CN221713080U - A medical three-way valve, a preoperative flushing system for urethral reconstruction, and a bladder flushing system - Google Patents

Abstract

The utility model provides a medical three-way valve, which comprises a valve body, a valve core and a steering handle, wherein three connecting pipes with an included angle of 90 degrees are horizontally arranged on the outer side of the valve body, three liquid passing holes with an included angle of 90 degrees are horizontally arranged on the valve core, and the three liquid passing holes are mutually communicated; the other ends of the two connecting pipes are fixedly connected with a first pagoda joint and a first connecting joint respectively, the first connecting joint is cylindrical or tapered cylindrical, and the other end of the other connecting pipe is connected with a positive pressure joint; the medical three-way valve is used for preparing the environment in the bladder before the urethra reconstruction operation or continuously flushing the bladder, can be directly connected with a catheter, a drainage bag, a flushing fluid bag, an injector and the like, does not need temporary modification during use, does not need repeated separation of a connecting port during flushing, only needs to switch different passages of the medical three-way valve, ensures that a flushing system is in a closed state, can meet the sterile requirement, and reduces the risk of infection of patients to a certain extent.

Description

A medical three-way valve, a preoperative flushing system for urethral reconstruction, and a bladder flushing system

Technical Field

The utility model relates to the technical field of medical devices, in particular to a medical three-way valve and a flushing system for performing preoperative bladder fistula flushing or continuous bladder flushing in urethra reconstruction using the medical device including the medical three-way valve.

Background Art

Urethral reconstruction is a surgical procedure for patients with urethral obstruction, which is used to restore or reconstruct the anatomy and function of the lower urinary tract. Since a catheter cannot be inserted due to urethral obstruction, a suprapubic cystostomy can only be performed, and the urine can be drained to the outside of the body through the cystostomy tube. Before urethral reconstruction, the bladder environment of patients with cystostomy tubes needs to be prepared, that is, diluted complex iodine is dripped through the cystostomy tube to flush the bladder for disinfection, sterilization and anti-infection treatment, which is a necessary treatment to prevent postoperative septic shock; bladder flushing generally refers to continuous bladder flushing, which is used in cases of prostate transurethral resection, bladder tumor surgery, conservative treatment of bladder or renal bleeding, severe infection, etc., using a flushing infusion set to inject flushing fluids such as saline into the bladder, and then use the siphon principle to drain the injected fluid out, which can clear blood clots, mucus, bacteria and other foreign matter in the bladder, and keep urine drainage unobstructed.

At present, ordinary three-lumen rubber catheters are used clinically for continuous bladder irrigation. Since the irrigation infusion set cannot be directly connected to the catheter, it is necessary to cut a collection bag of a newly opened drainage bag, retain the connecting joint and the drainage catheter, and then connect the connecting joint to the catheter, and the drainage catheter is connected to the irrigation infusion set; ordinary double-lumen rubber catheters are used clinically for diluted complex iodine bladder irrigation. When performing diluted complex iodine bladder irrigation, the number of irrigation drops also needs to be adjusted (adjusted according to the patient's tolerance, generally 40-60 drops/minute). If the patient has bladder distension and pain and needs to urinate, the connecting joint and the catheter need to be separated, and the urine The tube is connected to the drainage bag to empty the urine, and then disinfected and reconnected to the connecting joint and the catheter for flushing; during continuous bladder irrigation, if a large number of blood clots accumulate in the patient's bladder, the catheter is easily blocked during the flushing process, and the blood clots in the catheter need to be sucked out with a syringe. Due to the lack of special medical equipment, we can only cut off a new drainage bag's collection bag, retain the connecting joint and the drainage catheter, connect the drainage catheter to the syringe, separate the flushing infusion set and the catheter, connect the connecting joint to the catheter, suck out the blood clots through the positive pressure of the syringe, and then disinfect and reconnect the flushing infusion set and the catheter for flushing.

The above two flushing methods use many medical devices during the operation process, and they also need temporary modification. In addition, the connection ports need to be separated multiple times during the flushing process, which cannot ensure that the sterility requirements are fully met, and the risk of infection for patients is increased to a certain extent. Therefore, there is an urgent need for a medical three-way valve specially used for pre-urethral reconstruction flushing or continuous bladder flushing to solve the above problems.

