the side of the slot 11 away from the stop block 16, and the notch of the slot 11 is in an open state.

[0035] Furthermore, a clamping block 42 is provided on one end of the lower surface of the splint 40 facing the slot 11; a side surface of the clamping block 42 facing the slot is provided with an arc that is recessed inward and matches the outer surface of the infusion tube, and a guide groove 17 is provided on the shell 10 for the clamping block 42 to be inserted and connected to the slot 11; one end of the elastic reset member 50 abuts against a side surface of the clamping block 42 facing away from the slot 11, and the other end abuts against the inner wall of the shell 10; the structural layout is reasonable.

[0036] It is worth noting that, in another embodiment, the clamping plate 40 can also be rotatably connected to the housing 10, which can be achieved by using an elastic clamp structure similar to that in the prior art, and will not be described in detail here, as the above also falls within the protection scope of the present utility model.

[0037] Furthermore, a battery 60 and a main control board 70 are also provided in the installation cavity 01, and a switch module 80 electrically connected to the main control board 70 is movably provided on the stop block 16; it is worth noting that the main control board 70 and the switch module 80 are conventional technical means in this field, and the control structure and switch structure in the prior art can be adopted; the battery 60 supplies power to the rotating motor 32, the switch module 80 and the main control board 70, and the switch module 80 releases the locking state of the locking assembly 30, thereby loosening the infusion tube, so as to facilitate the removal of the device from the infusion tube; the main control board 70 and the switch module 80 are located on one side of the card slot 11; the locking assembly 30 is located on the other side of the card slot 11, and the structural layout is reasonable and does not interfere with each other; the battery 60, the detection assembly 20 and the rotating motor 32 are all electrically connected to and controlled by the main control board 70; the circuit connection structure and the control method therein can be realized by the prior art, and do not belong to the improvements of the present utility model, so they will not be repeated here.

[0038] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. An automatic locking device for an infusion tube, comprising a housing with a built-in mounting cavity, characterized in that: The outer surface of the shell is provided with a slot for the infusion tube to be inserted and fixed with the infusion tube; the slot is provided with a lock hole and a detection port connected to the installation cavity; a detection component for detecting whether there is liquid in the infusion tube is provided on one side of the detection port in the installation cavity, and a locking component for clamping and locking the infusion tube is provided on one side of the lock hole; the locking component includes a locking block that moves horizontally and linearly in the installation cavity, a rotating motor fixedly installed in the installation cavity and connected to the detection component signal, and a transmission component that converts the rotational motion into a linear motion that drives the locking block to move closer to or away from the infusion tube; the rotating motor is connected to the locking block through the transmission component.

2. The automatic locking device for an infusion tube according to claim 1, characterized in that: A limiting portion is provided on one side or both sides of the locking block in the installation cavity to prevent the locking block from deviating from a preset moving track.

3. The automatic locking device for an infusion tube according to claim 1 or 2, characterized in that: The transmission assembly includes a connecting block fixedly connected to the output shaft of the rotating motor; a push rod extending toward the locking block is eccentrically arranged on a side surface of the connecting block facing the locking block; a first sliding groove is provided on the locking block along its width direction for the push rod to be inserted and for the push rod to move back and forth along the width of the locking block.

4. The automatic locking device for an infusion tube according to claim 1, characterized in that: The outer surface of the shell is also movably provided with a clamping plate for opening or closing the slot; the shell is provided with an elastic reset member for providing the clamping plate with elastic force to close the slot.

5. The automatic locking device for an infusion tube according to claim 4, characterized in that: The clamping plate is slidably connected or rotatably connected to the shell.

6. The automatic locking device for an infusion tube according to claim 5, characterized in that: When the clamp is slidably connected to the shell, the lower surface of the clamp is provided with a slider extending toward the shell; the shell is provided with a second slide groove for the slider to pass through and slidably connected therewith on one side of the card slot; the second slide groove is perpendicular to the card slot; the lower end of the slider passing through the second slide groove is also provided with a limiting protrusion to prevent the clamp from detaching from the shell outward.

7. The automatic locking device for an infusion tube according to claim 6, characterized in that: The housing is also provided with a stop block corresponding to the clamping plate on the other side of the clamping slot.

8. The automatic locking device for an infusion tube according to claim 7, characterized in that: The second slide groove is provided with a first gear position and a second gear position which are interconnected; when the slider slides to the first gear position, the front end face of the clamping plate abuts against a side surface of the stop block, and the clamping plate covers the slot to close the slot opening; when the slider slides to the second gear position, the clamping plate is located on the side of the slot away from the stop block, and the slot opening of the slot is in an open state.

9. The automatic locking device for an infusion tube according to claim 6, characterized in that: A clamping block is provided on the lower surface of the clamping plate at one end facing the slot; a guide groove is provided on the shell for the clamping block to be inserted into and connected to the slot; one end of the elastic return member abuts against the side surface of the clamping block facing away from the slot, and the other end abuts against the inner wall of the shell.

10. The automatic locking device for an infusion tube according to claim 7 or 8, characterized in that: A battery and a main control board are also provided in the installation cavity; a switch module electrically connected to the main control board is movably provided on the stop block; the main control board and the switch module are located on one side of the card slot; the locking assembly is located on the other side of the card slot; the battery, the detection assembly and the rotating motor are all electrically connected to and controlled by the main control board.

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