An infusion device with automatic switching, interception and summoning and its use method

Abstract

The present invention discloses an infusion device capable of automatic switching, interception, and summoning, and a method for using the device. The device comprises first and second infusion bottles / bags, a wireless summoner, a base plate, first and second infusion branches, and an infusion main pipe. The wireless summoner comprises a wireless signal transmitting and receiving module, a summoning bell, and a summoning light. The base plate is respectively equipped with first and second liquid detection elements, first and second interception assemblies, a power supply, and first and second relays. The first and second liquid detection elements are respectively used to detect whether a liquid medicine flows through the infusion main pipe and the first infusion branch pipe. The first and second relays are respectively used to connect the first and second interception assemblies to the power supply. The first and second interception assemblies are respectively used to block the infusion main pipe and the second infusion branch pipe. The present invention realizes the functions of online automatic switching of infusion, automatic interception, and summoning, improves infusion efficiency, and can also prevent blood from flowing back through the infusion pipe, thereby reducing the occurrence of medical accidents and avoiding medical disputes.

Description

Technical Field

[0001] The present invention relates to the technical field of infusion, in particular to an infusion device with automatic switching, interception and summoning functions and a method of using the same. Background Art

[0002] In clinics, hospitals, and other medical institutions, intravenous infusion, also known as intravenous injection, is a common treatment modality. This involves administering large doses of medication via intravenous drip, typically over 100ml at a time. The medication is typically packaged in glass or plastic infusion bottles or bags. During use, the drip rate is adjusted using an infusion pump, ensuring a continuous and steady infusion of the medication.

[0003] During infusions, there are often many patients and relatively few or busy medical staff, or the medical staff are absent. Consequently, after the liquid in the infusion bottle is completely discharged, medical staff cannot arrive in time to remove the needle, tubing, and bottle, or replace the bottle. This results in inefficient infusions and can lead to conflicts between doctors and patients. When the needle is not removed promptly due to negligence on the part of the patient or medical staff, serious consequences can occur, such as blood flowing back through the tubing, causing medical accidents and even endangering the patient's life, leading to disputes between doctors and patients. Summary of the Invention

[0004] The purpose of the present invention is to overcome the defects and shortcomings of the existing technology and provide an infusion device with automatic switching, interception and summoning and a method of using the same, which can realize the functions of online automatic switching of infusion, automatic interception and summoning to improve infusion efficiency, and can also prevent blood from flowing back through the infusion tube, thereby reducing the occurrence of medical accidents and avoiding medical disputes.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An infusion device with automatic switching, interception and summoning is arranged on the patient side, including a first infusion bottle / bag and a second infusion bottle / bag storing liquid medicine, a wireless summoner and a base plate, wherein the first infusion bottle / bag and the second infusion bottle / bag are respectively connected to a first infusion branch pipe and a second infusion branch pipe, the front ends of the first infusion branch pipe and the second infusion branch pipe are merged into one place and connected to the drip pot and then connected to the infusion main pipe, the wireless summoner includes a wireless signal transmitting module, a wireless signal receiving module, a summoning bell and a summoning light, and is characterized in that: the first liquid detection element, the first interception component, the second liquid detection element, the first interception component, the second liquid detection element, the first interception component and the second liquid detection element are respectively installed on the base plate. The wireless signal transmission module is mounted on a substrate, wherein the first liquid detection element and the second liquid detection element are respectively used to detect whether there is liquid medicine flowing through the infusion main pipe and the first infusion branch pipe. The first relay and the second relay are respectively electrically connected to the first liquid detection element and the second liquid detection element on the one hand, and are respectively used to connect the first and second shutoff components to the power supply on the other hand. The first and second shutoff components are respectively used to block the infusion main pipe and the second infusion branch pipe.

[0007] Furthermore, the first liquid detection element and the second liquid detection element are both non-contact pipeline liquid level sensors, and the first liquid detection element and the second liquid detection element are fixedly installed on one side of the bottom and the upper part of the substrate respectively.

[0008] Furthermore, the two non-contact pipeline liquid level sensors are both fixedly connected with pipe clamps for correspondingly fixing the first infusion branch pipe and the infusion main pipe.

