Automatic cutoff mechanism of infusion apparatus

Abstract

The utility model discloses an automatic cutoff mechanism of an infusion apparatus, which belongs to the technical field of civil medical devices and comprises a dropper, an auxiliary component is arranged in the dropper, a shell is mounted on the side surface of the dropper, and a mounting component is connected to the side top of the shell. The infusion hose is sleeved with the fixing clamp on the side face of the shell, then the threaded rod is rotated to be in meshed connection with the shell, the threaded rod can drive the movable clamp to move through the positioning sleeve, the shell can be installed and limited on the side face of the dropper through matched clamping of the movable clamp and the fixing clamp, and the service life of the firm connection device is longer; the auxiliary assembly is arranged, the floating plate drives the blocking block to move upwards under the buoyancy effect of liquid medicine in the dropper, the dropper can be normally used for infusion, after the liquid medicine in the dropper flows out, the floating plate can drive the blocking block to move downwards under the gravity effect to block and cut off an infusion hose, and infusion safety can be higher through double cut-off operation.

Description

Technical Field

[0001] The utility model belongs to the technical field of civil medical devices, and in particular relates to an automatic flow cut-off mechanism for an infusion set. Background Art

[0002] In today's society, medical conditions are far from adequate. In an infusion station, two or three nurses often have to take care of dozens of infusion patients. Although current infusion devices have manual shut-off devices, an infusion device with automatic flow cut-off function is needed to reduce the workload of nurses.

[0003] Chinese patent application No. 201521052421.5 discloses a mechanism for automatic flow cut-off of infusion, which is fixed at the drip bucket position of the infusion device, and includes a light plastic buckle, an eddy current device, a controller and a flow cut-off device, wherein the light plastic buckle, the eddy current device and the flow cut-off device are all arranged on one side of the controller, and the other end of the light plastic buckle is fixed to the infusion hose at the upper end of the drip bucket, the eddy current device is wrapped and arranged on the drip bucket, and the flow cut-off device is arranged on the infusion hose at the lower end of the drip bucket. The utility model can automatically close the infusion tube and send out a chirp to notify the nurse station under the condition of only adding a simple mechanism that is light, harmless, easy to install and can be used multiple times, so as to ensure that part of the liquid can be retained, thereby preventing air from entering the human body after the liquid is infused. In the absence of manual care, the purpose of protecting the human body is achieved, and the work pressure of medical staff is also reduced.

[0004] In the above-mentioned public patent, the two electromagnets can cut off the infusion flow after being energized. However, since the infusion hose cannot be limited, the infusion hose is easily pulled by external force and deviates, resulting in the inability of the electromagnet to accurately cut off the flow. The controller is installed on the infusion hose at the upper end of the drip bucket by means of a plastic clip. The plastic clip is prone to aging and damage after long-term use, resulting in poor performance. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides an automatic flow cut-off mechanism for an infusion set, which has the characteristics of accurate flow cut-off and long service life.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic flow cut-off mechanism for an infusion device, comprising a dropper, both ends of the dropper are connected to infusion hoses, an auxiliary component is arranged inside the dropper, a shell is installed on the side of the dropper, a mounting component is connected to the side top of the shell, an eddy current device is arranged below the mounting component, a flow cut-off device is installed below the eddy current device, and two electromagnets are connected to the side of the flow cut-off device.

[0007] Preferably, the installation assembly includes a limiting assembly, a fixed clamp, a movable clamp, a positioning sleeve and a screw, wherein the fixing clamp is connected to the side top of the shell, the screw is embedded in the inner top of the shell, the side end of the screw is provided with a positioning sleeve, the side of the positioning sleeve is connected to the movable clamp, the side of the flow-breaking device is connected to the limiting assembly, and the side end of the fixed clamp and the movable clamp are both semi-arc structures.

[0008] Preferably, a sliding block is connected to the side of the movable clamp, a sliding groove is provided inside the fixed clamp, and the surface of the sliding block is tightly fitted with the inner wall of the sliding groove.

