Indwelling catheter

Abstract

The utility model discloses an indwelling catheter which comprises a catheter body, an adjusting mechanism is arranged on the catheter body, a binding mechanism is arranged on the adjusting mechanism, and a connecting pipe is arranged at the end, away from the catheter body, of the adjusting mechanism. According to the indwelling catheter, the fixing ring and the three-way ball can be driven to rotate through the rotating rod by rotating the handle, when the three-way ball rotates to a proper position and needs to be fixed, the threaded rod can be rotated, then the inserting block is driven to be inserted into the corresponding inserting hole at the moment, rotation of the fixing ring is limited, and the three-way ball is fixed. When the three-way ball needs to be adjusted again, the threaded rod needs to be rotated many times, the three-way ball can be driven to move along with the three-way ball by rotating the handle only when the insertion block leaves the insertion hole, and the situation that the three-way ball moves along with the three-way ball due to the fact that the patient accidentally rotates the handle is reduced through limitation of the insertion block; and the stability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary device technology, and in particular to an indwelling urinary catheter. Background Technology

[0002] An indwelling urinary catheter is a medical device used for long-term urination. It is typically inserted through the urethra and left in the bladder. Its main purpose is to help patients who cannot urinate voluntarily to collect urine, monitor the volume and nature of urine, relieve urethral obstruction, or provide urinary system treatment. When using the catheter, it is essential to secure it properly to prevent dislodgement or displacement, and to regularly check its patency. The urine bag should be kept clean, and aseptic techniques should be followed to prevent infection. These measures help improve patient comfort and safety.

[0003] For example, Chinese utility model patent (CN220158991U) discloses an indwelling urinary catheter, which describes: "By adding a three-way connecting tube between the catheter body and the urine bag, and controlling the sampling port to be connected to the catheter body via a control device, medical staff can directly sample the patient's urine through the sampling port. When the sampling port is switched to a blocked state with the catheter body, the indwelling catheter maintains its normal indwelling catheterization function, eliminating the need for medical staff to disassemble the catheter and urine bag for sampling, thus simplifying the urine sample collection process." It also describes the technical problem: "In clinical practice, collecting urine samples from patients with indwelling catheters is often quite complex and requires nursing staff. Each time a urine sample is collected, the interface between the catheter and the drainage bag needs to be opened, disinfected, and then collected. After the sample is collected, the catheter needs to be reconnected to the drainage bag. This traditional operation increases the workload of nurses and also increases the risk of urinary tract infection for patients due to repeated opening and closing of the catheter connection."

[0004] In summary, existing technologies utilize rotating the anti-slip handle to adjust the three-way ball valve to control the connection or blockage between the sampling port and the catheter body. However, this method has the following technical problems: during use, due to the lack of restriction on the rotation of the three-way ball valve, the anti-slip handle may be accidentally rotated by the patient, causing the three-way ball valve to move and resulting in poor urine drainage. Therefore, this application proposes an indwelling catheter to provide a new technical solution to solve the technical problems mentioned in the above patent. Utility Model Content

[0005] Based on this, it is necessary to address the aforementioned technical problems by providing an indwelling urinary catheter. By rotating the handle, the fixing ring and the three-way ball can be rotated via the rotating rod. When the three-way ball is rotated to the appropriate position and needs to be fixed, the threaded rod can be rotated, causing the insertion block to be inserted into the corresponding insertion hole, restricting the rotation of the fixing ring. This, in turn, restricts the rotation of the three-way ball via the rotating rod. When the three-way ball needs to be adjusted again, the threaded rod must be rotated multiple times until the insertion block leaves the insertion hole before the three-way ball can be moved by rotating the handle. The restriction by the insertion block reduces the possibility of the three-way ball moving due to accidental rotation of the handle by the patient, improving the stability of the device. Furthermore, the restriction by the limiting rod ensures that the fixing ring can only rotate forward and backward within a 90-degree range, thus limiting the rotation angle of the rotating rod. This limitation on the rotation range of the rotating rod means that when adjusting the direction of urine flow, the handle can only be turned in the rotatable direction, reducing the possibility of incorrect operation by medical staff.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] An indwelling urinary catheter used for urine culture specimen collection.

