Controllable catheter

Abstract

The invention discloses a controllable catheter, and particularly relates to the technical field of medical appliances, the controllable catheter comprises a three-cavity catheter, one end of a urine outlet pipe is provided with a control mechanism used for controlling the urine outlet flow rate and a switch, one end of a flushing pipe is provided with an adjusting mechanism used for controlling the flushing flow rate, and a connecting rod is pressed through the control mechanism to adjust the flushing flow rate. The convex head, the clamping head and the conical head are used for controlling the positions of the urine outlet hole in the sliding block and the opening hole of the urine outlet pipe, then the urine outlet pipe is opened or closed, urine is stored in the three-cavity catheter and the urine outlet pipe, and when a patient living with a urine pipe goes out, the patient does not need to be provided with a urine bag and can directly go to a toilet to discharge urine; the rotating plate is adjusted through the adjusting mechanism according to the bladder irrigation tolerance of the patient, so that the rotating plate can shield the irrigation hole, the flow rate of bladder irrigation is adjusted, the bladder irrigation device is suitable for different patients, and the phenomenon of urine leakage caused by too high flow rate is avoided.

Description

Technical Field

[0001] This application relates to the technical field of medical devices, and more specifically, to a controllable urinary catheter. Background Art

[0002] A urinary catheter is a tube inserted into the bladder through the urethra for urine drainage. It is a tube made of natural rubber, silicone rubber or polyvinyl chloride (PVC), which can be inserted into the bladder through the urethra to drain urine. After the urinary catheter is inserted into the bladder, there is a balloon near the head end of the urinary catheter to fix the urinary catheter in the bladder and prevent it from slipping out easily. The urine outlet tube is connected to a urine bag to collect urine. At the same time, it is necessary to drip medicine and perform bladder irrigation into the bladder through the irrigation cavity;

[0003] However, when the existing urinary catheters on the market are in use, the urine outlet tube cannot be closed, and the urine flow rate cannot be controlled. As a result, the urine outlet tube needs to be continuously connected to the urine bag for normal use. At the same time, the irrigation flow rate of the irrigation tube cannot be controlled, making it easy for some patients with low tolerance to bladder irrigation to experience urine leakage during irrigation;

[0004] Therefore, a controllable urinary catheter is proposed to solve the above problems. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, this application provides a controllable urinary catheter to solve the problems raised in the above background art.

[0006] To achieve the above object, this application provides the following technical solution: A controllable urinary catheter, including a three-chamber urinary catheter, the bottom of the three-chamber urinary catheter is fixedly connected with a urine outlet tube and an irrigation tube. The three-chamber urinary catheter and the irrigation tube are made of transparent silicone rubber. The inner wall of the three-chamber urinary catheter is provided with a urine outlet and an irrigation port. The urine outlet tube is matched with the urine outlet, the irrigation tube is matched with the irrigation port. One end of the urine outlet tube is provided with a control mechanism for controlling the urine flow rate and the switch, and one end of the irrigation tube is provided with an adjustment mechanism for controlling the irrigation flow rate.

[0007] Preferably, the control mechanism includes a connecting shell, a connecting rod, a slider, a urine outlet hole, a sealing gasket, a convex head, a light spring, a clamping head, a sliding groove, a sliding rod, a tapered head, a first spring, a connecting plate, a second spring, a limiting groove, a limiting block and a connecting block. One end of the urine outlet tube is fixedly connected with the connecting shell. The inner wall of the connecting shell is slidably connected with the connecting rod, the slider, the convex head and the clamping head. The surface of the connecting rod is fixedly connected with the slider. The surface of the slider is provided with the urine outlet hole. A sealing gasket is arranged on the top of the slider. One end of the connecting rod is fixedly connected with the convex head. A light spring is arranged inside one side of the convex head. One end of the light spring is fixedly connected with the clamping head, and the other end is fixedly connected with the connecting plate. The clamping head is slidably connected to the surface of the connecting rod. One side of the convex head is matched with one side of the clamping head. A sliding groove is arranged inside the connecting shell. The inner wall of the sliding groove is slidably connected with the sliding rod. One end of the sliding rod is fixedly connected with the tapered head. The surface of the sliding rod is sleeved with the first spring. One end of the first spring is fixedly connected with the connecting shell, and the other end is fixedly connected with the tapered head. The surface of one end of the connecting rod is sleeved with the second spring. One end of the second spring is fixedly connected with the connecting shell, and the other end is fixedly connected with the connecting plate. A limiting groove is arranged at the bottom of the connecting shell. The inner wall of the limiting groove is slidably connected with the limiting block. One end of the limiting block is fixedly connected with the connecting block.