[0009] Preferably, the limiting assembly includes a positioning member, a moving member, a spring, a connecting rod and a control plate, wherein two positioning members are connected to the side of the current cut-off device, a connecting rod is embedded in the inner bottom of the outer shell, the side end of the connecting rod is connected to the control plate, a spring is connected between the control plate and the outer shell, and the side end of the connecting rod is connected to the moving member.

[0010] Preferably, the auxiliary components include a floating plate, a blocking block, a guide rail and a guide block, wherein two guide rails are arranged inside the dropper, guide blocks are embedded inside the guide rails, a floating plate is connected between the two guide blocks, and a blocking block is installed at the bottom of the floating plate.

[0011] Preferably, the blocking block is in a conical structure, and the side of the guide block fits in with the inner wall of the guide rail.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model sets a mounting assembly, sleeves the fixed clip on the side of the shell on the infusion hose, and then rotates the screw. Under the meshing connection between the screw and the shell, the screw can drive the movable clip to move through the positioning sleeve. The movable clip and the fixed clip cooperate to clamp the shell to limit the installation of the shell on the side of the dropper, and the connection is firm and the service life of the device is longer.

[0014] 2. The utility model provides an auxiliary component. Under the buoyancy of the liquid medicine inside the dropper, the float plate drives the block to move upward, and the dropper can be used for infusion normally. When the liquid medicine inside the dropper flows out, the guide block and the guide rail slide to limit the position, and the float plate drives the block to move downward under the action of gravity to block and cut off the infusion hose. The double cut-off operation can make the infusion safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the front view of the utility model;

[0016] Figure 2 This is the front view of the installation component of the utility model;

[0017] Figure 3 This is the front view of the limit assembly of the utility model;

[0018] Figure 4 This is the front view of the auxiliary component of the utility model.

[0019] In the figure: 1. infusion hose; 2. dropper; 3. auxiliary component; 31. floating plate; 32. blocking block; 33. guide rail; 34. guide block; 4. electromagnet; 5. current cut-off device; 6. housing; 7. eddy current device; 8. installation component; 81. limit component; 811. positioning part; 812. moving part; 813. spring; 814. connecting rod; 815. control board; 82. slider; 83. slide groove; 84. fixing clamp; 85. moving clamp; 86. positioning sleeve; 87. screw. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example 1

[0022] See also Figure 1-4 The utility model provides the following technical solutions: an automatic flow cut-off mechanism for an infusion set, comprising a dropper 2, both ends of the dropper 2 are connected to an infusion hose 1, an auxiliary component 3 is arranged inside the dropper 2, a shell 6 is installed on the side of the dropper 2, a mounting component 8 is connected to the side top of the shell 6, an eddy current device 7 is arranged below the mounting component 8, a flow cut-off device 5 is installed below the eddy current device 7, and two electromagnets 4 are connected to the side of the flow cut-off device 5.

[0023] Specifically, the installation component 8 includes a limiting component 81, a fixed clamp 84, a movable clamp 85, a positioning sleeve 86 and a screw 87. The fixed clamp 84 is connected to the side top of the outer shell 6, and the screw 87 is embedded in the inner top of the outer shell 6. The side end of the screw 87 is provided with a positioning sleeve 86, and the side of the positioning sleeve 86 is connected to the movable clamp 85. The side of the current interrupting device 5 is connected to the limiting component 81, and the side end of the fixed clamp 84 and the movable clamp 85 are both semi-arc structures.

[0024] By adopting the above technical solution, the fixing clamp 84 on the side of the shell 6 is put on the infusion hose 1, and then the screw 87 is rotated. Under the meshing connection between the screw 87 and the shell 6, the screw 87 can drive the movable clamp 85 to move through the positioning sleeve 86. The movable clamp 85 and the fixing clamp 84 cooperate to clamp the shell 6 to limit the installation of the side of the dropper 2, and the connection is firm and the service life of the device is longer.

[0025] Specifically, a slider 82 is connected to the side of the movable clamp 85 , a slide groove 83 is provided inside the fixed clamp 84 , and the surface of the slider 82 is tightly fitted to the inner wall of the slide groove 83 .

