Bladder irrigation catheter

Abstract

The invention discloses a bladder flushing catheter, comprising a catheter body with a urination channel inside, the catheter body is provided with a plurality of urination holes communicated with the urination channel, a lower side wall of one end of the catheter body in contact with the urethral opening is connected with a balloon, a ventilation channel is also provided inside the catheter body, the ventilation channel is communicated with the balloon, the other end of the ventilation channel is connected with a ventilation tube penetrating the side wall of the catheter body, a cleaning hole is provided at one end of the catheter body extending into the urethra, the catheter body is also provided with a cleaning channel, a sleeve ring slidably connected with the catheter body is sleeved on the outer wall of the catheter body, the sleeve ring is connected with a fixing plate for fixing to the abdominal skin of the patient, a pressure sensor for detecting the pressure in the bladder is provided at one end of the catheter body extending into the urethral opening, and a sound alarm and a battery are provided on the outer wall of the other end of the catheter body, which has the characteristics of preventing the catheter from being blocked and being able to give an alarm in time even if blockage occurs.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and more particularly to a bladder flushing catheter. Background Art

[0002] In the clinical practice of urology, intrabladder bleeding, bladder stones and bladder spasm are important causes of catheter obstruction; the existing catheter drainage port aperture and number are limited, and the effective drainage channel is often easily blocked by blood clots, stones or even spasmodic bladder mucosa, resulting in poor drainage. For patients with bladder bleeding that forms blood clots or bladder stones, if their bladders are not flushed in time or not flushed thoroughly, the catheter will be blocked, which may put the patient's life in danger. In addition, patients who retain catheterization are prone to bladder spasm, which leads to catheter blockage and poor drainage. Frequent bladder flushing and replacement of catheters will not only pose a safety hazard to patients, but also increase the daily workload of medical workers.

[0003] Traditional indwelling urinary catheters are prone to cause urine leakage, urine retention after catheter removal, urinary tract infection, urethral sphincter spasm, prostatic hyperplasia, etc., which can lead to difficulties in catheterization and poor drainage. Although existing urinary catheters can flush the bladder by injecting flushing fluid, if the blood clot in the bladder blocks the tube body, the flushing fluid cannot be injected and function; therefore, it is very necessary and beneficial for patients to develop a urinary catheter device that can effectively prevent blood clots, stones or bladder mucosa in the bladder from blocking the tube opening. Summary of the invention

[0004] In view of the shortcomings of the prior art, the object of the present invention is to provide a bladder flushing catheter, which has the characteristics of preventing the catheter from being blocked and being able to give an alarm in time even if blockage occurs.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A bladder flushing catheter comprises a catheter body with a urination channel inside, a plurality of urination holes connected to the urination channel are opened on the upper side wall of the end of the catheter body in contact with the urethral opening, a balloon is connected to the lower side wall of the end of the catheter body in contact with the urethral opening, a ventilation channel is also arranged in the catheter body, the ventilation channel is connected to the balloon, the other end of the ventilation channel is connected to a ventilation pipe passing through the side wall of the catheter body, an air inlet check valve is arranged at the end of the ventilation pipe, a cleaning hole is opened at the end of the catheter body extending into the urethra, and a cleaning passage is also arranged in the catheter body The cleaning hole is connected with one end of the cleaning channel, the other end of the cleaning channel is connected with a cleaning tube passing through the outer wall of the catheter body, the outer wall of the catheter body is sleeved with a ring slidably connected with the catheter body, the ring is connected with a fixing plate for fixing to the patient's abdominal skin, one end of the catheter body extending into the urethral opening is provided with a pressure sensor for detecting the pressure in the bladder, the outer wall of the other end of the catheter body is provided with a sound alarm and a battery, the pressure sensor is connected to the sound alarm signal, and the pressure sensor and the sound alarm are both electrically connected to the battery.