[0009] Furthermore, the first shut-off assembly includes a first shell fixedly mounted on the substrate and arranged along the width direction of the substrate, the front end of the first shell is fixedly connected to a first stop seat located above the first liquid detection element, a first channel for the infusion pipe to pass through is provided between the front end of the first shell and the first stop seat, the interior of the first shell is provided with a first locking tongue that can extend from the front end of the first shell and retract into the interior of the first shell, a first spring is connected between the rear end of the first locking tongue and the rear end inner wall of the first shell, and a first positioning hole is provided on the first locking tongue; a first cylinder communicating with the interior thereof is provided in the middle part of the upper end of the first shell, a first pin extending upward is provided inside the first cylinder, and the first pin A second spring is connected between the middle part of the column and the top inner wall of the first cylinder; a first push-pull DC electromagnet is provided above the first shell, and the first push-pull DC electromagnet is electrically connected to the power supply through the first relay. The iron core of the first push-pull DC electromagnet extends downward, pressing the top of the first pin column, so that the bottom end of the first pin column is inserted into the first positioning hole, which is used to prevent the first lock tongue from extending from the front end of the first shell, and a third spring is connected between the iron core of the first push-pull DC electromagnet and the shell of the first push-pull DC electromagnet; a first strip groove is provided on the rear side of the upper end side wall of the first shell, and the rear end of the first lock tongue is fixedly connected to the first paddle extending from the front end of the first strip groove.

[0010] Furthermore, the second shut-off assembly includes a second shell fixedly mounted on the substrate and arranged along the width direction of the substrate, the front end of the second shell is fixedly connected to a second stop seat located above the second liquid detection element, a second channel for the second infusion branch to pass through is provided between the front end of the second shell and the second stop seat, the interior of the second shell is provided with a second locking tongue that can extend from the front end of the second shell and retract into the interior of the second shell, a fourth spring is connected between the front end of the second locking tongue and the front end inner wall of the second shell, and a second positioning hole is provided on the second locking tongue; a second cylinder communicating with the interior thereof is provided in the middle part of the upper end of the second shell, a second pin extending upward is provided inside the second cylinder, and the second A fifth spring is connected between the middle part of the pin and the top inner wall of the second cylinder; a second push-pull DC electromagnet is provided above the second shell, and the second push-pull DC electromagnet is electrically connected to the power supply through the second relay. The iron core of the second push-pull DC electromagnet extends downward, pressing the top of the second pin, so that the bottom end of the second pin is inserted into the second positioning hole, which is used to prevent the second lock tongue from retracting into the interior of the second shell, and a sixth spring is connected between the iron core of the second push-pull DC electromagnet and the shell of the second push-pull DC electromagnet; a second strip groove is provided on the rear side of the upper end side wall of the second shell, and the rear end of the second lock tongue is fixedly connected to a second paddle extending from the rear end of the second strip groove.

[0011] Furthermore, the wireless signal receiving module, the call bell and the call light are all arranged on the medical side. When the first liquid detection element detects that no liquid is flowing through the infusion main tube, a wireless signal is transmitted through the wireless signal transmitting module. After the wireless signal receiving module receives the wireless signal, it triggers the call bell to ring and simultaneously triggers the call light to light up or flash.

[0012] Furthermore, the first infusion branch tube, the second infusion branch tube and the infusion main tube are all made of soft tubes.

[0013] Furthermore, the first relay and the second relay are both normally open relays.

[0014] Furthermore, a hanging ear is installed on the top of the base plate for hanging on a hook at a certain height from the ground; and an insert is installed on the bottom end of the base plate for inserting into the top end of a vertical pole set on the ground.

[0015] A method for using an infusion device capable of automatic switching, interception, and summoning, characterized in that it specifically comprises the following steps:

[0016] S1. Assemble the infusion set: First, connect the first infusion bottle / bag and the second infusion bottle / bag to one end of the first infusion branch and the second infusion branch, respectively. Then, connect the other ends of the first infusion branch and the second infusion branch to the infusion main pipe through the tee and the drip pot in sequence;

[0017] S2. Installing the infusion set: Pass the main infusion tube through the tube clamp on the first liquid detection element and secure it therein, then pass the main infusion tube through the first passage; pass the first branch infusion tube through the tube clamp on the second liquid detection element and secure it therein; lift the second pin and push the second paddle backward, causing the second locking tongue to retract into the second housing; then, after passing the second branch infusion tube through the second passage, push the second paddle forward, causing the second locking tongue to extend from the front end of the second housing, locking the second branch infusion tube between the second locking tongue and the second stop, thereby blocking the second branch infusion tube;

