Hemodialysis tubing connection structure

Abstract

The application provides a hemodialysis pipeline connecting structure, which comprises a first connector, one end of which is connected with one pipeline, and the outer side of which is provided with an outer thread ring; a second connector, one end of which is connected with another pipeline, and the outer side of the other end of which is axially rotatably installed with an inner thread sleeve, which can be screwed with the outer thread ring; and a sterilization assembly, which is used for releasing sterilization liquid into the inner thread sleeve. The first connector and the second connector are screwed and connected through the inner thread sleeve and the outer thread ring, so that the connection between the patient end pipeline and the dialysis equipment end pipeline can be realized. When the inner thread sleeve is screwed with the outer thread ring, a closed space is formed between the first connector and the second connector, and the sterilization assembly releases sterilization liquid into the inner thread sleeve, so that the sterilization liquid can sterilize and treat the first connector and the second connector in the closed space, and the first connector and the second connector are prevented from being secondarily contaminated before they are completely docked.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dialysis, in particular to a blood dialysis pipeline connecting structure. BACKGROUND

[0002] Blood dialysis utilizes the principle of semi-permeable membrane, through diffusion, convection, adsorption and other mechanisms, the patient's blood is led out of the body, and the material exchange is carried out with dialysate, so as to remove the metabolic waste in the body, maintain electrolyte and acid-base balance, and remove excess water in the body, and the purified blood is retransfused into the body. Before blood dialysis, the pipeline at the patient end needs to be connected with the pipeline at the dialysis equipment end in order to transport blood, and iodophor needs to be smeared on the connecting ends of the two pipelines before the two pipelines are connected, so as to prevent blood pollution. However, the two pipelines are still exposed to the air after the iodophor is smeared, which may still have a risk of pollution between the time period from smearing the iodophor to complete connection. SUMMARY

[0003] In view of the deficiencies in the prior art, the present application provides a blood dialysis pipeline connecting structure to solve the above problems.

[0004] The purpose of the present application is achieved by the following technical solutions:

[0005] The blood dialysis pipeline connecting structure provided by the present application comprises:

[0006] A first connector, one end of which is connected with one of the pipelines, and an outer thread ring is arranged on the outer side of the first connector;

[0007] A second connector, one end of which is connected with the other pipeline, and an inner thread sleeve is axially rotatably installed on the outer side of the other end of the second connector, and the inner thread sleeve can be screwed with the outer thread ring;

[0008] A disinfection assembly for releasing disinfectant into the inner thread sleeve.

[0009] Further, an installation hole is formed in one side of the inner thread sleeve, the disinfection assembly comprises a disinfectant cartridge, the disinfectant cartridge is installed on the inner thread sleeve, one end of the disinfectant cartridge is slidably inserted with a piston column, and the other end of the disinfectant cartridge is connected with a spray head, and the spray head is installed in the installation hole.

[0010] Further, an abutting arc strip is arranged on the outer wall of the second connector, one end of the abutting arc strip is helically wrapped around the outer wall of the second connector and gradually approaches the inner thread sleeve, the piston column is located at one end of the disinfectant cartridge close to the abutting arc strip, and the outer end of the piston column abuts the path of the abutting arc strip.

[0011] Further, the outer wall of the second joint is provided with a sleeve, the outer end of the sleeve is slidingly provided with a latch, the outer end of the latch is provided with a buckle, the buckle can be clamped on the part of the piston column outside the disinfectant tank to prevent the inner threaded sleeve from rotating.

[0012] Further, the outer end of the piston column is provided with an abutting head, when the buckle is clamped on the piston column, the buckle can be located between the abutting head and the disinfectant tank to limit the shortest distance of the part of the piston column outside the disinfectant tank, so that the piston column can abut against the end of the abutting arc away from the inner threaded sleeve.

[0013] Further, the end of the first joint and the second joint close to each other is respectively provided with a sealing gasket.

[0014] Further, the end of the first joint and the second joint close to each other is respectively provided with a plurality of insertion holes, and the end of the first joint and the second joint close to each other is respectively provided with a plurality of insertion rods capable of being inserted into the insertion holes of the other.

[0015] Further, the first joint and the second joint each have a movable cavity, each of the movable cavities is slidingly installed with a sliding sheet along the axial direction of the first joint or the second joint, the side of the two sliding sheets close to each other is provided with a plug, the size of the plug is matched with the size of the port of the end of the first joint or the second joint close to each other, a spring is connected between the sliding sheet and the inner wall of the movable cavity to provide elastic force to block the port of the first joint or the second joint with the plug, and a plurality of flow-through openings are formed around the plug on the sliding sheet.