[0026] By adopting the above technical solution, the sliding limit between the slider 82 and the slide groove 83 can make the movable clamp 85 limited to move and cooperate with the fixed clamp 84 to clamp more stably and firmly.

[0027] Specifically, the limiting assembly 81 includes a positioning member 811, a moving member 812, a spring 813, a connecting rod 814 and a control board 815. Two positioning members 811 are connected to the side of the current cutting device 5, a connecting rod 814 is embedded in the inner bottom of the outer shell 6, the side end of the connecting rod 814 is connected to the control board 815, a spring 813 is connected between the control board 815 and the outer shell 6, and the side end of the connecting rod 814 is connected to the moving member 812.

[0028] By adopting the above technical solution, the infusion hose 1 is placed between the positioning member 811 and the movable member 812. Under the pulling force of the spring 813 on the control board 815, the connecting rod 814 can drive the positioning member 811 and the movable member 812 to close together to limit the infusion hose 1, making it easier for the electromagnet 4 to accurately and stably cut off the flow of the infusion hose 1, thereby improving the use effect of the device.

[0029] When the present embodiment is used, the fixing clamp 84 on the side of the shell 6 is sleeved on the infusion hose 1, and then the screw 87 is rotated. Under the meshing connection between the screw 87 and the shell 6, the slider 82 and the slide groove 83 are slid and limited. The screw 87 can drive the movable clamp 85 to move through the positioning sleeve 86. The movable clamp 85 cooperates with the fixing clamp 84 to clamp the shell 6 so that the shell 6 can be installed and limited on the side of the dropper 2. The connection is firm and the service life of the device is longer. The infusion hose 1 is placed between the positioning member 811 and the moving member 812. Under the pulling force of the spring 813 on the control board 815, the connecting rod 814 can drive the positioning member 811 and the moving member 812 to close to limit the infusion hose 1, so that the electromagnet 4 can accurately and stably cut off the flow of the infusion hose 1, so as to achieve better use effect of the device. The eddy current device 7 is detected on the side of the dropper 2. When the dripping inside the dropper 2 stops, the flow-breaking device 5 will control the two electromagnets 4 to energize and move together to complete the clamping and flow-breaking operation of the infusion hose 1.

[0030] Example 2

[0031] The difference between this embodiment and embodiment 1 is that the auxiliary component 3 includes a floating plate 31, a blocking block 32, a guide rail 33 and a guide block 34, two guide rails 33 are arranged inside the dropper 2, guide blocks 34 are embedded inside the guide rails 33, a floating plate 31 is connected between the two guide blocks 34, and a blocking block 32 is installed at the bottom of the floating plate 31.

[0032] Specifically, the blocking block 32 is in a conical structure, and the side of the guide block 34 fits against the inner wall of the guide rail 33 .

[0033] By adopting the above technical solution, the floating plate 31 drives the blocking block 32 to move upward under the buoyancy of the medicine liquid inside the dropper 2, and the dropper 2 can be used for infusion normally. When the medicine liquid inside the dropper 2 is exhausted, the guide block 34 and the guide rail 33 slide and limit, and the floating plate 31 will drive the blocking block 32 to move downward under the action of gravity to block and cut off the infusion hose 1. The double cut-off operation can make the infusion safer.

[0034] When this embodiment is used, the floating plate 31 drives the blocking block 32 to move upward under the buoyancy of the medicine liquid inside the dropper 2, and the dropper 2 can be used normally for infusion. When the medicine liquid inside the dropper 2 is exhausted, the guide block 34 and the guide rail 33 slide and limit, and the floating plate 31 drives the blocking block 32 to move downward under the action of gravity to block and cut off the infusion hose 1. The double cut-off operation can make the infusion safer.

[0035] The structure and use principle of the infusion hose 1, dropper 2, electromagnet 4, cut-off device 5, shell 6 and eddy current device 7 in the utility model have been disclosed in Chinese patent application No. 201521052421.5 which discloses an automatic infusion cut-off mechanism. The working principle is that the shell 6 is installed on the side of the dropper 2 by a plastic buckle sleeve on the infusion hose 1, and the eddy current device 7 can be detected on the side of the dropper 2. When the dripping inside the dropper 2 stops, the cut-off device 5 will control the two electromagnets 4 to energize and move closer to complete the clamping of the infusion hose 1 to cut off the infusion.