[0018] S3 infusion: After inserting the needle into the patient's vein, open the flow regulator connected to the infusion main, and infuse the first infusion bottle / bag;

[0019] S4. Switching: When all the liquid stored in the first infusion bottle / bag has been delivered, and no more liquid is flowing through the first infusion branch, the second liquid detection element sends a signal to the second relay, which closes, energizing the coil of the second push-pull DC electromagnet. The iron core of the second push-pull DC electromagnet retracts and rises, causing the second pin to spring upward and rise. The second locking tongue rebounds and retracts into the interior of the second housing, releasing the lock on the second infusion branch. The second infusion branch is now conducting, and infusion is switched to the second infusion bottle / bag.

[0020] S5. Interception and summons: When all the stored liquid medicine in the second infusion bottle / bag is discharged, no liquid medicine flows through the infusion main pipe. On the one hand, the first liquid detection element sends a signal to the first relay, the first relay is closed, the coil of the first push-pull DC electromagnet is energized, the iron core of the first push-pull DC electromagnet retracts and rises, the first pin is bounced up and raised, the first lock tongue pops out and extends from the front end of the first shell, locking the infusion main pipe between the first lock tongue and the first stop seat, blocking the infusion main pipe to prevent blood in the blood vessels from flowing back through the infusion main pipe; on the other hand, a wireless signal is transmitted through the wireless signal transmitting module. After the wireless signal receiving module receives the wireless signal, it triggers the summon bell to ring and triggers the summon light to light up or flash, summoning medical staff.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention adopts two infusion bottles / bags, an infusion device mainly composed of two infusion branches and an infusion main pipe, and a wireless summoner composed of a wireless signal transmitting module, a wireless signal receiving module, a summoning bell and a summoning light. At the same time, two liquid detection elements are respectively used to detect whether there is liquid flowing through the infusion main pipe and the first infusion branch pipe, two interception components are respectively used to block the infusion main pipe and the second infusion branch pipe, and two relays are respectively used to control the on and off of the power supply circuits of the two interception components. When in use, one of the infusion bottles / bags is kept on for infusion, and the other infusion bottle / bag is blocked. After the infusion of the liquid bottle / bag is completed, it switches to another infusion bottle / bag for infusion, realizing the function of online automatic switching of infusion, and the infusion can be continued without waiting and unnecessary operations, thereby improving the infusion efficiency; after the infusion of the other infusion bottle / bag is completed, the infusion tube is blocked in time, and a summoning signal is sent to the medical staff, realizing the function of online automatic interception and summoning, which can prevent the blood from flowing back through the infusion tube, so that the patient can operate safely when he is unable to take care of himself and there is no nurse, and realize the whole infusion, thereby reducing the occurrence of medical accidents, avoiding medical disputes, and reducing the workload of medical staff and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural diagram of embodiment 1 of the present invention.

[0024] Figure 2 Schematic diagram of the structure of the first liquid detection element or the second liquid detection element in the first embodiment of the present invention.

[0025] Figure 3 Schematic diagram of the structure of the first cut-off switch in embodiment 1 of the present invention.

[0026] Figure 4 Schematic diagram of the structure of the second cut-off switch in embodiment 1 of the present invention.

[0027] Figure 5 This is a block diagram of the electrical control principle of embodiment 1 of the present invention.

[0028] Figure 6 This is a structural diagram of embodiment 2 of the present invention. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example 1

[0031] See also Figure 1-5 An infusion device with automatic switching, interception and summoning is arranged on the patient side, including a first infusion bottle / bag 1 and a second infusion bottle / bag 2 storing liquid medicine, a wireless summoner and a base plate 20. The first infusion bottle / bag 1 and the second infusion bottle / bag 2 are respectively connected to a first infusion branch tube 3 and a second infusion branch tube 4. The front ends of the first infusion branch tube 3 and the second infusion branch tube 4 are merged at one point and connected to a drip pot 5 and then to an infusion main tube 6. The wireless summoner includes a wireless signal transmitting module 7, a wireless signal receiving module 8, a summoning bell 9 and a summoning light 10. The base plate 20 is respectively installed with a first liquid detection element 11, a first interception component 12, and a second liquid detection element 13. , a second shut-off component 14, a power supply 15, a first relay 16 and a second relay 17, the wireless signal transmission module 7 is installed on the substrate 20, the first liquid detection element 11 and the second liquid detection element 13 are respectively used to detect whether there is liquid flowing through the infusion main pipe 6 and the first infusion branch pipe 3, the first relay 16 and the second relay 17 are respectively electrically connected to the first liquid detection element 11 and the second liquid detection element 13 on the one hand, and on the other hand, are respectively used to connect the first shut-off component 12 and the second shut-off component 14 to the power supply 15, and the first shut-off component 12 and the second shut-off component 14 are respectively used to block the infusion main pipe 6 and the second infusion branch pipe 4.