Utility Model Content

In order to solve the above problems, the utility model patent provides a medical three-way valve specially used for preparing the bladder environment or continuous bladder flushing for patients with cystostomy tubes before urethral reconstruction surgery. The medical three-way valve can be directly connected to medical devices such as flushing infusion sets, catheters, drainage bags and syringes. It does not require temporary modification. Different flushing operations can be achieved by switching different passages of the medical three-way valve. There is no need to repeatedly disconnect the connection port, which reduces the risk of infection in patients to a certain extent.

The utility model adopts the following technical scheme: a medical three-way valve, comprising a valve body and a valve core arranged in the valve body and capable of horizontal rotation, the top of the valve core extending out of the valve body and fixedly connected with a steering handle, three connecting pipes with an included angle of 90 degrees are horizontally arranged on the outer side of the valve body, and three liquid holes with an included angle of 90 degrees are horizontally arranged on the valve core and the three liquid holes are interconnected;

The other ends of two of the connecting pipes are respectively fixedly connected with a first pagoda joint and a first connecting joint, the first connecting joint is cylindrical or cylindrical with a taper, and the other end of the other connecting pipe is fixedly connected with a positive pressure joint, or a flange is provided at the edge of the port of the other connecting pipe, and a thread is provided on the outer circumferential surface of the flange, and the flange can be detachably connected to the positive pressure joint through the thread.

Furthermore, three passage indicator parts with an included angle of 90 degrees are provided on the steering handle, the positions of the three passage indicator parts correspond to the positions of the three liquid holes, and the top surface of the passage indicator part is marked with an arrow indicating the direction of the passage.

Furthermore, the first pagoda joint includes a plurality of tapered clamping parts arranged in a stepped manner, and the tapers of the plurality of tapered clamping parts gradually increase from the outside to the inside.

Furthermore, a preoperative flushing system for urethral reconstruction includes a medical three-way valve, a double-lumen urinary catheter, a liquid collection component and a first flushing component; the double-lumen urinary catheter includes a main catheter, the front end of the main catheter is a bladder insertion end, and the rear end is a connecting end, the bladder insertion end is provided with a plurality of through holes communicating with the tube cavity of the main catheter, a balloon is arranged outside the bladder insertion end, a filling joint is arranged on one side of the connecting end, a filling channel connecting the balloon and the filling joint is arranged in the tube wall of the main catheter, and the first pagoda joint is sealed and connected to the connecting end; the liquid collection component is sealed and connected to the first connecting joint, which is used to collect liquid discharged from the double-lumen urinary catheter; the first flushing component is sealed and connected to the positive pressure joint, which is used to inject diluted complex iodine into the bladder through the double-lumen urinary catheter.

Furthermore, a bladder flushing system comprises a medical three-way valve, a three-lumen urinary catheter, a liquid collecting component and a second flushing component; the three-lumen urinary catheter comprises a main catheter, the front end of the main catheter is a bladder insertion end, the rear end is a connecting end, the bladder insertion end is provided with a plurality of through holes communicating with the tube cavity of the main catheter, a balloon is arranged outside the bladder insertion end, a filling joint and a liquid collecting joint are arranged on both sides of the connecting end, a filling channel connecting the balloon and the filling joint is arranged in the tube wall of the main catheter, the first pagoda joint is sealedly connected to the connecting end, the liquid collecting component is sealedly connected to the liquid collecting joint, and is used to collect liquid discharged from the three-lumen urinary catheter; the second flushing component is sealedly connected to the first connecting joint, and is used to inject flushing liquid into the bladder through the three-lumen urinary catheter.

Furthermore, the liquid collecting assembly includes a second pagoda joint, a liquid collecting tube, a closed tube clamp and a liquid collecting bag. The liquid collecting tube is connected between the second pagoda joint and the liquid collecting bag, and the closed tube clamp is installed on the liquid collecting tube. A drain switch is also provided at the bottom of the liquid collecting bag. The second pagoda joint includes a plurality of conical clamping portions arranged in a stepped manner, and the taper of the plurality of conical clamping portions gradually increases from the outside to the inside. The second pagoda joint is sealed and connected to the first connecting joint or the liquid collecting joint.

