Auxiliary device for catheter connection

Abstract

The utility model provides an auxiliary device for catheter connection. The auxiliary device comprises a middle transparent cylinder and two end transparent cylinders. A middle hole is formed in the middle transparent cylinder in the axial direction. The two end transparent cylinders are provided with receding holes, the two receding holes are communicated with the middle hole, the two end transparent cylinders are detachably installed at the two ends of the middle transparent cylinder in the axial direction respectively, and the two end transparent cylinders are further configured to limit the connecting position between the two guide pipes in the middle hole. According to the auxiliary device for catheter connection, the two end transparent cylinders and the middle transparent cylinder can separate the joint between the two catheters from the external environment, so that the joint is prevented from being polluted by pollution sources such as sweat or body fluid, a patient can be effectively protected, and the infection incidence rate is reduced. In conclusion, compared with the prior art, the middle transparent cylinder and the two end transparent cylinders are adopted, the operation can be effectively simplified while a patient is protected, and the use convenience can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and particularly relates to an auxiliary device for catheter connection. Background Art

[0002] During hemodialysis, it is usually necessary to connect a central venous catheter and a hemodialysis catheter to perform hemodialysis on the patient's blood. When performing hemodialysis treatment, the connection between the central venous catheter and the hemodialysis pipeline usually needs to be wrapped and fixed with a sterile gauze or a treatment towel to prevent the patient's sweat or body fluid from contaminating the connector. However, in actual application, in order to observe whether there is blood coagulation, blood leakage, etc. at the connection, medical staff need to frequently lift the sterile gauze or treatment towel, and it is easy to cause the sterile gauze or treatment towel to fall off, which is troublesome to operate. Summary of the Utility Model

[0003] The purpose of the embodiment of the present application is to provide an auxiliary device for catheter connection to solve the technical problem in the prior art that medical staff need to frequently lift the sterile gauze or treatment towel to observe the connection between the central venous catheter and the hemodialysis catheter, resulting in troublesome operation.

[0004] To achieve the above purpose, the technical solution adopted by the present application is: to provide an auxiliary device for catheter connection, including:

[0005] A middle transparent cylinder, the middle transparent cylinder is axially provided with a middle hole;

[0006] Two end transparent cylinders, both of the two end transparent cylinders are provided with avoidance holes, both of the two avoidance holes are communicated with the middle hole, and the two end transparent cylinders are respectively detachably installed at both axial ends of the middle transparent cylinder, and are further configured to limit the connection between the two catheters within the middle hole.

[0007] Optionally, the end transparent cylinder includes two end blocks and two avoidance grooves, the two end blocks are detachably installed at one axial end of the middle transparent cylinder, one of the end blocks is detachably installed on the other end block, and the two avoidance grooves are respectively opened on the two end blocks and can enclose to form the avoidance hole.

[0008] Optionally, both axial ends of the inner peripheral wall of the middle transparent cylinder are provided with internal thread sections; the outer peripheral walls of both ends of the two end blocks close to the middle transparent cylinder are provided with external thread sections, and the external thread sections are assembled into the internal thread sections.

[0009] Optionally, the inner peripheral wall of the middle transparent cylinder has an inner convex platform, and the inner convex platform is located between the two internal thread sections.

[0010] Optionally, the outer peripheral walls of both of the end blocks have outer convex platforms, and the outer convex platforms are located at one end of the external thread section away from the middle transparent cylinder.

[0011] Optionally, one of the end blocks is provided with a plurality of clamping grooves; the other end block has a plurality of clamping blocks, and the plurality of clamping blocks are clamped in the plurality of clamping grooves and are arranged in one-to-one correspondence.

[0012] Optionally, cavities are formed in both of the end blocks.

[0013] Optionally, the auxiliary device for catheter connection further includes a first sealing ring, and the first sealing ring abuts between the end block and the inner convex platform.

[0014] Optionally, the auxiliary device for catheter connection further includes a second sealing ring, and the second sealing ring abuts between the middle transparent cylinder and the outer convex platform.

[0015] Optionally, the auxiliary device for catheter connection further includes two sealing strips, one of the sealing strips abuts between one end of the two outer convex platforms in the circumferential direction, and the other sealing strip abuts between the other end of the two outer convex platforms in the axial direction.