[0008] Preferably, the inner wall size of the limiting groove matches the outer wall size of the limiting block.

[0009] Preferably, anti-slip pads are arranged on the inner wall of the limiting groove and the outer wall of the limiting block.

[0010] Preferably, a connecting head is fixedly connected to the bottom of the connecting shell. An internal thread groove is arranged on the inner wall of the connecting head. A sealing ring is arranged inside the connecting head.

[0011] Preferably, the adjusting mechanism includes a connecting sleeve, a flushing hole, a spring groove, a third spring, a retaining pin, a rotating plate and a clamping groove. One end of the flushing tube is fixedly connected with the connecting sleeve. The surface of the connecting sleeve is provided with the flushing hole. One end of the flushing tube is matched with the flushing hole. A spring groove is arranged inside the connecting sleeve. The third spring is arranged inside the spring groove. One end of the third spring is fixedly connected with the connecting sleeve, and the other end is fixedly connected with the retaining pin. The rotating plate is rotatably connected inside the connecting sleeve. Multiple groups of clamping grooves are arranged on the surface of the rotating plate. One end of the retaining pin is matched with the clamping groove.

[0012] Preferably, multiple groups of convex blocks are arranged on the surface of the rotating plate.

[0013] Preferably, an external thread head is arranged at one end of the connecting sleeve. A protective cover is threadedly connected to one end of the connecting sleeve.

[0014] Preferably, one end of the triple-lumen catheter is fixedly connected to an airbag tube. A water filling port is provided inside the triple-lumen catheter. An airbag is provided at one end of the triple-lumen catheter. The airbag tube and the water filling port cooperate with the airbag. A hard valve is provided at one end of the airbag tube.

[0015] Preferably, a one-way valve is provided at one end of the triple-lumen catheter. The one-way valve cooperates with the irrigation port. An urine inlet is provided at one end of the triple-lumen catheter. The urine inlet cooperates with the urine outlet.

[0016] The technical effects and advantages of this application are as follows:

[0017] 1. Compared with the prior art, for this controllable catheter, through the control mechanism, by pressing the connecting rod, the position of the urine outlet hole on the slider and the opening of the urine outlet tube is controlled by using the convex head, the clamping head and the conical head, so that the urine outlet tube can be opened or closed, and urine can be stored in the triple-lumen catheter and the urine outlet tube. When some patients with catheters go out, they do not need to assemble a urine bag and can directly go to the toilet to urinate, thus reducing their social shame in life. At the same time, by moving the limiting block through the connecting block, the limiting block can block the lower part of the urine outlet hole, thereby controlling the urine flow rate for urination.

[0018] 2. Compared with the prior art, for this controllable catheter, through the adjustment mechanism, according to the patient's tolerance of bladder irrigation, the rotating plate is adjusted so that the rotating plate can block the irrigation hole, thereby adjusting the flow rate of the irrigation hole and further adjusting the flow rate of bladder irrigation to be suitable for different patients and avoiding urine leakage caused by too strong a flow rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall structural schematic diagram of this application;

[0020] Figure 2 is the structural schematic diagram of the cooperation between the urine outlet and the urine inlet of this application;

[0021] Figure 3 is the structural schematic diagram of the control mechanism of this application;

[0022] Figure 4 is the structural schematic diagram of the cooperation between the connection shell and the connecting rod of this application;

[0023] Figure 5 is the structural schematic diagram of the cooperation between the slider and the urine outlet hole of this application;

[0024] Figure 6 is the structural schematic diagram of the cooperation between the connection shell and the connection head of this application;

[0025] Figure 7 is the structural schematic diagram of the cooperation between the connection head and the internal thread groove of this application;

