Disposable one-way valve multi-way infusion connector

Abstract

The utility model discloses a disposable one-way valve multi-way infusion connector which comprises a valve body, integrally-formed protruding blocks are arranged on the outer wall of the top of the valve body, a plurality of fixing bases are fixedly arranged between the adjacent protruding blocks, nipples are fixedly arranged at the top ends of the fixing bases, and positive pressure connectors are connected to the nipples in an inserted mode. A connector is arranged on the outer wall of one side of the bottom of the valve body, a filter is fixedly connected to the bottom end of the connector, a plurality of connecting pieces are fixedly installed on the inner wall of the positive pressure connector, an inner frame is fixedly installed in the positive pressure connector through the connecting pieces, a sliding groove is formed in the outer wall of one side of the inner frame, and a guide rod is slidably inserted into the sliding groove. According to the multi-way infusion connector, the effect of intravenous injection of multiple bottles of medicine can be achieved, meanwhile, the positive-pressure connector is adopted, the situation of backflow during needle withdrawal is avoided, a heparin cap does not need to be used for connection after connection and separation between a pipeline and the connector, and the multi-way infusion connector is convenient to use and operate.

Description

Technical Field

[0001] The utility model relates to the technical field of infusion, in particular to a disposable one-way valve multi-way infusion connector. Background Art

[0002] Intravenous infusion is the most commonly used nursing activity in clinical practice. During intravenous infusion, the infusion rate of the infusion tube is adjusted through the infusion regulating valve, which is connected to the infusion tube. One end of the infusion tube is inserted into the medicine bottle (or medicine bag) through the connector, and the other end of the infusion tube is connected to the needle. This achieves the process of delivering liquid medicine to the patient's blood vessels.

[0003] Most of the existing infusion tubes are of an integral structure, which is not suitable for the infusion of multiple bottles (bags) of intravenous infusion drugs. At the same time, there are multi-way connector structures used in intravenous infusion in the market, but the multi-way connector structure of intravenous infusion still has problems. It does not have the function of filtering liquid drugs. For example, the turbidity of drugs cannot be intervened in time. At the same time, after the connection between the pipeline and the connector is separated, the heparin cap needs to be connected, which makes it more troublesome to use. Therefore, it is urgent to design a disposable one-way valve multi-way infusion connector to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a disposable one-way valve multi-way infusion connector to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A disposable one-way valve multi-way infusion connector, comprising a valve body, an integrally formed protrusion is arranged on the outer wall of the top of the valve body, and a plurality of fixing seats are fixedly arranged between adjacent protrusions, a nipple is fixedly arranged on the top of the fixing seat, a positive pressure connector is plugged into the nipple, a connector is arranged on the outer wall on one side of the bottom of the valve body, and a filter is fixedly connected to the bottom end of the connector, a plurality of connecting pieces are fixedly installed on the inner wall of the positive pressure connector, an inner frame is fixedly installed inside the positive pressure connector through the connecting piece, a slide groove is opened on the outer wall of one side of the inner frame, and a guide rod is slidably plugged into the inside of the slide groove, a compression spring fixedly installed on the inner frame is sleeved on the outside of the guide rod, and a piston disk in contact with the inner frame is welded to one end of the guide rod, and a liquid flow channel is formed between the outside of the positive pressure connector and the inner frame.

[0007] Preferably, an annular reinforcement ring is provided on the outer side wall of the valve body, and the thickness of the reinforcement ring protruding from the valve body is 1-5 mm.

[0008] Preferably, an end of the positive pressure connector away from the nipple is connected to a liquid inlet pipe, and a bottom end of the filter is connected to a liquid discharge pipe.

[0009] Preferably, a through hole structure is provided on an outer wall of one side of the connecting piece, and the number of connecting pieces provided in the same side viewing plane is 3-6.

[0010] Preferably, a snap fastener is provided in the middle of the outer side of the filter, and the snap fastener is composed of a sealing ring and a threaded structure.

[0011] Preferably, a plurality of filter components are fixedly installed inside the filter, and retaining frames are provided between the filter components.

[0012] In the above technical solution, the utility model provides a disposable one-way valve multi-way infusion connector, which has the following beneficial effects:

[0013] (1) The multi-channel infusion connector used can meet the effect of intravenous injection of multiple bottles of drugs. At the same time, the positive pressure connector used can avoid backflow when the needle is removed. After the connection between the pipeline and the connector is separated, there is no need to use a heparin cap to connect them. It is easy to use and easy to operate. (2) The filter used can filter and remove impurities from liquid drugs to prevent turbidity or impurities in the liquid drugs from entering the patient's blood vessels, which plays a good role in early prevention and better ensures the normal infusion process of patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0015] Figure 1 The present invention provides a three-dimensional structural schematic diagram of a disposable one-way valve multi-way infusion connector embodiment.

