An automatic closed three-way infusion device

Abstract

The utility model discloses a can automatic closed tee infusion apparatus, specifically related to medical supplies technical field, including tee infusion pipe, the inner surface right side fixed connection of tee infusion pipe has the connector, the inner surface rear side fixed connection of rear tee infusion pipe has infusion valve, the rear side of tee infusion pipe is provided with liquid injection subassembly, the left side of tee infusion pipe is provided with closing assembly, the left side provided with infusion subassembly of closing assembly. The utility model discloses a can automatic closed tee infusion apparatus, sets up infusion valve, when opening liquid injection subassembly pumps into high concentration, high osmosis etc. liquid medicine to tee infusion pipe, will liquid injection subassembly from tee infusion pipe, at this moment under the function of infusion valve, can block air to enter tee infusion pipe, prevent air to enter the blood vessel of patient, reduce the risk such as gas embolism, so can save heparin cap, can also reduce the risk of infection.

Description

Technical Field

[0001] This utility model relates to the field of medical supplies technology, and in particular to an automatically closed three-way infusion set. Background Technology

[0002] Infusion connectors are an important component used to connect various parts of an infusion system. They are mainly used to connect infusion tubing, drug injectors, infusion bottles, needles, etc., to ensure a smooth, safe, and sterile infusion process.

[0003] The use of heparin caps plays a crucial role in ensuring the patency, safety, and sterility of intravenous infusions, especially during long-term infusions or when drugs are delivered via catheters. Heparin caps can effectively prevent thrombus formation and maintain the normal functioning of the system.

[0004] Existing infusion connectors cannot meet the needs of patients without central venous catheters for temporary administration of high-concentration medications. They require the addition of disposable heparin caps to prevent air from entering, which can easily lead to waste of heparin caps and increase medical treatment costs. Utility Model Content

[0005] The main purpose of this invention is to provide an automatically closed three-way infusion set, which can effectively solve the problem that a disposable heparin cap needs to be attached to the infusion connector every time a therapeutic drug is injected into a patient using the infusion connector, which easily leads to the waste of the heparin cap.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] An automatically closing three-way infusion set includes a three-way infusion tube, a connector fixedly connected to the right side of the inner surface of the three-way infusion tube, an infusion valve fixedly connected to the rear side of the inner surface of the three-way infusion tube, an injection component provided on the rear side of the three-way infusion tube, a closing component provided on the left side of the three-way infusion tube, and an infusion component provided on the left side of the closing component.

[0008] Preferably, the injection assembly includes an injection pump, the output end of which is fixedly connected to an outlet pipe, the inner surface of which is threadedly connected to a micro-pump tube, the micro-pump tube being threadedly connected to the inner surface of the rear three-way infusion tube, and the input end of the injection pump being fixedly connected to an inlet pipe.

[0009] Preferably, the injection assembly further includes a rubber ring, which is fixedly connected to the rear side of the inner surface of the rear three-way infusion tube.

[0010] Preferably, the closing component includes a mounting housing, a through connector one fixedly connected to the middle of the right end of the mounting housing, a through connector two fixedly connected to the middle of the left end of the mounting housing, the left side of the three-way infusion tube being threadedly connected to the inner surface of the connector one, a sealing component being provided in the inner cavity of the mounting housing, and rectangular holes being symmetrically opened in the middle of the front and rear ends of the mounting housing.

[0011] Preferably, the sealing assembly includes an aluminum foil tube, which is fixedly connected to the middle right side of the inner surface of the mounting housing. A round tube is fixedly connected to the left end of the aluminum foil tube, and a silicone plug is fixedly connected to the left side of the inner surface of the round tube. An aluminum foil tube is fixedly connected to the left end of the round tube. A rectangular block is fixedly connected to the middle left side of the inner surface of the mounting housing. The aluminum foil tube is fixedly connected to the middle right end of the rectangular block. An insertion hole is provided in the middle right end of the rectangular block. The silicone plug is engaged with the inner surface of the insertion hole. Pulling blocks are symmetrically fixedly connected to the middle front and rear sides of the outer surface of the round tube.

