A three-lumen urinary catheter

Abstract

The utility model relates to the technical field of urinary catheters, and discloses a three-chamber urinary catheter, including a main body and a urinary catheter channel, a flushing tube and a blocking capsule tube connected to the main body. One end of the main body is provided with an insertion end and a blocking capsule arranged near the insertion end, the blocking capsule tube is connected with the blocking capsule, the flushing tube is plugged with a sealing plug assembly at the open end away from the main body, a gap is provided on the sealing plug assembly, the gap is in a sealed state under normal conditions and does not affect the plug of the infusion set or syringe passing through the gap to connect with the flushing tube, the flushing tube is sleeved with an extrusion ring on the outside, and the gap is tightly sealed under the extrusion of the extrusion ring. The utility model can effectively ensure the sealing performance of the flushing tube port, and can be used in conjunction with different infusion sets or syringes and injection end connectors, effectively avoiding the phenomenon of drug leakage and urine leakage at the flushing tube port due to mismatched equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of urinary catheters, in particular to a three-lumen urinary catheter. Background Art

[0002] A urinary catheter is a tube made of natural rubber, silicone rubber or polyvinyl chloride (PVC) that is inserted into the bladder to drain urine. The catheter is inserted into the bladder through the urethra. After the catheter is inserted into the bladder, an air bag is placed near the tip of the catheter to fix the catheter in the bladder to prevent it from falling out. At this time, the drainage tube is connected to a urine bag to collect urine.

[0003] The method of sealing the flushing tube port after continuous bladder irrigation with existing three-lumen catheters is not standardized, and urine leakage and contamination often occur. In addition, when performing bladder administration, the infusion set or syringe is not compatible with the injection end connector, resulting in drug leakage and urine leakage. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a three-lumen urinary catheter, which solves the problem that the sealing performance of the flushing tube port on the existing three-lumen urinary catheter needs to be improved and the flushing tube port sealing head is inconvenient to be used with different types of infusion sets or syringes.

[0006] (II) Technical solution

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A three-lumen urinary catheter comprises a main body, a urinary catheterization channel, a flushing tube and a blocking bag tube connected to the main body, one end of the main body is provided with an insertion end and a blocking bag arranged near the insertion end, the blocking bag tube is connected with the blocking bag, the flushing tube is plugged with a sealing plug assembly through an interference fit at the open end away from the main body, a gap is provided on the sealing plug assembly, the gap is in a sealed state under normal conditions and does not affect the plug of an infusion set or a syringe passing through the gap to connect with the flushing tube, an extrusion ring is sleeved on the outside of the flushing tube, and the gap is tightly fitted and sealed under the extrusion action of the extrusion ring.

[0009] Preferably, the main pipe body is provided with a secretion drainage portion, the secretion drainage portion comprises two drainage grooves arranged on the main pipe body in a cross spiral winding manner, the main pipe body is provided with a liquid outlet hole connected to the drainage groove, the end of the urinary catheterization channel away from the drainage groove is provided with a liquid guide hole, the liquid guide hole is connected to the lower end of the drainage groove, and the flushing tube is connected to the liquid outlet hole.

[0010] Preferably, the sealing plug assembly includes an intermediate column and sealing blocks arranged at both ends of the intermediate column, the sealing blocks are interference fit with the open ends of the flushing pipe, the gap runs through the middle of the sealing block and the intermediate column, and under normal conditions, the cavity walls of the gap fit together so that the gap is in a closed state.

[0011] Preferably, a lifting ring is integrally formed on the end surface of the sealing block.

[0012] Preferably, the outer surface of the middle column is evenly arranged with matching protrusions, and the inner surface of the extrusion ring is evenly distributed with extrusion protrusions in an annular shape. When the extrusion ring is sleeved on the flushing pipe, the extrusion protrusions squeeze the flushing pipe and the matching protrusions.

