Urethral catheter

Abstract

The utility model relates to the technical field of urethral catheters, and discloses a urethral catheter which comprises a first inflation urethral catheter guide wire and a urethral catheter body, the first inflation urethral catheter guide wire is arranged on the urethral catheter body, a first inflation urethral catheter head is arranged at the top end of the urethral catheter body, and a second inflation urethral catheter head is arranged at the bottom end of the urethral catheter body. According to the utility model, through the arrangement of the catheter flushing cavity inlet and the catheter flushing cavity screw cap, when the bladder is continuously flushed, the catheter flushing cavity inlet is communicated with the first inflating catheter head through an infusion apparatus, and the first inflating catheter head is communicated with the first inflating catheter head through the first inflating catheter head fixer and the first inflating catheter head fixer, and the first inflating catheter head fixer and the first inflating catheter head fixer are fixedly connected with the catheter body through the soft silica gel fixer. Bladder flushing fluid is input into the first catheter flushing cavity, enters the catheter flushing cavity from the catheter flushing cavity inlet and directly reaches the bladder, flows into the catheter main drainage cavity after flushing, flows out of the catheter main drainage cavity outlet and enters a drainage bag, and therefore bladder flushing of a user is safer and more convenient.

Description

Technical Field

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

[0002] A urinary catheter is a tube that is inserted from the urethra into the bladder to drain urine. It is a tube made of natural rubber, silicone rubber or polyvinyl chloride (PVC) that can be inserted through the urethra into the bladder to drain urine. The drainage tube is connected to a urine bag to collect urine, helping people with urination difficulties such as prostate patients to urinate normally. It can also be used to prepare for surgery, empty urine during surgery to avoid accidental injury to the bladder, and can also be used after bladder repair surgery to empty urine to avoid bladder expansion. It can also be used for bladder treatment, so that medical staff can accurately record the patient's urine volume.

[0003] The catheter heads of existing clinically used catheters are relatively long, and when they are retained in the bladder wall for a long time, they are prone to rubbing against the bladder wall, increasing the risk of recurrence of bladder fistula after bladder repair surgery. Moreover, when there are blood clots in the bladder, the catheters are easily blocked, which is very inconvenient for users to use. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a urinary catheter, which solves the problem that the existing clinically used urinary catheter has a long catheter head, which is easy to rub the bladder wall when it is retained in the bladder wall for a long time, thereby increasing the risk of bladder fistula again after bladder repair surgery, and when there is a blood clot in the bladder, it is also easy to block the urinary catheter, which is very inconvenient for users to use.

[0005] The utility model provides the following technical solutions: a urinary catheter, comprising a first inflatable urinary catheter guide wire and a urinary catheter body, wherein the first inflatable urinary catheter guide wire is arranged on the urinary catheter body, a first inflatable urinary catheter head is arranged on the top of the urinary catheter body, the first inflatable urinary catheter head and the urinary catheter body are fixedly connected by an inflatable urinary catheter head fixture and a soft silicone fixture, a first urinary catheter main drainage cavity is arranged on the side of the urinary catheter body, and a first urinary catheter secondary drainage cavity is connected to the bottom end of the urinary catheter body;