Furthermore, the first flushing component includes a first flushing liquid storage bag and a first flushing tube, wherein the first flushing liquid storage bag stores diluted complex iodine, one end of the first flushing tube is connected to the first flushing liquid storage bag, and the other end is fixedly connected to an external conical joint, which can be detachably and sealedly connected to the positive pressure joint through the external conical joint, and a drip pot and a first flow control switch are provided on the first flushing tube, and the drip pot is arranged between the first flushing liquid storage bag and the first flow control switch.

Furthermore, the second flushing component includes a second flushing liquid storage bag and a second flushing tube. The second flushing liquid storage bag stores flushing liquid. One end of the second flushing tube is connected to the second flushing liquid storage bag, and the other end is fixedly connected to a third pagoda joint, which can be detachably and sealedly connected to the first connecting joint through the third pagoda joint. A second flow control switch is provided on the second flushing tube; the third pagoda joint includes a plurality of conical clamping parts arranged in a stepped manner, and the taper of the plurality of conical clamping parts gradually increases from the outside to the inside.

Furthermore, the bladder flushing system also includes a screw-mouth syringe that can be detachably connected to the positive pressure connector or flange, and the screw-mouth syringe is used to clear the three-lumen urinary catheter.

The medical three-way valve in the utility model patent is specially used for preparing the bladder environment or continuous bladder flushing for patients with cystostomy tubes before urethral reconstruction surgery. The medical three-way valve can be directly connected to medical devices such as catheters, drainage bags, flushing liquid bags, syringes, etc., and no temporary modification is required when in use. Most importantly, there is no need to separate the connection ports multiple times during the flushing process. It is only necessary to rotate the steering handle of the medical three-way valve to switch different pathways, so that the flushing system is in a closed state, which can meet the sterility requirements and reduce the risk of infection in patients to a certain extent.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of the overall structure of a three-way valve for Chinese medicine of the present invention.

FIG2 is a schematic structural diagram of the three-way valve for traditional Chinese medicine of the present invention after the valve core 2 is removed.

FIG3 is a schematic structural diagram of the valve core 2 and the steering handle 3 in the utility model.

FIG4 is a top view of the three-way valve for Chinese medicine of the present invention and a schematic diagram of the detachable connection of the positive pressure connector 6 .

FIG5 is a schematic diagram of the planar structure of the preoperative flushing system for urethral reconstruction in the present invention.

FIG6 is a planar structural schematic diagram of the bladder flushing system of the present invention.

FIG. 7 is a schematic diagram of the planar structure of the liquid collecting assembly 8 of the present invention.

FIG8 is a schematic diagram of the planar structure of the second flushing assembly 10 of the present invention.

FIG9 is a second schematic diagram of the planar structure of the bladder flushing system of the present invention.

The description of the reference numerals is shown in the following table:

Marking numbers Tag Name Marking numbers Tag Name 1 Valve body 1 804 Liquid Collection Bag 804 101 Connecting pipe 101 9 First flushing assembly 9 102 Flange 102 901 First flushing liquid storage bag 901 2 Spool 2 902 First flushing pipe 902 201 Liquid hole 201 903 Dripping Pot 903 3 Steering handle 3 904 First flow control switch 904 301 Path indication unit 301 905 External cone connector 905 4 First Pagoda Joint 4 10 Second flushing assembly 10 5 First connection joint 5 1001 Second flushing liquid storage bag 1001 6 Positive pressure connector 6 1002 Second flushing pipe 1002 7 Double lumen catheter7 1003 The second flow control switch 1003 8 Liquid collection component 8 1004 The third pagoda joint 1004 801 Second pagoda joint 801 11 Triple Lumen Catheter11 802 Collecting pipe 802 12 Screw-on syringe 12 803 Closed tube clamp 803

DETAILED DESCRIPTION

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. The content of the utility model is further described below in conjunction with the drawings:

Example 1

Referring to Figures 1-4 of the specification, a medical three-way valve includes a valve body 1 and a valve core 2 arranged in the valve body 1 and capable of horizontal rotation. The top of the valve core 2 extends out of the valve body 1 and is fixedly connected to a steering handle 3. Three connecting tubes 101 with an angle of 90 degrees are horizontally arranged on the outer side of the valve body 1. The connecting tubes 101 are connected to the inner cavity of the valve body 1. Three liquid holes 201 with an angle of 90 degrees are horizontally arranged on the valve core 2 and are interconnected. By rotating the steering handle 3, the liquid holes 201 can be used to switch different passages of the medical three-way valve.