[0016] The beneficial effects of the auxiliary device for catheter connection provided by the present application are as follows:

[0017] The auxiliary device for catheter connection provided by the present application can limit the connection part between two catheters in the middle hole of the middle transparent cylinder through two end transparent cylinders. Therefore, the two end transparent cylinders and the middle transparent cylinder can separate the connection part between the two catheters from the external environment, prevent pollution sources such as sweat or body fluids from contaminating the connection part, can effectively protect patients, and reduce the infection rate. In addition, both the middle transparent cylinder and the end transparent cylinders are made of transparent materials, and medical staff can directly observe the blood conditions in the two catheters in the middle connection cylinder and the two end connection cylinders. In summary, compared with the related art, the adoption of the middle transparent cylinder and the two end transparent cylinders can effectively simplify the operation while protecting patients, and help improve the convenience of use. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a three-dimensional view of the auxiliary device for catheter connection provided by the embodiment of the present application;

[0020] Figure 2 is a first - perspective sectional three - dimensional view of the auxiliary device for catheter connection provided by the embodiment of the present application;

[0021] Figure 3 is a second - perspective sectional three - dimensional view of the auxiliary device for catheter connection provided by the embodiment of the present application;

[0022] Figure 4 is Figure 3 an enlarged view of part A in

[0023] Among them, each reference numeral in the figure:

[0024] 100, middle transparent cylinder; 110, middle hole; 120, inner convex platform;

[0025] 200, end transparent cylinder; 210, avoidance hole; 220, end block; 230, avoidance groove; 240, outer convex platform; 250, clamping groove; 260, clamping block; 270, cavity;

[0026] 300, first sealing ring;

[0027] 400, second sealing ring;

[0028] 500, sealing strip. Detailed implementation manners

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0031] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present application.

[0032] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality of" means two or more unless otherwise specifically defined.

[0033] As Figures 1 to 4 shown, an embodiment of this application provides an auxiliary device for catheter connection, including an intermediate transparent cylinder 100 and two end transparent cylinders 200. The intermediate transparent cylinder 100 is axially provided with an intermediate hole 110. Both of the two end transparent cylinders 200 are provided with avoidance holes 210, and both of the two avoidance holes 210 communicate with the intermediate hole 110. The two end transparent cylinders 200 are respectively detachably mounted at both axial ends of the intermediate transparent cylinder 100, and are further configured to limit the connection part between two catheters within the intermediate hole 110.

[0034] It should be noted here that the axial directions above and below refer to the two-way directions of the central axis defined by the structure of the intermediate transparent cylinder 100 itself and the two-way directions of the central axis defined by the structure of the end transparent cylinder 200 itself, specifically as Figure 1 shown by the X axis in

[0035] Specifically, during hemodialysis, medical staff first sleeved the intermediate transparent cylinder 100 on the outer periphery of the central venous catheter or the hemodialysis catheter. After connecting the central venous catheter and the hemodialysis catheter, the medical staff moved the intermediate transparent cylinder 100 to the connection part between the central venous catheter and the hemodialysis catheter, so that the connection part between the central venous catheter and the hemodialysis catheter was located within the intermediate transparent cylinder 100. Then the medical staff respectively installed the two end transparent cylinders 200 onto the central venous catheter and the hemodialysis catheter through the two avoidance holes 210, and then respectively installed the two end transparent cylinders 200 at both ends of the intermediate transparent cylinder 100 to limit the connection part between the central venous catheter and the hemodialysis catheter within the intermediate hole 110 of the intermediate transparent cylinder 100.

[0036] The auxiliary device for catheter connection provided by this application can limit the connection between two catheters within the middle hole 110 of the middle transparent cylinder 100 through two end transparent cylinders 200. Therefore, the two end transparent cylinders 200 and the middle transparent cylinder 100 can separate the connection between the two catheters from the external environment, prevent pollution sources such as sweat or body fluids from contaminating the connection, effectively protect patients, and reduce the infection rate. In addition, both the middle transparent cylinder 100 and the end transparent cylinders 200 are made of transparent materials, and medical staff can directly observe the blood conditions in the two catheters within the middle connection cylinder and the two end connection cylinders. In summary, compared with the related art, the use of the middle transparent cylinder 100 and the two end transparent cylinders 200 can effectively simplify the operation while protecting patients, which helps to improve the convenience of use.

[0037] In an embodiment of the present application, please refer to Figures 1 to 4 , the end transparent cylinder 200 includes two end blocks 220 and two avoidance grooves 230. The two end blocks 220 are detachably installed at one end of the middle transparent cylinder 100 along the axial direction, and one of the end blocks 220 is detachably installed on the other end block 220. The two avoidance grooves 230 are respectively formed on the two end blocks 220 and can enclose to form an avoidance hole 210.