[0006] The other side of the catheter body is connected to a first urinary catheter flushing cavity, an opening at the end of the first urinary catheter flushing cavity is provided with a thread, a first fixed balloon water injection cavity is provided above the first urinary catheter flushing cavity, the first fixed balloon water injection cavity is connected to the catheter body, a first fixed balloon is provided on the outside of the top of the catheter body, an inflatable urinary catheter guide wire body is provided at the bottom end of the first inflatable urinary catheter head, an inflatable urinary catheter guide wire air valve is connected to the bottom end of the inflatable urinary catheter guide wire air valve, the inside of the urinary catheter flushing cavity is provided in the urinary catheter body, the inside of the fixed balloon water injection cavity is provided on the side of the urinary catheter body, a fixed balloon water injection cavity entrance is provided on the first fixed balloon water injection cavity, a fixed balloon water injection cavity valve is provided at the end of the first fixed balloon water injection cavity, a urinary catheter flushing cavity entrance is provided on the first urinary catheter flushing cavity, and a urinary catheter is provided at the end of the first urinary catheter flushing cavity A flushing cavity screw cap, a urinary catheter flushing cavity body connecting tube is arranged on the side of the catheter flushing cavity screw cap, a first catheter secondary drainage cavity outlet is arranged on the first catheter secondary drainage cavity, a first catheter secondary drainage cavity closing cap is arranged at the bottom of the first catheter secondary drainage cavity, a first catheter secondary drainage cavity closing cap injection cavity is arranged at the bottom of the first catheter secondary drainage cavity, a catheter secondary drainage cavity closing cap injection cavity is arranged below the injection cavity of the first catheter secondary drainage cavity closing cap, the side of the catheter secondary drainage cavity closing cap injection cavity closing cap is connected to the first catheter secondary drainage cavity closing cap through a catheter secondary drainage cavity double closing cap connecting tube, a catheter secondary drainage cavity outlet body connecting tube is arranged on the side of the first catheter secondary drainage cavity, a catheter main drainage cavity outlet is arranged on the first catheter main drainage cavity, and the first catheter main drainage cavity is provided with the interior of the catheter main drainage cavity.

[0007] Preferred technical solution 1: The catheter body is made of silicone material.

[0008] Preferred technical solution 2: the first inflatable urinary catheter head is made of elastic soft silicone, and the first inflatable urinary catheter head can be deformed.

[0009] Preferred technical solution three: the body of the inflatable ureteral guide wire is made of a hollow alloy guide wire.

[0010] This solution can ensure that the guide wire central cavity of the inflatable urinary catheter guide wire body contains positive pressure air.

[0011] Preferred technical solution four: a connecting thread is provided on the entrance of the urinary catheter flushing cavity.

[0012] This solution enables the entrance of the urinary catheter flushing cavity to be adapted to the spiral opening of an ordinary infusion set through a connecting thread, so that when a user does not have a professional bladder flusher, the user can directly connect the ordinary infusion set to perform continuous bladder flushing operations.

[0013] Preferred technical solution five: a strip-shaped protruding anti-slip strip is arranged inside the outlet of the main drainage cavity of the urinary catheter.

[0014] This solution can make the connection between the outlet of the main drainage cavity outlet of the urinary catheter and the external drainage bag more stable, thereby preventing the external drainage bag from sliding.

[0015] Compared with the prior art, the utility model provides a urinary catheter with the following beneficial effects:

[0016] (1) The utility model is provided with a catheter flushing cavity inlet and a catheter flushing cavity screw cap. When the bladder is continuously flushed, the catheter flushing cavity screw cap is separated from the catheter flushing cavity inlet, and the infusion end screw of a common infusion set is connected to the catheter flushing cavity inlet. The bladder flushing liquid is input into the first catheter flushing cavity through the infusion set. The bladder flushing liquid enters the catheter flushing cavity from the catheter flushing cavity inlet and directly reaches the bladder. After flushing, the bladder flushing liquid flows into the main drainage cavity of the catheter and flows out from the outlet of the main drainage cavity of the catheter into the drainage bag, making the user's bladder flushing safer and more convenient.

[0017] (2) After bladder repair surgery, patients need to keep a urinary catheter for a long time. The utility model can effectively reduce the friction on the bladder wall, especially the bladder repair patch, and reduce the failure of bladder repair surgery caused by friction on the bladder repair patch.

[0018] (3) When medication needs to be administered to the bladder, the screw cap of the catheter flushing cavity is separated from the entrance of the catheter flushing cavity, and medication is administered from the entrance of the catheter flushing cavity using a sterile syringe. The injection cavity closure cap of the secondary drainage cavity of the catheter is separated from the injection cavity of the secondary drainage cavity of the first catheter, and medication is administered from the injection cavity of the secondary drainage cavity closure cap using a sterile syringe. This greatly facilitates the user's medication administration to the bladder and improves the user's medication comfort.