[0007] By adopting the above technical solution, a single-sided balloon structure is used, so that the balloon wall does not contact or only slightly contacts the bladder triangle, the catheter body can be fixed in the bladder for a long time, the bladder triangle and the urination hole will not be compressed, and the catheterization and drainage effect is better. The relative position between the collar and the catheter body can be adjusted according to the patient's body shape through the collar that slides with the catheter body and the fixing plate of the collar, and fixed to the patient's abdomen, thereby reducing the friction between the catheter body and the patient's urethral opening, and urethral injury can be avoided, which is beneficial to clinical nursing. The patient's bladder is cleaned through the cleaning hole, the cleaning channel and the cleaning tube. At the same time, after the balloon is inflated, the urination channel at this position can be protected from being squeezed, thereby improving the urination effect. At the same time, when a blockage occurs, due to the setting of the pressure sensor, when the pressure value in the bladder is greater than the set value of the pressure sensor, the pressure sensor sends a signal to the sound alarm, and the sound alarm alarms, thereby reminding medical staff that the patient has a condition.

[0008] Furthermore, a guide groove is formed on the outer wall of the catheter body along its length direction, a screw is threadedly connected to the collar, and one end of the screw is rotatably abutted against the guide groove to fix the relative position of the collar and the catheter body.

[0009] By adopting the above technical solution and setting a guide groove, the rotating end of the screw can be pressed against the guide groove to complete the fixation of the ring and the catheter body. At the same time, the guide groove can also guide the secretions caused by urethral infection or damage to be drained out in a timely and smooth manner, thereby reducing the incidence of urethral infection and reducing the damage caused by urethral infection.

[0010] Furthermore, a backup channel for urine discharge is also provided in the catheter body, and one end of the backup channel extending into the urethral opening is slidably connected to a cover plate capable of opening or closing the connection between the backup channel and the bladder. When the pressure value in the bladder is greater than the set value of the pressure sensor, the cover plate is in a first state of opening the backup channel to be connected to the bladder, and when the pressure value in the bladder is less than the set value of the pressure sensor, the cover plate is in a second state of closing the backup channel to be connected to the bladder.

[0011] By adopting the above technical solution, a spare channel is set in the catheter body. During the daily use of the catheter body, the spare channel is in a closed state, and the urine in the bladder can be discharged from the urination channel. When the urination channel is blocked, the urine in the bladder cannot be discharged from the urination channel in time, and the pressure in the bladder continues to increase. When the pressure value in the bladder is greater than the set value of the pressure sensor, the sound alarm sounds an alarm, and the pressure in the bladder pushes the cover plate to move, the spare channel is opened, and part of the urine can be discharged from the spare channel, thereby ensuring that the pressure value in the bladder will not harm the patient's health.

[0012] Furthermore, the cross-section of the spare channel is circular, and the cover plate is arranged in cooperation with the spare channel. A transition long groove is opened in the spare channel along its length direction. A spring is provided in the spare channel, one end of the spring is connected to the cover plate, and the other end of the spring is connected to the side wall of the spare channel. When the end of the cover plate close to one end of the urethra is flush with the end of the transition long groove, the spring is in a compressed state, and the elastic force is the same as the set value of the pressure sensor.

[0013] By adopting the above technical solution, when the pressure in the bladder is less than the set value of the pressure sensor, the elastic force of the spring acts, the cover is in the transition groove close to one end of the urethra, and has no intersection with the transition groove. Therefore, the cover blocks the spare channels at both ends, and the spare channels are in a closed state. When the pressure in the bladder is greater than the set value of the pressure sensor, the pressure in the bladder pushes the cover to slide away from the urethra and overcomes the elastic force of the spring. The cover is in an intersection state with the transition groove, the two ends of the spare channel are connected, and the urine in the bladder can be discharged through the spare channel.

[0014] Furthermore, a guide wire hole for allowing a guide wire to pass through is provided at one end of the catheter body extending into the urethra, and the guide wire hole is communicated with the urination channel.

