Flow-adjustable disposable infusion apparatus

Abstract

The flow-adjustable disposable infusion apparatus comprises a puncture and an air tube, a communication assembly is installed at the bottom of the puncture, the communication assembly comprises a thick tube and a dropper, an infusion assembly is installed on one side of the thick tube and comprises a thin tube and a needle head, an air inlet prevention assembly is installed on the inner side of the dropper, and the thin tube is communicated with the thin tube. According to the flow-adjustable disposable infusion apparatus, the floating ball can be pushed downwards through the first spring, the bottom of the dropper is blocked, then air is effectively prevented from entering the bottom of the dropper, and therefore the flow-adjustable disposable infusion apparatus is convenient to use. According to the medical infusion device, the filter screen I and the filter screen II are arranged, so that infusion can be continued after dressing change, the situation that air enters the infusion device to replace the infusion device is avoided, the safety of personnel and animals is guaranteed, and when many impurities filtered on the filter screen I hinder flowing of liquid medicine, the filter screen II is used for continued filtering, and the medical infusion device is suitable for infusion operation of medical work.

Description

Technical Field

[0001] The utility model relates to the technical field of disposable infusion equipment, in particular to a disposable infusion set with adjustable flow rate. Background Art

[0002] A disposable infusion set is a commonly used medical device, which is convenient for drug infusion. The utility model patent with patent application number CN202021340844.8 discloses a disposable infusion set. By improving the existing disposable infusion set, a detachable fixing device is added to the infusion hose. At the same time, a portable blade is placed inside the packaging bag to facilitate the removal of the fixing device, thereby eliminating the phenomenon of repeated or multiple uses of the disposable infusion set and reducing the risk of cross-infection among patients. The device is simple to operate and easy to promote. According to the technical solution disclosed by the device, when the existing disposable infusion set is in use, on the one hand, after the drug is dripped, it is easy to cause air to enter the bottom of the pipe or even into the human body. The infusion set often needs to be replaced, which is not conducive to ensuring the safety of the personnel. On the other hand, in order to prevent the residue in the drug and the glass fragments of the ampoule from entering the human body, a filter is often required for filtration, which is easy to cause the filter to be blocked due to long-term infusion work, which is not conducive to ensuring normal infusion work.

[0003] Therefore, how to design a disposable infusion set with adjustable flow rate has become our current problem to be solved. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a disposable infusion set with adjustable flow rate to solve the problems raised in the above-mentioned background technology. The utility model has a reasonable design and is relatively convenient to use, and is suitable for use in infusion operations in medical work.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flow-adjustable disposable infusion set, comprising a puncture and an trachea, a connecting component is installed at the bottom of the puncture, the connecting component comprises a thick tube and a dropper, an infusion component is installed on one side of the thick tube, the infusion component comprises a thin tube and a needle, an anti-air intake component is installed on the inner side of the dropper, the anti-air intake component comprises a float and a spring 1, a connecting component is installed on the thick tube, the connecting component comprises a ferrule and a support sleeve, a filter component is installed on the inner side of the ferrule, the filter component comprises filter screen 1 and filter screen 2, an anti-backflow mechanism is installed on the inner side of the support sleeve, and the anti-backflow mechanism comprises a Tesla valve.

[0006] Furthermore, the air tube is welded to the other side of the puncture, and the puncture is connected to the top end of the dropper through a thick tube.

[0007] Furthermore, the support sleeve is welded to the top of the ferrule, the support sleeve is connected to the needle through a thin tube, a sliding sleeve is installed at the bottom of the ferrule, and the bottom end of the sliding sleeve is connected to the bottom end of the dropper through a thick tube.

[0008] Furthermore, a regulator is sleeved on the outer side of the thick tube, and the regulator is located at the bottom of the dropper.

[0009] Furthermore, the bottom of the float is stuck on the inner wall of the bottom of the dropper, and the top of the float is connected to the inner wall of the dropper through a spring.

[0010] Furthermore, the second filter is welded to the inner wall of the ferrule, the first filter is clamped to the inner wall of the ferrule through a sealing ring, and the first filter is connected to the second filter through a second spring.

[0011] Furthermore, the top end of the sliding sleeve passes through the bottom end of the ferrule and extends to the inner side of the ferrule, and the top end of the sliding sleeve is integrally formed with a guide rod.

[0012] Furthermore, a retaining ring is bonded to the inner side of the filter screen 1, a diaphragm is integrally formed on the inner side of the retaining ring, the guide rod is located at the bottom of the diaphragm, and the Tesla valve is integrally formed on the inner side of the support sleeve.

[0013] Beneficial effects: 1. When the flow-adjustable disposable infusion set is in use, the puncture is inserted into the inner side of the medicine bottle, and then the needle is inserted into the inner side of the blood vessel of a person or an animal. The medicine drips onto the inner side of the dropper through the thick tube, causing the medicine to lift the float upward, and the float compresses the spring and moves upward together, thereby causing the medicine to be transported to the needle through the thick tube. When the medicine in the medicine bottle is consumed, the liquid level of the medicine in the dropper drops, causing the spring to push the float downward, sealing the bottom of the dropper, and the medicine no longer flows downward, thereby effectively preventing air from entering the bottom of the dropper, so that the infusion work can continue after the dressing is changed, avoiding the need to replace the infusion set due to the entry of air, and ensuring the safety of people and animals.