[0019] (4) When it is necessary to extract the blood clot in the bladder, the bladder is flushed through the first catheter flushing cavity, the outlet of the first catheter secondary drainage cavity is connected to the negative pressure aspirator, and the appropriate negative pressure is adjusted to suck out the blood clot in the bladder, thereby preventing the blood clot from clogging the catheter. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0021] Figure 2 The structure of the utility model Figure 1 A schematic diagram of the structure of the body of the mid-inflated urinary catheter guide wire;

[0022] Figure 3 The structure of the utility model Figure 1A schematic diagram of the structure of the catheter without a urinary catheter head after the first fixed balloon is expanded;

[0023] In the figure:

[0024] 1. First inflatable urinary catheter guidewire; 2. Catheter body; 3. First urinary catheter main drainage cavity; 4. First urinary catheter secondary drainage cavity; 5. First urinary catheter flushing cavity; 6. First fixed balloon water injection cavity; 7. First inflatable urinary catheter head; 8. Inflatable urinary catheter head holder; 9. Soft silicone holder; 10. Inflatable urinary catheter guidewire body; 11. Inflatable urinary catheter guidewire air valve; 12. First fixed balloon; 13. Inside of urinary catheter flushing cavity; 14. Inside of fixed balloon water injection cavity; 15. Fixed balloon water injection cavity entrance; 16. Fixed Balloon water injection chamber valve; 17, catheter flushing chamber entrance; 18, catheter flushing chamber screw cap; 19, catheter flushing chamber body connecting tube; 20, first catheter secondary drainage chamber outlet; 21, first catheter secondary drainage chamber closing cap; 22, first catheter secondary drainage chamber closing cap injection chamber; 23, catheter secondary drainage chamber closing cap injection chamber closing cap; 24, catheter secondary drainage chamber double closing cap connecting tube; 25, catheter secondary drainage chamber outlet body connecting tube; 26, catheter main drainage chamber outlet; 27, catheter main drainage chamber interior. DETAILED DESCRIPTION

[0025] See also Figure 1-3

[0026] Embodiment 1: A urinary catheter comprises a first inflatable urinary catheter guide wire 1 and a urinary catheter body 2, wherein the first inflatable urinary catheter guide wire 1 is arranged on the urinary catheter body 2, a first inflatable urinary catheter head 7 is arranged at the top of the urinary catheter body 2, the first inflatable urinary catheter head 7 is fixedly connected to the urinary catheter body 2 by an inflatable urinary catheter head fixture 8 and a soft silicone fixture 9, a first urinary catheter main drainage cavity 3 is arranged on the side of the urinary catheter body 2, and a first urinary catheter secondary drainage cavity 4 is connected to the bottom end of the urinary catheter body 2.

[0027] The other side of the catheter body 2 is connected to a first urinary catheter flushing cavity 5, an opening at the end of the first urinary catheter flushing cavity 5 is provided with a thread, a first fixed balloon water injection cavity 6 is provided above the first urinary catheter flushing cavity 5, the first fixed balloon water injection cavity 6 is connected to the catheter body 2, a first fixed balloon 12 is provided on the outside of the top of the catheter body 2, an inflatable urinary catheter guide wire body 10 is provided at the bottom end of the first inflatable urinary catheter head 7, an inflatable urinary catheter guide wire air valve 11 is connected to the bottom end of the inflatable urinary catheter guide wire body 10, a urinary catheter flushing cavity interior 13 is provided in the catheter body 2, a fixed balloon water injection cavity interior 14 is provided on the side of the catheter body 2, a fixed balloon water injection cavity inlet 15 is provided on the first fixed balloon water injection cavity 6, and a fixed balloon water injection cavity valve 16 is provided at the end of the first fixed balloon water injection cavity 6.