[0015] By adopting the above technical solution, when urethral stenosis occurs and catheterization becomes difficult, medical staff can use a guide wire to pass through the urination channel and the guide wire hole to guide the catheter body to the bladder. At the same time, since the guide wire hole is connected to the urination channel, some urine can enter the urination channel from the guide wire hole.

[0016] Furthermore, there are two urination holes, which are distributed along the length direction of the catheter body, close to the front and rear ends of the balloon respectively, and located on the inner sides of the front and rear ends of the balloon.

[0017] By adopting the above technical solution, the position of the drainage hole is set so that the balloon will not press the urination hole, so that normal urine and abnormal urine caused by pathological changes in the bladder can be completely discharged.

[0018] Furthermore, the catheter body is a medical silicone tube.

[0019] Furthermore, the outer wall and the inner wall of the catheter body are coated with an antibacterial coating, which consists of 5-10 parts of nano silver, 5-6 parts of nano titanium dioxide, 3-4 parts of nano iridium, 15-18 parts of tannin, 3-5 parts of bamboo vinegar, 200-220 parts of silicone acrylic emulsion, 16-20 parts of ethanol, 5-10 parts of propylene glycol alginate, 5-7 parts of ethylene glycol monomethyl ether, 5-6 parts of sodium polyacrylate, 3-5 parts of sodium formate, 2-3 parts of sodium carboxymethyl cellulose, 10-15 parts of rosin and 20-25 parts of shellac in proportion by weight.

[0020] In summary, the present invention has the following beneficial effects:

[0021] 1. By setting up a cleaning channel, a urination channel and a ventilation channel, the effects of urination, bladder flushing and balloon fixation can be achieved;

[0022] 2. The effect of reducing urinary tract infection is achieved by sliding the ring connected to the catheter body and the fixing plate connected to the ring;

[0023] 3. By setting the guide groove, the secretions caused by urinary tract infection or injury can be drained out in a timely and smooth manner;

[0024] 4. By arranging a pressure sensor and a sound alarm at one end of the catheter body close to the urethra, an alarm can be given in time when the pressure in the bladder is too high;

[0025] 5. By setting a backup channel in the urination channel, when the pressure value in the bladder is greater than the set value of the pressure sensor, the backup channel is opened to discharge urine. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1A schematic cross-sectional view of a urology anti-blockage bladder flushing catheter according to an embodiment of the present invention Figure 1 ;

[0027] Figure 2 A schematic cross-sectional view of a urology anti-blockage bladder flushing catheter according to an embodiment of the present invention Figure 2 ;

[0028] Figure 3 It is a schematic cross-sectional view of the structure of the catheter body and the collar;

[0029] Figure 4 A schematic cross-sectional view of the structure of an end portion of a urinary catheter body according to an embodiment of the present invention;

[0030] Figure 5 A schematic cross-sectional view of a portion of the structure between a urinary catheter body and a cover plate according to an embodiment of the present invention.

[0031] In the figure: 1. Catheter body; 11. Urinating channel; 12. Urinating hole; 13. Ventilation channel; 14. Cleaning hole; 15. Cleaning channel; 16. Guide groove; 17. Spare channel; 18. Transition long groove; 19. Guide wire hole; 2. Balloon; 3. Ventilation tube; 31. Inlet check valve; 4. Cleaning tube; 41. Sealing plug; 5. Ring; 51. Fixing plate; 52. Screw; 6. Pressure sensor; 61. Sound alarm; 62. Battery; 7. Cover plate; 8. Spring; 9. Drainage joint. DETAILED DESCRIPTION

[0032] Example:

[0033] The following is combined with Figure 1-5 The present invention is described in further detail.

