Medical disposable filtering infusion apparatus

Abstract

The utility model relates to the field of infusion apparatuses, and discloses a medical disposable filtering infusion apparatus which comprises an infusion dropper, the top of the infusion dropper is rotatably connected with a tube cover, the top of the tube cover is communicated with a needle inserting tube, the bottom of the infusion dropper is communicated with an infusion tube, one end of the infusion tube is communicated with an injection needle, and the other end of the infusion tube is communicated with an infusion tube. A flow regulator is mounted on the outer side of the infusion tube, and a filtering assembly is fixedly connected to the interior of the infusion dropper. According to the medical disposable filtering infusion apparatus, by arranging the adjusting mechanism, when liquid medicine is reduced, a first adjusting plate and a second adjusting plate in the adjusting mechanism can move downwards under the action of gravity, then the infusion dropper is closed through contact between the first adjusting plate and the infusion dropper, and after the infusion dropper is closed, the liquid medicine can stop flowing; blood in veins cannot flow back to the infusion hose, a good protection effect is provided, a patient does not need to stare at the infusion set all the time, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of infusion sets, in particular to a medical disposable filtering infusion set. Background Art

[0002] A medical disposable filter infusion set is a medical consumable that has undergone strict aseptic processing and is used to establish a channel between the vein and the drug solution. It is mainly used for clinical gravity infusion. The material of the medical disposable filter infusion set is usually selected from materials that meet medical-grade standards, such as medical polyvinyl chloride (PVC), high-performance polyolefin thermoplastic elastomer (TPE), etc. Under the action of atmospheric pressure, the liquid in the bottle flows into the drip bucket along the thinner infusion hose. When the water column pressure in the drip bucket is greater than the venous pressure, the liquid in the bottle flows into the vein along the hose. When the drug solution flows through the drug solution filter, the insoluble particles in it are retained by the filter membrane, thereby ensuring that the drug solution entering the patient's body is pure and free of impurities.

[0003] When the existing disposable infusion device is used to infuse the patient, blood reflux may occur after the drug is injected. Generally, the patient needs to be observed at all times and the medical staff must remove the needle in advance. The patient cannot get enough rest and is inconvenient for the user. Utility Model Content

[0004] The utility model provides a disposable medical filter infusion set, which has the beneficial effect of automatically stopping infusion, and solves the problem mentioned in the above background technology that when the existing disposable infusion set is used to infuse the patient, blood reflux may occur after the infusion of the liquid medicine is completed, which generally requires the patient to be observed at all times and the medical staff to remove the needle in advance, and the patient cannot get sufficient rest.

[0005] The utility model provides the following technical solution: a medical disposable filtering infusion set, comprising an infusion dropper, wherein the top of the infusion dropper is rotatably connected to a tube cover, the top of the tube cover is connected to a needle tube, the bottom of the infusion dropper is connected to an infusion tube, one end of the infusion tube is connected to an injection needle, a flow regulator is installed on the outside of the infusion tube, the inside of the infusion dropper is fixedly connected to a filter assembly, a first adjustment plate is provided at the bottom of the filter assembly, the outer side of the first adjustment plate is fixedly connected to the infusion dropper, and the top of the first adjustment plate is rotatably connected to an adjustment mechanism.

[0006] As an optional solution of the medical disposable filtering infusion set of the present invention, the filtering component is composed of a fixed frame and a filtering membrane, and the filtering membrane is fixedly connected to the inside of the fixed frame.

[0007] As an optional solution of the medical disposable filter infusion set described in the utility model, the adjustment mechanism includes a second adjustment plate, the top of the second adjustment plate is fixedly connected to the first connecting column, the top of the first connecting column is slidably connected to the second connecting column, one end of the second connecting column passes through the top of the filter assembly, and the second connecting column is rotatably connected to the filter assembly.

[0008] As an optional solution of the medical disposable filtering infusion set of the present invention, the top of the second connecting column is fixedly connected to a connecting frame, and one side of the connecting frame is fixedly connected to the drip cover.

[0009] As an optional solution of the medical disposable filter infusion set of the present invention, a plug-in plate is fixedly connected to the outer side of the first connecting column, a plug-in slot is opened inside the second connecting column, and the plug-in plate is loosely matched with the plug-in slot.

[0010] As an optional solution of the medical disposable filtering infusion set of the present invention, a first filter screen is embedded in the interior of the first adjusting plate, and a second filter screen is embedded in the interior of the second adjusting plate.

[0011] As an optional solution of the medical disposable filter infusion set of the present invention, a sealing plate is fixedly connected to the outside of the infusion dropper, a sealing groove is opened on the inside of the infusion dropper, and the sealing plate is gap-matched with the sealing groove.

[0012] As an optional solution of the medical disposable filtering infusion set of the present invention, a sealing ring is fixedly connected to the outer side of the sealing plate, and the sealing ring is in contact with the sealing groove.