[0012] Preferably, the inner surfaces of the two rectangular holes are provided with grooves on both the upper and lower sides, and the pull block on the same side is slidably connected to the inner surfaces of the two grooves.

[0013] Preferably, the infusion assembly includes an infusion tube, which is threaded to the inner surface of the connector, and a through infusion plug is fixedly connected to the left end of the infusion tube.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The infusion valve of this utility model, when the infusion assembly is opened to pump high-concentration, hypertonic, or other drug solutions into the three-way infusion tube, and the infusion assembly is removed from the three-way infusion tube, can block air from entering the three-way infusion tube under the action of the infusion valve, preventing air from entering the patient's blood vessels and reducing the risk of air embolism. In this way, it is not necessary to add an extra disposable heparin cap to block air from entering every time a drug is injected, which can save heparin caps and reduce the risk of infection.

[0016] 2. The silicone plug and insertion hole designed in this utility model allow the silicone plug to be inserted into the insertion hole, thereby sealing the insertion hole. This prevents high-concentration and hypertonic medications entering the three-way infusion tube from the rear port from leaking out from the left port of the three-way infusion tube, thus avoiding waste of the medication. The sliding groove makes the movement of the two pulling blocks more stable, thereby ensuring that the silicone plug can be better inserted into the rectangular block. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure and appearance of this utility model;

[0018] Figure 2This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the liquid injection assembly structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the closing component structure of this utility model;

[0021] Figure 5 This is an exploded view of the sealing component structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the infusion assembly structure of this utility model.

[0023] In the diagram: 1. Three-way infusion tubing; 2. Connector; 3. Infusion valve; 4. Infusion assembly; 41. Infusion pump; 42. Outlet tubing; 43. Micro-pump tubing; 44. Rubber ring; 45. Inlet tubing; 5. Closing assembly; 51. Mounting housing; 52. Connector 1; 53. Connector 2; 54. Sealing assembly; 541. Aluminum foil tube 1; 542. Round tube; 543. Silicone stopper; 544. Aluminum foil tube 2; 545. Rectangular block; 546. Insertion hole; 547. Pull block; 548. Slide groove; 55. Rectangular hole; 6. Infusion assembly; 61. Infusion tubing; 62. Infusion plug. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] Example 1

[0026] like Figure 1 and Figure 2 As shown, an automatically closing three-way infusion set includes a three-way infusion tube 1, a connector 2 fixedly connected to the right side of the inner surface of the three-way infusion tube 1, an infusion valve 3 fixedly connected to the rear side of the inner surface of the three-way infusion tube 1, an injection component 4 provided on the rear side of the three-way infusion tube 1, a closing component 5 provided on the left side of the three-way infusion tube 1, and an infusion component 6 provided on the left side of the closing component 5.

[0027] Connector 2 mentioned above is the CDC end for connecting to the patient. By connecting to the CDC end, the catheter can effectively deliver drugs, nutritional solutions, antibiotics, chemotherapy drugs, etc. into the patient's body. It plays an important role, especially in cases of long-term infusion or continuous drug administration. It is a mature technology in the existing technology. The structure and working principle of this solution will not be elaborated further here.

[0028] The infusion valve 3 mentioned above is a valve for a positive pressure infusion connector. It is a device used in medical infusion systems. Its main function is to maintain the pressure in the pipeline and prevent air from entering or flowing back during the infusion process. It can ensure that the liquid can be continuously delivered to the patient's body, while preventing air from entering the blood vessels and reducing the risk of air embolism. It is a mature technology in the existing technology. The structure and working principle of this solution will not be elaborated on here.

[0029] Connect the connector 2 to the patient and close the left port of the three-way infusion tube 1 using the closing component 5;

[0030] Connect the infusion assembly 4 to the three-way infusion tube 1. Continuously inject high-concentration, hypertonic drugs into the three-way infusion tube 1 by opening the infusion assembly 4. After pumping the high-concentration, hypertonic drug solution into the three-way infusion tube 1, remove the infusion assembly 4 from the three-way infusion tube 1. At this time, under the action of the infusion valve 3, air can be blocked from entering the three-way infusion tube 1, preventing air from entering the patient's blood vessels and reducing the risk of air embolism. This eliminates the need to add a disposable heparin cap to block air entry every time a drug is injected, saving heparin caps and reducing the risk of infection.