[0016] Figure 2 The present invention provides a front structural schematic diagram of a disposable one-way valve multi-way infusion connector embodiment.

[0017] Figure 3 A schematic diagram of a filter structure provided for an embodiment of a disposable one-way valve multi-way infusion connector of the utility model.

[0018] Figure 4 The present invention is a schematic diagram of the structure of a filter assembly provided in an embodiment of a disposable one-way valve multi-way infusion connector of the present invention.

[0019] 1 valve body, 2 reinforcement ring, 3 convex block, 4 fixing seat, 5 nipple, 6 positive pressure joint, 7 liquid inlet pipe, 8 connector, 9 filter, 10 liquid discharge pipe, 11 connector, 12 inner frame, 13 slide groove, 14 guide rod, 15 compression spring, 16 piston disc, 17 liquid flow channel, 18 snap fastener, 19 filter assembly. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0021] like Figure 1-4 As shown, a disposable one-way valve multi-way infusion connector provided by an embodiment of the utility model comprises a valve body 1, an outer wall at the top of the valve body 1 is provided with an integrally formed protrusion 3, and a plurality of fixing seats 4 are fixedly provided between adjacent protrusions 3, a nipple 5 is fixedly provided at the top of the fixing seat 4, a positive pressure connector 6 is plugged into the nipple 5, a connector 8 is provided on the outer wall on one side of the bottom of the valve body 1, and a filter 9 is fixedly connected to the bottom end of the connector 8, a plurality of connecting members 11 are fixedly installed on the inner wall of the positive pressure connector 6, an inner frame 12 is fixedly installed inside the positive pressure connector 6 through the connecting member 11, a slide groove 13 is opened on the outer wall on one side of the inner frame 12, and a guide rod 14 is slidably plugged into the inner part of the slide groove 13, a compression spring 15 fixedly installed on the inner frame 12 is sleeved on the outside of the guide rod 14, and a piston disk 16 in contact with the inner frame 12 is welded to one end of the guide rod 14, and a liquid flow channel 17 is formed between the outside of the positive pressure connector 6 and the inner frame 12.

[0022] Specifically, in this embodiment, it includes a valve body 1, the interior of the valve body 1 is a cavity structure, which is used to realize multi-channel liquid delivery, an integrally formed protrusion 3 is arranged on the outer wall of the top of the valve body 1, the protrusion 3 improves the strength of the valve body 1, and ensures that the valve body 1 is more stable, and a plurality of fixing seats 4 are fixedly arranged between adjacent protrusions 3, and a one-way valve structure is arranged inside the fixing seat 4 to prevent the liquid inside the valve body from flowing back to the delivery tube, and a nipple 5 is fixedly arranged on the top of the fixing seat 4. The nipple 5 used is a conical structure, which is convenient for the stable connection between the valve body and the delivery tube, and a positive pressure connector 6 is inserted on the nipple 5. The positive pressure connector 6 can prevent the backflow of blood when the needle is removed, and there is no need to use a heparin cap for blocking when the delivery tube is removed, and a connector 8 is arranged on the outer wall of one side of the bottom of the valve body 1, and a filter 9 is fixedly connected to the bottom end of the connector 8, and the filtering treatment of the liquid drug is realized by the filter 9, and a plurality of connectors 11 are fixedly installed on the inner wall of the positive pressure connector 6 The inner frame 12 is fixedly installed inside the positive pressure joint 6 through a connecting piece 11, and a slide groove 13 is opened on the outer wall of one side of the inner frame 12, and a guide rod 14 is slidably inserted inside the slide groove 13, and a compression spring 15 fixedly installed on the inner frame 12 is sleeved on the outside of the guide rod 14, and a piston disk 16 in contact with the inner frame 12 is welded at one end of the guide rod 14, and a liquid flow channel 17 is formed between the outside of the positive pressure joint 6 and the inner frame 12. During normal infusion, the liquid enters the inside of the liquid flow channel 17 through the delivery tube. As the liquid medicine inside the liquid flow channel 17 increases, its pressure increases, and the liquid medicine will push the piston disk 16 to drive the guide rod 14 to move inside the slide groove 13. At the same time, the compression spring 15 is compressed to achieve normal liquid medicine delivery or passage. When the needle is removed from the patient, the internal pressure of the liquid flow channel 17 is instantly reduced at this moment. Under the rebound action of the compression spring 15, the medicine will be driven to be further pushed, thereby effectively avoiding the situation of blood reflux when the needle is removed.