[0026] Figure 8 Schematic structural diagram of the adjustment mechanism of the present application;

[0027] Figure 9 Schematic structural diagram of the connection sleeve and the flushing hole of the present application in cooperation;

[0028] Figure 10 Schematic structural diagram of the external thread head and the protective cover of the present application in cooperation;

[0029] Figure 11 For the present application Figure 8 Enlarged schematic diagram of A in

[0030] Reference numerals are: 1, three - cavity urinary catheter; 2, urine outlet tube; 3, urine outlet; 4, flushing tube; 5, flushing port; 6, control mechanism; 601, connection shell; 602, connecting rod; 603, slider; 604, urine outlet hole; 605, sealing gasket; 606, convex head; 607, light spring; 608, chuck; 609, chute; 610, sliding rod; 611, tapered head; 612, first spring; 613, connecting plate; 614, second spring; 615, limiting groove; 616, limiting block; 617, connecting block; 7, adjustment mechanism; 701, connection sleeve; 702, flushing hole; 703, spring groove; 704, third spring; 705, retaining pin; 706, rotating plate; 707, card slot; 8, connecting head; 9, internal thread groove; 10, sealing ring; 11, external thread head; 12, protective cover; 13, airbag tube; 14, water filling port; 15, airbag; 16, one - way valve; 17, hard valve; 18, urine inlet. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0032] Embodiment 1

[0033] As Figures 1 to 11A controllable urinary catheter shown in the figure includes a triple-lumen urinary catheter 1. A urine outlet tube 2 and a flushing tube 4 are fixedly connected to the bottom of the triple-lumen urinary catheter 1. The triple-lumen urinary catheter 1 and the flushing tube 4 are made of transparent silicone rubber, and it can be seen through the transparent triple-lumen urinary catheter 1 and the flushing tube 4 whether there is urine to be discharged. Urine outlet openings 3 and flushing openings 5 are formed in the inner wall of the triple-lumen urinary catheter 1. The urine outlet tube 2 is matched with the urine outlet opening 3 so that urine can be discharged through the urine outlet opening 3 and the urine outlet tube 2. The flushing tube 4 is matched with the flushing opening 5 and is used to discharge the flushing liquid into the bladder. A control mechanism 6 for controlling the urine outflow rate and switch is provided at one end of the urine outlet tube 2, which can close the urine outlet tube 2 and at the same time control the urine outflow rate. An adjusting mechanism 7 for controlling the flushing rate is provided at one end of the flushing tube 4, and the flushing rate of the bladder can be adjusted by rotation.

[0034] Embodiment 2

[0035] Based on Embodiment 1, the solution in Embodiment 1 is further refined and introduced in combination with the following specific working methods, as Figures 1 to 11 shown, and the details are described below:

[0036] As a preferred embodiment, the control mechanism 6 includes a connecting shell 601, a connecting rod 602, a slider 603, a urine outlet hole 604, a sealing gasket 605, a convex head 606, a light spring 607, a chuck 608, a chute 609, a sliding rod 610, a tapered head 611, a first spring 612, a connecting plate 613, a second spring 614, a limiting groove 615, a limiting block 616 and a connecting block 617. One end of the urine outlet tube 2 is fixedly connected with the connecting shell 601. The inner wall of the connecting shell 601 is slidably connected with the connecting rod 602, the slider 603, the convex head 606 and the chuck 608. The surface of the connecting rod 602 is fixedly connected with the slider 603. The surface of the slider 603 is provided with the urine outlet hole 604. A sealing gasket 605 is arranged on the top of the slider 603. One end of the connecting rod 602 is fixedly connected with the convex head 606. A light spring 607 is arranged inside one side of the convex head 606. One end of the light spring 607 is fixedly connected with the chuck 608, and the other end is fixedly connected with the connecting plate 613. The chuck 608 is slidably connected to the surface of the connecting rod 602. One side of the convex head 606 is matched with one side of the chuck 608. A chute 609 is arranged inside the connecting shell 601. The inner wall of the chute 609 is slidably connected with the sliding rod 610. One end of the sliding rod 610 is fixedly connected with the tapered head 611. The surface of the sliding rod 610 is sleeved with the first spring 612. One end of the first spring 612 is fixedly connected with the connecting shell 601, and the other end is fixedly connected with the tapered head 611. The surface of one end of the connecting rod 602 is sleeved with the second spring 614. One end of the second spring 614 is fixedly connected with the connecting shell 601, and the other end is fixedly connected with the connecting plate 613. A limiting groove 615 is arranged at the bottom of the connecting shell 601. The inner wall of the limiting groove 615 is slidably connected with the limiting block 616. One end of the limiting block 616 is fixedly connected with the connecting block 617. When it is necessary to open the urine outlet tube 2, by pressing the connecting plate 613, the connecting plate 613 compresses the second spring 614, so that the connecting rod 602 moves forward through the connecting plate 613. At this time, the connecting rod 602 can drive the slider 603 and the convex head 606 to move forward. When the convex head 606 moves forward, it will drive the tapered head 611 to move upward, so that the tapered head 611 drives the sliding rod 610 to move in the chute 609, and at the same time, it will compress the first spring 612. When the position is appropriate, release the connecting plate 613, and the first spring 612 resets, pushing the tapered head 611 back to its original position, so that the tapered head 611 can block the convex head 606, avoiding that when the connecting plate 613 is released, the second spring 614 resets and drives the connecting rod 602 to move backward. At this time, the urine outlet hole 604 on the slider 603 is aligned with the opening on the urine outlet tube 2, so that urine is discharged through the urine outlet hole 604. At the same time, the connecting block 617 drives the limiting block 616 to move in the limiting groove 615, so that the limiting block 616 can block the lower part of the urine outlet hole 604, thereby controlling the flow rate of the urine outlet hole 604 and controlling the urine flow rate. When it is necessary to close the urine outlet tube 2, press the connecting plate 613 again,The connecting rod 602 drives the chuck 608 to move forward through the slider 603. At this time, the surface of the chuck 608 drives the conical head 611 to move upward, so that the conical head 611 moves down to the rear of the chuck 608 through the first spring 612, and the connecting plate 613 is released. The second spring 614 is reset, driving the connecting rod 602 to move backward. At this time, the conical head 611 will produce a certain obstruction to the chuck 608. When the connecting rod 602 moves back to a certain position, the chuck 608 will squeeze the light spring 607 and insert it into the convex head 606, and drive the chuck 608 to move backward through the convex head 606. At this time, the rear end surface of the chuck 608 The cone head 611 will be driven to move upward, so that the cone head 611 moves down to the front of the convex head 606 through the first spring 612, and the light spring 607 is reset, driving the clamp 608 to move to the original position, so that the sealing pad 605 on the slider 603 can block the hole on the urine outlet tube 2, so that the urine can be blocked in the urine outlet tube 2 and the three-lumen urinary catheter 1, so that it will not flow out from the connector 8, and then the urine can be stored in the three-lumen urinary catheter 1 and the urine outlet tube 2, so that some patients who live with urinary catheters do not need to equip themselves with urine bags when going out, and can go directly to the toilet to urinate, thereby reducing their social shame in life.

[0037] As a preferred embodiment, the inner wall size of the limit groove 615 is consistent with the outer wall size of the limit block 616. When the limit block 616 slides inside the limit groove 615, the limit groove 615 can limit the sliding of the limit block 616 to prevent the limit block 616 from shaking inside the limit groove 615.

[0038] As a preferred embodiment, the inner wall of the limiting groove 615 and the outer wall of the limiting block 616 are provided with anti-slip pads, so that the limiting block 616 is not easily offset after sliding to a suitable position.

[0039] As a preferred embodiment, a connecting head 8 is fixedly connected to the bottom of the connecting shell 601, an inner thread groove 9 is provided on the inner wall of the connecting head 8, and a sealing ring 10 is provided inside the connecting head 8, so that one end of the urine bag can be threadedly connected to the connecting head 8, so that the fixation of the urine bag is more stable. At the same time, the sealing ring 10 can prevent urine from leaking and contaminating the sterile gloves.