[0008] The indwelling urinary catheter specifically includes:

[0009] The catheter body has an adjustment mechanism and a binding mechanism. A connecting tube is provided at the end of the adjustment mechanism away from the catheter body, and a urine bag is fixedly connected to the end of the connecting tube away from the adjustment mechanism.

[0010] The adjustment mechanism includes a fixed tube, a fixed shell, a three-way ball, a first limiting component, a second limiting component, and a sampling component. The outer wall of the catheter body is fixedly connected to the fixed tube, the inner wall of the fixed tube is fixedly connected to the outer wall of the connecting tube, the inner wall of the fixed tube is fixedly connected to the fixed shell, and the inner wall of the fixed shell is rotatably connected to the three-way ball.

[0011] In a preferred embodiment of the indwelling catheter provided by this utility model, the first limiting component includes a rotating rod. The rotating rod is fixedly connected to the outer wall of the three-way ball. A handle is fixedly connected to the end of the rotating rod away from the three-way ball. The outer wall of the rotating rod is rotatably connected to the inner walls of the fixed shell and the fixed tube, respectively. A supporting shell is fixedly connected to the outer wall of the fixed shell. The rotating rod is rotatably connected to the inner wall of the supporting shell. A fixing ring is fixedly connected to the outer wall of the rotating rod. A limiting rod is fixedly connected to the inner wall of the supporting shell. The limiting rod is slidably connected to the inner wall of the fixing ring.

[0012] In a preferred embodiment of the indwelling catheter provided by this utility model, the second limiting component includes insertion holes. Two insertion holes are provided on the outer wall of the fixing ring. A threaded rod is threadedly connected to the inner wall of the support shell. An insertion block is fixedly connected to one end of the threaded rod near the fixing ring. The insertion block is inserted into the insertion hole.

[0013] In a preferred embodiment of the indwelling urinary catheter provided by this utility model, the sampling assembly includes a sampling tube, the inner wall of the fixed tube is fixedly connected to the sampling tube, the inner wall of the sampling tube is fixedly connected to a rubber stopper, and the outer wall of the sampling tube is threadedly connected to a protective cap.

[0014] In a preferred embodiment of the indwelling catheter provided by this utility model, the binding mechanism includes locking blocks. Locking blocks are slidably connected to the inner wall of the handle on both sides of the middle portion. Springs are fixedly connected to the sides of the two locking blocks that are close to each other. The ends of the two springs that are close to each other are fixedly connected to the inner wall of the handle. Pressing plates are fixedly connected to the outer walls of the two locking blocks. The two pressing plates are slidably connected to the inner wall of the handle.

[0015] As a preferred embodiment of the indwelling urinary catheter provided by this utility model, the binding mechanism further includes a casing, the handle is inserted into the casing, the locking block is inserted into the casing, and the two sides of the casing are respectively fixedly connected with straps.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The indwelling catheter provided by this utility model allows the fixing ring and the three-way ball to rotate by rotating the handle and the rotating rod. When the three-way ball is rotated to the appropriate position and needs to be fixed, the threaded rod can be rotated to drive the insertion block into the corresponding insertion hole, restricting the rotation of the fixing ring. The rotation of the three-way ball is thus restricted by the rotating rod. When the three-way ball needs to be adjusted again, the threaded rod needs to be rotated multiple times to make the insertion block leave the insertion hole before the three-way ball can be moved by rotating the handle. The restriction of the insertion block reduces the possibility of the three-way ball moving due to the patient accidentally rotating the handle, thus improving the stability of the device. Furthermore, under the restriction of the limiting rod, the fixing ring can only rotate in both directions within 90 degrees, thus limiting the rotation angle of the rotating rod. The limitation of the rotation range of the rotating rod means that when it is necessary to adjust the direction of urine flow, the handle can only be turned in the rotatable direction, reducing the possibility of incorrect operation by medical staff.