[0014] 2. When the flow-adjustable disposable infusion set is in use, after the medicine passes through the sliding sleeve and enters the inner side of the ferrule, filter screen 1 is used to filter out drug residues, glass fragments of ampoule bottles and other impurities in the medicine. When there are too many impurities filtered on filter screen 1 and the flow of the medicine is hindered, the sliding sleeve is pushed, the guide rod penetrates the diaphragm, and spring 2 pushes filter screen 1 downward to limit the impurities on the outside of the retaining ring. At the same time, filter screen 2 is used to continue filtering, and the Tesla valve in the support sleeve is used to avoid blood reflux to ensure the safety of infusion for personnel or animals.

[0015] 3. The flow-adjustable disposable infusion set is reasonably designed, efficient and convenient to use, and is suitable for infusion operations in medical work. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a disposable infusion set with adjustable flow rate according to the utility model;

[0017] Figure 2 It is a cross-sectional view of a dropper of a disposable infusion set with adjustable flow rate according to the utility model;

[0018] Figure 3 It is a cross-sectional view of a ferrule of a disposable infusion set with adjustable flow rate according to the utility model;

[0019] In the figure: 1. puncture; 2. trachea; 3. thick tube; 4. dropper; 5. regulator; 6. ferrule; 7. support sleeve; 8. thin tube; 9. needle; 10. float; 11. spring one; 12. sliding sleeve; 13. guide rod; 14. filter one; 15. retaining ring; 16. diaphragm; 17. spring two; 18. filter two; 19. Tesla valve. 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] See also Figures 1 to 3The utility model provides a technical solution: a disposable infusion set with adjustable flow, comprising a puncture 1 and an trachea 2, a connecting component is installed at the bottom of the puncture 1, the connecting component comprises a thick tube 3 and a dropper 4, an infusion component is installed on one side of the thick tube 3, the infusion component comprises a thin tube 8 and a needle 9, an anti-air intake component is installed on the inner side of the dropper 4, the anti-air intake component comprises a float 10 and a spring 11, a connecting component is installed on the thick tube 3, the connecting component comprises a ferrule 6 and a support sleeve 7, a filter component is installed on the inner side of the ferrule 6, the filter component comprises a filter screen 14 and a filter screen 2 18, an anti-backflow mechanism is installed on the inner side of the support sleeve 7, the anti-backflow mechanism comprises a Tesla valve 19, the trachea 2 is welded to the other side of the puncture 1, the puncture 1 is connected to the top of the dropper 4 through the thick tube 3, and the float The bottom of the ball 10 is stuck on the inner wall of the bottom of the dropper 4, and the top of the float 10 is connected to the inner wall of the dropper 4 through a spring 11. When in use, the puncture 1 is inserted into the inner side of the medicine bottle, and then the needle 9 is inserted into the inner side of the blood vessel of a person or an animal. The medicine drips into the inner side of the dropper 4 through the thick tube 3, so that the medicine floats the float 10 upward, and the float 10 compresses the spring 11 and moves upward, thereby allowing the medicine to be transported to the needle 9 through the thick tube 3. When the medicine in the medicine bottle is consumed, the liquid level of the medicine in the dropper 4 drops, and then the spring 11 pushes the float 10 downward, blocking the bottom of the dropper 4, and the medicine no longer flows downward, thereby effectively preventing air from entering the bottom of the dropper 4, so that the infusion work can continue after the medicine is changed, avoiding the need to replace the infusion set due to the entry of air, and ensuring the safety of people and animals.

[0022] In this embodiment, the support sleeve 7 is welded to the top of the ferrule 6, and the support sleeve 7 is connected with the needle 9 through the thin tube 8. A sliding sleeve 12 is installed at the bottom of the ferrule 6, and the bottom end of the sliding sleeve 12 is connected with the bottom end of the dropper 4 through the thick tube 3. The outer side sleeve of the thick tube 3 is provided with a regulator 5, and the regulator 5 is located at the bottom of the dropper 4. The filter screen 18 is welded to the inner wall of the ferrule 6, and the filter screen 14 is clamped on the inner wall of the ferrule 6 through a sealing ring. The filter screen 14 is connected to the filter screen 18 through a spring 2 17. The top end of the sliding sleeve 12 passes through the bottom of the ferrule 6 and extends to the inner side of the ferrule 6. The top end of the sliding sleeve 12 is integrally formed with a guide rod 13, and the inner side of the filter screen 14 is bonded with a retaining ring 15. A diaphragm 16 is integrally formed on the inner side of the retaining ring 15, the guide rod 13 is located at the bottom of the diaphragm 16, and the Tesla valve 19 is integrally formed on the inner side of the support sleeve 7. When in use, after the medicine enters the inner side of the ferrule 6 through the sliding sleeve 12, the filter screen 14 is used to filter the drug residues, glass fragments of the ampoule bottle and other impurities in the medicine. When the impurities filtered on the filter screen 14 are too many and hinder the flow of the medicine, the sliding sleeve 12 is pushed, the guide rod 13 penetrates the diaphragm 16, and the spring 2 17 pushes the filter screen 14 downward to limit the impurities on the outside of the retaining ring 15. At the same time, the filter screen 2 18 is used to continue the filtering work. At the same time, the Tesla valve 19 in the support sleeve 7 is used to avoid blood reflux to ensure the safety of infusion for personnel or animals.

