Anti-infection catheter capable of being used for reserved urine culture

Abstract

The utility model discloses an anti-infection urethral catheter for collecting urine culture, which comprises a urethral catheter, a positive pressure joint, a sampling mechanism and a protection mechanism, the sampling mechanism is used for collecting urine in the urethral catheter, and the protection mechanism is used for one-way circulation of the sampling mechanism. According to the utility model, the water inlet of the sampling needle cylinder is inserted into the inner cavity of the rubber joint in a sliding manner, and the movable tube is downwards extruded, so that the through holes enter the inner cavity of the fixed seat in a sliding manner, the limiting block is driven to compress the pressure spring, urine flows into the inner cavity of the movable tube from the through holes, and the urine is sucked from the inner cavity of the catheter by utilizing the needle cylinder; when the rubber joint and the sampling needle cylinder are separated, a limiting block and a movable pipe are pushed upwards under the elastic action of a pressure spring, so that a through hole enters an inner cavity of the rubber joint, and the limiting block seals the bottom end of the rubber joint, so that urine leakage is prevented, and infection is prevented.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to an infection-proof urinary catheter that can be used for urine culture. Background Technology

[0002] In the clinical medical field, for patients with fecal incontinence, a urinary catheter is usually used to drain and collect the patient's urine. The urine enters a urine collection bag through the catheter, making it convenient for urine testing and observation.

[0003] When using a common urinary catheter to collect urine samples for testing, it is usually necessary to separate the catheter from the urine collection bag, collect the urine flowing out of the catheter, and then reconnect the catheter and the urine collection bag. This makes urine sampling difficult, and after the catheter is separated from the urine collection bag, urine backflow can easily occur, which can cause infection in the patient. Utility Model Content

[0004] The purpose of this invention is to provide an infection-resistant urinary catheter that can be used for urine culture, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an infection-resistant urinary catheter that can be used for urine culture, comprising a urinary catheter;

[0006] A positive pressure connector, which is fixedly connected to one end of the urinary catheter;

[0007] It also includes a sampling mechanism, which is disposed at one end of the catheter and is used to collect a sample of the urine in the catheter.

[0008] A protective mechanism is provided on the sampling mechanism, and the protective mechanism is used for one-way flow of the sampling mechanism.

[0009] Preferably, the sampling mechanism includes:

[0010] A fixing seat is fixedly connected to the outer wall of one end of the urinary catheter.

[0011] A rubber connector, one end of which is fixedly connected to the upper surface of the fixed base, is used to install and connect a sampling syringe.

[0012] Preferably, the sampling mechanism further includes:

[0013] A connecting tube, the bottom end of which is fixedly connected to the lower surface of the fixing base, and the connecting tube is fixedly inserted and connected to the top of the urinary catheter;

[0014] The inlet is located in the middle of the other end of the catheter and is used for urine to enter the inner lumen of the catheter.

[0015] Preferably, the protective mechanism includes:

[0016] The movable tube is slidably inserted into the inner cavity of the fixed seat and the rubber joint;

[0017] Through holes are provided at the bottom of the movable tube and are arranged in a ring array at equal intervals.

[0018] Preferably, the protective mechanism includes:

[0019] A limiting block, the upper surface of which is fixedly connected to the bottom end of the movable tube, and the limiting block is slidably inserted into the inner cavity of the fixed seat;

[0020] A sealing ring is fixedly connected to the upper surface of the limiting block, and the sealing ring is arranged in a circular shape.

[0021] A compression spring is disposed in the inner cavity of the fixed base, and the top end of the compression spring is in contact with the lower surface of the limiting block.

[0022] Preferably, a balloon is fixedly connected to the other end of the catheter, a water-stopping clip is slidably inserted into one end of the catheter, an injection chamber is fixedly connected to the top of one end of the catheter, and the rubber connector is made of elastic material.

[0023] The technical effects and advantages of this utility model are as follows:

[0024] This invention utilizes a combination of a rubber connector, a fixed base, a movable tube, a through hole, a limiting block, and a compression spring. By sliding the inlet of the sampling syringe into the inner cavity of the rubber connector, the rubber connector is deformed and the movable tube is compressed downwards, causing the through hole to slide into the inner cavity of the fixed base. This causes the limiting block to compress the compression spring, allowing urine to flow through multiple through holes into the inner cavity of the movable tube. The syringe is then used to draw urine from the inner cavity of the catheter, facilitating urine sampling. Furthermore, when separating the rubber connector and the sampling syringe, the elasticity of the compression spring pushes the limiting block and the movable tube upwards, allowing the through hole to enter the inner cavity of the rubber connector. The limiting block seals the bottom of the rubber connector, preventing urine leakage and infection. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0026] Figure 2 This is a side sectional view of the rubber joint of this utility model.