[0018] The indwelling catheter provided by this utility model can be fixed to the patient's abdomen or thigh with two straps. Then, the two pressing plates can be pressed towards the middle to retract the two locking blocks into the handle. Then, the handle can be inserted into the casing to further fix the device, reducing the possibility of the catheter body falling off or shifting, improving the stability of the device. Furthermore, by fixing the handle to the casing, the possibility of accidentally turning the handle is further reduced, improving the practicality of the device. Attached Figure Description

[0019] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the overall structure of the indwelling urinary catheter provided by this utility model;

[0021] Figure 2 A partial cross-sectional schematic diagram of the indwelling urinary catheter provided by this utility model;

[0022] Figure 3 A schematic diagram of the internal structure of the fixing tube, fixing shell and supporting shell of the indwelling urinary catheter provided by this utility model;

[0023] Figure 4 An enlarged schematic diagram of the internal structure of the support shell for the indwelling urinary catheter provided by this utility model;

[0024] Figure 5 The indwelling urinary catheter provided by this utility model Figure 4 Enlarged view of A in the middle;

[0025] Figure 6 This is an enlarged structural diagram of the binding mechanism for the indwelling urinary catheter provided by this utility model.

[0026] The markings in the diagram are explained as follows:

[0027] 1. Catheter body; 2. Adjustment mechanism; 3. Binding mechanism; 4. Connecting tube; 5. Urine bag; 6. Fixing tube; 7. Fixing shell; 8. Three-way ball; 9. Sampling tube; 10. Protective cap; 11. Rubber stopper; 12. Rotating rod; 13. Support shell; 14. Fixing ring; 15. Limiting rod; 16. Insertion hole; 17. Threaded rod; 18. Insertion block; 19. Handle; 20. Locking block; 21. Spring; 22. Pressing plate; 23. Outer shell; 24. Binding strap. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0029] As described in the background art, however, during the use of this device, due to the lack of restriction on the rotation of the three-way ball valve, the patient may accidentally rotate the anti-slip handle, which in turn causes the three-way ball valve to move, resulting in poor urine drainage.

[0030] To solve this technical problem, this utility model provides an indwelling urinary catheter for the collection of urine culture specimens.

[0031] For details, please refer to Figures 1-2 Indwelling urinary catheters specifically include:

[0032] The catheter body 1 has an adjustment mechanism 2 and a binding mechanism 3. A connecting tube 4 is provided at the end of the adjustment mechanism 2 away from the catheter body 1. A urine bag 5 is fixedly connected to the end of the connecting tube 4 away from the adjustment mechanism 2.

[0033] The adjustment mechanism 2 includes a fixed tube 6, a fixed shell 7, a three-way ball 8, a first limiting component, a second limiting component, and a sampling component. The fixed tube 6 is fixedly connected to the outer wall of the catheter body 1. The inner wall of the fixed tube 6 is fixedly connected to the outer wall of the connecting tube 4. The fixed shell 7 is fixedly connected to the inner wall of the fixed tube 6. The three-way ball 8 is rotatably connected to the inner wall of the fixed shell 7.

[0034] The indwelling catheter provided by this utility model allows the fixing ring 14 and the three-way ball 8 to rotate by rotating the handle 19 and the rotating rod 12. When the three-way ball 8 is rotated to the appropriate position and needs to be fixed, the threaded rod 17 can be rotated to drive the insertion block 18 into the corresponding insertion hole 16, restricting the rotation of the fixing ring 14. In turn, the rotation of the three-way ball 8 is restricted by the rotating rod 12. When the three-way ball 8 needs to be adjusted again, the threaded rod 17 needs to be rotated multiple times so that the insertion block 18 leaves the insertion hole 16 before the three-way ball 8 can be moved by rotating the handle 19. The restriction of the insertion block 18 reduces the possibility of the three-way ball 8 moving due to the patient accidentally rotating the handle 19, thus improving the stability of the device. Furthermore, under the restriction of the limiting rod 15, the fixing ring 14 can only rotate in both directions within 90 degrees, thus restricting the rotation angle of the rotating rod 12. The restriction of the rotation range of the rotating rod 12 means that when it is necessary to adjust the direction of urine flow, the handle 19 can only be turned in the rotatable direction, reducing the possibility of incorrect operation by medical staff.