[0031] When medication is injected into the three-way infusion tube 1 through the infusion assembly 6, the closing assembly 5 will be opened, so that the closing assembly 5 will no longer block the left port of the three-way infusion tube 1. After the medication enters the three-way infusion tube 1, the medication will not leak out from the rear port of the three-way infusion tube 1 because of the presence of the infusion valve 3.

[0032] Example 2

[0033] Specifically, in order to avoid the need for an additional disposable heparin cap when administering medication into the three-way infusion tubing 1, and to prevent air from entering the three-way infusion tubing 1, please refer to... Figure 3 The injection assembly 4 includes an injection pump 41, an outlet pipe 42 fixedly connected to the output end of the injection pump 41, a micro pump pipe 43 threadedly connected to the inner surface of the outlet pipe 42, the micro pump pipe 43 threadedly connected to the inner surface of the rear three-way infusion pipe 1, and an inlet pipe 45 fixedly connected to the input end of the injection pump 41; the injection assembly 4 also includes a rubber ring 44, which is fixedly connected to the rear side of the inner surface of the rear three-way infusion pipe 1.

[0034] The aforementioned injection pump 41 is a micro-injection pump, which is a mature technology in the existing technology. This solution only borrows its function of being commonly used in the medical industry and being able to precisely adjust the flow rate and delivery volume of the liquid. Its structure and working principle will not be elaborated further here.

[0035] The above-mentioned outlet tube 42, micro pump tube 43 and inlet tube 45 are all flexible tubes with redundant lengths;

[0036] The aforementioned micro-infusion pump tubing 43 is a medical device used for infusion and drug delivery. It is usually used in conjunction with a micro-infusion pump or infusion pump. Its main purpose is to precisely control the flow rate of drugs or liquids to ensure that liquids or drugs are delivered into the patient's body at a predetermined rate. It is a mature technology in the prior art, and its structure and working principle will not be elaborated further in this solution.

[0037] In the specific implementation, the left port of the three-way infusion tube 1 is blocked by the closing component 5, the micro-pump tube 43 is connected to the outlet tube 42, and the micro-pump tube 43 is connected to the rear port of the three-way infusion tube 1.

[0038] The micro-pump tube 43, which is connected to the rear port of the three-way infusion tube 1, abuts against the rubber ring 44. Thus, when the infusion pump 41 is turned on to inject high-concentration, hypertonic, or other drug solutions into the three-way infusion tube 1, the rubber ring 44 acts as a seal, which can effectively prevent leakage of the drug solution and thus prevent waste of the drug solution.

[0039] After completing the above operations, place the inlet tube 45 into the container storing high-concentration, hypertonic, and other drug solutions, turn on the injection pump 41 to inject the high-concentration, hypertonic, and other drug solutions into the three-way infusion tube 1. Under the action of the infusion valve 3, high-concentration, hypertonic, and other drug solutions can be injected into the three-way infusion tube 1.

[0040] After the high-concentration, hypertonic drug solution is injected into the three-way infusion tube 1, the micro-pump tube 43 is used to separate the three-way infusion tube 1. Under the action of the infusion valve 3, air can be prevented from entering the three-way infusion tube 1.

[0041] The micro-pump tube 43 is threadedly connected to the outlet tube 42 and the three-way infusion tube 1, which allows the micro-pump tube 43 to be replaced in a timely manner after use, thereby ensuring the hygiene of the entire infusion process.

[0042] Example 3

[0043] Specifically, to prevent leakage of medication from the left port of the three-way infusion tube 1 when the medication is injected into the tube through the injection assembly 4, thus avoiding waste of the medication, please refer to... Figure 4 The closing component 5 includes a mounting housing 51. A through connector 1 52 is fixedly connected to the middle of the right end of the mounting housing 51, and a through connector 2 53 is fixedly connected to the middle of the left end of the mounting housing 51. The left side of the three-way infusion tube 1 is threadedly connected to the inner surface of the connector 1 52. A sealing component 54 is provided in the inner cavity of the mounting housing 51. Rectangular holes 55 are symmetrically opened in the middle of the front and rear ends of the mounting housing 51.