[0032] In this embodiment, the first liquid detection element 11 and the second liquid detection element 13 both adopt non-contact pipeline liquid level sensors, which can respectively detect whether there is liquid medicine passing through the infusion main pipe 6 and the first infusion branch pipe 3, thereby determining whether there is liquid medicine flowing through the infusion main pipe 6 and the first infusion branch pipe 3. The first liquid detection element 11 and the second liquid detection element 13 are respectively fixedly installed on one side of the bottom and the upper part of the substrate 20.

[0033] In this embodiment, the two non-contact pipeline liquid level sensors are fixedly connected with pipe clamps 18 for correspondingly fixing the first infusion branch pipe 3 and the infusion main pipe 6, which can pass through and fix the first infusion branch pipe 3 and the infusion main pipe 6.

[0034] In this embodiment, the first shut-off assembly 12 includes a first shell 121 fixedly mounted on the substrate 20 and arranged along the width direction of the substrate 20, the front end of the first shell 121 is fixedly connected to a first stop seat 122 located above the first liquid detection element 11, and a first channel 123 for the infusion pipe 6 to pass through is provided between the front end of the first shell 121 and the first stop seat 122, the interior of the first shell 121 is provided with a first locking tongue 124 that can extend from the front end of the first shell 121 and retract into the interior of the first shell 121, a first spring 125 is connected between the rear end of the first locking tongue 124 and the rear end inner wall of the first shell 121, and a first positioning hole (not shown in the figure) is provided on the first locking tongue 124; the middle part of the upper end of the first shell 121 is provided with a first cylinder 126 communicated with the interior thereof, and the interior of the first cylinder 126 is provided with a first pin 127 protruding upward, and the first pin A second spring 128 is connected between the middle part of 127 and the top inner wall of the first cylinder 126; a first push-pull DC electromagnet 129 is provided above the first shell 121, and the first push-pull DC electromagnet 129 is electrically connected to the power supply 15 through the first relay 16. The iron core 1291 of the first push-pull DC electromagnet 129 extends downward and presses the top of the first pin 127, so that the bottom end of the first pin 127 is inserted into the first positioning hole, which is used to prevent the first lock tongue 124 from extending from the front end of the first shell 121. A third spring 1210 is connected between the iron core 1291 of the first push-pull DC electromagnet 129 and the shell 1292 of the first push-pull DC electromagnet 129; a first strip groove 1211 is provided on the rear side of the upper end side wall of the first shell 121, and the rear end of the first lock tongue 124 is fixedly connected to the first paddle 1212 extending from the front end of the first strip groove 1211.

[0035] In this embodiment, the second shut-off assembly 14 includes a second shell 141 fixedly mounted on the substrate 20 and arranged along the width direction of the substrate 20, the front end of the second shell 141 is fixedly connected to a second stop seat 142 located above the second liquid detection element 13, and a second channel 143 for the second infusion branch 4 to pass through is provided between the front end of the second shell 141 and the second stop seat 142, the interior of the second shell 141 is provided with a second locking tongue 144 that can extend from the front end of the second shell 141 and retract into the interior of the second shell 141, a fourth spring 145 is connected between the front end of the second locking tongue 144 and the front end inner wall of the second shell 141, and a second positioning hole (not shown in the figure) is provided on the second locking tongue 144; the middle part of the upper end of the second shell 141 is provided with a second cylinder 146 communicated with the interior thereof, and the interior of the second cylinder 146 is provided with a second pin 147 protruding upward, and the second pin A fifth spring 148 is connected between the middle part of the column 147 and the top inner wall of the second cylinder 146; a second push-pull DC electromagnet 149 is provided above the second shell 141, and the second push-pull DC electromagnet 149 is electrically connected to the power supply 15 through the second relay 17. The iron core 1491 of the second push-pull DC electromagnet 149 extends downward and presses the top of the second pin 147, so that the bottom end of the second pin 147 is inserted into the second positioning hole, which is used to prevent the second lock tongue 246 from retracting into the interior of the second shell 141, and a sixth spring 1410 is connected between the iron core 1491 of the second push-pull DC electromagnet 149 and the shell 1492 of the second push-pull DC electromagnet 149; a second strip groove 1411 is provided on the rear side of the upper end side wall of the second shell 141, and the rear end of the second lock tongue 144 is fixedly connected to a second paddle 1412 extending from the rear end of the second strip groove 1411.

