Needle-free closed infusion connector

Abstract

The utility model relates to the technical field of needleless closed infusion connectors, in particular to a needleless closed infusion connector which comprises a connector shell, and the top end of the connector shell is in threaded connection with a protective sleeve. The disinfection mechanism can efficiently disinfect the needleless closed infusion connector and recycle the device, and the disinfection mechanism is arranged on the inner wall of the protective sleeve; by arranging the disinfection mechanism, a guide groove is matched with a liquid guide groove in a fixing plate and a liquid guide groove in a connecting ring, so that disinfectant can be conveyed to aseptic cotton to disinfect the needleless closed infusion connector, and a rotating rod drives the aseptic cotton at the bottom end of the fixing plate to rotate to efficiently disinfect the needleless closed infusion connector; the sealing block can control the conveying amount of disinfectant in the liquid storage tank, the sealing block is supported through cooperation of a limiting plate on the surface of a fixing rod and a compression spring, the position of the sealing block can be controlled through a pull ring, the needleless closed infusion connector can be effectively disinfected, and the disinfection effect of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to needle -free closed infusion connector technical field, especially a needle -free closed infusion connector. BACKGROUND

[0002] The needle -free closed infusion connector is mainly used for the end closure of CVC (central venous catheter), PICC (peripherally inserted central catheter) and indwelling needle catheter, forms the closed infusion channel when the infusion appliance is connected with the needle -free closed infusion connector, and the needle -free closed infusion connector is in the closed state after the infusion appliance is pulled out, so that gas and external pollution source are prevented from entering the infusion catheter.

[0003] Through the search of Chinese patent "a needle -free closed infusion connector protective sleeve", the announcement number is "CN219208442U", the patent is through pressing the pressing block and the pressing film, is convenient for the cooperation of pressing block, fixed block, slide rod and slide cylinder, extrudes the spring, is convenient for the top piece to break the rubber film and enter the cavity, is convenient for the disinfectant or alcohol to be extruded into the disinfectant cotton through the through -hole, realizes the disinfection to the sealing septum on the connector body, so as to be convenient for the loosening of pressing block, and the spring rebound drives fixed block, pressing block etc. Return to the original state, simple and quick operation, convenient disinfection, convenient for people to use, but the cleaning effect of the device is not ideal when the needle -free closed infusion connector is cleaned, it is inconvenient to clean and disinfect the needle -free closed infusion connector efficiently and safely, and the use effect of the device is reduced.

[0004] Therefore, a needle -free closed infusion connector is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a needle -free closed infusion connector to solve the above problems, and improve the problem that it is inconvenient to clean and disinfect the needle -free closed infusion connector efficiently and safely.

[0006] The utility model realizes the above-mentioned purpose through the following technical scheme, a needle -free closed infusion connector, including the connector shell, the top of connector shell is connected with the protective sleeve of screw thread, disinfection mechanism can carry out efficient disinfection to needle -free closed infusion connector and the disinfection mechanism of recycling utilization of device is arranged on the inner wall of protective sleeve, wherein, the disinfection mechanism includes the rotary rod of rotary connection in the top of protective sleeve, one end of rotary rod penetrates protective sleeve and is fixedly connected with fixed plate, the bottom of fixed plate is provided with disinfectant cotton, the top of protective sleeve is provided with supplementary assembly.

[0007] Preferably, the disinfection mechanism further comprises a liquid storage groove formed in the inner wall of the protective sleeve, a guide groove is formed in the bottom end of the inner wall of the protective sleeve, a sealing block is arranged on one side of the inner wall of the guide groove, a fixed rod is fixedly connected to one side of the sealing block, a limiting plate is fixedly connected to the surface of the fixed rod, a compression spring is arranged on one side of the limiting plate, the disinfectant in the liquid storage groove can be controlled to soak the disinfection cotton, the disinfection cotton is rotated to drive the one end of the needle-free sealed infusion connector to be disinfected, and the disinfection effect of the device is improved.

[0008] Preferably, one end of the fixed rod penetrates through the protective sleeve and is fixedly connected with a pull ring, the pull ring can move the sealing block at one end of the fixed rod to transport disinfectant to the disinfection cotton, and the output amount of the disinfectant can be controlled.

[0009] Preferably, the top end of the fixed plate is fixedly connected with a connecting ring, the connecting ring is rotatably connected with the guide groove, and sealing treatment is performed between the connecting ring and the guide groove to prevent disinfectant from leaking.

[0010] Preferably, a plurality of uniformly distributed liquid guide grooves are formed in the top end of the fixed plate and the connecting ring, the liquid guide grooves are communicated with the guide groove, and disinfectant can be transported into the disinfection cotton through the liquid guide grooves.