[0044] Further reading Figure 5The sealing assembly 54 includes an aluminum foil tube 541, which is fixedly connected to the middle right side of the inner surface of the mounting housing 51. A round tube 542 is fixedly connected to the left end of the aluminum foil tube 541. A silicone plug 543 is fixedly connected to the left side of the inner surface of the round tube 542. An aluminum foil tube 544 is fixedly connected to the left end of the round tube 542. A rectangular block 545 is fixedly connected to the middle left side of the inner surface of the mounting housing 51. The aluminum foil tube 544 is fixedly connected to the middle right end of the rectangular block 545. An insertion hole 546 is provided in the middle right end of the rectangular block 545. The silicone plug 543 is engaged with the inner surface of the insertion hole 546. Pulling blocks 547 are symmetrically fixedly connected to the middle front and rear of the outer surface of the round tube 542. Sliding grooves 548 are provided on the upper and lower sides of the inner surfaces of the two rectangular holes 55. The pulling blocks 547 on the same side are slidably connected to the inner surfaces of the two sliding grooves 548.

[0045] Further reading Figure 6 The infusion assembly 6 includes an infusion tube 61, which is threaded to the inner surface of the connector 53. An infusion plug 62 is fixedly connected to the left end of the infusion tube 61.

[0046] The aluminum foil tube 1 (541) and aluminum foil tube 2 (544) mentioned above both have a certain degree of flexibility and good extensibility, and can be freely stretched and retracted. They are mature technologies in the existing technology. The structure and working principle of these technologies will not be elaborated further in this solution.

[0047] The infusion tube 61 mentioned above is a flexible tube with redundant length;

[0048] The aforementioned infusion plug 62 is a mature technology in the prior art, and its structure and working principle will not be elaborated further in this solution;

[0049] In practice, under normal circumstances, the silicone plug 543 is not inserted into the socket 546. At this time, the silicone plug 543 will not block the socket 546, thereby preventing the liquid in the infusion tube 61 from entering the round tube 542 through the aluminum foil tube 2 544, and then further entering the three-way infusion tube 1 through the aluminum foil tube 1 541.

[0050] At this time, high-concentration, hypertonic drugs can be injected into the three-way infusion tube 1 through the infusion plug 62 and the infusion tube 61. Due to the presence of the infusion valve 3, the high-concentration, hypertonic drugs entering the three-way infusion tube 1 will not exit from the rear port of the three-way infusion tube 1, but will exit from the right port of the three-way infusion tube 1 and enter the patient's body.

[0051] When it is necessary to use the injection component 4 to inject high-concentration, hypertonic, or other medications into the three-way infusion tube 1 from the rear port, pull the two pulling blocks 547 towards the insertion hole 546 so that the silicone plug 543 is inserted into the insertion hole 546, thereby sealing the insertion hole 546. In this way, the high-concentration, hypertonic, or other medications entering the three-way infusion tube 1 from the rear port will not leak out from the left port of the three-way infusion tube 1, thus avoiding waste of the medication.

[0052] The two pull blocks 547 are slidably connected to the inner surfaces of the two slide grooves 548 on the same side, which makes the movement of the two pull blocks 547 more stable, thereby ensuring that the silicone plug 543 can be better inserted into the rectangular block 545.

[0053] It should be noted that the specific installation method, circuit connection method and control method of the injection pump 41 used in this utility model are all conventional designs, and will not be described in detail in this utility model.