The other ends of the two connecting pipes 101 are respectively fixedly connected with the first pagoda joint 4 and the first connecting joint 5, the first pagoda joint 4 includes a plurality of conical clamping parts arranged in a stepped manner, and the taper of the plurality of conical clamping parts gradually increases from the outside to the inside; specifically, the outer diameter dimensions in the middle of the plurality of conical clamping parts are 3mm, 4mm, 7mm, 8mm, 12mm from the outside to the inside, so that the first pagoda joint 4 can be adapted to catheters of different specifications for sealed connection; the first connecting joint 5 is cylindrical or cylindrical with a taper and can be sealed and connected to the pagoda joint, the pagoda joint can be a pagoda joint with the same size as the first pagoda joint 4, and the first connecting joint 5 can be a rubber hose or a silicone hose.

The other end of the other connecting tube 101 is fixedly connected to the positive pressure connector 6, or, referring to FIG4, a flange 102 is provided on the edge of the port of the other connecting tube 101, and a thread is provided on the outer circumferential surface of the flange 102, and the flange 102 can be detachably connected to the positive pressure connector 6 through the thread; it should be noted that: the positive pressure connector 6 commonly used in hospitals can be used, so its structure is not described in detail.

Referring to Figure 1, three passage indicator parts 301 with an angle of 90 degrees are provided on the steering handle 3. The positions of the three passage indicator parts 301 correspond to the positions of the three liquid holes 201. The top surface of the passage indicator part 301 is marked with an arrow indicating the direction of the passage. The positions of the three liquid holes 201 can be intuitively observed through the passage indicator part 301 and the arrow, which is convenient for quickly switching the passage of the medical three-way valve.

Example 2

Based on Example 1 and with reference to Figure 5, a preoperative cystostomy flushing system for urethral reconstruction surgery includes a medical three-way valve, a double-lumen urinary catheter 7, a liquid collection component 8 and a first flushing component 9; the double-lumen urinary catheter 7 includes a main catheter, the front end of the main catheter is a bladder insertion end, and the rear end is a connecting end, the bladder insertion end is provided with a plurality of through holes communicating with the tube cavity of the main catheter, the flushing liquid can enter the bladder through the through holes, and the liquid in the bladder can enter the main catheter through the through holes for drainage, a balloon is arranged outside the bladder insertion end, a filling joint is arranged on one side of the connecting end, and a filling channel connecting the balloon and the filling joint is arranged in the tube wall of the main catheter; air or liquid can enter the balloon through the filling joint and the filling channel in turn, so that the balloon is positioned at the outlet of the bladder neck after being filled to fix the main catheter; the connecting end of the main catheter is cylindrical or cylindrical with a taper, and the first pagoda joint 4 can be sealed and connected to the connecting end of the main catheter.

Referring to FIG. 5 , the first flushing assembly 9 includes a first flushing liquid storage bag 901 and a first flushing tube 902. The first flushing liquid storage bag 901 stores diluted complex iodine. One end of the first flushing tube 902 is connected to the first flushing liquid storage bag 901, and the other end is fixedly connected to an outer conical joint 905. The structure of the outer conical joint 905 is consistent with the joint connected to the infusion set extension tube or needle on the infusion set, so it is not repeated here. The outer conical joint 905 can be detachably sealed and connected to the positive pressure joint 6;

Since the number of flushing drops needs to be adjusted when diluting the complex iodine flushing (adjusted according to the patient's tolerance, generally 40-60 drops/minute), a drip pot 903 and a first flow control switch 904 are provided on the first flushing tube 902. The drip pot 903 is arranged between the first flushing liquid storage bag 901 and the first flow control switch 904. The first flow control switch 904 is used to control the liquid flow speed in the first flushing tube 902. The drip pot 903 is convenient for observing the number of drops of the liquid flow. The structure of the drip pot 903 and the first flow control switch 904 is consistent with that on the infusion set, so they are not repeated here. When diluting the complex iodine flushing, the diluted complex iodine in the first flushing liquid storage bag 901 passes through the first flushing tube 902, the drip pot 903, the first flushing tube 902, the positive pressure connector 6, the medical three-way valve, and the main catheter in sequence into the bladder.