[0011] Preferably, the supplementary assembly comprises a communication groove formed in one side of the top of the protective sleeve, the communication groove is communicated with the liquid storage groove, and a sealing bolt is threadedly connected to the inner wall of the communication groove, disinfectant in the liquid storage groove is supplemented through the communication groove, and the sealing bolt can seal the communication groove.

[0012] Preferably, a sealing ring is arranged between the bottom end of the sealing bolt and the protective sleeve, and the sealing ring can improve the sealing property between the sealing bolt and the communication groove.

[0013] Preferably, a plurality of uniformly distributed grooves are formed in the outer wall of the protective sleeve, and the protective sleeve is conveniently disassembled through the grooves.

[0014] The beneficial effects of the utility model are:

[0015] 1. By setting the disinfection mechanism, when the needle-free closed infusion connector is disinfected and used, the liquid storage groove in the protective sleeve can store the disinfectant, and the disinfectant can be transported to the disinfectant cotton through the guide groove and the guide groove on the connecting ring to disinfect the needle-free closed infusion connector, and the disinfectant cotton is rotated by rotating the rotating rod to drive the disinfectant cotton at the bottom of the fixed plate to rotate and disinfect the needle-free closed infusion connector, the connecting ring and the guide groove are rotatably connected and sealed, the disinfectant cotton and the fixed plate are movably connected, the used disinfectant cotton can be replaced, the sealing block on one side of the top of the guide groove can control the amount of disinfectant transported in the liquid storage groove, the sealing block is spherical to prevent disinfectant leakage, the sealing block is supported by the limiting plate on the surface of the fixed rod and the compression spring, and the position of the sealing block can be controlled by the pull ring, the needle-free closed infusion connector can be effectively disinfected, and the protective sleeve can be recycled to improve the disinfection effect of the device.

[0016] 2. By setting the supplement assembly, when the needle-free closed infusion connector is disinfected, the communication groove on one side of the top of the protective sleeve is in communication with the liquid storage groove to supplement the disinfectant in the liquid storage groove, improve the use effect of the device, the sealing bolt can close the communication groove, the sealing bolt and the communication groove are sealed, the sealing ring can improve the sealing effect between the sealing bolt and the communication groove, and the groove facilitates disassembly of the protective sleeve. The disinfectant in the protective sleeve can be supplemented in time to improve the use effect of the device. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the appearance structure schematic view of the utility model;

[0018] Figure 2 It is the disinfection mechanism structure schematic view of the utility model;

[0019] Figure 3 It is the disinfection mechanism structure schematic view of the utility model;

[0020] Figure 4 It is the supplement assembly structure schematic view of the utility model.

[0021] In the drawing: 1, connector housing; 2, protective sleeve; 3, disinfection mechanism; 301, rotating rod; 302, fixed plate; 303, disinfectant cotton; 304, liquid storage groove; 305, guide groove; 306, sealing block; 307, fixed rod; 308, limiting plate; 309, compression spring; 310, pull ring; 311, connecting ring; 312, guide groove; 313, supplement assembly; 3131, communication groove; 3132, sealing bolt; 3133, sealing ring; 3134, groove. DETAILED DESCRIPTION

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In practical implementation: such as Figures 1-4 As shown, a needleless closed infusion connector includes a connector housing 1, with a protective sleeve 2 threadedly connected to the top of the connector housing 1; a disinfection mechanism 3, which can efficiently disinfect the needleless closed infusion connector and recycle the device, is disposed on the inner wall of the protective sleeve 2; wherein, the disinfection mechanism 3 includes a rotating rod 301 rotatably connected to the top of the protective sleeve 2, one end of the rotating rod 301 passing through the protective sleeve 2 and fixedly connected to a fixing plate 302, a disinfection cotton 303 being disposed at the bottom of the fixing plate 302, and a supplementary component 313 being disposed at the top of the protective sleeve 2.

[0024] like Figure 2 and Figure 3 As shown, the disinfection mechanism 3 also includes a liquid storage tank 304 formed on the inner wall of the protective sleeve 2. A guide groove 305 is formed at the bottom end of the inner wall of the protective sleeve 2. A sealing block 306 is provided on one side of the inner wall of the guide groove 305. A fixing rod 307 is fixedly connected to one side of the sealing block 306. A limiting plate 308 is fixedly connected to the surface of the fixing rod 307. A compression spring 309 is provided on one side of the limiting plate 308. One end of the fixing rod 307 passes through the protective sleeve 2 and is fixedly connected to a pull ring 310. A connecting ring 311 is fixedly connected to the top of the fixing plate 302. The connecting ring 311 is rotatably connected to the guide groove 305. Several evenly distributed liquid guiding grooves 312 are formed at the top of both the fixing plate 302 and the connecting ring 311. The liquid guiding groove 312 is connected to the guide groove 305. When disinfecting the needleless closed infusion connector, the sealing block 306 at one end of the fixed rod 307 is released from the restriction of the guide groove 305 by the pull ring 310, so that the disinfectant flows from the storage tank 304 to the guide groove 305. The connecting ring 311 at the top of the fixed plate 302 delivers the disinfectant to the disinfectant cotton 303 through the liquid guiding groove 312. When the rotating rod 301 drives the disinfectant cotton 303 at the bottom of the fixed plate 302 to rotate and disinfect the needleless closed infusion connector, the connecting ring 311 rotates in the guide groove 305. The connecting ring 311 and the guide groove 305 are sealed to prevent the disinfectant from leaking when it rotates, thereby improving the disinfection effect of the device.