[0034] A bladder irrigation catheter, such as Figure 1-5As shown, it includes a catheter body 1 with a urination channel 11 inside. In this embodiment, the catheter body 1 is a medical silicone tube. The upper side wall of the catheter body 1 at one end in contact with the urethra opening is provided with a plurality of urination holes 12 connected to the urination channel 11. Urine in the bladder enters the urination channel 11 through the urination holes 12, thereby achieving urination. The catheter body 1 is connected with a drainage joint 9 at one end away from the urethra, and a balloon 2 is connected to the lower side wall of the end of the catheter body 1 that contacts the urethral opening. A ventilation channel 13 is also provided in the catheter body 1, and the ventilation channel 13 is communicated with the balloon 2. The other end of the ventilation channel 13 is connected with a ventilation tube 3 that passes through the side wall of the catheter body 1. An air inlet check valve 31 is provided at the end of the ventilation tube 3 to facilitate inflation of the balloon 2 to prevent leakage. By inflating the balloon 2, the catheter body 1 is fixed in the bladder. A cleaning hole 14 is opened at the end of the catheter body 1 that extends into the urethra. A cleaning channel 15 is also provided in the catheter body 1, and the cleaning hole 14 is communicated with one end of the cleaning channel 15. The other end of the cleaning channel 15 is connected with a cleaning tube 4 that passes through the outer wall of the catheter body 1. Cleaning liquid is injected through the cleaning tube 4 and enters the bladder through the cleaning channel 15 and the cleaning hole 14 in turn, so as to clean the bladder. The end of the cleaning tube 4 extending out of the urinary catheter body 1 is provided with a sealing plug 41. The sealing plug 41 is an elastic plug, and the cleaning tube 4 can be sealed by the sealing plug 41 to prevent liquid from leaking out of the cleaning tube 4.

[0035] The outer wall of the catheter body 1 is sleeved with a ring 5 which is slidably connected to the catheter body 1. The ring 5 is connected with a fixing plate 51 for fixing to the patient's abdominal skin. The other end of the catheter body 1 can be fixed to the patient through the fixing plate 51. The end of the catheter body 1 extending into the urethral opening is provided with a pressure sensor 6 for detecting the pressure in the bladder. The outer wall of the other end of the catheter body 1 is provided with a sound alarm 61 and a battery 62. The pressure sensor 6 is signal-connected to the sound alarm 61. The pressure sensor 6 and the sound alarm 61 are electrically connected to the battery 62. The pressure sensor 6 and the sound alarm 61 are used to monitor the pressure in the bladder and provide an alarm reminder.

[0036] The outer wall of the catheter body 1 is provided with a guide groove 16 along its length direction, and the collar 5 is threadedly connected with a screw rod 52, and one end of the screw rod 52 is rotatably abutted against the guide groove 16, which is used to fix the relative position of the collar 5 and the catheter body 1. By providing the guide groove 16, the rotating end of the screw rod 52 can be tightly abutted against the guide groove 16, completing the fixation of the collar 5 and the catheter body 1. At the same time, the guide groove 16 can also guide the secretions caused by urinary tract infection or damage to be drained out in a timely and smooth manner, thereby reducing the incidence of urinary tract infection and reducing the damage caused by urinary tract infection.

[0037] The catheter body 1 is also provided with a spare channel 17 for urine discharge. The spare channel 17 extends into the urethral opening and is slidably connected to a cover plate 7 that can open or close the spare channel 17 to connect with the bladder. When the pressure value in the bladder is greater than the set value of the pressure sensor 6, the cover plate 7 is in a first state in which the spare channel 17 is opened to connect with the bladder. When the pressure value in the bladder is less than the set value of the pressure sensor 6, the cover plate 7 is in a second state in which the spare channel 17 is closed to connect with the bladder.

