Temporary dialysis catheter structure capable of being rotatably fixed

Abstract

The utility model relates to the technical field of dialysis catheters, and discloses a rotatable and fixed temporary dialysis catheter structure which comprises a main butt joint assembly and two infusion tubes, the upper end of the main butt joint assembly is provided with two replacement assemblies used for enabling the two infusion tubes to be in butt joint with the main butt joint assembly, and the two sides of the upper end of the main butt joint assembly are further provided with clamping assemblies. The components can effectively prevent the replacement component from reversing after rotating and fixing, the device adopts a threaded screwing connection mode, so that the connection between the replacement component and the main butt joint component is tighter, and meanwhile, through the matching of the clamping component and the replacement component, even when a patient moves, the replacement component can be prevented from reversing. The replacement assembly and the main butt-joint assembly can be effectively prevented from loosening or falling off, and due to the design, the safety of dialysis treatment is improved, the continuity of treatment is ensured, and more reliable dialysis treatment experience is provided for a patient.

Description

TECHNICAL FIELD

[0001] The utility model relates to dialysis catheter technical field, specifically, relate to a rotatable fixed temporary dialysis catheter structure. BACKGROUND

[0002] Temporary dialysis catheter is a kind of medical catheter used in emergency or special situation, usually used for hemodialysis treatment, generally refers to temporary central venous catheter, can play a role when patient appears serious heart failure, hyperkalemia, severe metabolic acidosis and other emergency conditions, or needs to enter long-term dialysis without preparing long-term dialysis vascular access in advance, temporary dialysis catheter can be indwelled time is 1-3 weeks, longest not more than 2 months, to avoid the occurrence of complications such as drop, infection, effective nursing during dialysis can prolong the catheter use time, maximum limit reduces catheter-related infection.

[0003] The conventional temporary dialysis catheter in prior art is crucial in the process of dialysis treatment, however, the traditional catheter usually adopts the mode of directly inserting and docking when replacing two infusion tubes, this mode is simple to operate, but there is certain safety hazard, especially in the process of patient activity, since the connection between catheter and infusion tube is not stable enough, it is easy to drop, once the infusion tube drops, not only the continuity of dialysis treatment will be affected, but also the patient can be brought additional pain and risk, in addition, the dropped infusion tube can also cause pollution of medical environment, increase the risk of infection, therefore, the technical personnel in the technical field provide a rotatable fixed temporary dialysis catheter structure to solve the problems raised in the background art UTILITARIAN CONTENT

[0004] The utility model aims at providing a rotatable fixed temporary dialysis catheter structure, solve the problem that the conventional catheter in prior art is usually directly inserted and docked when replacing two infusion tubes, this mode is simple to operate, but there is certain safety hazard, especially in the process of patient activity, since the connection between catheter and infusion tube is not stable enough, it is easy to drop, once the infusion tube drops, not only the continuity of dialysis treatment will be affected, but also the patient can be brought additional pain and risk, in addition, the dropped infusion tube can also cause pollution of medical environment, increase the risk of infection.

[0005] The utility model provides following technical scheme: a rotatable fixed temporary dialysis catheter structure, including main docking assembly and two infusion tubes, the main docking assembly upper end is provided with two replacement components for the docking of two infusion tubes with main docking assembly, the main docking assembly upper end is provided with the clamping assembly that prevents replacement component reverse at both sides.

[0006] As the preferred technical scheme of the above, the main docking assembly comprises a tee pipe, outer threaded pipes are fixedly sleeved at both ends of the tee pipe, lower sealing rings are fixedly sleeved at the lower center of the outer threaded pipes, and a retention pipe is fixedly connected to the lower center of the tee pipe.

[0007] As the preferred technical scheme of the above, the two clamping assemblies each comprise a fixed pipe, the fixed pipes are fixedly sleeved at the outer sides of the two pipelines at the upper part of the tee pipe, lower support rings are fixedly sleeved at the outer sides of the fixed pipes, and a plurality of arc-shaped elastic sheets are annularly arranged and fixedly connected to the upper end center edge of the lower support rings.

[0008] As the preferred technical scheme of the above, the upper end of the plurality of arc-shaped elastic sheets is fixedly connected to two upper support rings, the upper support rings are slidingly sleeved at the outer sides of the two pipelines at the upper part of the tee pipe, pressure plates are fixedly connected to the two sides of the upper support rings, and lower clamping rings are fixedly connected to the upper end center edge of the upper support rings.