7, the liquid collecting assembly 8 includes a second pagoda joint 801, a liquid collecting tube 802, a closed tube clamp 803 and a liquid collecting bag 804, the liquid collecting tube 802 is connected between the second pagoda joint 801 and the liquid collecting bag 804, the closed tube clamp 803 is installed on the liquid collecting tube 802, and a drain switch is also provided at the bottom of the liquid collecting bag 804, the drain switch is used to discharge the liquid in the liquid collecting bag 804, so that the liquid collecting bag 804 can continue to be used without replacement;

The second pagoda connector 801 includes a plurality of conical clamping parts arranged in a stepped manner, and the taper of the plurality of conical clamping parts gradually increases from the outside to the inside. Specifically, the outer diameters in the middle of the plurality of conical clamping parts are 3 mm, 4 mm, 7 mm, 8 mm, and 12 mm from the outside to the inside, respectively, so that the second pagoda connector 801 can be adapted to catheters of different specifications for sealed connection; the second pagoda connector 801 is sealedly connected to the first connecting connector 5; when the patient needs to urinate, the urine in the bladder and the diluted complex iodine pass through the main catheter, the medical three-way valve, the second pagoda connector 801, and the liquid collecting tube 802 in turn into the liquid collecting bag 804 for collection.

Since the diluted complex iodine is used for bladder irrigation disinfection, sterilization and anti-infection treatment intermittently, for example: 500-800 ml of diluted complex iodine is used for irrigation in the morning, and 500-800 ml of diluted complex iodine is used for irrigation in the afternoon. No irrigation is required at other times, so the first irrigation component 9 needs to be removed. Therefore, a positive pressure connector 6 is provided on the connecting pipe 101 connected to the first irrigation component 9. The positive pressure connector 6 can be in a closed state without any connector connected thereto to maintain a sterile state. When the diluted complex iodine is used for bladder irrigation disinfection, sterilization and anti-infection treatment next time, the positive pressure connector 6 can be connected to the first irrigation component 9 again after standardized disinfection, which can meet the sterility requirements and reduce the risk of infection in patients to a certain extent.

The method of using the cystostomy flushing system before urethral reconstruction in this embodiment is as follows: first, the bladder insertion end of the main catheter of the double-lumen urinary catheter 7 is placed into the patient's bladder and fixed with a balloon, and the medical three-way valve, the double-lumen urinary catheter 7, the liquid collection component 8 and the first flushing component 9 are properly sealed and connected;

When the diluted complex iodine is used for bladder flushing disinfection, sterilization and anti-infection treatment: the steering handle 3 is rotated to form a passage between the first connecting joint 5 and the positive pressure joint 6, the liquid flow speed in the first flushing tube 902 is adjusted by the first flow control switch 904, and the number of drops of the liquid flow can be observed by the drip pot 903 (adjusted according to the patient's tolerance, generally 40-60 drops/minute), and the diluted complex iodine can be used for bladder flushing disinfection, sterilization and anti-infection treatment;

When the patient needs to urinate: the first flushing tube 902 is clamped by the first flow control switch 904, and the steering handle 3 is rotated to form a passage between the first pagoda connector 4 and the first connecting connector 5, so that urination can be carried out;

After urination is completed, the above operation can be repeated to perform diluted complex iodine to flush the bladder for disinfection, sterilization and anti-infection treatment.