[0028] The first urinary catheter flushing cavity 5 is provided with a urinary catheter flushing cavity inlet 17, the end of the first urinary catheter flushing cavity 5 is provided with a urinary catheter flushing cavity screw cap 18, the side of the urinary catheter flushing cavity screw cap 18 is provided with a urinary catheter flushing cavity body connecting pipe 19, the first urinary catheter secondary drainage cavity 4 is provided with a first urinary catheter secondary drainage cavity outlet 20, the bottom of the first urinary catheter secondary drainage cavity 4 is provided with a first urinary catheter secondary drainage cavity sealing cap 21, the bottom of the first urinary catheter secondary drainage cavity 4 is provided with a first urinary catheter secondary drainage cavity sealing cap injection cavity 22, the first urinary catheter secondary drainage cavity 4 is provided with a first urinary catheter secondary drainage cavity sealing cap injection cavity 22, the first urinary catheter secondary drainage cavity 4 is provided with a first urinary catheter secondary drainage cavity outlet 20 ... A catheter secondary drainage chamber closing cap injection chamber closing cap 23 is arranged below the drainage chamber closing cap injection chamber closing cap 22, and the side of the catheter secondary drainage chamber closing cap injection chamber closing cap 23 is connected to the first catheter secondary drainage chamber closing cap 21 through a catheter secondary drainage chamber double closing cap connecting tube 24, a catheter secondary drainage chamber outlet body connecting tube 25 is arranged on the side of the first catheter secondary drainage chamber 4, a catheter main drainage chamber outlet 26 is arranged on the first catheter main drainage chamber 3, and a catheter main drainage chamber interior 27 is arranged on the first catheter main drainage chamber 3.

[0029] The catheter body 2 is made of silicone material.

[0030] The first inflatable urinary catheter head 7 is made of elastic soft silicone and can be deformed.

[0031] Embodiment 2: The difference between this embodiment and embodiment 1 is that, the inflatable urinary catheter guide wire body 10 is made of a hollow alloy guide wire.

[0032] The guidewire central cavity of the inflatable urinary catheter guidewire body 10 contains positive pressure air.

[0033] Embodiment 3: The difference between this embodiment and embodiment 1 is that a connecting thread is provided on the inlet 17 of the urinary catheter flushing cavity.

[0034] The inlet 17 of the urinary catheter flushing cavity can be adapted to the spiral port of a common infusion set through the connecting thread, so that when the user does not have a professional bladder flusher, the common infusion set can be directly connected to perform continuous bladder flushing operations.

[0035] Embodiment 4: The difference between this embodiment and embodiment 1 is that a strip-shaped protruding anti-slip strip is provided inside the outlet of the main drainage cavity outlet 26 of the urinary catheter.

[0036] The connection between the outlet portion of the main drainage cavity outlet 26 of the urinary catheter and the external drainage bag is made more stable, thereby preventing the external drainage bag from sliding.

[0037] Embodiment 5: The difference between this embodiment and embodiment 1 is that the urinary catheter without the catheter head can be retained in the patient's body.

[0038] Patients who have retained a urinary catheter for a long time can effectively avoid the friction of the catheter head against the bladder wall, especially the bladder repair patch, and reduce the failure of bladder repair caused by friction against the bladder repair patch.

[0039] The first inflatable urinary catheter guide wire 1 plays a guiding role during the catheterization process, allowing the catheter to enter the bladder smoothly. After the catheterization is successful, the air in the urinary catheter guide wire is extracted to allow the guide wire to be smoothly withdrawn from the catheter.

[0040] The catheter body 2 is made of silicone material, which has a long retention time, is not easy to be allergic, is soft and skin-friendly, and reduces the incidence of pressure sores caused by long-term wearing of the catheter.

[0041] The main drainage cavity 3 of the first urinary catheter is connected to a drainage bag, and urine is discharged from the bladder through this cavity.

[0042] The first urinary catheter secondary drainage cavity 4 allows the urinary catheter guide wire to be fixed in the drainage cavity. After successful catheterization, the urinary catheter guide wire is pulled out of the urinary catheter from the cavity. This cavity can be used as a urinary catheter secondary drainage cavity, can be connected to a negative pressure aspirator to suck blood clots in the bladder, and can also be connected to a bladder flusher.

[0043] The first urinary catheter flushing cavity 5 is connected to the inside of the urinary catheter flushing cavity. The bladder flushing fluid can enter the bladder from this cavity to play a flushing role. It is adapted to a common infusion set and can be used to continuously flush the bladder with a common infusion set and bladder flushing fluid. It can also be used as a syringe to perform bladder administration.