[0027] Figure 3This is a side cross-sectional view of the movable tube of this utility model.

[0028] In the diagram: 1. Urinary catheter; 2. Positive pressure connector; 3. Sampling mechanism; 31. Fixing base; 32. Rubber connector; 33. Connecting tube; 34. Inlet; 4. Protective mechanism; 41. Movable tube; 42. Through hole; 43. Limiting block; 44. Compression spring; 5. Balloon; 6. Water stop clamp; 7. Injection balloon cavity. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] This utility model provides, for example Figure 1-3 The diagram shows an infection-resistant urinary catheter for urine culture collection, comprising a catheter 1, a positive pressure connector 2, a sampling mechanism 3, and a protective mechanism 4. The catheter 1 is used to discharge and collect urine from the patient. The positive pressure connector 2 is fixedly connected to one end of the catheter 1, connecting a urine bag and the catheter 1 to allow urine to flow into the inner cavity of the urine bag. The sampling mechanism 3 is located at one end of the catheter 1 and is used to collect urine samples from the inner cavity of the catheter 1 for urinary culture testing. The protective mechanism 4 is located on the sampling mechanism 3 and is used for unidirectional flow of the sampling mechanism 3. The protective mechanism 4 protects the catheter 1, preventing backflow of urine during sampling and thus preventing infection caused by backflow.

[0031] The sampling mechanism 3 includes a fixed base 31, a rubber connector 32, a connecting tube 33, and an inlet 34. The fixed base 31 is fixedly connected to the outer wall of one end of the catheter 1. The fixed base 31 is frustoconical and is used to install the rubber connector 32 and the connecting tube 33. One end of the rubber connector 32 is fixedly connected to the upper surface of the fixed base 31. The rubber connector 32 is used to install and connect a sampling syringe. By sliding the inlet of the sampling syringe into the inner cavity of the rubber connector 32, the rubber connector 32 is compressed and deformed, and urine is drawn from the inner cavity of the catheter 1 using the syringe. The bottom end of the connecting tube 33 is fixedly connected to the lower surface of the fixed base 31, and the connecting tube 33 is fixedly inserted into the top of the catheter 1. One end of tube 33 is inserted into the lumen of catheter 1 to facilitate the drainage of urine from the lumen of catheter 1. Inlet 34 is located in the middle of the other end of catheter 1. Inlet 34 is used for urine to enter the lumen of catheter 1. Inlet 34 is inserted into the patient's body along with the other end of catheter 1, so that urine enters catheter 1 through inlet 34 and flows along catheter 1. The urine flows in the lumen of catheter 1 and passes through the connecting tube 33. By sliding the inlet of the sampling syringe into the lumen of rubber connector 32, the rubber connector 32 is squeezed and deformed. Urine is drawn from the lumen of catheter 1 using the syringe, which facilitates urine sampling.

[0032] The protective mechanism 4 includes a movable tube 41, a through hole 42, a limiting block 43, a sealing ring, and a compression spring 44. The movable tube 41 is slidably inserted into the inner cavity of the fixed seat 31 and the rubber joint 32. The movable tube 41 moves within the inner cavity of the fixed seat 31 and the rubber joint 32 to allow urine to flow out and to seal the inner cavity of the rubber joint 32. When the inlet of the sampling syringe slides into the inner cavity of the rubber joint 32, it presses the movable tube 41 downward. The through holes 42 are located at the bottom of the movable tube 41 and are arranged in a ring array at equal intervals. Urine flows into the movable tube 41 through multiple through holes 42. As the movable tube 41 is pressed downwards, the through hole 42 slides into the inner cavity of the fixed seat 31, facilitating the flow of urine through the through hole 42. The upper surface of the limiting block 43 is fixedly connected to the bottom end of the movable tube 41, and the limiting block 43 is slidably inserted into the inner cavity of the fixed seat 31. The limiting block 43 moves together with the movable tube 41 to seal and limit the bottom end of the movable tube 41, preventing the movable tube 41 from separating from the rubber joint 32, and compressing and deforming the compression spring 44. The sealing ring is fixedly connected to the upper surface of the limiting block 43. The sealing ring is circular and can be adjusted. With a certain deformation, the outer wall of the sealing ring fits against the inner wall of the fixed seat 31, ensuring the sealing at the limiting block 43. The compression spring 44 is set in the inner cavity of the fixed seat 31, and the top of the compression spring 44 fits against the lower surface of the limiting block 43. Utilizing the elasticity of the compression spring 44, the limiting block 43 and the movable tube 41 are pushed upward, allowing the through hole 42 to enter the inner cavity of the rubber joint 32. The limiting block 43 seals the bottom end of the rubber joint 32 to prevent urine leakage. By sliding the inlet of the sampling syringe into the inner cavity of the rubber joint 32, the rubber joint 32 is compressed and deformed, and the movable tube 41 is also compressed and deformed. When tube 41 is pressed downwards, the through hole 42 slides into the inner cavity of the fixed seat 31, causing the limiting block 43 to compress the spring 44. Urine flows into the inner cavity of the movable tube 41 through multiple through holes 42. Urine is then drawn from the inner cavity of the catheter 1 using a syringe, facilitating urine sampling. When separating the rubber connector 32 and the sampling syringe, the elasticity of the spring 44 pushes the limiting block 43 and the movable tube 41 upwards, allowing the through hole 42 to enter the inner cavity of the rubber connector 32. The limiting block 43 seals the bottom end of the rubber connector 32 to prevent urine leakage and infection.