[0036] In this embodiment, the wireless signal receiving module 8, the call bell 9 and the call light 10 are all arranged on the medical side. When the first liquid detection element 11 detects that no liquid medicine is flowing through the infusion main tube 6, a wireless signal is transmitted through the wireless signal transmitting module 7. After the wireless signal receiving module 8 receives the wireless signal, it triggers the call bell 9 to ring and simultaneously triggers the call light 10 to light up or flash.

[0037] In this embodiment, the first infusion branch pipe 3, the second infusion branch pipe 4 and the infusion main pipe 6 are all made of soft tubes for easy installation.

[0038] In this embodiment, the first relay 16 and the second relay 17 are both normally open relays.

[0039] A method for using an infusion device with automatic switching, interception, and summons, specifically comprising the following steps:

[0040] 1. Assemble the infusion set: First, connect the first infusion bottle / bag 1 and the second infusion bottle / bag 2 to one end of the first infusion branch tube 3 and the second infusion branch tube 4 respectively. Then, connect the other ends of the first infusion branch tube 3 and the second infusion branch tube 4 to the infusion main tube 6 through the three-way pipe 19 and the drip pot 5 in sequence to form the infusion set.

[0041] 2. Install the infusion set: First, pass the infusion main pipe 6 through and clamp it into the pipe clamp 18 on the first liquid detection element 11, and pass the infusion main pipe 6 through the first channel 123; pass the first infusion branch pipe 3 through and clamp it into the pipe clamp 18 on the second liquid detection element 13.

[0042] Next, the second pin 147 is manually lifted so that the bottom end of the second pin 147 is disengaged from the second positioning hole, the fifth spring 148 retracts, the iron core 1491 of the second push-pull DC electromagnet 149 is lifted, and the sixth spring 1410 is compressed.

[0043] Then, the second paddle 1412 is moved backward, causing the second locking tongue 144 to retract into the second housing 141, and the fourth spring 145 to expand. After the second infusion branch tube 4 is passed through the second passage 143, the second paddle 1412 is moved forward, causing the second locking tongue 144 to extend from the front end of the second housing 141, locking the second infusion branch tube 4 between the second locking tongue 144 and the second stop seat 142, thereby blocking the second infusion branch tube 4. At this time, the fourth spring 145 is compressed, and the iron core 1491 of the second push-pull DC electromagnet 149 extends downward, pressing against the top end of the second pin 147, causing the bottom end of the second pin 147 to insert into the second positioning hole. The fifth spring 148 is stretched, and the sixth spring 1410 is expanded.

[0044] 3. Infusion: After inserting the needle into the patient's vein, turn on the flow rate regulator (not shown in the figure) connected to the infusion main pipe 6, and infuse the solution through the first infusion bottle / bag 1.

[0045] 4. Switching: When all the stored liquid medicine in the first infusion bottle / bag 1 is discharged, no liquid medicine flows through the first infusion branch 3, and the second liquid detection element 13 sends a signal to the second relay 17. The second relay 17 is closed, and the coil of the second push-pull DC electromagnet 149 (not shown in the figure) is energized. The iron core 1491 of the second push-pull DC electromagnet 149 retracts and rises, the sixth spring 1410 is compressed, and the fifth spring 148 retracts, causing the second pin 147 to bounce up and rise, and the fourth spring 145 extends, causing the second lock tongue 144 to rebound and retract into the inside of the second shell 141, releasing the lock on the second infusion branch 4. The second infusion branch 4 is connected, and the infusion is switched to the second infusion bottle / bag 2, thereby realizing the function of online automatic switching of infusion, and the infusion can be continuously performed without waiting and unnecessary operations, thereby improving the infusion efficiency.