[0044] The first fixed balloon water injection cavity 6 is connected to the interior of the fixed balloon and plays a role in sucking the physiological saline in the fixed balloon.

[0045] The first inflatable urinary catheter head 7 is made of elastic soft silicone and contains positive pressure air, so that the urinary catheter head expands when inflated and plays a guiding role when inserting a urinary catheter. After the air is extracted, the urinary catheter head contracts.

[0046] The inflatable urinary catheter head holder 8 is below the urinary catheter head and is made of silicone. There is a small section of soft silicone holder 9 on both sides. There are drainage ports on both sides. When the urinary catheter is inserted into the bladder, urine flows into the urinary catheter through the drainage ports, indicating that the urinary catheter head has reached the junction of the urethra and the bladder. When the air is extracted, the inflatable urinary catheter head shrinks and the silicone fixing ring is retracted into the urinary catheter to ensure smooth removal.

[0047] The inflatable urinary catheter guide wire body 10 is made of a hollow alloy guide wire, and the central cavity of the guide wire contains positive pressure air.

[0048] The inflatable urinary catheter guide wire air valve 11 ensures that the inflatable urinary catheter guide wire and the inflatable urinary catheter head maintain the positive pressure inflation state through the air valve. After the urinary catheter is inserted into the bladder, air is extracted with a syringe so that the whole inflatable guide wire is smoothly pulled out from the urinary catheter.

[0049] The first fixing balloon 12 can be inflated and filled by injecting physiological saline to fix the catheter at the junction of the bladder and the urethra.

[0050] The catheter flushes the interior of the cavity 13, and the bladder flushing fluid enters the bladder through the catheter flushing cavity.

[0051] The interior of the fixed balloon water injection cavity 14 is used for the physiological saline to enter the fixed balloon through the cavity.

[0052] The fixed balloon water injection cavity inlet 15 is used for the physiological saline to enter the fixed balloon water injection cavity through the cavity.

[0053] The valve 16 of the fixed balloon water injection chamber can be used to inject saline into the fixed balloon using a syringe and maintain a positive pressure state to prevent leakage from causing the water balloon to shrink. Before pulling out the catheter, the saline in the fixed balloon can be drawn out in advance through this chamber using a syringe to shrink the water balloon to its most deflated state for easy removal.

[0054] The inlet 17 of the urinary catheter flushing cavity is adapted to the spiral port of a common infusion set. When there is no professional bladder flushing set, the common infusion set can be directly connected to perform continuous bladder flushing operation.

[0055] The screw cap 18 of the urinary catheter flushing cavity serves to seal the urinary catheter flushing cavity.

[0056] The urinary catheter flushing cavity connecting tube 19, the urinary catheter flushing cavity screw cap and the urinary catheter flushing cavity connecting tube, connect the urinary catheter flushing cavity screw cap and the urinary catheter flushing cavity to play a fixing role to prevent falling off and losing.

[0057] The secondary drainage cavity outlet 20 of the first urinary catheter can be connected to a drainage bag or a bladder irrigator. If there is a blood clot in the patient's bladder, the cavity can be connected to a negative pressure aspirator to suck out the blood clot in the bladder.

[0058] The first urinary catheter secondary drainage cavity sealing cap 21 serves to seal the outlet of the urinary catheter secondary drainage cavity.

[0059] The secondary drainage cavity of the first urinary catheter closes the injection cavity 22, which is adapted to the injection port of a syringe, and the syringe can inject drugs into the bladder through the cavity.

[0060] The closure cap of the secondary drainage cavity of the urinary catheter and the closure cap of the injection cavity 23 are adapted to the injection cavity and can completely seal the injection cavity to achieve a sealing effect.

[0061] The double-closed cap connecting tube 24 of the secondary drainage cavity of the urinary catheter connects and fixes the two closed cap secondary drainage cavity outlet body connecting tubes 25 and the main drainage cavity outlet 26 of the urinary catheter to prevent them from falling off and being lost.