[0023] The utility model provides a disposable one-way valve multi-way infusion connector, which can meet the effect of intravenous injection of multiple bottles of medicine. At the same time, the positive pressure connector 6 is adopted to avoid backflow when the needle is removed. After the connection between the pipeline and the connector is separated, there is no need to connect it with a heparin cap, which is convenient to use and easy to operate.

[0024] As an embodiment provided by the utility model, an annular reinforcement ring 2 is provided on the outer wall of the valve body 1, and the thickness of the reinforcement ring 2 protruding from the valve body 1 is 1-5mm. The reinforcement ring 2 has a good reinforcement effect on the valve body 1, and the thickness of the reinforcement ring 2 is preferably 2mm.

[0025] As another embodiment provided by the utility model, the end of the positive pressure connector 6 away from the nipple 5 is connected to a liquid inlet pipe 7, and the bottled or bagged liquid medicine is transported to the valve body 1 through the liquid inlet pipe 7. The bottom end of the filter 9 is connected to a discharge pipe 10. After the liquid medicine is filtered by the filter 9, it enters people's blood vessels from the discharge pipe 10.

[0026] In another embodiment provided by the utility model, a through hole structure is provided on the outer wall of one side of the connecting piece 11, and the number of the connecting pieces 11 arranged in the same side viewing plane is 3-6. The use of the connecting piece with the through hole structure can not only ensure the smooth flow of the liquid flow channel 17, but also can well realize the fixation of the inner frame 12 inside the positive pressure joint 6.

[0027] As another embodiment provided by the utility model, a snap fastener 18 is provided in the middle part of the outer side of the filter 9, and the snap fastener 18 is composed of a sealing ring and a threaded structure. A plurality of filter components 19 are fixedly installed inside the filter 9, and a retaining frame is provided between the filter components 19. The filter components 19 are used to achieve a filtering effect on liquid medicines. The filter components include three groups arranged in parallel, and the pore size of each group of filter components 19 decreases successively. The filter components 19 are composed of a stainless steel filter mesh, filter paper and a fiber filter membrane successively. The stainless steel filter mesh and filter paper are used to filter turbidity, precipitation and impurities in the liquid medicine, and the fiber filter membrane is used to achieve a filtering effect on bacteria.

[0028] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A disposable one-way valve multi-way infusion connector, comprising a valve body (1), characterized in that: An integrally formed protrusion (3) is provided on the outer wall of the top of the valve body (1), and a plurality of fixing seats (4) are fixedly provided between adjacent protrusions (3); a nipple (5) is fixedly provided on the top of the fixing seat (4), and a positive pressure connector (6) is plugged into the nipple (5); a connector (8) is provided on the outer wall of one side of the bottom of the valve body (1), and a filter (9) is fixedly connected to the bottom end of the connector (8); a plurality of connecting pieces (11) are fixedly installed on the inner wall of the positive pressure connector (6), and the positive pressure connector (6) is connected to the positive pressure connector (6). An inner frame (12) is fixedly mounted inside the head (6) via a connecting piece (11); a slide groove (13) is formed on an outer wall of one side of the inner frame (12); a guide rod (14) is slidably inserted inside the slide groove (13); a compression spring (15) fixedly mounted on the inner frame (12) is sleeved on the outside of the guide rod (14); a piston disc (16) in contact with the inner frame (12) is welded to one end of the guide rod (14); and a liquid flow channel (17) is formed between the outside of the positive pressure joint (6) and the inner frame (12).

2. A disposable one-way valve multi-way infusion connector according to claim 1, characterized in that: An annular reinforcement ring (2) is provided on the outer side wall of the valve body (1), and the thickness of the reinforcement ring (2) protruding from the valve body (1) is 1-5 mm.

3. A disposable one-way valve multi-way infusion connector according to claim 1, characterized in that: The end of the positive pressure joint (6) away from the nipple (5) is connected to a liquid inlet pipe (7), and the bottom end of the filter (9) is connected to a liquid discharge pipe (10).

4. A disposable one-way valve multi-way infusion connector according to claim 1, characterized in that: A through hole structure is provided on an outer wall of one side of the connecting piece (11), and the number of connecting pieces (11) provided in the same side-view plane is 3-6.

5. The disposable one-way valve multi-way infusion connector according to claim 1, characterized in that: A snap-on buckle (18) is provided at the middle portion of the outer side of the filter (9), and the snap-on buckle (18) is composed of a sealing ring and a threaded structure.

6. A disposable one-way valve multi-way infusion connector according to claim 1, characterized in that: A plurality of filter components (19) are fixedly installed inside the filter (9), and retaining frames are arranged between the filter components (19).

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