[0038] Specifically, in the actual application process, heparin caps are provided at the ends of the central venous catheter and the hemodialysis catheter, and the diameter of the heparin cap is larger than the diameters of the central venous catheter and the hemodialysis catheter. Moreover, during hemodialysis, the end transparent cylinder 200 needs to limit the connection between the central venous catheter and the hemodialysis catheter within the middle hole 110 of the middle transparent cylinder 100. Therefore, the end transparent cylinder 200 cannot be directly sleeved on the outer peripheries of the central venous catheter and the hemodialysis catheter through the heparin caps of the central venous catheter and the hemodialysis catheter, that is, interference will occur between the avoidance hole 210 of the end transparent cylinder 200 and the heparin cap.

[0039] More specifically, after the medical staff place the connection between the central venous catheter and the hemodialysis catheter within the middle hole 110 of the middle transparent cylinder 100, the medical staff first install the central venous catheter into the avoidance groove 230 of one of the end blocks 220, and then install the other end block 220 onto one of the end blocks 220 to assemble the two end blocks 220. At this time, the two avoidance grooves 230 enclose to form an avoidance hole 210, and the central venous catheter passes through the avoidance hole 210. The medical staff install the assembled two end blocks 220 at one end of the middle transparent cylinder 100 along the axial direction. The two end blocks 220 at the hemodialysis catheter are operated in the same way.

[0040] With such a setting, after assembly, through the two end blocks 220, it can be sleeved on the central venous catheter or hemodialysis catheter, avoiding interference between the avoidance hole 210 and the heparin cap at the catheter end, which may cause the end transparent cylinder 200 to be unable to be sleeved on the outer periphery of the catheter. Moreover, the assembly is convenient, which helps to improve the convenience of use.

[0041] In an embodiment of the present application, please refer to Figures 1 to 4 , internal thread segments (not shown in the figure) are provided at both axial ends of the inner peripheral wall of the middle transparent cylinder 100. External thread segments (not shown in the figure) are provided on the outer peripheral walls of the two end blocks 220 near one end of the middle transparent cylinder 100, and the external thread segments are assembled to the internal thread segments.

[0042] With such a setting, after assembly, the two external thread segments of the two end blocks 220 can be assembled to form a complete thread segment, enabling the two assembled end blocks 220 and the middle transparent cylinder 100 to be detachably installed. The disassembly and installation are convenient, which helps to improve the convenience of use. Moreover, after assembly, the two end blocks 220 and the middle transparent cylinder 100 adopt a screwed connection design, which helps to improve the structural stability between the end transparent cylinder 200 and the middle transparent cylinder 100. The end transparent cylinder 200 is not easily detached from the middle transparent cylinder 100, so that the connection between the two catheters can be stably limited within the middle hole 110.

[0043] In an embodiment of the present application, refer to Figures 1 to 4 , the inner peripheral wall of the middle transparent cylinder 100 has an inner convex platform 120, and the inner convex platform 120 is located between the two internal thread segments.

[0044] With such a setting, when installing the two end blocks 220 into the middle transparent cylinder 100, the inner convex platform 120 can form a limit along the axial direction with the two end blocks 220, preventing the two end blocks 220 from moving excessively and causing damage to the connection between the two catheters due to extrusion, thereby preventing blood leakage.

[0045] In an embodiment of the present application, please refer to Figures 1 to 4 , the outer peripheral walls of the two end blocks 220 both have outer convex platforms 240, and the outer convex platforms 240 are located at one end of the external thread segments far from the middle transparent cylinder 100.

[0046] With such a setting, when installing the two end blocks 220 into the middle transparent cylinder 100, the outer convex platforms 240 can form a limit along the axial direction with the middle transparent cylinder 100, preventing the two end blocks 220 from moving excessively and causing damage to the connection between the two catheters due to extrusion, thereby preventing blood leakage.

[0047] In an embodiment of the present application, please refer to Figures 1 to 4One of the end blocks 220 is provided with a plurality of snap-in slots 250. The other end block 220 has a plurality of snap-in blocks 260, which are snap-into the plurality of snap-in slots 250 and are arranged one by one.

[0048] In this way, by using a plurality of snap-in grooves 250 and a plurality of snap-in blocks 260, the two end blocks 220 can realize a detachable connection design, which is convenient for disassembly and installation, and easy for assembly, and helps to improve the convenience of use. In addition, after the two end blocks 220 are installed in the middle transparent tube 100, the use of a plurality of snap-in grooves 250 and a plurality of snap-in blocks 260 helps to improve the structural stability between the two end blocks 220, and is not easy to loosen, thereby helping to improve the limiting ability of the end transparent tube 200 on the connection between the two catheters.

[0049] In one embodiment of the present application, see Figures 1 to 4 , both end blocks 220 are provided with a cavity 270 .