[0033] The other end of the urinary catheter 1 is fixedly connected to a balloon 5. The balloon 5 is inserted into the body along with the other end of the urinary catheter 1 to limit one end of the urinary catheter 1. One end of the urinary catheter 1 is slidably connected to a water-stopping clip 6. By adjusting the water-stopping clip 6, one end of the urinary catheter 1 is squeezed to close the urinary catheter 1. The top of one end of the urinary catheter 1 is fixedly connected to an inflatable balloon cavity 7. Water is injected into the inner lumen of the urinary catheter 1 through the inflatable balloon cavity 7. The rubber connector 32 is made of elastic material.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An infection-resistant urinary catheter for collecting urine for culture, comprising: Urinary catheter (1); Positive pressure connector (2), which is fixedly connected to one end of the catheter (1); The feature is that it further includes a sampling mechanism (3), which is disposed at one end of the catheter (1) and is used to retain a sample of urine in the catheter (1); A protective mechanism (4) is provided on the sampling mechanism (3) and is used for one-way flow of the sampling mechanism (3).

2. The infection-resistant urinary catheter for urine culture as described in claim 1, characterized in that, The sampling mechanism (3) includes: Fixing seat (31), the fixing seat (31) is fixedly connected to the outer wall of one end of the catheter (1); A rubber connector (32) is provided, one end of which is fixedly connected to the upper surface of a fixed base (31). The rubber connector (32) is used to install and connect a sampling syringe.

3. The infection-resistant urinary catheter for urine culture according to claim 2, characterized in that, The sampling mechanism (3) also includes: A connecting tube (33) is fixedly connected at its bottom end to the lower surface of a fixing seat (31), and the connecting tube (33) is fixedly inserted into the top of a urinary catheter (1). The inlet (34) is located in the middle of the other end of the catheter (1) and is used for urine to enter the inner lumen of the catheter (1).

4. The infection-resistant urinary catheter for urine culture as described in claim 3, characterized in that, The protective mechanism (4) includes: The movable tube (41) is slidably inserted into the inner cavity of the fixed seat (31) and the rubber joint (32); Through holes (42) are provided at the bottom of the movable tube (41), and the through holes (42) are arranged in a ring array at equal intervals.

5. The infection-resistant urinary catheter for urine culture as described in claim 4, characterized in that, The protective mechanism (4) includes: Limiting block (43), the upper surface of the limiting block (43) is fixedly connected to the bottom end of the movable tube (41), and the limiting block (43) is slidably inserted into the inner cavity of the fixed seat (31); A sealing ring is fixedly connected to the upper surface of the limiting block (43), and the sealing ring is arranged in a circular shape; Compression spring (44) is disposed in the inner cavity of the fixed base (31), and the top end of the compression spring (44) is in contact with the lower surface of the limiting block (43).

6. The infection-resistant urinary catheter for urine culture according to claim 5, characterized in that, The other end of the catheter (1) is fixedly connected to a balloon (5), one end of the catheter (1) is slidably connected to a water-stopping clip (6), the top of one end of the catheter (1) is fixedly connected to an injection balloon cavity (7), and the rubber joint (32) is made of elastic material.

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