[0013] (III) Beneficial effects

[0014] The utility model has the following beneficial effects:

[0015] The three-lumen urinary catheter can facilitate personnel to use different types of infusion sets or syringes to pass through the sealing plug assembly to inject the flushing liquid into the flushing tube through the slits provided on the sealing plug assembly. Moreover, after the plug is pulled out, the slit automatically closes to complete the re-sealing of the flushing tube; the flushing tube can be squeezed by the provided squeezing ring, so that the flushing tube squeezes the sealing plug assembly, thereby making the slit fit tightly, avoiding the sealing performance of the slit being reduced after multiple uses, thereby causing leakage at the open end of the flushing tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the layout structure of the extrusion ring of the utility model;

[0018] Figure 3 This is a schematic diagram of the layout structure of the extrusion ring and the intermediate column of the utility model;

[0019] Figure 4 It is a schematic diagram of the overall structure of the sealing plug assembly of the utility model.

[0020] In the figure: 1. main body; 2. urinary catheterization channel; 3. positioning bag; 4. insertion end; 5. positioning bag tube; 6. flushing tube; 7. secretion drainage part; 71. liquid outlet; 72. drainage groove; 73. liquid guide hole; 8. sealing plug assembly; 81. middle column; 82. sealing block; 83. gap; 84. lifting ring; 85. matching protrusion; 9. squeezing ring; 91. squeezing protrusion. DETAILED DESCRIPTION

[0021] 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 in 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.

[0022] See also Figure 1 The utility model provides a technical solution: a three-lumen urinary catheter, comprising a main body 1 and a urinary catheter channel 2, a flushing tube 6 and a blocking bag tube 5 connected to the main body 1. One end of the main body 1 is provided with an insertion end 4 and a blocking bag 3 arranged near the insertion end 4. The blocking bag tube 5 is connected to the blocking bag 3. The opening end of the flushing tube 6 away from the main body 1 is plugged with a sealing plug assembly 8. A gap 83 is provided on the sealing plug assembly 8. The gap 83 is in a sealed state under normal conditions and does not affect the plug of an infusion set or a syringe passing through the gap 83 to connect with the flushing tube 6. An extrusion ring 9 is sleeved on the outside of the flushing tube 6. The gap 83 is tightly sealed under the extrusion action of the extrusion ring 9.

[0023] The utility model provides a slit 83 on the sealing plug assembly 8, so that people can use different types of infusion sets or syringes to pass through the sealing plug assembly 8 to inject the flushing liquid into the flushing tube 6. Moreover, after the plug is pulled out, the slit 83 automatically closes to seal the flushing tube 6 again; the flushing tube 6 can be squeezed by the squeezing ring 9, so that the flushing tube 6 squeezes the sealing plug assembly 8, and then the slit 83 can fit tightly, avoiding the sealing performance of the slit 83 from decreasing after multiple uses, thereby causing leakage at the open end of the flushing tube 6.

[0024] Reference Figure 1 As shown, in this embodiment, the main body 1 is provided with a secretion drainage portion 7, which includes two drainage grooves 72 arranged on the main body 1 in a cross spiral winding manner, and the main body 1 is provided with a liquid outlet 71 connected with the drainage groove 72, and a liquid guide hole 73 is arranged at one end of the urinary catheter channel 2 away from the drainage groove 72, and the liquid guide hole 73 is connected with the lower end of the drainage groove 72, and the flushing tube 6 is connected with the liquid outlet 71. When the main body 1 is inserted into the patient's urethra, a part of the flushing liquid in the flushing tube 6 flows into the urethra through the liquid outlet 71 on the main body 1, dilutes the secretion, and flows along the spirally arranged drainage groove 72, thereby flushing the secretion of the patient's urethral wall, and enters the liquid guide port urinary catheter channel 2 along the drainage groove 72 and is discharged into a urine bag or a liquid collection bag, thereby preventing the urethral secretion from being retained in the urethra and causing urinary tract infection.