[0016] Further, the outer side of the first joint and the second joint is respectively provided with a first positioning block and a second positioning block.

[0017] From the above technical solution, the blood dialysis pipeline connecting structure provided by the application has the following advantages:

[0018] 1. The first joint and the second joint are connected by rotating the inner threaded sleeve and the outer threaded ring, which can realize the connection between the patient end pipeline and the dialysis equipment end pipeline, and when the inner threaded sleeve and the outer threaded ring are connected, a sealed space can be formed between the first joint and the second joint, and the disinfectant assembly can release disinfectant into the inner threaded sleeve, so that the disinfectant can disinfect the first joint and the second joint in the sealed space, preventing the first joint and the second joint from being contaminated again before they are completely connected.

[0019] 2. When the inner threaded sleeve is screwed with the outer threaded ring, the inner threaded sleeve will drive the disinfectant liquid tank to rotate around the outer wall of the second joint, so that the piston column moves along the path of the pressing arc and is continuously pressed by the pressing arc into the disinfectant liquid tank, so that the spray head can not only release disinfectant liquid while rotating to expand the coverage area of the disinfectant liquid and improve the disinfection effect, but also release disinfectant liquid synchronously during the screwing of the inner threaded sleeve and the outer threaded ring, thereby improving the efficiency of pipeline connection and disinfection. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present application, the drawings required in the specific embodiments will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the blood dialysis pipeline connection structure of the present application.

[0022] Figure 2 It is a sectional view of the front view schematic diagram of an embodiment of the blood dialysis pipeline connection structure of the present application.

[0023] Figure 3 It is Figure 2 It is an enlarged view of A in FIG.

[0024] Figure 4 It is Figure 2 It is a sectional view of B-B in FIG.

[0025] Reference signs:

[0026] The first joint 1, the outer threaded ring 11, the sealing gasket 12, the insertion hole 13, the insertion rod 14, the movable cavity 15, the first positioning block 16.

[0027] The second joint 2, the inner threaded sleeve 21, the mounting hole 211, the pressing arc 22, the insertion sleeve 23, the insertion pin 231, the buckle 232, the second positioning block 24.

[0028] The disinfection assembly 3, the disinfectant liquid tank 31, the piston column 32, the abutting joint 321, the spray head 33.

[0029] The sliding sheet 4, the plug 41, the spring 42, the flow-through port 43. DETAILED DESCRIPTION

[0030] In order to make the above objectives, features and advantages of the present application more clear and comprehensible, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific details disclosed herein. Thus, the present application is not intended to be limited to the embodiments described herein and illustrated in the drawings.

[0031] It is to be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. As used herein the terms "vertical", "horizontal", "left", "right" and the like are merely used for the purpose of illustration and are not intended to be limiting.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0033] As shown in Figures 1-4 The blood dialysis pipe connecting structure provided by the embodiment comprises a first connector 1, a second connector 2 and a disinfecting assembly 3.

[0034] The first connector 1 and the second connector 2 are both tubular connectors. One end of the first connector 1 is connected to one pipe, and an outer threaded ring 11 is arranged on the outer side of the first connector 1. One end of the second connector 2 is connected to another pipe, and an inner threaded sleeve 21 is axially rotatably arranged on the outer side of the other end of the second connector 2. The inner threaded sleeve 21 extends out of the end of the second connector 2, and the first connector 1 and the second connector 2 can be butted by rotating the inner threaded sleeve 21 to screw it with the outer threaded ring 11. The ends of the first connector 1 and the second connector 2 away from the pipes are directed towards each other.

[0035] Preferably, the ends of the first connector 1 and the second connector 2 directed towards each other are respectively provided with sealing gaskets 12 made of rubber or silicone to improve the tightness of the connection between the first connector 1 and the second connector 2.

[0036] The disinfecting assembly 3 is used to release disinfecting liquid into the inner threaded sleeve 21.