[0040] As a preferred embodiment, the adjusting mechanism 7 includes a connecting sleeve 701, a flushing hole 702, a spring groove 703, a third spring 704, a retaining pin 705, a rotating plate 706 and a card slot 707. One end of the flushing tube 4 is fixedly connected with the connecting sleeve 701. The surface of the connecting sleeve 701 is provided with the flushing hole 702. One end of the flushing tube 4 is matched with the flushing hole 702. The inside of the connecting sleeve 701 is provided with the spring groove 703. The third spring 704 is arranged inside the spring groove 703. One end of the third spring 704 is fixedly connected with the connecting sleeve 701, and the other end is fixedly connected with the retaining pin 705. The rotating plate 706 is rotatably connected inside the connecting sleeve 701. Multiple groups of card slots 707 are arranged on the surface of the rotating plate 706. One end of the retaining pin 705 is matched with the card slot 707. When it is necessary to flush the bladder, unscrew the protective cover 12, connect one end of the connecting sleeve 701 to the infusion set. According to the patient's tolerance of bladder irrigation, adjust the rotating plate 706. At this time, the surface of the rotating plate 706 will squeeze the retaining pin 705 and the third spring 704. When the position is appropriate, the third spring 704 resets, so that one end of the retaining pin 705 is inserted into the card slot 707. According to the different positions where the retaining pin 705 is inserted into the card slot 707, the rotating plate 706 has slightly different blockages of the flushing hole 702, so that the flow rate of the flushing hole 702 can be adjusted, and then the flow rate of bladder irrigation can be adjusted to be applicable to different patients, avoiding urine leakage caused by too strong a flow rate.

[0041] As a preferred embodiment, multiple groups of convex blocks are arranged on the surface of the rotating plate 706, which can increase the friction between the rotating plate 706 and the hand, so that the rotating plate 706 can be adjusted better.

[0042] As a preferred embodiment, an external thread head 11 is arranged at one end of the connecting sleeve 701. The protective cover 12 is threadedly connected to one end of the connecting sleeve 701, so that the protective cover 12 can be threadedly connected to the connecting sleeve 701 through the external thread head 11, and the one end of the connecting sleeve 701 is protected to avoid affecting the connection with the infusion set when flushing is required.

[0043] As a preferred embodiment, an airbag tube 13 is fixedly connected to one end of the triple-lumen catheter 1. A water filling port 14 is arranged inside the triple-lumen catheter 1. An airbag 15 is arranged at one end of the triple-lumen catheter 1. The airbag tube 13 and the water filling port 14 are matched with the airbag 15. A hard valve 17 is arranged at one end of the airbag tube 13. Insert the triple-lumen catheter 1 into the bladder, connect one end of the hard valve 17 to the injection syringe, and inject sterile normal saline into the airbag tube 13 and the water filling port 14 through the injection syringe, so that the airbag 15 can be inflated, and then one end of the triple-lumen catheter 1 will not fall out of the bladder.

[0044] As a preferred embodiment, one end of the three - lumen urinary catheter 1 is provided with a one - way valve 16, and the one - way valve 16 cooperates with the irrigation port 5. When bladder irrigation is performed, the irrigation fluid can be discharged from the irrigation port 5 through the one - way valve 16. At the same time, when not in use, urine can be prevented from entering the irrigation port 5. An urine inlet 18 is provided at one end of the three - lumen urinary catheter 1, and the urine inlet 18 cooperates with the urine outlet 3, so that the urine in the bladder can enter the urine outlet 3 through the urine inlet 18, so as to be directly discharged or discharged into a urine bag through the urine outlet tube 2 and the control mechanism 6 subsequently.