[0009] As the preferred technical scheme of the above, the replacement assembly comprises an internally threaded pipe, the internally threaded pipe is threadedly sleeved at the outer side of the outer threaded pipe, the internally threaded pipe and the outer threaded pipe are detachably connected, an annular support sheet is fixedly sleeved at the lower center of the outer side of the internally threaded pipe, an upper sealing ring is fixedly connected to the lower end of the internally threaded pipe, the upper sealing ring and the lower sealing ring abut against each other, an upper clamping ring is fixedly connected to the lower center edge of the annular support sheet, and the upper clamping ring and the lower clamping ring are clamped against each other.

[0010] As the preferred technical scheme of the above, the two infusion pipes are fixedly sleeved at the inner upper part of the two internally threaded pipes.

[0011] Compared with the prior art, the temporary dialysis catheter structure has the following beneficial effects:

[0012] The upper end of the main docking assembly is designed with two replacement assemblies, which are used to dock the two infusion pipes with the main docking assembly, and the two sides of the upper end of the main docking assembly are also provided with clamping assemblies to prevent the replacement assemblies from reversing after being rotationally fixed. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1Fig. 1 is a perspective view of a rotatable fixed temporary dialysis catheter structure;

[0014] Figure 2 Fig. 2 is an exploded view of a rotatable fixed temporary dialysis catheter structure;

[0015] Figure 3 Fig. 3 is a perspective exploded view of a snap assembly of a rotatable fixed temporary dialysis catheter structure;

[0016] Figure 4 Fig. 4 is a perspective view of a replacement assembly of a rotatable fixed temporary dialysis catheter structure;

[0017] Figure 5 Fig. 5 is a perspective view of another view of a replacement assembly of a rotatable fixed temporary dialysis catheter structure.

[0018] Fig. 6 is a legend;

[0019] 1, main docking assembly; 101, tee pipe; 102, outer threaded pipe; 103, lower sealing ring; 104, retention pipe; 2, snap assembly; 201, fixed pipe; 202, lower support ring; 203, arc-shaped elastic sheet; 204, upper support ring; 205, pressing plate; 206, lower snap ring; 3, replacement assembly; 301, inner threaded pipe; 302, annular support sheet; 303, upper sealing ring; 304, upper snap ring; 4, infusion pipe. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application.

[0021] As Figure 1 and Figure 2As shown, the utility model provides a technical scheme: a rotatable fixed temporary dialysis catheter structure, including main butt joint subassembly 1 and two infusion tube 4, two replacement components 3 for butt joint of two infusion tube 4 with main butt joint subassembly 1 are provided on the upper end of main butt joint subassembly 1, the clamping component 2 that prevents replacement component 3 reverse is arranged on the upper end of main butt joint subassembly 1 both sides, on the upper end of main butt joint subassembly 1, design has two replacement components 3, they are specially used for butt joint of two infusion tube 4 with main butt joint subassembly 1, to ensure the stability of connection, the two sides of the upper end of main butt joint subassembly 1 are also equipped with clamping component 2, these components can effectively prevent replacement component 3 reverse after rotating and fixing, the connecting mode of screwing of the utility model is adopted, make the connection between replacement component 3 and main butt joint subassembly 1 more closely, simultaneously, through the cooperation of clamping component 2 and replacement component 3, even when patient activity, replacement component 3 and main butt joint subassembly 1 can effectively avoid the situation of loosening or falling off, this design not only improves the security of dialysis treatment, also ensures the continuity of treatment, provides more reliable dialysis treatment experience for patient.

[0022] As an embodiment in the present embodiment, as shown in the figure, Figure 2 The main butt joint subassembly 1 includes a tee 101, an outer threaded pipe 102 is fixedly sleeved on both ends of the tee 101, a lower sealing ring 103 is fixedly sleeved on the outer side of the center of the two outer threaded pipes 102, and a retention pipe 104 is fixedly connected to the lower center of the tee 101. The tee 101 is the core of the main butt joint subassembly 1, and an outer threaded pipe 102 is fixedly sleeved on both ends of the tee 101. When the infusion tube 4 needs to be connected, the inner threaded pipe 301 in the replacement component 3 is threadedly sleeved on the outer side of the outer threaded pipe 102 to form a detachable and tight connection. This connection ensures the stability between the infusion tube 4 and the main butt joint subassembly 1, effectively preventing liquid leakage during dialysis. To further enhance the sealing of the connection, a lower sealing ring 103 is fixedly sleeved on the outer side of the center of the outer threaded pipe 102, and an upper sealing ring 303 is fixedly connected to the lower end of the inner threaded pipe 301. When the inner threaded pipe 301 is tightly connected to the outer threaded pipe 102, the upper sealing ring 303 and the lower sealing ring 103 abut each other to form a sealing barrier. In addition, an annular support piece 302 is fixedly sleeved on the outer side of the center of the inner threaded pipe 301, which supports and stabilizes the upper sealing ring 303 to ensure that the sealing effect is more durable.

