Replaceable quick-plug infusion connector

Abstract

The utility model provides a replaceable quick-plug infusion connector which comprises an infusion tube, a fixing head, a connector and a connecting tube, the fixing head used for being connected with the connector in a sealed mode is arranged at the lower end of the infusion tube, and the connector used for being connected with the fixing head in a sealed mode is arranged at the lower end of the fixing head. A connecting pipe used for guiding liquid is arranged at the lower end of the connector, the interior of the fixing head is of a hollow structure, the connector and the fixing head are embedded in a sealed mode, and the interior of the fixing head is of a hollow structure. Compared with the prior art, the infusion connector has the advantages that the infusion connector is rapidly connected and communicated through the fixing head and the connector, the sealing connection effect between the fixing head and the connector is enhanced through the two sets of embedded heads, and the inner sealing pieces can effectively prevent air from entering the fixing head and the connector. The embedded groove can be hermetically embedded with the embedded head, so that external air is prevented from entering, and the internal medicament is prevented from seeping out.

Description

Technical Field

[0001] The utility model belongs to the technical field of infusion connectors and relates to a replaceable quick-plug infusion connector. Background Art

[0002] An infusion connector is a medical device used to connect an infusion set and a catheter to deliver fluids into the patient's body. The design and use of infusion connectors are critical to ensuring the safety and effectiveness of the infusion process. There are many types of infusion connectors available on the market, such as Clave infusion connectors, Smeral infusion connectors, Abel infusion connectors, Baxter infusion connectors, French Vigan infusion connectors, and BD heparin caps. Each infusion connector has its own unique characteristics and applicable scenarios, but the inability to quickly disassemble the infusion connector may cause a series of problems in the medical environment. These problems not only affect the efficiency of medical work, but may also pose a potential threat to the safety and health of patients.

[0003] First, when the infusion connector cannot be quickly disassembled, it may cause delays in the infusion process. In emergency situations, such as rescuing a patient in shock or requiring a large amount of fluid, the delay may cause the patient's condition to worsen or even endanger his life. In addition, long waits may also increase the work pressure of medical staff and affect their judgment and accuracy of operation.

[0004] Secondly, infusion connectors that cannot be quickly disassembled may increase the risk of infection. During the process of connecting and disconnecting the infusion connector, if the operation is improper or the time is too long, bacteria or other microorganisms may invade the patient's blood circulation system, causing infection. Infection not only increases the patient's pain and treatment costs, but may also lead to serious complications such as sepsis.

[0005] In addition, the inability to quickly disassemble the infusion connector may also affect the accuracy and safety of the infusion. If the connector is not tightly connected or leaks, it may cause the loss of drugs or liquids, thus affecting the treatment effect. More seriously, if the connector is loose or falls off, it may cause blood or drug extravasation, causing local tissue damage or allergic reactions.

[0006] In summary, the inability to quickly disassemble the infusion connector may cause a series of problems, including delays in the infusion process, increased risk of infection, and reduced accuracy and safety of infusion. Therefore, a replaceable quick-connect infusion connector is urgently needed to solve the above problems. Utility Model Content

[0007] In view of the deficiencies in the prior art, the utility model aims to provide a replaceable quick-connect infusion connector to solve the problems raised in the above-mentioned background technology.

[0008] The utility model is realized by the following technical scheme: a replaceable quick-connect infusion connector, comprising: an infusion tube, a fixed head, a connecting head and a connecting tube, wherein the lower end of the infusion tube is provided with a fixed head for sealing connection with the connecting head, and the lower end of the fixed head is provided with a connecting head for sealing connection with the fixed head;

[0009] The lower end of the connector is provided with a connecting pipe for guiding liquid, the interior of the fixed head is a hollow structure, and the connector is sealed and embedded with the fixed head;

[0010] The interior of the fixed head is a hollow structure, the interior of the fixed head is interconnected with the interior of the connecting head, and the interior of the connecting head is interconnected with the interior of the connecting tube, and the infusion connectors can be quickly connected and communicated with each other by using the fixed head and the connecting head.

[0011] As a preferred embodiment, the fixing head includes a locking nut and a guide cavity, the lower end of the locking nut is provided with a connecting thread for threaded tight connection, and the inner side of the connecting thread is provided with a conduit for transmitting liquid.

[0012] As a preferred embodiment, an inner sealing sheet for sealing the inner side of the fixing head and the connecting head is provided on the outer side of the upper end of the conduit, and two groups of embedded heads for sealing connection are provided on the outer side of the lower end of the conduit.

[0013] As a preferred embodiment, the inner side of the upper end of the locking bolt nut is rotatably connected to the inner side of the infusion tube through a thread, the locking bolt nut and the catheter are an integrated structure, the outer side of the catheter is connected to the inner sealing sheet and two groups of embedded heads with limited sealing, the inner sealing sheet and the two groups of embedded heads are made of a rubber material, and the sealing connection effect between the fixed head and the connecting head can be enhanced by using two groups of embedded heads, and the inner sealing sheet can effectively prevent air from entering the fixed head and the connecting head.