[0046] 5. Interception and summons: When all the stored liquid in the second infusion bottle / bag 2 is discharged, no liquid flows through the infusion main pipe 6, and the first liquid detection element 11 sends a signal to the first relay 16 on the one hand. The first relay 16 is closed, and the coil of the first push-pull type DC electromagnet 129 (not shown in the figure) is energized. The iron core 1291 of the first push-pull type DC electromagnet 129 retracts and lifts, the third spring 1210 is compressed, the second spring 128 retracts, the first pin 127 bounces up and lifts, and the first spring 125 extends, so that the first locking tongue 124 pops out and extends from the front end of the first shell 121, locking the infusion main pipe 6 between the first locking tongue 124 and the first stop seat 122, blocking the infusion main pipe 6 and preventing blood from flowing back through the infusion main pipe 6, thereby realizing the function of online automatic interception, so that the patient can operate safely when he is unable to take care of himself and there is no nurse, and realize the whole infusion, thereby reducing the occurrence of medical accidents and avoiding medical disputes;

[0047] On the other hand, the first liquid detection element 11 transmits a wireless signal through the wireless signal transmitting module 7. After the wireless signal receiving module 8 receives the wireless signal, it triggers the summoning bell 9 to ring and simultaneously triggers the summoning light 10 to light up or flash, summoning medical staff, thereby realizing the function of online summoning, which can reduce the workload of medical staff and improve work efficiency.

[0048] It should be noted that the wireless signal receiving module 8, the call bell 9 and the call light 10 should be set in the same shell, and a reset button (not shown in the figure) should also be installed on the shell. After the medical staff presses the reset button, the call bell 9 and the call light 10 are both turned off.

[0049] Furthermore, the manual reset operation of the first shut-off assembly 12 and the second shut-off assembly 14 can be achieved by turning the corresponding paddles.

[0050] In addition, this embodiment is also applicable to the infusion of three or more infusion bottles / bags. It is only necessary to add a corresponding number of liquid detection elements, interception components and relays, and increase the capacity of the power supply 15. The corresponding structure, connection relationship, position relationship and matching relationship as well as the method of use are the same as above and will not be repeated here.

[0051] Normally, a patient should receive no more than four infusion bottles / bags at a time.

[0052] Example 2

[0053] See also Figure 6In this embodiment, a hanging ear 21 is installed at the top end of the base plate 20 for hanging on a hook (not shown in the figure) at a certain height from the ground, thereby enabling the entire infusion device to be hung; in addition, a cannula 22 is installed at the bottom end of the base plate 20 for being inserted into the top end of a vertical pole (not shown in the figure) set on the ground, thereby enabling the entire infusion device to be placed on the ground.

[0054] Whether it is the above-mentioned hanging setting or the floor setting, it needs to be selected according to specific usage needs and is not limited here.

[0055] The other components and structures of this embodiment are the same as those of the first embodiment, and the working mode or usage method of this embodiment is also the same as that of the first embodiment, which will not be described in detail here.

[0056] Although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0057] Therefore, the above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application; that is, all equivalent modifications made according to the scope of the claims of the present application are within the scope of protection of the claims of the present application.