[0035] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0036] Example 1:

[0037] Please refer to Figures 2-5 An indwelling urinary catheter, comprising:

[0038] The first limiting component includes a rotating rod 12. The rotating rod 12 is fixedly connected to the outer wall of the three-way ball 8. A handle 19 is fixedly connected to the end of the rotating rod 12 away from the three-way ball 8. The outer wall of the rotating rod 12 is rotatably connected to the inner wall of the fixed shell 7 and the fixed tube 6. A support shell 13 is fixedly connected to the outer wall of the fixed shell 7. The rotating rod 12 is rotatably connected to the inner wall of the support shell 13. A fixing ring 14 is fixedly connected to the outer wall of the rotating rod 12. A limiting rod 15 is fixedly connected to the inner wall of the support shell 13. The limiting rod 15 is slidably connected to the inner wall of the fixing ring 14. The limiting rod 15 can slide in the corresponding groove on the fixing ring 14. Under the limitation of the limiting rod 15, the fixing ring 14 can rotate 90 degrees at a time, thus limiting the range of motion of the three-way ball 8.

[0039] The second limiting component includes insertion holes 16. Two insertion holes 16 are provided on the outer wall of the fixing ring 14. A threaded rod 17 is threadedly connected to the inner wall of the support shell 13. An insertion block 18 is fixedly connected to one end of the threaded rod 17 near the fixing ring 14. The insertion block 18 is inserted into the insertion holes 16. The insertion block 18 can prevent the threaded rod 17 from rotating out of the support shell 13, thus ensuring the stability of the device. The two insertion holes 16 on the fixing ring 14 can fix the position of the fixing ring 14 for sampling and non-sampling respectively. When sampling urine, it is possible to choose whether to limit the position of the three-way ball 8 according to the actual operation.

[0040] The sampling assembly includes a sampling tube 9, which is fixedly connected to the inner wall of the fixed tube 6. A rubber stopper 11 is fixedly connected to the inner wall of the sampling tube 9, and a protective cap 10 is threadedly connected to the outer wall of the sampling tube 9. When sampling, the protective cap 10 can be removed, and then a sampling syringe that matches the inner diameter of the sampling tube 9 can be inserted into the sampling tube 9. Sampling can be performed by the needle passing through the rubber stopper 11. The rubber stopper 11 has good shrinkage properties and can close after the needle leaves the rubber stopper 11.

[0041] With the above structural design, when sampling is required, rotating the threaded rod 17 causes the insertion hole 16 to disengage from its corresponding position. Then, rotating the handle 19 allows the rotating rod 12 to drive the fixing ring 14 and the three-way ball 8 to rotate. During this process, the limiting rod 15 slides within the fixing ring 14. The rotation of the three-way ball 8 connects the catheter body 1 to the sampling tube 9, thus blocking the connection between the catheter body 1 and the connecting tube 4. The protective cap 10 can then be rotated to separate it from the sampling tube 9. Afterwards, sampling... The syringe passes through the rubber stopper 11 to take a sample. After the sampling is completed, the syringe is removed and the protective cap 10 is installed on the sampling tube 9. After the sampling is completed, the handle 19 is rotated in the opposite direction, which causes the rotating rod 12, the fixing ring 14 and the three-way ball 8 to rotate in the opposite direction. This causes the limiting rod 15 to slide in the opposite direction within the fixing ring 14, and the movement of the three-way ball 8 causes the catheter body 1 and the sampling tube 9 to be blocked, thereby connecting the catheter body 1 and the connecting tube 4. Then, the threaded rod 17 is rotated in the opposite direction, which causes the threaded rod 17 to drive the insertion block 18 to be inserted into the insertion hole 16.

[0042] Example 2:

[0043] The indwelling urinary catheter provided in Example 1 has been further optimized, specifically, as follows: Figures 4-6As shown, the binding mechanism 3 includes a locking block 20. The inner wall of the handle 19 and the two sides located in the middle are respectively slidably connected to the locking blocks 20. The two locking blocks 20 are respectively fixedly connected to the side of each other. The two springs 21 are respectively fixedly connected to the inner wall of the handle 19 at the end of each other. The outer wall of each locking block 20 is fixedly connected to a pressing plate 22. The two pressing plates 22 are slidably connected to the inner wall of the handle 19. The locking blocks 20 can be inserted into the corresponding holes on the housing 23.