Example 3

Based on Example 1 and with reference to FIG6 , a bladder flushing system comprises a medical three-way valve, a three-lumen urinary catheter 11, a liquid collecting component 8 and a second flushing component 10; the three-lumen urinary catheter 11 comprises a main catheter, the front end of the main catheter is a bladder insertion end, and the rear end is a connecting end, the bladder insertion end is provided with a plurality of through holes communicating with the tube cavity of the main catheter, the flushing liquid can enter the bladder through the through holes, and the liquid in the bladder can enter the main catheter through the through holes for drainage, a balloon is arranged outside the bladder insertion end, a filling joint and a liquid collecting joint are arranged on both sides of the connecting end, a filling channel connecting the balloon and the filling joint is arranged in the tube wall of the main catheter, air or liquid can enter the balloon through the filling joint and the filling channel in turn, so that the balloon is positioned at the outlet of the bladder neck after being filled to fix the main catheter; the connecting end of the main catheter is cylindrical or cylindrical with a taper, and the first pagoda joint 4 can be sealed and connected to the connecting end of the main catheter.

Referring to FIG. 8 , the second flushing assembly 10 includes a second flushing liquid storage bag 1001 and a second flushing tube 1002. The second flushing liquid storage bag 1001 stores flushing liquid. One end of the second flushing tube 1002 is connected to the second flushing liquid storage bag 1001, and the other end is fixedly connected to a third pagoda connector 1004, which can be detachably sealed with the first connecting connector 5 through the third pagoda connector 1004. A second flow control switch 1003 is provided on the second flushing tube 1002 to control the liquid flow rate in the second flushing tube 1002. The third pagoda connector 1004 includes a plurality of conical clamping portions arranged in a stepped manner, and the taper of the plurality of conical clamping portions gradually increases from the outside to the inside. Specifically, the outer diameters in the middle of the plurality of conical clamping portions are 3 mm, 4 mm, 7 mm, 8 mm, and 12 mm from the outside to the inside, respectively, so that the third pagoda connector 1004 can be adapted to catheters of different specifications for sealed connection; specifically, the flushing fluid can be physiological saline, 2% sodium chloride solution, 3% sodium acetate solution, 5% sodium bicarbonate solution, 5% glucose solution, etc.

7, the liquid collecting assembly 8 includes a second pagoda joint 801, a liquid collecting tube 802, a closed tube clamp 803 and a liquid collecting bag 804, the liquid collecting tube 802 is connected between the second pagoda joint 801 and the liquid collecting bag 804, the closed tube clamp 803 is installed on the liquid collecting tube 802, and a drain switch is also provided at the bottom of the liquid collecting bag 804, the drain switch is used to discharge the liquid in the liquid collecting bag 804, so that the liquid collecting bag 804 can continue to be used without replacement;

The second pagoda connector 801 includes a plurality of conical clamping parts arranged in a stepped manner, and the taper of the plurality of conical clamping parts gradually increases from the outside to the inside. Specifically, the outer diameters in the middle of the plurality of conical clamping parts are 3 mm, 4 mm, 7 mm, 8 mm, and 12 mm from the outside to the inside, respectively, so that the second pagoda connector 801 can be adapted to catheters of different specifications for sealed connection; the second pagoda connector 801 is sealedly connected to the liquid collecting connector; when the patient needs to urinate, the urine in the bladder and the diluted complex iodine pass through the main catheter, the medical three-way valve, the second pagoda connector 801, and the liquid collecting tube 802 in turn into the liquid collecting bag 804 for collection.

9 , the bladder flushing system further comprises a screw-mouth syringe 12 detachably connected to the positive pressure connector 6 or the flange 102 , and the screw-mouth syringe 12 is used to clear the three-lumen urinary catheter 11 .

When the urinary catheter is unobstructed and continuous bladder irrigation is performed normally, referring to Figure 6, one of the connecting tubes 101 does not need to be connected to any connector, so in order to ensure sterility, a positive pressure connector 6 is used to connect to the connecting tube 101; when the urinary catheter is blocked (usually a blood clot) and the blood clot needs to be suctioned and unblocked, the screw-mouth syringe 12 can be directly connected to the positive pressure connector 6, or, after the positive pressure connector 6 is removed, the screw-mouth syringe 12 can be directly connected to the flange 102 to suction the blood clot. After the urinary catheter is unobstructed, the screw-mouth syringe 12 is removed and the positive pressure connector 6 can be reinstalled. The positive pressure connector 6 can be in a closed state without any connector connected to it, maintaining a sterile state, meeting the sterility requirements, and reducing the risk of infection in the patient to a certain extent.