[0050] Such a configuration, using the cavity 270, can reduce the weight of the end block 220, thereby preventing the connection between the two catheters from being overloaded due to the excessive weight of the end block 220, and can effectively protect the connection between the catheters, thereby preventing the catheters from bleeding as much as possible.

[0051] In one embodiment of the present application, see Figures 1 to 4 The auxiliary device for connecting the catheter further includes a first sealing ring 300 , which is held between the end block 220 and the inner boss 120 .

[0052] Such arrangement and the use of the first sealing ring 300 can prevent external pollution sources from entering the middle hole 110 from the gap between the end block 220 and the inner boss 120, thereby achieving a good sealing effect and effectively protecting the patient.

[0053] In one embodiment of the present application, please refer to Figures 1 to 4 The auxiliary device for connecting the catheter further includes a second sealing ring 400 , which is held between the middle transparent tube 100 and the outer boss 240 .

[0054] Such arrangement and the use of the second sealing ring 400 can prevent external pollution sources from entering the middle hole 110 from the gap between the middle transparent cylinder 100 and the outer boss 240, and has a good sealing effect, which can effectively protect the patient.

[0055] In one embodiment of the present application, see Figures 1 to 4 The auxiliary device for connecting the catheter also includes two sealing strips 500, one of which is supported between one end of the two outer bosses 240 along the circumferential direction, and the other sealing strip 500 is supported between the other ends of the two outer bosses 240 along the axial direction.

[0056] With such a setting, two sealing strips 500 are adopted, which can prevent external pollution sources from entering the space hole through the gap between the two end blocks 220, and have a good sealing effect, effectively protecting the patient.

[0057] One or more embodiments of the present application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the present application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of the present application shall be included within the protection scope of the present application.

Claims

1. A catheter connection auxiliary device, characterized in that: include: A middle transparent cylinder (100), wherein the middle transparent cylinder (100) is provided with a middle hole (110) along the axial direction; Two end transparent cylinders (200), both of which are provided with avoidance holes (210), both of which are in communication with the middle hole (110), and the two end transparent cylinders (200) are respectively detachably mounted on two ends of the middle transparent cylinder (100) along the axial direction, and are further configured to limit the connection between the two conduits within the middle hole (110).

2. The catheter connection auxiliary device according to claim 1, characterized in that: The end transparent tube (200) comprises two end blocks (220) and two avoidance grooves (230); the two end blocks (220) are detachably mounted on one end of the middle transparent tube (100) along the axial direction; one of the end blocks (220) is detachably mounted on the other end block (220); and the two avoidance grooves (230) are respectively opened on the two end blocks (220) and can enclose to form the avoidance hole (210).

3. The catheter connection auxiliary device according to claim 2, characterized in that: Both ends of the inner peripheral wall of the middle transparent cylinder (100) along the axial direction are provided with internal thread sections; the outer peripheral walls of the two end blocks (220) close to one end of the middle transparent cylinder (100) are provided with external thread sections, and the external thread sections are assembled on the internal thread sections.

4. The catheter connection auxiliary device according to claim 3, characterized in that: The inner peripheral wall of the middle transparent cylinder (100) has an inner boss (120), and the inner boss (120) is located between the two inner thread sections.

5. The catheter connection auxiliary device according to claim 3, characterized in that: The outer peripheral walls of the two end blocks (220) are each provided with an outer boss (240), and the outer boss (240) is located at an end of the outer thread section away from the middle transparent cylinder (100).

6. The catheter connection auxiliary device according to claim 2, characterized in that: One of the end blocks (220) is provided with a plurality of snap-in grooves (250); the other end block (220) has a plurality of snap-in blocks (260), and the plurality of snap-in blocks (260) are snap-into the plurality of snap-in grooves (250) and are arranged in a one-to-one correspondence.

7. The catheter connection auxiliary device according to claim 2, characterized in that: The two end blocks (220) are both provided with a cavity (270).

8. The catheter connection auxiliary device according to claim 4, characterized in that: The auxiliary device for connecting a catheter further comprises a first sealing ring (300), wherein the first sealing ring (300) is abutted between the end block (220) and the inner boss (120).

9. The catheter connection auxiliary device according to claim 5, characterized in that: The auxiliary device for connecting a catheter further comprises a second sealing ring (400), wherein the second sealing ring (400) is abutted between the middle transparent tube (100) and the outer boss (240).

10. The catheter connection auxiliary device according to claim 9, characterized in that: The auxiliary device for connecting a catheter further comprises two sealing strips (500), wherein one of the sealing strips (500) is abutted between one end of the two outer bosses (240) along the circumferential direction, and the other sealing strip (500) is abutted between the other ends of the two outer bosses (240) along the axial direction.

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