CN203507296U - Urethral catheter - Google Patents

Abstract

The urinary catheter of the present utility model comprises a head, a tail, a drug injection tube, a water injection tube, and a water bag. The head is provided with a urination port and a drug outlet, and the tail is provided with a drug injection port, a urine outlet, and a water injection port. , is characterized in that: the urination channel connected with the urination opening and the urination outlet is formed between the medicine injection tube and the water injection tube and the urethra wall of the human body, and the end near the tail is provided with a urine collection end, and the urine collection end is fixed by a telescopic hose On the tail, the water injection port communicates with the inner cavity of the water bag through the water injection pipe. The urinary catheter of the utility model not only realizes the flushing effect of the patient on the urethra during urination, avoids the occurrence of inflammation caused by the retrograde infection of the external opening of the urethra by pathogenic microorganisms, and prolongs the use time of the catheter, but also The cross-sectional area of the urinary catheter is also greatly reduced, the urethra is less stimulated, and the discomfort of the patient is alleviated. The urinary catheter of the utility model has the advantages of novel structure, remarkable beneficial effect and convenient application and popularization.

Description

a urinary catheter

technical field

The utility model relates to a urinary catheter, in particular to a urinary catheter which can flush the urethra with urine discharged from a patient. the

Background technique

Urinary catheter is a pipeline made of natural rubber, silicone rubber or polyvinyl chloride (PVC). It can be inserted into the bladder through the urethra to drain urine. After the catheter is inserted into the bladder, there is a tube near the head of the catheter. The air bag (also called water bag) fixes the catheter in the bladder and should not come out, and the drainage tube is connected to the urine bag to collect urine. The traditional urinary catheter is basically to set a drug injection tube and a water injection tube in a rubber tube with a larger diameter, and the cavity in the rubber tube is used as a passage for urine to flow out. the

There are two major disadvantages in the traditional urinary catheter: (1) When using the traditional urinary catheter for urinary catheterization, the urine is directly discharged from the bladder through the inner cavity of the catheter, which lacks the flushing effect of the urine on the urethra, and pathogenic microorganisms are easy to pass through. Retrograde infection of the external opening of the urethra can easily cause inflammation of the urethra, bladder and other tissues. In order to avoid the occurrence of inflammation, the urinary catheter needs to be changed frequently, usually at least once every two weeks. (2) When using a traditional urinary catheter, the tube occupies most of the volume of the urethra, which will stimulate the urethra and cause the patient to continue to urinate; at this time, the bladder is emptied by the catheter, and it is not that the urine reaches a certain amount to bring the human body. The desire to urinate increases the pain of the patient. the

Contents of the invention

In order to overcome the disadvantages of the above-mentioned technical problems, the utility model provides a urinary catheter which can flush the urethra with the urine discharged by the patient. the

The urinary catheter of the utility model comprises a head for extending into the human bladder and a tail placed outside, the head is provided with a urination port and a medicine outlet, and the rear end of the head is provided with a fixing device. A water bag, the tail is provided with a drug injection port, a urine outlet and a water injection port, the drug injection port is connected to the drug outlet through the drug injection tube, and the water injection port is connected to the inner cavity of the water bag through the water injection tube; Its special feature is that: the urination channel connected with the urination opening and the urination outlet is formed between the drug injection tube and the water injection tube and the urethral wall of the human body, and the end near the tail is provided with a urine collection tube for insertion into the outer opening of the urethra. The urine collection end is fixed on the tail through the telescopic hose; the interior of the urine collection end and the telescopic hose is a cavity connecting the urination channel and the urine outlet. the

The head is used to extend into the bladder of the human body, and the urination port is used to discharge the urine in the bladder. The medicine or flushing liquid injected from the injection port enters the bladder from the drug outlet after passing through the drug injection tube. Water can be injected into the water bag through the water injection port and the water injection pipe, and the expanded water bag keeps the head inside the bladder. The urinary passage is formed between the water injection tube, the drug injection tube and the urethral wall, and the flexible hose will force the urine collection end to be inserted into the outer opening of the urethra to prevent urine from flowing out from the outside. The urinary catheter with this structure can not only flush the urethra during urination, but also greatly reduce the space occupied by the entire urinary catheter in the urethra because only the water injection tube and the drug injection tube are left in the urethra. Small, reducing the pain of the patient. the

The urinary catheter of the utility model comprises a nylon guide wire placed in the drug injection tube when the catheter is inserted. Since the catheter composed of the drug injection tube and the water injection tube is relatively soft, it is not easy to insert through the urethra. With the support of the nylon guide wire, the smooth insertion of the catheter can be ensured. the