[0038] The spare channel 17 has a circular cross section, and the cover plate 7 is arranged in cooperation with the spare channel 17. A transition long groove 18 is provided in the spare channel 17 along its length direction. The cross section of the cover plate 7 is the same as that of the spare channel 17. A spring 8 is arranged in the spare channel 17. One end of the spring 8 is connected to the cover plate 7, and the other end of the spring 8 is connected to the side wall of the spare channel 17. When the end of the cover plate 7 close to the urethra is flush with the end of the transition long groove 18, the spring 8 is in a compressed state, and the elastic force is the same as the set value of the pressure sensor 6. Normally, due to the action of the spring 8, the cover plate 7 is at the end of the spare channel 17 close to the urethra, and due to the cooperative arrangement of the cover plate 7 and the spare channel 17, the cover plate 7 separates the two ends of the spare channel 17. When the pressure in the bladder increases, the cover plate 7 is pushed to slide away from the urethra. When the cover plate 7 is pushed and is in the transition long groove 18 area, the urine in the bladder can enter the other end of the spare channel 17 through the transition long groove 18, thereby discharging the urine.

[0039] The end of the catheter body 1 extending into the urethra is provided with a guide wire hole 19 for the guide wire to pass through, and the guide wire hole 19 is connected to the urination channel 11. When urethral stenosis occurs and catheterization is difficult, medical staff can use the guide wire to pass through the urination channel 11 and the guide wire hole 19 to guide the catheter body 1 to the bladder. At the same time, since the guide wire hole 19 is connected to the urination channel 11, part of the urine can enter the urination channel 11 from the guide wire hole 19.

[0040] There are two urination holes 12, which are distributed along the length direction of the urinary catheter body 1, close to the front and rear ends of the balloon 2, and located on the inner side of the front and rear ends of the balloon 2. The location of the drainage holes is set so that the balloon 2 will not press the urination holes 12, so that normal urine and abnormal urine caused by pathological changes in the bladder can be completely discharged.

[0041] The outer wall and the inner wall of the catheter body 1 are coated with antibacterial coating, which is composed of 5-10 parts of nano silver, 5-6 parts of nano titanium dioxide, 3-4 parts of nano iridium, 15-18 parts of tannin, 3-5 parts of bamboo vinegar, 200-220 parts of silicone acrylic emulsion, 16-20 parts of ethanol, 5-10 parts of propylene glycol alginate, 5-7 parts of ethylene glycol monomethyl ether, 5-6 parts of sodium polyacrylate, 3-5 parts of sodium formate, 2-3 parts of sodium carboxymethyl cellulose, 10-15 parts of rosin and 20-25 parts of shellac in proportion by weight. The preparation method of the antibacterial coating comprises the following steps:

[0042] The first step is to pour 20-25 parts of shellac and 10-15 parts of rosin into a heating and stirring tank for heating and stirring, wherein the heating temperature is 120-125° C., the stirring speed is 120-150 r / min, and the heating time is 15-20 minutes. After the heating is completed, 5-7 parts of ethylene glycol monomethyl ether are slowly poured in, and then stirring is continued until it is cooled to room temperature to obtain a liquid, which is set aside;

[0043] The second step is to pour 5-10 parts of nano silver, 5-6 parts of nano titanium dioxide, 3-4 parts of nano iridium, 15-18 parts of tannin, 3-5 parts of bamboo vinegar, 200-220 parts of silicone acrylic emulsion, 16-20 parts of ethanol, 5-10 parts of propylene glycol alginate, 5-7 parts of ethylene glycol monomethyl ether, 5-6 parts of sodium polyacrylate, 3-5 parts of sodium formate and 2-3 parts of sodium carboxymethyl cellulose into the liquid prepared in step 1, and then stir the mixture, wherein the stirring speed is 300-350 r / min and the stirring time is 2-4h to obtain the antibacterial coating.

[0044] Antibacterial coatings have excellent antibacterial effects, and after forming a coating on the surface of the coated object, they can provide good anti-corrosion properties and improve durability.