[0025] Reference Figure 4As shown, in this embodiment, the sealing plug assembly 8 includes an intermediate column 81 and sealing blocks 82 arranged at both ends of the intermediate column 81. The sealing blocks 82 are both plugged with the open end of the flushing pipe 6 by interference. The gap 83 runs through the middle of the sealing block 82 and the intermediate column 81. Under normal conditions, the cavity walls of the gap 83 fit each other so that the gap 83 is in a closed state. The sealing blocks 82 arranged at both ends of the intermediate column 81 can effectively ensure the sealing performance of the sealing block 82 for the flushing pipe 6 because the two sealing blocks 82 and the flushing pipe 6 are both plugged with interference, and the gap 83 runs through the intermediate column 81 and the sealing block 82, so that it is convenient to plug and connect the flushing pipe 6 through the gap 83 in the subsequent process. In actual application, the sealing block 82 and the intermediate column 81 can be made of rubber or sealing silicone, which can be closed after cutting to ensure the sealing of the gap 83.

[0026] Reference Figure 4 As shown, in this embodiment, the end surface of the sealing block 82 is integrally formed with a lifting ring 84. When the sealing plug assembly 8 needs to be pulled out for daily cleaning and sterilization, the sealing plug assembly 8 in the flushing tube 6 can be pulled out as a whole through the lifting ring 84.

[0027] Reference Figure 3 As shown, in this embodiment, the outer surface of the middle column 81 is evenly arranged with matching protrusions 85, and the inner surface of the extrusion ring 9 is evenly distributed with extrusion protrusions 91 in an annular manner. When the extrusion ring 9 is sleeved on the flushing pipe 6, the extrusion protrusions 91 squeeze the flushing pipe 6 and the matching protrusions 85. Under normal conditions, the flushing pipe 6 and the matching protrusions 85 are squeezed by the extrusion protrusions 91, so that the middle column 81 is compressed and the gaps 83 on the middle column 81 are tightly fitted, effectively improving the sealing performance of the entire sealing plug assembly 8 for the open end of the flushing pipe 6 under normal conditions.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A three-lumen urinary catheter, comprising a main body, a urinary catheter channel, a flushing tube and a blocking bag tube connected to the main body, wherein one end of the main body is provided with an insertion end and a blocking bag arranged near the insertion end, and the blocking bag tube is connected to the blocking bag, characterized in that: A sealing plug assembly is inserted into the open end of the flushing tube away from the main body through interference fit, and a gap is provided on the sealing plug assembly. The gap is in a sealed state under normal circumstances and does not affect the plug of the infusion set or syringe passing through the gap to connect with the flushing tube. An extrusion ring is sleeved on the outside of the flushing tube, and the gap is tightly fitted and sealed under the extrusion action of the extrusion ring.

2. A three-lumen urinary catheter according to claim 1, characterized in that: The main pipe body is provided with a secretion drainage portion, which includes two drainage grooves arranged on the main pipe body in a cross-spiral manner. The main pipe body is provided with a liquid outlet hole connected with the drainage groove. The end of the urinary catheter channel away from the drainage groove is provided with a liquid guide hole, which is connected with the lower end of the drainage groove, and the flushing tube is connected with the liquid outlet hole.

3. A three-lumen urinary catheter according to claim 1 or 2, characterized in that: The sealing plug assembly includes an intermediate column and sealing blocks arranged at both ends of the intermediate column. The sealing blocks are interference-fitted with the open ends of the flushing pipe. The gap runs through the middle of the sealing block and the intermediate column. Under normal conditions, the cavity walls of the gap fit together so that the gap is in a closed state.

4. A three-lumen urinary catheter according to claim 3, characterized in that: The end surface of the sealing block is integrally formed with a lifting ring.

5. A three-lumen urinary catheter according to claim 4, characterized in that: The outer surface of the middle column is evenly arranged with matching protrusions, and the inner surface of the extrusion ring is evenly distributed with extrusion protrusions in an annular shape. When the extrusion ring is sleeved on the flushing pipe, the extrusion protrusions squeeze the flushing pipe and the matching protrusions.

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