[0037] In specific use, the first connector 1 and the second connector 2 are screwed and connected by the inner threaded sleeve 21 and the outer threaded ring 11, the connection between the patient end pipeline and the dialysis equipment end pipeline can be realized, and when the inner threaded sleeve 21 and the outer threaded ring 11 are screwed, a closed space is formed between the first connector 1 and the second connector 2, and the sterilization assembly 3 releases the sterilization liquid into the inner threaded sleeve 21, so that the sterilization liquid can sterilize and treat the first connector 1 and the second connector 2 in the closed space, and the first connector 1 and the second connector 2 are prevented from being secondarily contaminated before they are completely docked.

[0038] Specifically, the inner threaded sleeve 21 is provided with a mounting hole 211 on one side, the sterilization assembly 3 includes a sterilization liquid tank 31, the sterilization liquid tank 31 can contain iodophor and other sterilization liquids, the sterilization liquid tank 31 is installed on the inner threaded sleeve 21, a piston column 32 is slidably inserted into one end of the sterilization liquid tank 31, and a spray head 33 is connected to the other end of the sterilization liquid tank 31 through a connecting pipe, the spray head 33 is installed in the mounting hole 211, and the sterilization liquid can be sprayed in mist form from the spray head 33 into the inner threaded sleeve 21 by extruding the piston column 32 into the sterilization liquid tank 31, so that the sterilization liquid is uniformly released.

[0039] In an embodiment, the outer wall of the second connector 2 is provided with a pressing arc strip 22, one end of the pressing arc strip 22 spirally surrounds the outer wall of the second connector 2 and gradually tends to be close to the inner threaded sleeve 21, the piston column 32 is located at one end of the sterilization liquid tank 31 close to the pressing arc strip 22, and the outer end of the piston column 32 abuts against the path of the pressing arc strip 22. When the inner threaded sleeve 21 is rotated to be screwed with the outer threaded ring 11, the inner threaded sleeve 21 will synchronously drive the sterilization liquid tank 31 to rotate around the outer wall of the second connector 2, so that the piston column 32 moves along the path of the pressing arc strip 22 and is continuously extruded into the sterilization liquid tank 31 by the pressing arc strip 22, so that the spray head 33 can not only release the sterilization liquid while rotating to expand the coverage area of the sterilization liquid and improve the sterilization effect, but also can synchronously release the sterilization liquid during the screwing process of the inner threaded sleeve 21 and the outer threaded ring 11, thereby improving the efficiency of pipeline connection and sterilization.

[0040] It should be noted that in the initial state, the piston column 32 should abut against the position of the pressing arc strip 22 farthest from the inner threaded sleeve 21, so as to ensure that there is sufficient sterilization liquid in the sterilization liquid tank 31.

[0041] Furthermore, the outer wall of the second connector 2 is provided with a sleeve 23, and a pin 231 is slidably inserted into the outer end of the sleeve 23. A buckle 232 is provided at the outer end of the pin 231. The inner wall of the buckle 232 is arc-shaped to fit the surface of the piston column 32, and the buckle 232 is made of elastic plastic. The buckle 232 can lock the part of the piston column 32 outside the disinfectant tank 31 to restrict the piston column 32 from rotating around the outer wall of the second connector 2, thereby preventing the inner threaded sleeve 21 from rotating. This helps to prevent the inner threaded sleeve 21 from being accidentally rotated when it is not screwed onto the outer threaded ring 11. When it is necessary to rotate the inner threaded sleeve 21, simply press the pin 231 into the sleeve 23 to disengage the buckle 232 from the piston column 32.

[0042] Preferably, the outer end of the piston column 32 is provided with an abutment 321, which abuts against the pressing arc strip 22. When the buckle 232 engages the piston column 32, the buckle 232 can be located between the abutment 321 and the disinfectant tank 31 to limit the shortest distance of the piston column 32 outside the disinfectant tank 31, so that the piston column 32 can abut against the end of the pressing arc strip 22 away from the inner threaded sleeve 21, that is, the piston column 32 is in the initial state, ready to press the disinfectant.

[0043] like Figure 2 As shown, in one embodiment, the first connector 1 and the second connector 2 are each provided with a plurality of insertion holes 13 at their respective ends, and the first connector 1 and the second connector 2 are each provided with a plurality of insertion rods 14 that can be inserted into the other's insertion holes 13, so that the first connector 1 and the second connector 2 can be radially fixed during the docking process, which facilitates the rotation of the internal thread sleeve 21.