In the urinary catheter of the present utility model, the rear end of the water bag is a supporting part supporting the internal opening of the urethra, and the supporting part is a cavity connecting the urination opening and the urination channel. Only by opening the inner opening of the urethra can the smooth flow of urine be guaranteed. the

In the urinary catheter of the present utility model, an umbrella-shaped portion is arranged on the periphery of the urine collection end to prevent urine from seeping out, and the opening of the umbrella-shaped portion faces the side of the urine collection end; the inner surface of the umbrella-shaped portion is provided with There are strip folds or ring folds. Under the support of the telescopic hose, the opening of the umbrella-shaped part can be forced to press against the peripheral tissue of the urethral opening, so that the sealing performance of the urine collection end is better. the

In the urinary catheter of the utility model, the drug injection pipe and the water injection pipe are connected through a plurality of connecting blocks distributed at intervals. After the drug injection tube and the water injection tube are connected by a connecting block, not only a cavity for urine outflow is formed between the drug injection tube and the water injection tube, but also a supporting effect on the urethra can be realized to form a cavity for urine outflow. cavity. the

In the urinary catheter of the present utility model, the connecting block is one or two arc-shaped connecting blocks. the

The beneficial effects of the utility model are: the urinary catheter of the utility model only retains the drug injection tube and the water injection tube in the middle part, and abandons the use of the existing large-diameter catheter, and the drug injection tube, the water injection tube and the urethral wall As a urination channel, it not only realizes the scouring effect on the urethra of the patient during urination, avoids the occurrence of inflammation caused by retrograde infection of the external urethral orifice by pathogenic microorganisms, prolongs the use time of the catheter, but also enables The cross-sectional area of the urinary catheter is greatly reduced, the urethra is less stimulated, and the patient's discomfort is relieved. The urinary catheter of the utility model has the advantages of novel structure, remarkable beneficial effect and convenient application and popularization. the

Description of drawings

Fig. 1 is the structural representation of catheter of the present utility model;

Fig. 2 is the structural representation when the urinary catheter of the present utility model is in use;

Fig. 3 is the first cross-sectional view of the A-A section in Fig. 1;

Fig. 4 is the second cross-sectional view of A-A section in Fig. 1;

Figure 5 and Figure 6 show two different connection modes of the drug injection pipe and the water injection pipe.

In the figure: 1 head, 2 tail, 3 drug injection port, 4 urine outlet, 5 water injection port, 6 drug injection tube, 7 water injection tube, 8 water bag, 9 urination port, 10 drug outlet, 11 urine collection end, 12 umbrella-shaped part, 13 telescopic hose, 14 nylon guide wire, 15 support part, 16 connection block, 17 inner bladder, 18 urethral wall, 19 strip fold, 20 ring fold, 21 arc connection block, 22 Urinary passage. the

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described. the

As shown in Fig. 1 and Fig. 2, respectively provide the structural representation of the urinary catheter of the present utility model and the schematic diagram during use, the urinary catheter of the present utility model comprises head 1, afterbody 2, injection tube 6, injection Water pipe 7, water bag 8, urine collection end 11, telescopic hose 13, nylon guide wire 14; The head 1 shown is used to extend in the inner 17 of human bladder, and the head 1 has an urination port 9 and an outlet The medicine port 10 and the urination port 9 can be multiple, and the urination port 9 is used to discharge the urine in the bladder, and medicine or flushing liquid can be injected into the bladder through the drug outlet 10 . The water bag 8 is arranged at the rear end of the head 1, and after the water bag 8 is inflated, it functions to limit the head 1 inside the bladder. the

The shown tail part 2 is provided with a medicine injection port 3, a urine outlet 4 and a water injection port 5, and the medicine injection port 3 is communicated with the medicine outlet 10 through the medicine injection tube 6, so as to inject medicine into the bladder through the medicine injection port or Flush. The water injection port 5 communicates with the inner cavity of the water bag 8 through the water injection pipe 7, so that the water bag 8 is filled with water through the water injection port 5. After the urinary catheter is inserted into the urethra, the urination channel 22 is formed between the drug injection tube 6, the water injection tube 7 and the urethral wall 18. This form still uses the cavity of the urethra itself to urinate, which is different from the traditional urinary catheter. There are different patterns of voiding in the internal cavity. the