[0062] The catheter secondary drainage cavity outlet body connecting tube 25, the catheter secondary drainage cavity closing cap and the catheter secondary drainage cavity outlet body connecting tube, connect the catheter secondary drainage cavity closing cap and the catheter secondary drainage cavity outlet body, play the role of fixing the closing cap to prevent it from falling off and losing

[0063] The main drainage cavity outlet 26 of the urinary catheter has a strip-shaped protruding anti-skid strip inside the outlet, which can play an anti-skid role when connected to a drainage bag.

[0064] The main drainage cavity 27 of the urinary catheter is where urine and flushing fluid in the bladder first flow into.

[0065] In this embodiment, since the catheter head of the existing clinically used catheter is relatively long, it is easy to rub the bladder wall when it is retained in the bladder wall for a long time, increasing the risk of bladder fistula again after bladder repair surgery. Moreover, when there is a blood clot in the bladder, the catheter is easily blocked, which is very inconvenient for users to use.

[0066] In summary, during the specific implementation, first, the first inflatable urinary catheter head 7 is in a filled state, the first fixed balloon 12 is in a deflated state, and fits the catheter body 2, the inflatable urinary catheter head fixture 8 and the soft silicone fixture 9 are in an open state, the soft silicone fixture 9 is outside the first fixed balloon 12, the inflatable urinary catheter guide wire air valve 11 is closed, and the first inflatable urinary catheter guide wire 1 is kept in a positive pressure state, the first inflatable urinary catheter guide wire 1 is inside the catheter body 2, the inflatable urinary catheter guide wire air valve 11 and the first urinary catheter secondary drainage cavity outlet 20 are tightly closed, the urinary catheter flushing cavity screw cap 18 and the urinary catheter flushing cavity inlet 17 are closed, and before inserting the catheter, the drainage bag is connected to the main drainage cavity outlet 26 of the catheter, and the catheter is inserted into the urethral orifice and sent to the bladder. When urine in the bladder flows into the catheter from the drainage ports on both sides of the inflatable urinary catheter head fixture 8 When the catheter is in the urethra, the catheter is pushed forward 2-3 cm, and a sterile syringe containing 10 ml of saline is used to connect the fixed balloon water injection chamber valve 16, and the saline is injected inward to fill the first fixed balloon 12, and the catheter is fixed at the bladder-urethra junction. The sterile syringe is connected to the inflatable catheter guide wire air valve 11, and all air is extracted to shrink the first inflatable catheter head 7. The inflatable catheter head fixer 8 and the soft silicone fixer 9 are returned to the urethra, and the inflatable catheter guide wire air valve 11 and the first catheter secondary drainage chamber outlet 20 are separated, and the first inflatable catheter guide wire 1 is extracted from the inside of the catheter, and the first catheter secondary drainage chamber closing cap 21 and the first catheter secondary drainage chamber outlet 20 are closed, and the catheter secondary drainage chamber closing cap injection chamber closing cap 23 and the first catheter secondary drainage chamber closing cap injection chamber 22 are closed.

[0067] Case 1: When continuous bladder flushing is required, separate the screw cap 18 of the catheter flushing cavity from the inlet 17 of the catheter flushing cavity, connect the screw cap of the infusion end of a common infusion set to the inlet 17 of the catheter flushing cavity, and input the bladder flushing fluid into the first catheter flushing cavity 5 through the infusion set. The bladder flushing fluid enters the interior 13 of the catheter flushing cavity from the inlet 17 of the catheter flushing cavity and directly reaches the bladder. After flushing, the bladder flushing fluid flows into the interior 27 of the main drainage cavity of the catheter and flows out from the outlet 26 of the main drainage cavity of the catheter into the drainage bag.

[0068] Case 2: When bladder medication is required, first, separate the catheter flushing cavity screw cap 18 from the catheter flushing cavity inlet 17, and use a sterile syringe to administer the medication from the catheter flushing cavity inlet 17; second, separate the catheter secondary drainage cavity closure cap injection cavity closure cap 23 from the first catheter secondary drainage cavity closure cap injection cavity 22, and use a sterile syringe to administer the medication from the first catheter secondary drainage cavity closure cap injection cavity 22.

[0069] Case 3: When the blood clot in the bladder blocks the catheter, the bladder is flushed from the first catheter flushing cavity 5, the first catheter secondary drainage cavity outlet 20 is connected to the negative pressure aspirator, and the appropriate negative pressure is adjusted to suck out the blood clot in the bladder.