[0014] As a preferred embodiment, the connector includes an outer sealing plate and a limiting pipe groove, the inner side of the outer sealing plate is provided with an inner screw groove for connecting with the connecting thread, the outer side of the outer sealing plate is provided with an infusion tube for connection, and a group of sealing ring gaskets for sealing are provided on the right side inside the inner screw groove.

[0015] As a preferred embodiment, a group of flow cavities for guiding liquid are provided on the inner side of the sealing ring gasket, and an embedded groove for sealing with the insert head is provided inside the middle position of the flow cavity. By using the embedded groove, it can be sealed with the insert head to prevent external air from entering and internal medicine from leaking out.

[0016] As a preferred embodiment, when the insert is compressed to the maximum extent, the inner diameter length of its cross section is the same as the inner diameter length of the cross section of the flow cavity, the insert is sealed and embedded in the inner groove, and the cross section of the insert is a trapezoidal structure.

[0017] After adopting the above technical scheme, the beneficial effects of the utility model are: by using a fixed head and a connecting head to quickly connect and communicate with the infusion connector, by using two sets of embedded heads to strengthen the sealing connection effect between the fixed head and the connecting head, the internal sealing sheet can effectively prevent air from entering the fixed head and the connecting head, and by using the embedded groove, it can be sealed with the embedded head to prevent external air from entering and preventing internal medicine from leaking out. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a schematic diagram of the top view of the structure when the fixed head and the connecting head of a replaceable quick-connect infusion connector of the utility model are connected;

[0020] Figure 2 This is a schematic diagram of the top view of the fixed head in a replaceable quick-connect infusion connector of the utility model;

[0021] Figure 3 This is a schematic diagram of the top view of the upper end of the connector of a replaceable quick-connect infusion connector of the utility model;

[0022] In the figure: 100 - infusion tube, 110 - fixed head, 120 - connecting head, 130 - connecting tube;

[0023] 11a-locking nut, 11b-connecting thread, 11c-inner sealing sheet, 11d-conduit, 11e-insertion head, 11f-guiding cavity;

[0024] 12a-external sealing sheet, 12b-internal screw groove, 12c-sealing ring gasket, 12d-flow cavity, 12e-embedded groove, 12f-limiting pipe groove. DETAILED DESCRIPTION

[0025] 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 of 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.

[0026] See also Figure 1-Figure 3A replaceable quick-connect infusion connector includes: an infusion tube 100, a fixed head 110, a connecting head 120 and a connecting tube 130, wherein the lower end of the infusion tube 100 is provided with a fixed head 110 for sealingly connecting with the connecting head 120, and the lower end of the fixed head 110 is provided with a connecting head 120 for sealingly connecting with the fixed head 110;

[0027] A connecting pipe 130 for guiding liquid is provided at the lower end of the connecting head 120. The interior of the fixed head 110 is a hollow structure. The connecting head 120 and the fixed head 110 are sealed and embedded.

[0028] The interior of the fixing head 110 is a hollow structure, the interior of the fixing head 110 is interconnected with the interior of the connecting head 120, and the interior of the connecting head 120 is interconnected with the interior of the connecting tube 130. The infusion connectors can be quickly connected and communicated with each other by using the fixing head 110 and the connecting head 120.

[0029] The fixing head 110 includes a locking nut 11a and a guide cavity 11f. A connecting thread 11b for threaded tight connection is disposed at the lower end of the locking nut 11a. A conduit 11d for transmitting liquid is disposed inside the connecting thread 11b.

[0030] An inner sealing sheet 11c for sealing the inner side of the fixing head 110 and the connecting head 120 is arranged on the outer side of the upper end of the conduit 11d, and two groups of embedded heads 11e for sealing connection are arranged on the outer side of the lower end of the conduit 11d.

[0031] The inner side of the upper end of the locking nut 11a is rotatably connected to the inner side of the infusion tube 100 through a thread. The locking nut 11a and the catheter 11d are an integrated structure. The outer side of the catheter 11d is limitedly sealed and connected to the inner sealing piece 11c and two groups of embedded heads 11e. The inner sealing piece 11c and the two groups of embedded heads 11e are all made of a rubber material. By using two groups of embedded heads 11e, the sealing connection effect between the fixed head 110 and the connecting head 120 can be enhanced. The inner sealing piece 11c can effectively prevent air from entering the fixed head 110 and the connecting head 120.

[0032] See also Figure 1-Figure 3As the first embodiment of the utility model: In order to solve the problem that in emergency situations, such as rescuing shock patients or requiring a large amount of fluid infusion, the delay in time may cause the patient's condition to worsen or even endanger his life, first, when the staff needs to quickly connect the infusion connector, first insert the fixed head 110 into the connector 120. Since the inner diameter length of the cross section of the embedded head 11e is the same as the inner diameter length of the cross section of the flow chamber 12d when the maximum compression degree of the embedded head 11e is reached, the embedded head 11e and the inner embedded groove 12e are sealed and embedded with each other. After the embedded head 11e enters the flow chamber 12d, a sealed environment can be formed for the inner wall of the flow chamber 12d until the embedded head 11e enters the inner embedded groove 12e. The cross section of the embedded head 11e is a trapezoidal structure, and the embedded head 11e can be sealed and embedded with the inner embedded groove 12e. Then, the fixed head 110 is rotated to make the connection thread 11b and the inner screw groove 12b thread screwed on the basis of the sealed embedding, so that the fixed head 110 and the connector 120 are completely sealed and connected.