[0023] As an embodiment in the present embodiment, as shown in the figure, Figure 3As shown, the two clamping assemblies 2 each include a fixed tube 201, the two fixed tubes 201 are fixedly sleeved outside the two pipelines at the upper part of the three-way tube 101, the outer side of each of the two fixed tubes 201 is fixedly sleeved with a lower support ring 202, a plurality of arc-shaped elastic sheets 203 are fixedly and annularly arranged and connected at the upper end center of each of the two lower support rings 202, the upper end of each of the plurality of arc-shaped elastic sheets 203 is fixedly connected with two upper support rings 204, the two upper support rings 204 are slidably sleeved outside the two pipelines at the upper part of the three-way tube 101, the two sides of each of the two upper support rings 204 are fixedly connected with a pressing plate 205, and a lower clamping ring 206 is fixedly connected at the upper end center of each of the two upper support rings 204. The clamping assembly 2 is fixedly sleeved outside the two pipelines at the upper part of the three-way tube 101 through the fixed tube 201, when the replacement assembly 3 is connected with the main docking assembly 1, the upper support ring 204 will slide along the pipeline of the three-way tube 101 to a proper position, at this time, the plurality of arc-shaped elastic sheets 203 will exert an elastic effect, the lower clamping ring 206 and the upper clamping ring 304 are clamped through the upper support ring 204, forming an additional fixed barrier. This elastic clamping mode not only ensures the stability of the connection, but also facilitates quick disassembly and replacement of the replacement assembly 3 when needed.

[0024] As an embodiment in the present embodiment, as shown in Figure 4 and Figure 5 As shown, the replacement assembly 3 includes an internally threaded tube 301, the internally threaded tube 301 is threadedly sleeved outside the externally threaded tube 102, the internally threaded tube 301 and the externally threaded tube 102 are detachably connected, an annular support sheet 302 is fixedly sleeved at the lower center of the outer side of the internally threaded tube 301, an upper sealing ring 303 is fixedly connected to the lower end of the internally threaded tube 301, the upper sealing ring 303 and the lower sealing ring 103 abut each other, an upper clamping ring 304 is fixedly connected at the lower center of the edge of the annular support sheet 302, the upper clamping ring 304 and the lower clamping ring 206 are clamped with each other, two infusion tubes 4 are respectively fixedly sleeved inside the two internally threaded tubes 301 at the upper part, when the replacement assembly 3 is connected and fixed with the main docking assembly 1 through threads, the infusion tubes 4 are also stably fixed in the connection system, due to the close connection between the internally threaded tube 301 and the externally threaded tube 102 and the sealing effect between the upper sealing ring 303 and the lower sealing ring 103, the infusion tubes 4 can ensure smooth flow of dialysis liquid in the pipeline, while avoiding any possible leakage or falling off, this fixing mode not only improves the safety of dialysis treatment, but also ensures the continuity and effectiveness of the treatment.