Claims

1. An infusion device with automatic switching, interception, and summons, disposed on the patient side, comprising a first infusion bottle / bag and a second infusion bottle / bag storing liquid medicine, a wireless summoner, and a base plate. The first and second infusion bottles / bags are respectively connected to a first and second infusion branch tubes, the front ends of the first and second infusion branch tubes converging at one point and connected to a drip pot and then to an infusion main tube. The wireless summoner comprises a wireless signal transmitting module, a wireless signal receiving module, a summons bell, and a summons light, characterized in that: The substrate is respectively mounted with a first liquid detection element, a first shutoff assembly, a second liquid detection element, a second shutoff assembly, a power supply, a first relay, and a second relay. The wireless signal transmission module is mounted on the substrate. The first liquid detection element and the second liquid detection element are respectively configured to detect whether liquid medicine flows through the infusion main pipe and the first infusion branch pipe. The first relay and the second relay are respectively electrically connected to the first liquid detection element and the second liquid detection element, and are respectively configured to connect the first shutoff assembly and the second shutoff assembly to the power supply. The first shutoff assembly and the second shutoff assembly are respectively configured to block the infusion main pipe and the second infusion branch pipe. The first shut-off assembly includes a first shell fixedly mounted on the substrate and arranged along the width direction of the substrate, the front end of the first shell is fixedly connected to a first stop seat located above the first liquid detection element, a first channel for the infusion pipe to pass through is provided between the front end of the first shell and the first stop seat, the interior of the first shell is provided with a first locking tongue that can extend from the front end of the first shell and retract into the interior of the first shell, a first spring is connected between the rear end of the first locking tongue and the rear end inner wall of the first shell, and a first positioning hole is provided on the first locking tongue; a first cylinder communicating with the interior thereof is provided in the middle part of the upper end of the first shell, a first pin extending upward is provided in the interior of the first cylinder, and the center of the first pin A second spring is connected between the first part and the top inner wall of the first cylinder; a first push-pull DC electromagnet is provided above the first shell, and the first push-pull DC electromagnet is electrically connected to the power supply through the first relay. The iron core of the first push-pull DC electromagnet extends downward and presses the top of the first pin so that the bottom end of the first pin is inserted into the first positioning hole, which is used to prevent the first lock tongue from extending from the front end of the first shell, and a third spring is connected between the iron core of the first push-pull DC electromagnet and the shell of the first push-pull DC electromagnet; a first strip groove is provided on the rear side of the upper end side wall of the first shell, and the rear end of the first lock tongue is fixedly connected to a first paddle extending from the front end of the first strip groove; The second shut-off assembly includes a second shell fixedly mounted on the substrate and arranged along the width direction of the substrate, the front end of the second shell is fixedly connected to a second stop seat located above the second liquid detection element, a second channel for the second infusion branch to pass through is provided between the front end of the second shell and the second stop seat, the interior of the second shell is provided with a second locking tongue that can extend from the front end of the second shell and retract into the interior of the second shell, a fourth spring is connected between the front end of the second locking tongue and the front end inner wall of the second shell, and a second positioning hole is provided on the second locking tongue; a second cylinder is provided in the middle part of the upper end of the second shell and communicates with the interior thereof, a second pin is provided in the interior of the second cylinder that passes through upward, and the second pin A fifth spring is connected between the middle part and the top inner wall of the second cylinder; a second push-pull DC electromagnet is provided above the second shell, and the second push-pull DC electromagnet is electrically connected to the power supply through the second relay. The iron core of the second push-pull DC electromagnet extends downward, pressing the top of the second pin so that the bottom end of the second pin is inserted into the second positioning hole, which is used to prevent the second lock tongue from retracting into the interior of the second shell, and a sixth spring is connected between the iron core of the second push-pull DC electromagnet and the shell of the second push-pull DC electromagnet; a second strip groove is provided on the rear side of the upper end side wall of the second shell, and the rear end of the second lock tongue is fixedly connected to a second paddle extending from the rear end of the second strip groove.

2. The infusion device with automatic switching, interception and summons according to claim 1, characterized in that: The first liquid detection element and the second liquid detection element are both non-contact pipeline liquid level sensors, and the first liquid detection element and the second liquid detection element are fixedly installed on one side of the bottom and the upper part of the substrate respectively.

3. The infusion device with automatic switching, interception and summons according to claim 2, characterized in that: The two non-contact pipeline liquid level sensors are both fixedly connected with pipe clamps for correspondingly fixing the first infusion branch pipe and the infusion main pipe.

4. The infusion device with automatic switching, interception and summons according to claim 1, characterized in that: The wireless signal receiving module, call bell and call light are all arranged on the medical side. When the first liquid detection element detects that no liquid is flowing through the infusion main tube, a wireless signal is transmitted through the wireless signal transmitting module. After the wireless signal receiving module receives the wireless signal, it triggers the call bell to ring and the call light to light up or flash.

5. The infusion device with automatic switching, interception and summons according to claim 1, characterized in that: The first infusion branch pipe, the second infusion branch pipe and the infusion main pipe are all made of soft tubes.

6. The infusion device with automatic switching, interception and summons according to claim 1, characterized in that: The first relay and the second relay are both normally open relays.

7. The infusion device with automatic switching, interception and summons according to claim 1, characterized in that: The top end of the base plate is provided with a hanging ear for hanging on a hook at a certain height from the ground; the bottom end of the base plate is provided with an insert tube for inserting into the top end of a vertical pole arranged on the ground.

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