[0044] Preferably, both the first connector 1 and the second connector 2 have a movable cavity 15. Each movable cavity 15 has a sliding plate 4 slidably installed along the axial direction of the first connector 1 or the second connector 2. A plug 41 is provided on the side of the two sliding plates 4 that is close to each other. The size of the plug 41 is adapted to the size of the port of the first connector 1 or the second connector 2 that is close to each other. A spring 42 is connected between the sliding plate 4 and the inner wall of the movable cavity 15 to provide elastic force so that the plug 41 blocks the port of the first connector 1 or the second connector 2. Multiple flow ports 43 are opened around the plug 41 on the sliding plate 4. When the first connector 1 and the second connector 2 are not connected, the two sliding plates 4 are pushed towards the end ports of the first connector 1 and the second connector 2 that are close to each other under the elastic force of the spring 42, and the plug 41 blocks the port. This helps to prevent the first connector 1, the second connector 2 and the inside of the two pipes from being contaminated. When the first connector 1 and the second connector 2 begin to connect, the two sliding plates 4 will be pushed by the insertion rod 14, so that the plug 41 leaves the port of the first connector 1 and the second connector 2, and a passage is formed inside the first connector 1 and the second connector 2 through the flow port 43.

[0045] In order to enable the alignment of each of the insertion rods 14 to be inserted into the corresponding insertion hole 13, further, the outer side of the first joint 1 and the second joint 2 is respectively provided with a first positioning block 16 and a second positioning block 24, when the first positioning block 16 and the second positioning block 24 are located on the same side of the first joint 1 and the second joint 2, each of the insertion rods 14 will be coaxial with the corresponding insertion hole 13.

[0046] The above embodiments are only used to illustrate the technical solutions of the present application, rather than limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application.

Claims

1. A hemodialysis tubing connection structure, characterized by, The utility model relates to a pipe joint, which comprises: a first joint having one end connected to one pipe and an outer thread ring provided on the outer side thereof; a second joint having one end connected to another pipe and an inner thread sleeve provided on the outer side of the other end thereof, the inner thread sleeve being capable of being screwed with the outer thread ring; a disinfecting assembly for releasing disinfecting liquid into the inner thread sleeve; one side of the inner thread sleeve is provided with a mounting hole, and the disinfecting assembly comprises a disinfecting liquid tank mounted on the inner thread sleeve, one end of the disinfecting liquid tank being slidably provided with a piston rod and the other end thereof being connected with a spray head, the spray head being mounted in the mounting hole; the outer wall of the second joint is provided with a pressing arc, one end of the pressing arc being helically arranged around the outer wall of the second joint and gradually approaching the inner thread sleeve, the piston rod being located at one end of the disinfecting liquid tank close to the pressing arc, and the outer end of the piston rod being in contact with the path of the pressing arc; the end of the first joint and the end of the second joint close to each other are respectively provided with a plurality of insertion holes, and the end of the first joint and the end of the second joint close to each other are respectively provided with a plurality of insertion rods capable of being inserted into the insertion holes of the other end; the first joint and the second joint each have a movable cavity, and each of the movable cavities is slidably provided with a sliding plate along the axial direction of the first joint or the second joint, the side of the two sliding plates close to each other is provided with a plug, the size of the plug is matched with the size of the port of the end of the first joint or the second joint close to each other, a spring is connected between the sliding plate and the inner wall of the movable cavity to provide elastic force to block the port of the first joint or the second joint, and a plurality of flow-through openings are provided around the plug on the sliding plate.

2. The hemodialysis tubing connection structure according to claim 1, wherein the outer wall of the second joint is provided with a sleeve, the outer end of the sleeve is slidably provided with a latch, the outer end of the latch is provided with a buckle, and the buckle can clamp the part of the piston rod outside the disinfecting liquid tank to prevent the inner thread sleeve from rotating.

3. The hemodialysis tubing connection structure according to claim 2, wherein the outer end of the piston rod is provided with an abutting head, when the buckle clamps the piston rod, the buckle can be located between the abutting head and the disinfecting liquid tank to limit the shortest distance of the part of the piston rod outside the disinfecting liquid tank, so that the piston rod can abut against the end of the pressing arc away from the inner thread sleeve.

4. The hemodialysis tubing connection structure according to claim 1, wherein the end of the first joint and the end of the second joint close to each other are respectively provided with sealing gaskets.

5. The hemodialysis tubing connection structure according to claim 1, wherein the outer side of the first joint and the outer side of the second joint are respectively provided with first positioning blocks and second positioning blocks.

Images