[0025] Working principle: The three-way pipe 101 is the core of the main docking assembly 1, and the outer threaded pipe 102 is fixedly sleeved at both ends of the three-way pipe 101. When the inner threaded pipe 301 in the replacement assembly 3 needs to be connected with the infusion pipe 4, the inner threaded pipe 301 is threadedly sleeved outside the outer threaded pipe 102 to form a detachable and tight connection. This connection mode ensures the stability between the infusion pipe 4 and the main docking assembly 1, effectively prevents liquid leakage during dialysis, and further enhances the sealing of the connection. The lower end of the outer threaded pipe 102 is fixedly sleeved with a lower sealing ring 103, and the lower end of the inner threaded pipe 301 is fixedly connected with an upper sealing ring 303. When the inner threaded pipe 301 is tightly connected with the outer threaded pipe 102, the upper sealing ring 303 and the lower sealing ring 103 abut against each other to form a sealing barrier. Meanwhile, the lower end of the outer threaded pipe 102 is fixedly sleeved with an annular support piece 302, which supports and stabilizes the upper sealing ring 303 to ensure that the sealing effect is more durable. The clamping assembly 2 is fixedly sleeved outside the two pipes at the upper part of the three-way pipe 101 through the fixed pipe 201. When the replacement assembly 3 is connected with the main docking assembly 1, the upper support ring 204 slides to the appropriate position along the pipe of the three-way pipe 101. At this time, the plurality of arc-shaped elastic pieces 203 play an elastic role to clamp the lower clamping ring 206 and the upper clamping ring 304 through the upper support ring 204 to form an additional fixed barrier. This elastic clamping mode not only ensures the stability of the connection, but also facilitates quick disassembly and replacement of the replacement assembly 3 when needed. The infusion pipe 4 is fixedly sleeved inside the upper part of the two inner threaded pipes 301. When the replacement assembly 3 is connected with the main docking assembly 1 through the threaded connection and fixed, the infusion pipe 4 is also stably fixed in the connection system. Due to the tight connection between the inner threaded pipe 301 and the outer threaded pipe 102 and the sealing effect between the upper sealing ring 303 and the lower sealing ring 103, the infusion pipe 4 can ensure the smooth flow of dialysis liquid in the pipe, while avoiding any possible leakage or falling. This fixing mode not only improves the safety of dialysis treatment, but also ensures the continuity and effectiveness of the treatment.

[0026] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit them.

Claims

1. A rotatable fixed temporary dialysis catheter structure comprising a main docking assembly (1) and two infusion tubes (4), characterized in that: The upper end of the main docking assembly (1) is provided with two replacement assemblies (3) for docking two infusion tubes (4) with the main docking assembly (1), and the upper end of the main docking assembly (1) is provided with clamping assemblies (2) at both sides to prevent the replacement assemblies (3) from reversing.

2. A rotatable secureable temporary dialysis catheter structure according to claim 1, characterized in that: The main docking assembly (1) comprises a tee pipe (101), the inside of the tee pipe (101) is fixedly sleeved with an external thread pipe (102) at both upper ends, the outer side of the two external thread pipes (102) is fixedly sleeved with a lower sealing ring (103) at the lower center, and the inside of the tee pipe (101) is fixedly connected with a retention pipe (104) at the lower center.

3. A rotatable secureable temporary dialysis catheter structure according to claim 2, characterized in that: Both clamping assemblies (2) comprise a fixed pipe (201), the two fixed pipes (201) are fixedly sleeved on the outer side of the two pipelines at the upper end of the tee pipe (101), the outer side of the two fixed pipes (201) is fixedly sleeved with a lower support ring (202), and the upper end of the two lower support rings (202) is fixedly connected with a plurality of arc-shaped elastic sheets (203) at the edge of the center in a ring-shaped arrangement.

4. A rotatable secureable temporary dialysis catheter structure according to claim 3, characterized in that: The upper end of the plurality of arc-shaped elastic sheets (203) is fixedly connected with two upper support rings (204), the two upper support rings (204) are slidingly sleeved on the outer side of the two pipelines at the upper end of the tee pipe (101), the two sides of the two upper support rings (204) are fixedly connected with a pressing plate (205), and the upper end of the two upper support rings (204) is fixedly connected with a lower clamping ring (206) at the edge of the center.

5. A rotatable securement temporary dialysis catheter structure according to claim 4, wherein: The replacement assembly (3) comprises an internal thread pipe (301), the internal thread pipe (301) is threadedly sleeved on the outer side of the external thread pipe (102), the internal thread pipe (301) and the external thread pipe (102) are detachably connected, the outer side of the internal thread pipe (301) is fixedly sleeved with an annular support sheet (302) at the lower center, the lower end of the internal thread pipe (301) is fixedly connected with an upper sealing ring (303), the upper sealing ring (303) and the lower sealing ring (103) abut against each other, the lower end of the annular support sheet (302) is fixedly connected with an upper clamping ring (304) at the edge of the center, and the upper clamping ring (304) and the lower clamping ring (206) are clamped with each other.

6. A rotatable secureable temporary dialysis catheter structure according to claim 5, characterized in that: The two infusion tubes (4) are fixedly sleeved in the two internal thread pipes (301) at the upper end.

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