The method of using the bladder flushing system in this embodiment is as follows: firstly, the bladder insertion end of the main catheter of the three-lumen urinary catheter 11 is placed into the patient's bladder and fixed with a balloon, and the medical three-way valve, the three-lumen urinary catheter 11, the liquid collection component 8 and the second flushing component 10 are properly sealed and connected;

When continuous bladder irrigation is performed: the steering handle 3 is rotated to form a passage between the first pagoda joint 4 and the first connecting joint 5, the liquid flow rate in the second irrigation tube 1002 is adjusted by the second flow control switch 1003, and the collecting tube 802 is clamped with the tube closing clamp 803, so that continuous bladder irrigation can be performed;

When the patient needs to urinate: rotate the steering handle 3 to form a circuit between the first pagoda connector 4 and the first connecting connector 5, open the tube clamp 803, and then urinate;

After urination is completed, the above operation can be repeated for continuous bladder irrigation;

When the urinary catheter is blocked by a blood clot: after removing the positive pressure connector 6, use a screw-on syringe to connect to the flange 102, rotate the steering handle 3 to form a passage between the first pagoda connector 4 and the connecting tube 101 provided with the flange 102, use the tube closing clamp 803 to clamp the liquid collecting tube 802, pull the handle of the screw-on syringe to suck out the blood clot in the urinary catheter, and when the urinary catheter is unblocked, repeat the above operation to perform continuous bladder flushing or urination operation.

Obviously, components can be modified and/or added to the above-mentioned medical three-way valve and the corresponding urethral reconstruction preoperative cystostomy flushing system, bladder flushing system and corresponding method without departing from the field and scope of the present invention.

It is also clear that although the present invention has described in detail the medical three-way valve and the corresponding cystostomy flushing system and bladder flushing system before urethra reconstruction surgery, the technicians in this field will certainly be able to obtain many other equivalent forms of medical three-way valves and corresponding cystostomy flushing systems and bladder flushing systems before urethra reconstruction surgery and corresponding methods. The medical three-way valve and the corresponding cystostomy flushing system and bladder flushing system before urethra reconstruction surgery and the corresponding methods have the characteristics described in the claims, and therefore are all within the scope of the protection field defined thereby.

Claims (9)

1. A medical three-way valve, characterized in that: the valve comprises a valve body (1) and a valve core (2) which is arranged in the valve body (1) and can horizontally rotate, wherein the top of the valve core (2) extends out of the valve body (1) and is fixedly connected with a steering handle (3), three connecting pipes (101) with 90-degree included angles are horizontally arranged on the outer side of the valve body (1), three liquid passing holes (201) with 90-degree included angles are horizontally arranged on the valve core (2), and the three liquid passing holes (201) are mutually communicated;

The other ends of the two connecting pipes (101) are respectively fixedly connected with a first pagoda joint (4) and a first connecting joint (5), the first connecting joint (5) is cylindrical or tapered cylindrical, the other end of the connecting pipe (101) is fixedly connected with a positive pressure joint (6), or the port edge of the other connecting pipe (101) is provided with a flange (102), threads are arranged on the outer circumferential surface of the flange (102), and the flange (102) can be detachably connected with the positive pressure joint (6) through the threads.

2. The medical three-way valve according to claim 1, wherein: three passage indication parts (301) with an included angle of 90 degrees are arranged on the steering handle (3), the positions of the three passage indication parts (301) correspond to the positions of the three liquid passing holes (201), and arrows for indicating the passage directions are marked on the top surfaces of the passage indication parts (301).

3. The medical three-way valve according to claim 1, wherein: the first pagoda joint (4) comprises a plurality of conical clamping parts which are arranged in a step-like manner, and the taper of the plurality of conical clamping parts is gradually increased from outside to inside.