[0013] The utility model has the following beneficial effects:

[0014] 1. This disposable medical filter infusion set is equipped with an adjustment mechanism. When the liquid medicine decreases, the first adjustment plate and the second adjustment plate in the adjustment mechanism will move downward under the action of gravity, and then the infusion dropper will be sealed through the contact between the first adjustment plate and the infusion dropper. After the infusion dropper is sealed, the liquid medicine will stop flowing, and the blood in the vein will not flow back into the infusion hose, providing good protection effect. It also does not require the patient to always stare at the infusion set, saving time and effort.

[0015] 2. The medical disposable filter infusion set is provided with a plug-in plate and a plug-in slot. The plug-in plate and the plug-in slot cooperate so that after the second connecting column rotates, the plug-in plate can drive the first connecting column to rotate, thereby ensuring that the second adjustment plate can be staggered with the first adjustment plate after rotation, so that the liquid medicine can flow smoothly downward into the connecting tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a structural diagram of the present utility model.

[0017] Figure 2 The figure is a schematic diagram of the cross-sectional structure of the infusion dropper of the utility model.

[0018] Figure 3 This is a schematic structural diagram of the staggered state of the first adjustment plate and the second adjustment plate of the present invention.

[0019] Figure 4 This is a schematic diagram of the partial cross-sectional structure of the second connecting column of the present invention.

[0020] Figure 5 For this utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0021] In the figure: 1. Infusion dropper; 2. Tube cover; 3. Insertion tube; 4. Infusion tube; 5. Injection needle; 6. Flow regulator; 701. Fixed frame; 702. Filter membrane; 8. First adjustment plate; 901. Second adjustment plate; 902. First connecting column; 903. Second connecting column; 904. Connecting frame; 10. Plug-in plate; 11. Plug-in slot; 12. First filter screen; 13. Second filter screen; 14. Sealing plate; 15. Sealing slot; 16. Sealing ring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.

[0023] Example 1

[0024] See also Figures 1 to 5 A medical disposable filtering infusion set comprises an infusion dropper 1, the top of the infusion dropper 1 is rotatably connected to a tube cover 2, the top of the tube cover 2 is connected to a needle tube 3, the needle tube 3 is used to be inserted into an infusion bottle or an infusion bag, the bottom of the infusion dropper 1 is connected to an infusion tube 4, one end of the infusion tube 4 is connected to an injection needle 5, a flow regulator 6 is installed on the outside of the infusion tube 4, the inside of the infusion dropper 1 is fixedly connected to a filter assembly, a first adjusting plate 8 is provided at the bottom of the filter assembly, the outer side of the first adjusting plate 8 is fixedly connected to the infusion dropper 1, and the top of the first adjusting plate 8 is rotatably connected to an adjusting mechanism.

[0025] The filter assembly consists of a fixed frame 701 and a filter membrane 702. The filter membrane 702 is the core component of the filter assembly and is made of polycarbonate material with a small pore size. The main function of the filter membrane 702 is to effectively prevent microorganisms such as bacteria, viruses, fungi, as well as impurities such as particulate matter and fiber from entering the patient's body, thereby protecting the patient's safety and preventing contamination and infection during the infusion process. The filter membrane 702 is fixedly connected to the inside of the fixed frame 701.

[0026] The adjustment mechanism includes a second adjustment plate 901, the top of the second adjustment plate 901 is fixedly connected to the first connecting column 902, the top of the first connecting column 902 is slidably connected to the second connecting column 903, the length of the diameter of the second connecting column 903 is greater than the length of the diameter of the first connecting column 902, one end of the second connecting column 903 passes through the filter membrane 702 and extends to the top of the filter assembly, and the second connecting column 903 is rotatably connected to the filter assembly.

[0027] The top of the second connecting column 903 is fixedly connected to a connecting frame 904 , and one side of the connecting frame 904 is fixedly connected to the drip cover.

[0028] The working principle of this embodiment is as follows: when using the infusion set, first insert the insertion needle tube 3 into the liquid bottle, and then the medicine will flow into the infusion dropper 1 through the insertion needle tube 3. When the medicine flows in, it is necessary to rotate the tube cover 2 so that the tube cover 2 drives the second connecting column 903 to rotate, and the second connecting column 903 drives the second adjustment plate 901 to rotate through the first connecting column 902. After the second adjustment plate 901 rotates, the second filter screen 13 inside is aligned with the first filter screen 12 of the first adjustment plate 8 at the bottom. At this time, the medicine can flow normally from the infusion dropper 1 into the connecting tube and be injected into the patient's body through the injection needle 5 by the connecting tube. When the medicine initially enters the infusion dropper 1, you can pinch the infusion dropper 1 and then loosen it. Open, so that a large amount of liquid medicine is input into the infusion dropper 1. A large amount of liquid medicine provides buoyancy to the first regulating plate 8 and the second regulating plate 901, thereby pushing the first regulating plate 8 and the second regulating plate 901 to move upward. When the liquid medicine in the liquid bottle is used up, the liquid medicine in the infusion dropper 1 will gradually decrease. When the liquid medicine is reduced, the first regulating plate 8 and the second regulating plate 901 will move downward under the action of gravity, and then the infusion dropper 1 will be closed through the contact between the first regulating plate 8 and the infusion dropper 1. After the infusion dropper 1 is closed, the liquid medicine will stop flowing, and the blood in the vein will not flow back to the infusion hose, providing good protection effect, and there is no need for the patient to always stare at the infusion device, saving time and effort.