[0033] The connector 120 includes an outer sealing sheet 12a and a limiting pipe groove 12f. The inner side of the outer sealing sheet 12a is provided with an inner thread groove 12b for connecting with the connecting thread 11b. The outer side of the outer sealing sheet 12a is provided with an infusion tube 100 for connection. A group of sealing ring gaskets 12c for sealing are provided on the right side inside the inner thread groove 12b.

[0034] A group of flow cavities 12d for guiding liquid are provided on the inner side of the sealing ring gasket 12c, and an embedded groove 12e for sealingly engaging with the insert head 11e is provided in the middle position of the flow cavity 12d. The embedded groove 12e can be used to seal and engage with the insert head 11e to prevent external air from entering and internal medicine from leaking out.

[0035] When the insert head 11e is compressed to the maximum extent, the inner diameter length of its cross section is the same as the inner diameter length of the inner cross section of the through-flow cavity 12d. The insert head 11e and the inner groove 12e are sealed and embedded with each other, and the cross section of the insert head 11e is a trapezoidal structure.

[0036] See also Figure 1-Figure 3 , as the second embodiment of the utility model: based on the description in the above embodiment, further, when the fixed head 110 and the connecting head 120 are screwed together by threads, the outer sealing sheet 12a can be sealed and fitted with the inner sealing sheet 11c, thereby preventing external air from entering the gap between the fixed head 110 and the connecting head 120, and preventing the drug solution inside the flow cavity 12d from penetrating.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A replaceable quick-connect infusion connector, comprising: An infusion tube (100), a fixing head (110), a connecting head (120) and a connecting tube (130), characterized in that: the lower end of the infusion tube (100) is provided with a fixing head (110) for sealingly connecting with the connecting head (120), and the lower end of the fixing head (110) is provided with a connecting head (120) for sealingly connecting with the fixing head (110); A connecting pipe (130) for guiding liquid is provided at the lower end of the connecting head (120); the interior of the fixing head (110) is a hollow structure; the connecting head (120) and the fixing head (110) are sealed and embedded; The interior of the fixed head (110) is a hollow structure, the interior of the fixed head (110) and the interior of the connecting head (120) are interconnected, and the interior of the connecting head (120) and the interior of the connecting pipe (130) are interconnected.

2. The replaceable quick-connect infusion connector according to claim 1, characterized in that: The fixing head (110) comprises a locking nut (11a) and a flow guide cavity (11f); a connecting thread (11b) for threaded tight connection is provided at the lower end of the locking nut (11a); a conduit (11d) for transmitting liquid is provided inside the connecting thread (11b).

3. The replaceable quick-connect infusion connector according to claim 2, characterized in that: An inner sealing sheet (11c) for sealing the inner side of the fixing head (110) and the connecting head (120) is provided on the outer side of the upper end of the conduit (11d), and two groups of embedded heads (11e) for sealing connection are provided on the outer side of the lower end of the conduit (11d).

4. The replaceable quick-connect infusion connector according to claim 2, characterized in that: The inner side of the upper end of the locking nut (11a) is rotatably connected to the inner side of the infusion tube (100) by thread, the locking nut (11a) and the catheter (11d) are an integrated structure, the outer side of the catheter (11d) is position-limitingly sealed connected to the inner sealing sheet (11c) and two groups of embedded heads (11e), and the inner sealing sheet (11c) and the two groups of embedded heads (11e) are both made of a rubber material.

5. The replaceable quick-connect infusion connector according to claim 3, characterized in that: The connector (120) comprises an outer sealing sheet (12a) and a limiting pipe groove (12f); an inner screw groove (12b) for connecting to a connecting thread (11b) is provided on the inner side of the outer sealing sheet (12a); an infusion tube (100) for connecting is provided on the outer side of the outer sealing sheet (12a); and a group of sealing ring gaskets (12c) for sealing are provided on the right side of the inner screw groove (12b).

6. The replaceable quick-connect infusion connector according to claim 5, characterized in that: A group of flow chambers (12d) for guiding liquid are provided inside the sealing ring gasket (12c), and an inner embedding groove (12e) for sealingly engaging with the embedding head (11e) is provided inside the middle position of the flow chamber (12d).

7. The replaceable quick-connect infusion connector according to claim 6, characterized in that: When the insert head (11e) is compressed to the maximum extent, the inner diameter length of its cross section is the same as the inner diameter length of the inner cross section of the through-flow cavity (12d); the insert head (11e) and the inner insert groove (12e) are sealed and embedded with each other; the cross section of the insert head (11e) is a trapezoidal structure.

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