[0023] When the flow-adjustable disposable infusion set is used, the puncture 1 is inserted into the inner side of the medicine bottle, and then the needle 9 is inserted into the inner side of the blood vessel of a person or an animal, and the medicine drips into the inner side of the dropper 4 through the thick tube 3, so that the medicine floats the float 10 upward, and the float 10 compresses the spring 11 and moves upward, so that the medicine is transported to the needle 9 through the thick tube 3. When the medicine in the medicine bottle is consumed, the liquid level of the medicine in the dropper 4 drops, and the spring 11 pushes the float 10 downward, blocking the bottom of the dropper 4, so that the medicine no longer flows downward, thereby effectively preventing air from entering the bottom of the dropper 4, so that the medicine can continue to be changed after the medicine is changed. During the infusion work, the infusion set should be replaced to avoid the entry of air, and the safety of personnel and animals should be ensured. After the medicine enters the inner side of the card sleeve 6 through the sliding sleeve 12, the filter screen 14 is used to filter the drug residues, glass fragments of the ampoule bottle and other impurities in the medicine. When there are too many impurities filtered on the filter screen 14 and the flow of the medicine is hindered, the sliding sleeve 12 is pushed, the guide rod 13 penetrates the diaphragm 16, and the spring 17 pushes the filter screen 14 downward to limit the impurities on the outside of the retaining ring 15. At the same time, the filter screen 18 is used to continue the filtering work. At the same time, the Tesla valve 19 in the support sleeve 7 is used to avoid the situation of blood reflux to ensure the safety of infusion for personnel or animals.

[0024] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description 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 may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A disposable infusion set with adjustable flow rate, comprising a puncture (1) and a trachea (2), a connecting component is installed at the bottom of the puncture (1), the connecting component comprises a thick tube (3) and a dropper (4), an infusion component is installed on one side of the thick tube (3), the infusion component comprises a thin tube (8) and a needle (9), characterized in that: An anti-air intake component is installed on the inner side of the dropper (4), and the anti-air intake component includes a float (10) and a spring 1 (11). A connecting component is installed on the thick tube (3), and the connecting component includes a ferrule (6) and a support sleeve (7). A filter component is installed on the inner side of the ferrule (6), and the filter component includes a filter screen 1 (14) and a filter screen 2 (18). An anti-backflow mechanism is installed on the inner side of the support sleeve (7), and the anti-backflow mechanism includes a Tesla valve (19).

2. A disposable infusion set with adjustable flow rate according to claim 1, characterized in that: The air tube (2) is welded to the other side of the puncture (1), and the puncture (1) is connected to the top end of the dropper (4) through a thick tube (3).

3. A disposable infusion set with adjustable flow rate according to claim 2, characterized in that: The support sleeve (7) is welded to the top of the ferrule (6); the support sleeve (7) is connected to the needle (9) via a thin tube (8); a sliding sleeve (12) is installed at the bottom of the ferrule (6); the bottom end of the sliding sleeve (12) is connected to the bottom end of the dropper (4) via a thick tube (3).

4. The disposable infusion set with adjustable flow rate according to claim 3, characterized in that: The outer side of the thick tube (3) is sleeved with a regulator (5), and the regulator (5) is located at the bottom of the dropper (4).

5. The disposable infusion set with adjustable flow rate according to claim 4, characterized in that: The bottom of the float (10) is stuck on the inner wall of the bottom of the dropper (4), and the top of the float (10) is connected to the inner wall of the dropper (4) via a spring 1 (11).

6. The disposable infusion set with adjustable flow rate according to claim 1, characterized in that: The second filter screen (18) is welded to the inner wall of the ferrule (6), the first filter screen (14) is clamped to the inner wall of the ferrule (6) via a sealing ring, and the first filter screen (14) is connected to the second filter screen (18) via a second spring (17).

7. The disposable infusion set with adjustable flow rate according to claim 3, characterized in that: The top end of the sliding sleeve (12) passes through the bottom end of the clamping sleeve (6) and extends to the inner side of the clamping sleeve (6), and a guide rod (13) is integrally formed at the top end of the sliding sleeve (12).

8. The disposable infusion set with adjustable flow rate according to claim 7, characterized in that: A retaining ring (15) is bonded to the inner side of the filter screen 1 (14), a diaphragm (16) is integrally formed on the inner side of the retaining ring (15), the guide rod (13) is located at the bottom of the diaphragm (16), and the Tesla valve (19) is integrally formed on the inner side of the support sleeve (7).

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