4. A pre-urethral reconstruction surgical irrigation system, characterized by: comprises a double-cavity catheter (7), a liquid collecting component (8), a first flushing component (9) and the medical three-way valve of any one of claims 1-3; the double-cavity catheter (7) comprises a main body catheter, wherein the front end of the main body catheter is a bladder insertion end, the rear end of the main body catheter is a connecting end, the bladder insertion end is provided with a plurality of through holes communicated with the lumen of the main body catheter, a balloon is arranged outside the bladder insertion end, one side of the connecting end is provided with a filling joint, a filling channel which is communicated with the balloon and the filling joint is arranged in the pipe wall of the main body catheter, and the first pagoda joint (4) is connected with the connecting end in a sealing way; the liquid collecting component (8) is in sealing connection with the first connecting joint (5) and is used for collecting liquid led out from the double-cavity catheter (7); the first flushing component (9) is connected with the positive pressure joint (6) in a sealing way and is used for injecting diluted complex iodine into the bladder through the double-cavity catheter (7).

5. The irrigation system as recited in claim 4, wherein: the first flushing assembly (9) comprises a first flushing fluid storage bag (901) and a first flushing fluid storage tube (902), diluted complex iodine is stored in the first flushing fluid storage bag (901), one end of the first flushing fluid storage tube (902) is communicated with the first flushing fluid storage bag (901), the other end of the first flushing tube is fixedly connected with an outer conical joint (905), the first flushing tube (902) is detachably and hermetically connected with a positive pressure joint (6) through the outer conical joint (905), a drip cup (903) and a first flow control switch (904) are arranged on the first flushing tube (902), and the drip cup (903) is arranged between the first flushing fluid storage bag (901) and the first flow control switch (904).

6. A bladder irrigation system, characterized by: comprises a three-cavity catheter (11), a liquid collecting component (8), a second flushing component (10) and the medical three-way valve of any one of claims 1-3; the three-cavity catheter (11) comprises a main body catheter, the front end of the main body catheter is a bladder insertion end, the rear end of the main body catheter is a connecting end, the bladder insertion end is provided with a plurality of through holes communicated with the lumen of the main body catheter, a balloon is arranged outside the bladder insertion end, two sides of the connecting end are respectively provided with a filling joint and a liquid collecting joint, a filling channel communicated with the balloon and the filling joint is arranged in the wall of the main body catheter, the first pagoda joint (4) is in sealing connection with the connecting end, and the liquid collecting assembly (8) is in sealing connection with the liquid collecting joint and is used for collecting liquid led out from the three-cavity catheter (11); the second flushing component (10) is in sealing connection with the first connecting joint (5) and is used for injecting flushing liquid into the bladder through the three-cavity catheter (11).

7. The irrigation system according to claim 4 or 6, wherein: the liquid collecting assembly (8) comprises a second pagoda joint (801), a liquid collecting pipe (802), a pipe closing clamp (803) and a liquid collecting bag (804), wherein the liquid collecting pipe (802) is connected between the second pagoda joint (801) and the liquid collecting bag (804), the pipe closing clamp (803) is arranged on the liquid collecting pipe (802), and a liquid discharging switch is further arranged at the bottom of the liquid collecting bag (804); the second pagoda joint (801) comprises a plurality of conical clamping parts which are arranged in a step-like manner, the taper of the plurality of conical clamping parts is gradually increased from outside to inside, and the second pagoda joint (801) is in sealing connection with the first connecting joint (5) or the liquid collecting joint.

8. The irrigation system as recited in claim 6, wherein: the second flushing assembly (10) comprises a second flushing fluid storage bag (1001) and a second flushing pipe (1002), flushing fluid is stored in the second flushing fluid storage bag (1001), one end of the second flushing pipe (1002) is communicated with the second flushing fluid storage bag (1001), a third tower connector (1004) is fixedly connected to the other end of the second flushing pipe, the second flushing pipe (1002) can be detachably and hermetically connected with the first connector (5) through the third tower connector (1004), and a second flow control switch (1003) is arranged on the second flushing pipe (1002); the third tower joint (1004) comprises a plurality of conical clamping parts which are arranged in a step shape, and the taper of the conical clamping parts is gradually increased from outside to inside.

9. The irrigation system as recited in claim 6, wherein: the bladder irrigation system further comprises a screw injector (12) detachably connected with the positive pressure joint (6) or the flange (102), and the screw injector (12) is used for dredging the three-cavity catheter (11).