[0045] The working process of this application is as follows: First, insert the triple-lumen catheter 1 into the bladder, connect one end of the hard valve 17 to the water injection syringe, and inject sterile normal saline into the balloon tube 13 and the water filling port 14 through the water injection syringe to inflate the balloon 15, so that one end of the triple-lumen catheter 1 will not fall out of the bladder. When it is necessary to open the urine outlet tube 2, press the connecting plate 613. The connecting plate 613 squeezes the second spring 614, causing the connecting rod 602 to move forward through the connecting plate 613. At this time, the connecting rod 602 can drive the slider 603 and the convex head 606 to move forward. When the convex head 606 moves forward, it will drive the conical head 611 to move upward, causing the conical head 611 to drive the slide bar 610 to move in the chute 609, and at the same time, it will squeeze the first spring 612. After the position is appropriate, release the connecting plate 613, and the first spring 612 resets, pushing the conical head 611 back to its original position, so that the conical head 611 can block the convex head 606, preventing the second spring 614 from resetting when the connecting plate 613 is released and driving the connecting rod 602 to move backward. At this time, the urine outlet hole 604 on the slider 603 is aligned with the opening on the urine outlet tube 2, allowing urine to be discharged through the urine outlet hole 604. At the same time, the connecting block 617 drives the limiting block 616 to move in the limiting groove 615, so that the limiting block 616 can block the lower part of the urine outlet hole 604, thereby controlling the flow rate of the urine outlet hole 604 and controlling the urine flow rate. When it is necessary to close the urine outlet tube 2, press the connecting plate 613 again. The connecting rod 602 drives the chuck 608 to move forward through the slider 603. At this time, the surface of the chuck 608 will drive the conical head 611 to move upward, causing the conical head 611 to move downward behind the chuck 608 through the first spring 612. Release the connecting plate 613, and the second spring 614 resets, driving the connecting rod 602 to move backward. At this time, the conical head 611 will exert a certain block on the chuck 608. When the connecting rod 602 moves backward a certain position, the chuck 608 will squeeze the light spring 607 and insert it into the convex head 606, driving the chuck 608 to move backward through the convex head 606. At this time, the rear end surface of the chuck 608 will drive the conical head 611 to move upward, causing the conical head 611 to move downward in front of the convex head 606 through the first spring 612. At the same time, the light spring 607 resets, driving the chuck 608 to move back to its original position, so that the sealing gasket 605 on the slider 603 can block the hole on the urine outlet tube 2, preventing urine from flowing out of the connection head 8, and storing urine in the triple-lumen catheter 1 and the urine outlet tube 2. This enables some patients with catheters to go directly to the toilet to urinate when going out without having to assemble a urine bag, thereby reducing their social shame in daily life. When it is necessary to flush the bladder, unscrew the protective cover 12, connect one end of the connecting sleeve 701 to the infusion set, and adjust the rotating plate 706 according to the patient's bladder flushing tolerance. At this time, the surface of the rotating plate 706 will squeeze the retaining pin 705 and the third spring 704,When in the appropriate position, the third spring 704 resets, causing one end of the detent 705 to insert into the card slot 707. Depending on the different positions where the detent 705 inserts into the card slot 707, the rotation plate 706 has slightly different blockages of the flushing hole 702, enabling it to adjust the flow rate of the flushing hole 702, and thus adjust the flow rate of bladder irrigation to be suitable for different patients, avoiding urine leakage caused by too strong a flow rate. The above is the working principle of this controllable catheter.

Claims

1. A controllable urinary catheter, comprising a three-lumen urinary catheter (1), wherein a urine outlet tube (2) and a flushing tube (4) are fixedly connected to the bottom of the three-lumen urinary catheter (1), wherein the three-lumen urinary catheter (1) and the flushing tube (4) are made of transparent silicone rubber, wherein the inner wall of the three-lumen urinary catheter (1) is provided with a urine outlet (3) and a flushing port (5), wherein the urine outlet tube (2) cooperates with the urine outlet (3), and wherein the flushing tube (4) cooperates with the flushing port (5), wherein: One end of the urine discharge tube (2) is provided with a control mechanism (6) for controlling the urine discharge flow rate and a switch, and one end of the flushing tube (4) is provided with an adjustment mechanism (7) for controlling the flushing flow rate.