[0029] Example 2

[0030] This embodiment is an improvement made on the basis of the first embodiment. For details, please refer to Figures 1 to 5The outer side of the first connecting column 902 is fixedly connected to the plug board 10, and the inner side of the second connecting column 903 is provided with a plug slot 11, and the plug board 10 is clearance-matched with the plug slot 11.

[0031] By setting the plug-in plate 10 and the plug-in slot 11, the plug-in plate 10 and the plug-in slot 11 cooperate so that after the second connecting column 903 rotates, the plug-in plate 10 can drive the first connecting column 902 to rotate, thereby ensuring that the second adjustment plate 901 can be rotated and staggered with the first adjustment plate 8, so that the medicine can flow smoothly downward into the connecting pipe.

[0032] A first filter screen 12 is embedded in the first adjustment plate 8 , and a second filter screen 13 is embedded in the second adjustment plate 901 . There are multiple first filter screens 12 and second filter screens 13 , and the multiple first filter screens 12 and second filter screens 13 are equidistantly distributed in a ring shape.

[0033] By setting the first filter 12 and the second filter 13, in the initial state, the first filter 12 and the second filter 13 are staggered, the first sealing plate 14 contacts the infusion dropper 1, blocks the infusion dropper 1, and prevents the medicine from flowing into the connecting tube. When the second adjustment plate 901 is rotated, the second adjustment plate 901 is aligned with the first adjustment plate 8, and the first filter 12 and the second filter 13 are connected. At this time, the medicine can pass normally.

[0034] A sealing plate 14 is fixedly connected to the outer side of the infusion dropper 1 , and a sealing groove 15 is provided on the inner side of the infusion dropper 1 , and the sealing plate 14 and the sealing groove 15 are clearance-matched.

[0035] A sealing ring 16 is fixedly connected to the outer side of the sealing plate 14 , and the sealing ring 16 contacts the sealing groove 15 .

[0036] By providing the sealing plate 14 and the sealing groove 15, the sealing plate 14 and the sealing groove 15 can seal the infusion dropper 1 and the tube cover 2 to prevent external air from entering, and the sealing ring 16 can strengthen the connection between the two and further increase the sealing performance.

[0037] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0038] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A medical disposable filter infusion set, comprising an infusion dropper (1), characterized in that: The top of the infusion dropper (1) is rotatably connected to a tube cover (2), the top of the tube cover (2) is connected to an insertion needle tube (3), the bottom of the infusion dropper (1) is connected to an infusion tube (4), one end of the infusion tube (4) is connected to an injection needle (5), a flow regulator (6) is installed on the outside of the infusion tube (4), the inside of the infusion dropper (1) is fixedly connected to a filter assembly, a first regulating plate (8) is provided at the bottom of the filter assembly, the outside of the first regulating plate (8) is fixedly connected to the infusion dropper (1), and the top of the first regulating plate (8) is rotatably connected to an regulating mechanism.

2. The medical disposable filter infusion set according to claim 1, characterized in that: The filter assembly consists of a fixed frame (701) and a filter membrane (702), and the filter membrane (702) is fixedly connected to the inside of the fixed frame (701).

3. The medical disposable filter infusion set according to claim 1, characterized in that: The adjustment mechanism includes a second adjustment plate (901), the top of the second adjustment plate (901) is fixedly connected to a first connecting column (902), the top of the first connecting column (902) is slidably connected to a second connecting column (903), one end of the second connecting column (903) passes through the top of the filter assembly, and the second connecting column (903) is rotatably connected to the filter assembly.

4. The disposable medical filter infusion set according to claim 3, characterized in that: The top of the second connecting column (903) is fixedly connected to a connecting frame (904), and one side of the connecting frame (904) is fixedly connected to the drip cover.

5. The medical disposable filter infusion set according to claim 3, characterized in that: The outer side of the first connecting column (902) is fixedly connected with a plug-in plate (10), and the interior of the second connecting column (903) is provided with a plug-in slot (11), and the plug-in plate (10) is clearance-matched with the plug-in slot (11).

6. The medical disposable filter infusion set according to claim 3, characterized in that: A first filter screen (12) is embedded in the interior of the first adjustment plate (8), and a second filter screen (13) is embedded in the interior of the second adjustment plate (901).

7. The medical disposable filter infusion set according to claim 1, characterized in that: A sealing plate (14) is fixedly connected to the outside of the infusion dropper (1), a sealing groove (15) is provided on the inside of the infusion dropper (1), and the sealing plate (14) and the sealing groove (15) are clearance-matched.

8. The medical disposable filter infusion set according to claim 7, characterized in that: A sealing ring (16) is fixedly connected to the outer side of the sealing plate (14), and the sealing ring (16) contacts the sealing groove (15).

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