[0036] Working principle and use process of the utility model: When the utility model is used, the fixed clamp 84 on the side of the shell 6 is sleeved on the infusion hose 1, and then the screw 87 is rotated. Under the meshing connection between the screw 87 and the shell 6, the slider 82 and the slide groove 83 are slid and limited. The screw 87 can drive the movable clamp 85 to move through the positioning sleeve 86. The movable clamp 85 and the fixed clamp 84 cooperate to clamp the shell 6 to the side of the dropper 2. The service life of the device is longer. The infusion hose 1 is placed between the positioning piece 811 and the moving piece 812. Under the pulling force of the spring 813 on the control board 815, the connecting rod 814 can drive the positioning piece 811 and the moving piece 812 The closing limits the infusion hose 1, which makes it easier for the electromagnet 4 to accurately and stably cut off the flow of the infusion hose 1, thereby improving the use effect of the device. The eddy current device 7 performs detection on the side of the dropper 2. When the dripping inside the dropper 2 stops, the cut-off device 5 will control the two electromagnets 4 to energize and move closer to complete the clamping and cut-off operation of the infusion hose 1. Under the buoyancy of the liquid medicine inside the dropper 2, the floating plate 31 drives the blocking block 32 to move up, and the dropper 2 can be used for infusion normally. When the liquid medicine inside the dropper 2 is gone, the guide block 34 and the guide rail 33 slide and limit, and the floating plate 31 will drive the blocking block 32 to move down under the action of gravity to seal and cut off the infusion hose 1. The double cut-off operation can make the infusion safer.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic flow cut-off mechanism for an infusion set, comprising a dropper, characterized in that: Both ends of the dropper are connected to infusion hoses, an auxiliary component is arranged inside the dropper, a shell is installed on the side of the dropper, a mounting component is connected to the side top of the shell, an eddy current device is arranged below the mounting component, a current interrupting device is installed below the eddy current device, and two electromagnets are connected to the side of the current interrupting device.

2. The automatic flow cut-off mechanism of an infusion set according to claim 1, characterized in that: The installation assembly includes a limiting assembly, a fixed clamp, a movable clamp, a positioning sleeve and a screw, wherein the fixing clamp is connected to the side top of the shell, the screw is embedded in the inner top of the shell, the side end of the screw is provided with a positioning sleeve, the side of the positioning sleeve is connected to the movable clamp, the side of the current cut-off device is connected to the limiting assembly, and the side end of the fixed clamp and the movable clamp are both semi-arc structures.

3. The automatic flow cut-off mechanism of an infusion set according to claim 2, characterized in that: The side of the movable clamp is connected with a sliding block, and the interior of the fixed clamp is provided with a sliding groove, and the surface of the sliding block is tightly fitted with the inner wall of the sliding groove.

4. The automatic flow cut-off mechanism of an infusion set according to claim 2, characterized in that: The limiting assembly includes a positioning part, a moving part, a spring, a connecting rod and a control plate, wherein two positioning parts are connected to the side of the current cut-off device, a connecting rod is embedded in the inner bottom of the shell, the side end of the connecting rod is connected to the control plate, a spring is connected between the control plate and the shell, and the side end of the connecting rod is connected to the moving part.

5. The automatic flow cut-off mechanism of an infusion set according to claim 1, characterized in that: The auxiliary components include a floating plate, a blocking block, a guide rail and a guide block, wherein two guide rails are arranged inside the dropper, guide blocks are embedded inside the guide rails, a floating plate is connected between the two guide blocks, and a blocking block is installed at the bottom of the floating plate.

6. The automatic flow cut-off mechanism of an infusion set according to claim 5, characterized in that: The blocking block is in a conical structure, and the side edge of the guide block fits in with the inner wall of the guide rail.

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