[0025] like Figure 4As shown, the supplementary assembly 313 comprises a communication groove 3131 opened on one side of the top of the protective sleeve 2, the communication groove 3131 is communicated with the liquid storage groove 304, the inner wall of the communication groove 3131 is screw-connected with a sealing bolt 3132, the bottom end of the sealing bolt 3132 is provided with a sealing ring 3133 between the protective sleeve 2, the outer wall of the protective sleeve 2 is provided with a plurality of evenly distributed grooves 3134, when the disinfectant is supplemented, the protective sleeve 2 is screw-connected with the communication groove 3131 through the sealing bolt 3132, so that the communication groove 3131 can be quickly opened to supplement the disinfectant, the sealing bolt 3132 can seal the communication groove 3131 through the sealing ring 3133, the protective sleeve 2 can be quickly disassembled through the grooves 3134, the disinfectant in the protective sleeve 2 can be supplemented in time, and the use effect of the device is improved.

[0026] In use, the manual pulling of the pull ring 310 drives the sealing block 306 at one end of the fixing rod 307 to slide from the guide groove 305 to one side, the disinfectant in the liquid storage groove 304 is transported into the disinfectant cotton 303 through the cooperation of the guide groove 305, the connecting ring 311 and the liquid guide groove 312 in the fixed plate 302, the manual rotation of the rotating rod 301 drives the disinfectant cotton 303 to rotate to disinfect one end of the needle-free sealed infusion connector, the fixing rod 307 cooperates with the compression spring 309 through the limiting plate 308 to make the sealing block 306 slide to the other side to seal the guide groove 305, the sealing bolt 3132 is screw-connected with the communication groove 3131 and is manually rotated to be opened upward, and the disinfectant in the liquid storage groove 304 is supplemented through the communication groove 3131.

[0027] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A needleless access connector comprising: Include: The joint shell (1), the top end of the joint shell (1) is threaded with a protective sleeve (2); The disinfection mechanism (3) can be used for high-efficiency disinfection of needle-free closed infusion connector and recycling of the device, and the disinfection mechanism (3) is arranged on the inner wall of the protective sleeve (2); Wherein, the disinfection mechanism (3) includes a rotating rod (301) rotatably connected to the top end of the protective sleeve (2), one end of the rotating rod (301) penetrates the protective sleeve (2) and is fixedly connected with a fixed plate (302), the bottom end of the fixed plate (302) is provided with a disinfection cotton (303), and the top end of the protective sleeve (2) is provided with a supplement assembly (313).

2. The needleless infusion connector of claim 1, wherein: The disinfection mechanism (3) further comprises a liquid storage groove (304) formed in the inner wall of the protective sleeve (2), a guide groove (305) is formed in the bottom end of the inner wall of the protective sleeve (2), a sealing block (306) is arranged on one side of the inner wall of the guide groove (305), the sealing block (306) is fixedly connected with a fixed rod (307) on one side, the surface of the fixed rod (307) is fixedly connected with a limiting plate (308), and the limiting plate (308) is provided with a compression spring (309) on one side.

3. The needleless fluid exchange junction of claim 2, wherein: One end of the fixed rod (307) penetrates the protective sleeve (2) and is fixedly connected with a pull ring (310).

4. The needleless fluid exchange junction of claim 2, wherein: The top end of the fixed plate (302) is fixedly connected with a connecting ring (311), and the connecting ring (311) is rotatably connected with the guide groove (305).

5. The needleless fluid exchange junction of claim 4, wherein: The top end of the fixed plate (302) and the connecting ring (311) are provided with a plurality of evenly distributed liquid guide grooves (312), and the liquid guide grooves (312) are communicated with the guide groove (305).

6. The needleless fluid exchange junction of claim 1 further comprising: The supplement assembly (313) includes a communication groove (3131) formed on one side of the top of the protective sleeve (2), the communication groove (3131) is communicated with the liquid storage groove (304), and the inner wall of the communication groove (3131) is threaded with a sealing bolt (3132).

7. The needleless fluid exchange junction of claim 6, wherein: The bottom end of the sealing bolt (3132) and the protective sleeve (2) are provided with a sealing ring (3133).

8. The needleless fluid exchange junction of claim 1, wherein: A plurality of recesses (3134) are formed on the outer wall of the protective sleeve (2).

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