[0045] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A bladder flushing catheter, comprising a catheter body (1) having a urination channel (11) therein, characterized in that: The upper side wall of the end of the catheter body (1) in contact with the urethral opening is provided with a plurality of urination holes (12) in communication with the urination channel (11); the lower side wall of the end of the catheter body (1) in contact with the urethral opening is connected with a balloon (2); a ventilation channel (13) is further provided in the catheter body (1), the ventilation channel (13) is in communication with the balloon (2); the other end of the ventilation channel (13) is connected with a ventilation pipe (3) passing through the side wall of the catheter body (1); an air inlet non-return valve (31) is provided at the end of the ventilation pipe (3); a cleaning hole (14) is provided at the end of the catheter body (1) extending into the urethra; a cleaning channel (15) is further provided in the catheter body (1), the cleaning hole (14) is connected to the cleaning channel (15) The cleaning passage (15) is connected to one end of the cleaning passage (15), the other end of the cleaning passage (15) is connected to a cleaning pipe (4) passing through the outer wall of the catheter body (1), the outer wall of the catheter body (1) is sleeved with a collar (5) slidably connected to the catheter body (1), the collar (5) is connected to a fixing plate (51) for fixing to the patient's abdominal skin, the end of the catheter body (1) extending into the urethral opening is provided with a pressure sensor (6) for detecting the pressure in the bladder, the outer wall of the other end of the catheter body (1) is provided with a sound alarm (61) and a battery (62), the pressure sensor (6) is signal-connected to the sound alarm (61), and the pressure sensor (6) and the sound alarm (61) are both electrically connected to the battery (62); The catheter body (1) is further provided with a spare channel (17) for urine discharge. One end of the spare channel (17) extending into the urethral opening is slidably connected to a cover plate (7) capable of opening or closing the spare channel (17) in communication with the bladder. When the pressure value in the bladder is greater than the set value of the pressure sensor (6), the cover plate (7) is in a first state in which the spare channel (17) is opened in communication with the bladder. When the pressure value in the bladder is less than the set value of the pressure sensor (6), the cover plate (7) is in a second state in which the spare channel (17) is closed in communication with the bladder. The spare channel (17) has a circular cross-section, and the cover plate (7) is arranged in cooperation with the spare channel (17). A transition long groove (18) is provided in the spare channel (17) along its length direction. A spring (8) is provided in the spare channel (17), one end of the spring (8) is connected to the cover plate (7), and the other end of the spring (8) is connected to the side wall of the spare channel (17). When the end of the cover plate (7) close to the urethra is flush with the end of the transition long groove (18), the spring (8) is in a compressed state, and the elastic force is the same as the set value of the pressure sensor (6); The urinary catheter body (1) is a medical silicone tube.

2. The bladder irrigation catheter according to claim 1, characterized in that: The outer wall of the catheter body (1) is provided with a guide groove (16) along its length direction, and the collar (5) is threadedly connected with a screw rod (52), one end of the screw rod (52) being rotatably abutted against the guide groove (16) for fixing the relative position of the collar (5) and the catheter body (1).

3. The bladder irrigation catheter according to claim 1, characterized in that: An end portion of the urinary catheter body (1) extending into the urethra is provided with a guide wire hole (19) for a guide wire to pass through, and the guide wire hole (19) is communicated with the urination channel (11).

4. The bladder irrigation catheter according to claim 1, characterized in that: There are two urination holes (12), which are distributed along the length direction of the urinary catheter body (1), respectively close to the front and rear ends of the balloon (2), and located on the inner sides of the front and rear ends of the balloon (2).

5. The bladder irrigation catheter according to claim 1, characterized in that: The outer wall and the inner wall of the catheter body (1) are coated with an antibacterial coating, which is composed of 5-8 parts of nano silver, 5-6 parts of nano titanium dioxide, 3-4 parts of nano iridium, 15-18 parts of tannin, 3-5 parts of bamboo vinegar, 200-220 parts of silicone acrylic emulsion, 16-20 parts of ethanol, 5-10 parts of propylene glycol alginate, 5-7 parts of ethylene glycol monomethyl ether, 5-6 parts of sodium polyacrylate, 3-5 parts of sodium formate, 2-3 parts of sodium carboxymethyl cellulose, 10-15 parts of rosin and 15-18 parts of shellac in proportion by weight.

Images