2. A controllable urinary catheter according to claim 1, characterized in that: The control mechanism (6) comprises a connecting shell (601), a connecting rod (602), a slider (603), a urine outlet (604), a sealing pad (605), a convex head (606), a light spring (607), a clamp (608), a slide groove (609), a slide rod (610), a conical head (611), a first spring (612), a connecting plate (613), a second spring (614), a limiting groove (615), a limiting block (616) and a connecting block (617). One end of the urine outlet tube (2) is fixedly connected to the connecting shell (601). The inner wall of the connecting shell (601) is slidably connected with a connecting rod (602), a slider (603), a convex head (606) and a clamp (608); the surface of the connecting rod (602) is fixedly connected with the slider (603); the surface of the slider (603) is provided with a urine outlet (604); the top of the slider (603) is provided with a sealing gasket (605); one end of the connecting rod (602) is fixedly connected with the convex head (606); a light spring (607) is provided inside one side of the convex head (606); one side of the light spring (607) One end of the connecting rod (602) is fixedly connected with a chuck (608), and the other end is fixedly connected with a connecting plate (613). The surface of the connecting rod (602) is slidably connected with the chuck (608). One side of the convex head (606) cooperates with one side of the chuck (608). A sliding groove (609) is provided inside the connecting shell (601). The inner wall of the sliding groove (609) is slidably connected with a sliding rod (610). One end of the sliding rod (610) is fixedly connected with a conical head (611). The surface of the sliding rod (610) is sleeved with a first spring (612). The first spring One end of (612) is fixedly connected to a connecting shell (601), and the other end is fixedly connected to a conical head (611); a second spring (614) is sleeved on the surface of one end of the connecting rod (602); one end of the second spring (614) is fixedly connected to the connecting shell (601), and the other end is fixedly connected to a connecting plate (613); a limiting groove (615) is provided at the bottom of the connecting shell (601); the inner wall of the limiting groove (615) is slidably connected to a limiting block (616); one end of the limiting block (616) is fixedly connected to a connecting block (617).

3. A controllable urinary catheter according to claim 2, characterized in that: The inner wall size of the limiting groove (615) matches the outer wall size of the limiting block (616).

4. A controllable urinary catheter according to claim 2, characterized in that: The inner wall of the limiting groove (615) and the outer wall of the limiting block (616) are provided with anti-slip pads.

5. A controllable urinary catheter according to claim 2, characterized in that: A connecting head (8) is fixedly connected to the bottom of the connecting shell (601), an inner thread groove (9) is provided on the inner wall of the connecting head (8), and a sealing ring (10) is provided inside the connecting head (8).

6. A controllable urinary catheter according to claim 1, characterized in that: The adjusting mechanism (7) comprises a connecting sleeve (701), a flushing hole (702), a spring slot (703), a third spring (704), a latch (705), a rotating plate (706) and a latch slot (707); one end of the flushing tube (4) is fixedly connected to the connecting sleeve (701); a flushing hole (702) is provided on the surface of the connecting sleeve (701); one end of the flushing tube (4) matches the flushing hole (702); the inner surface of the connecting sleeve (701) is fixedly connected to the flushing hole (702); A spring groove (703) is provided in the part, a third spring (704) is provided inside the spring groove (703), one end of the third spring (704) is fixedly connected to a connecting sleeve (701), and the other end is fixedly connected to a bayonet (705), the interior of the connecting sleeve (701) is rotatably connected to a rotating plate (706), a surface of the rotating plate (706) is provided with a plurality of bayonet grooves (707), and one end of the bayonet pin (705) is matched with the bayonet groove (707).

7. A controllable urinary catheter according to claim 6, characterized in that: The surface of the rotating plate (706) is provided with a plurality of groups of protrusions.

8. The controllable urinary catheter according to claim 6, characterized in that: One end of the connecting sleeve (701) is provided with an external thread head (11), and one end of the connecting sleeve (701) is threadedly connected to a protective cover (12).

9. The steerable urinary catheter according to claim 1, characterized in that: One end of the three-lumen urinary catheter (1) is fixedly connected to an airbag tube (13), a water filling port (14) is provided inside the three-lumen urinary catheter (1), an airbag (15) is provided at one end of the three-lumen urinary catheter (1), the airbag tube (13) and the water filling port (14) cooperate with the airbag (15), and a hard valve (17) is provided at one end of the airbag tube (13).

10. The steerable urinary catheter according to claim 1, characterized in that: One end of the three-lumen urinary catheter (1) is provided with a one-way valve (16), and the one-way valve (16) cooperates with the flushing port (5). One end of the three-lumen urinary catheter (1) is provided with a urine inlet (18), and the urine inlet (18) cooperates with the urine outlet (3).

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