[0054] The working principle of this utility model is as follows:

[0055] Pull the two pull blocks 547 toward the socket 546 so that the silicone plug 543 is inserted into the socket 546, thereby sealing the socket 546;

[0056] Connect the micro-pump tube 43 to the outlet tube 42, connect the micro-pump tube 43 to the rear port of the three-way infusion tube 1, place the inlet tube 45 into the container storing high-concentration, hypertonic, and other drug solutions, turn on the injection pump 41 to inject the high-concentration, hypertonic, and other drug solutions into the three-way infusion tube 1, and inject the high-concentration, hypertonic, and other drug solutions into the three-way infusion tube 1.

[0057] After completing the injection of high-concentration, hypertonic drugs into the three-way infusion tube 1, the micro-pump tube 43 is used to separate the three-way infusion tube 1.

[0058] This ensures that the silicone plug 543 is not inserted into the socket 546. High-concentration, hypertonic, and other medications can be injected into the three-way infusion tube 1 through the infusion plug 62 and the infusion tube 61. Due to the presence of the infusion valve 3, the high-concentration, hypertonic, and other medications entering the three-way infusion tube 1 will not exit from the rear port of the three-way infusion tube 1, but will exit from the right port of the three-way infusion tube 1 and enter the patient's body.

[0059] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automatically closing three-way infusion set, comprising a three-way infusion tube (1), characterized in that: A connector (2) is fixedly connected to the right side of the inner surface of the three-way infusion tube (1), and an infusion valve (3) is fixedly connected to the rear side of the inner surface of the three-way infusion tube (1). An injection assembly (4) is provided on the rear side of the three-way infusion tube (1), a closing assembly (5) is provided on the left side of the three-way infusion tube (1), and an infusion assembly (6) is provided on the left side of the closing assembly (5).

2. The automatically closing three-way infusion set according to claim 1, characterized in that: The injection assembly (4) includes an injection pump (41), the output end of which is fixedly connected to an outlet pipe (42), the inner surface of which is threadedly connected to a micro pump pipe (43), the micro pump pipe (43) being threadedly connected to the inner surface of the rear three-way infusion pipe (1), and the input end of the injection pump (41) being fixedly connected to an inlet pipe (45).

3. The automatically closing three-way infusion set according to claim 2, characterized in that: The injection assembly (4) also includes a rubber ring (44), which is fixedly connected to the rear side of the inner surface of the three-way infusion tube (1).

4. The automatically closing three-way infusion set according to claim 1, characterized in that: The closing component (5) includes a mounting housing (51), a through connector (52) is fixedly connected to the middle of the right end of the mounting housing (51), a through connector (53) is fixedly connected to the middle of the left end of the mounting housing (51), the left side of the three-way infusion tube (1) is threaded to the inner surface of the connector (52), a sealing component (54) is provided in the inner cavity of the mounting housing (51), and rectangular holes (55) are symmetrically opened in the middle of the front and rear ends of the mounting housing (51).

5. The automatically closing three-way infusion set according to claim 4, characterized in that: The sealing assembly (54) includes an aluminum foil tube (541), which is fixedly connected to the middle right side of the inner surface of the mounting housing (51). A round tube (542) is fixedly connected to the left end of the aluminum foil tube (541). A silicone plug (543) is fixedly connected to the left side of the inner surface of the round tube (542). An aluminum foil tube (544) is fixedly connected to the left end of the round tube (542). A rectangular block (545) is fixedly connected to the middle left side of the inner surface of the mounting housing (51). The aluminum foil tube (544) is fixedly connected to the middle right end of the rectangular block (545). An insertion hole (546) is opened in the middle right end of the rectangular block (545). The silicone plug (543) is snapped into the inner surface of the insertion hole (546). Pulling blocks (547) are symmetrically fixedly connected to the middle front and rear of the outer surface of the round tube (542).

6. The automatically closing three-way infusion set according to claim 5, characterized in that: The inner surfaces of the two rectangular holes (55) are provided with grooves (548) on both the upper and lower sides, and the pull block (547) on the same side is slidably connected to the inner surfaces of the two grooves (548).

7. The automatically closing three-way infusion set according to claim 4, characterized in that: The infusion assembly (6) includes an infusion tube (61), which is threaded to the inner surface of the connector (53), and a through infusion plug (62) is fixedly connected to the left end of the infusion tube (61).

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