The urine collection end 11 and the telescopic hose 13 are arranged at one end close to the tail part 2, the urine collection end 11 is fixed on the tail part 2 through the telescopic hose 13, and the inside of the urine collection end 11 and the telescopic hose 13 are connected to the urination channel 22 The cavity with the urine outlet 4. The urine collecting end 11 is used to be inserted into the external opening of the urethra, and is used to ensure that the urine flows out through the urine outlet 4 instead of flowing out from the outside. After the telescopic hose 13 is compressed to a certain extent, it can generate a force that forces the urine collection tube 11 to be inserted into the entrance of the urethra, so that the urine collection tube 11 can better collect urine. In order to ensure that the urinary catheter can be smoothly inserted into the human urethra, a nylon guide wire 14 is also provided. During the insertion of the urinary catheter, the nylon guide wire 14 is inserted into the drug injection tube 4 from the injection port 3 to realize the control of the entire urinary catheter. The supporting role of the catheter can be inserted smoothly. the

In order to ensure that the urine in the bladder interior 17 can be discharged smoothly, a support portion 15 is provided at the rear of the water bag 8. The support portion 15 is used to support the internal opening of the urethra. The interior of the support portion 15 is connected to the urination port 9. Cavity with 22 urination passages. The periphery of the urine collection end 11 is also provided with an umbrella-shaped portion 12, the opening of the umbrella-shaped portion 12 faces the side of the urine collection end 11, and is used to fit closely with the tissue at the outer opening of the urethra to further prevent urine from flowing out from the outside . As shown in Fig. 3 and Fig. 4, the cross-sectional view of the A-A section in Fig. 1 is provided, as can be seen from the figure, the inner surface of the umbrella-shaped part 12 can be provided with strip folds 19 as shown in Fig. 3, and also It can be set as an annular fold 20 as shown in FIG. 4 , which can further realize the sealing effect at the urethral opening. the

The drug injection pipe 6 and the water injection pipe 7 shown in FIG. 1 can be connected by connecting blocks 16, and the connecting blocks 16 are arranged at intervals. After the medicine injection pipe 6 and the water injection pipe 7 are connected by the connecting block 16, not only the urine has a certain supporting effect, but also the space of the urination channel 22 is increased, which is beneficial to urination, and the gap between the medicine injection pipe 6 and the water injection pipe 7 It is also available for urine to pass through. As shown in Figure 5 and Figure 6, two different connection methods for the injection pipe and the water injection pipe are given, and the connection block 16 on the medicine injection pipe 6 and the water injection pipe 7 can adopt an arc-shaped connection block 21 as shown in Figure 5 , two arc-shaped connection blocks 21 shown in FIG. 6 can also be used. the

The urinary catheter of the utility model not only realizes the flushing effect of the patient on the urethra during urination, avoids the occurrence of inflammation caused by the retrograde infection of the external opening of the urethra by pathogenic microorganisms, and prolongs the use time of the catheter, but also The cross-sectional area of the urinary catheter is also greatly reduced, the urethra is less stimulated, and the discomfort of the patient is alleviated. the

Claims (6)

1. A urinary catheter, comprising a head for extending into the human bladder (17) and a tail (2) placed outside, the head is provided with a urination port (9) and a medicine outlet (10 ), the rear end of the head is provided with a fixed water bag (8), and the tail is provided with a drug injection port (3), a urine outlet (4) and a water injection port (5). The drug tube (6) is connected to the drug outlet, and the water injection port is connected to the inner cavity of the water bag through the water injection tube (7); the feature is that: the drug injection tube and the water injection tube are connected to the urethral wall (18) of the human body A urination channel (22) communicating with the urination opening and the urination outlet is formed between them, and the end near the tail is provided with a urine collection end (11) for insertion into the outer opening of the urethra, and the urine collection end is passed through a telescopic hose (13) It is fixed on the tail; the inside of the urine collection end and the telescopic hose is a cavity connecting the urination channel and the urine outlet. 2. The urinary catheter according to claim 1, characterized in that it comprises a nylon guide wire (14) placed in the drug injection tube (6) when the catheter is inserted. 3. The urinary catheter according to claim 1 or 2, characterized in that: the rear end of the water bag (8) is a support part (15) supporting the internal opening of the urethra, and the support part is connected to the urination opening (9) Cavity with urination channel (22). 4. The urinary catheter according to claim 1 or 2, characterized in that: the periphery of the urine collection end (11) is provided with an umbrella-shaped part (12) to prevent urine from seeping out, and the opening of the umbrella-shaped part Towards the side of the urine collection end; the inner surface of the umbrella-shaped part is provided with strip folds (19) or ring folds (20). 5. The urinary catheter according to claim 1 or 2, characterized in that: the drug injection tube (6) is connected to the water injection tube (7) through a plurality of connecting blocks (16) distributed at intervals. 6. The urinary catheter according to claim 5, characterized in that: the connecting block (16) is one or two arc-shaped connecting blocks (21).

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