[0044] The binding mechanism 3 also includes a housing 23, a handle 19 inserted into the housing 23, a locking block 20 inserted into the housing 23, and straps 24 fixedly connected to both sides of the housing 23. The housing 23 can be bound to the patient's legs or abdomen through the straps 24, and then the handle 19 can be fixed inside the housing 23. This can reduce the possibility of the catheter body 1 being pulled accidentally, and also reduce the risk of the handle 19 being turned accidentally.

[0045] With the above structural design, the casing 23 can be fixed to the patient's abdomen or thigh by the two straps 24. Then, the two pressure plates 22 can be pressed towards the center, which will cause the two springs 21 to deform, causing the two locking blocks 20 to retract into the handle 19. When the two locking blocks 20 are released, the locking blocks 20 will slide inside the handle 19 under the action of the corresponding spring 21. Then, the locking blocks 20 will be inserted into the corresponding holes in the casing 23, thus fixing the position of the handle 19.

Claims

1. An indwelling urinary catheter comprising a urinary catheter body (1), characterized in that: An adjustment mechanism (2) is provided on the main body (1) of the urinary catheter, and a binding mechanism (3) is provided on the adjustment mechanism (2). A connecting tube (4) is provided at one end of the adjustment mechanism (2) away from the main body (1) of the urinary catheter, and a urine bag (5) is fixedly connected at one end of the connecting tube (4) away from the adjustment mechanism (2). The adjustment mechanism (2) includes a fixed tube (6), a fixed shell (7), a three-way ball (8), a first limiting component, a second limiting component, and a sampling component. The outer wall of the catheter body (1) is fixedly connected to the fixed tube (6), the inner wall of the fixed tube (6) is fixedly connected to the outer wall of the connecting tube (4), the inner wall of the fixed tube (6) is fixedly connected to the fixed shell (7), and the inner wall of the fixed shell (7) is rotatably connected to the three-way ball (8).

2. The indwelling urinary catheter of claim 1, wherein, The first limiting component includes a rotating rod (12), the outer wall of the three-way ball (8) is fixedly connected to the rotating rod (12), the end of the rotating rod (12) away from the three-way ball (8) is fixedly connected to a handle (19), the outer wall of the rotating rod (12) is rotatably connected to the inner wall of the fixed shell (7) and the fixed tube (6), the outer wall of the fixed shell (7) is fixedly connected to a support shell (13), the rotating rod (12) is rotatably connected to the inner wall of the support shell (13), the outer wall of the rotating rod (12) is fixedly connected to a fixing ring (14), the inner wall of the support shell (13) is fixedly connected to a limiting rod (15), and the limiting rod (15) is slidably connected to the inner wall of the fixing ring (14).

3. The indwelling urinary catheter of claim 2, wherein, The second limiting component includes a socket (16). Two sockets (16) are provided on the outer wall of the fixing ring (14). A threaded rod (17) is threadedly connected to the inner wall of the support shell (13). A plug (18) is fixedly connected to one end of the threaded rod (17) near the fixing ring (14). The plug (18) is inserted into the socket (16).

4. The indwelling urinary catheter of claim 1, wherein, The sampling assembly includes a sampling tube (9), the inner wall of the fixed tube (6) is fixedly connected to the sampling tube (9), the inner wall of the sampling tube (9) is fixedly connected to a rubber stopper (11), and the outer wall of the sampling tube (9) is threadedly connected to a protective cap (10).

5. The indwelling urinary catheter of claim 2, wherein, The binding mechanism (3) includes a locking block (20). The inner wall of the handle (19) and the two sides located in the middle are respectively slidably connected to the locking blocks (20). The two locking blocks (20) are respectively fixedly connected to the side of each other. The two springs (21) are respectively fixedly connected to the inner wall of the handle (19) at the end of each other. The outer wall of each locking block (20) is fixedly connected to a pressing plate (22). The two pressing plates (22) are slidably connected to the inner wall of the handle (19).

6. The indwelling urinary catheter of claim 5, wherein, The binding mechanism (3) also includes a housing (23), the handle (19) is inserted into the housing (23), the locking block (20) is inserted into the housing (23), and the two sides of the housing (23) are respectively fixedly connected with straps (24).

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