Claims

1. A urinary catheter, comprising a first inflatable urinary catheter guide wire (1) and a urinary catheter body (2), characterized in that: The first inflatable urinary catheter guide wire (1) is arranged on the urinary catheter body (2); a first inflatable urinary catheter head (7) is arranged at the top of the urinary catheter body (2); the first inflatable urinary catheter head (7) and the urinary catheter body (2) are fixedly connected via an inflatable urinary catheter head holder (8) and a soft silicone holder (9); a first urinary catheter main drainage cavity (3) is arranged on the side of the urinary catheter body (2); and a first urinary catheter secondary drainage cavity (4) is connected to the bottom of the urinary catheter body (2); The other side of the catheter body (2) is connected to a first catheter flushing chamber (5), the opening at the end of the first catheter flushing chamber (5) is provided with a thread, a first fixed balloon water injection chamber (6) is provided above the first catheter flushing chamber (5), the first fixed balloon water injection chamber (6) is connected to the catheter body (2), a first fixed balloon (12) is provided on the outside of the top of the catheter body (2), an inflatable urinary catheter guide wire body (10) is provided at the bottom end of the first inflatable urinary catheter head (7), and the bottom of the inflatable urinary catheter guide wire body (10) is provided with a first fixed balloon (12) on the outside of the top of the catheter body (2), and an inflatable urinary catheter guide wire body (10) is provided at the bottom end of the first inflatable urinary catheter head (7). The end of the catheter is connected to an inflatable catheter guide wire air valve (11), the catheter body (2) is provided with an interior of a catheter flushing cavity (13), the side of the catheter body (2) is provided with an interior of a fixed balloon water injection cavity (14), the first fixed balloon water injection cavity (6) is provided with a fixed balloon water injection cavity inlet (15), the end of the first fixed balloon water injection cavity (6) is provided with a fixed balloon water injection cavity valve (16), the first catheter flushing cavity (5) is provided with a catheter flushing cavity inlet (17), the end of the first catheter flushing cavity (5) is provided with A catheter flushing cavity screw cap (18), a catheter flushing cavity connecting tube (19) is arranged on the side of the catheter flushing cavity screw cap (18), a first catheter secondary drainage cavity outlet (20) is arranged on the first catheter secondary drainage cavity (4), a first catheter secondary drainage cavity closing cap (21) is arranged at the bottom of the first catheter secondary drainage cavity (4), a first catheter secondary drainage cavity closing cap injection cavity (22) is arranged at the bottom of the first catheter secondary drainage cavity (4), and a catheter is arranged below the first catheter secondary drainage cavity closing cap injection cavity (22). The secondary drainage chamber closure cap is an injection chamber closure cap (23); the side of the secondary drainage chamber closure cap of the urinary catheter and the injection chamber closure cap (23) is connected to the first urinary catheter secondary drainage chamber closure cap (21) through a secondary drainage chamber double closure cap connecting tube (24); the side of the first urinary catheter secondary drainage chamber (4) is provided with a secondary drainage chamber outlet body connecting tube (25); the first urinary catheter main drainage chamber (3) is provided with a main drainage chamber outlet (26); the first urinary catheter main drainage chamber (3) is provided with a main drainage chamber interior (27).

2. A urinary catheter according to claim 1, characterized in that: The urinary catheter body (2) is made of silica gel material.

3. A urinary catheter according to claim 2, characterized in that: The first inflatable urinary catheter head (7) is made of elastic soft silica gel, and the first inflatable urinary catheter head (7) can be deformed.

4. A urinary catheter according to claim 3, characterized in that: The inflatable urethra guide wire body (10) is made of a hollow alloy guide wire.

5. A urinary catheter according to claim 4, characterized in that: The inlet (17) of the urinary catheter flushing cavity is provided with a connecting thread.

6. A urinary catheter according to claim 5, characterized in that: A strip-shaped raised anti-slip belt is arranged inside the outlet of the main drainage cavity outlet (26) of the urinary catheter.

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