Urethral catheter with anti-blocking function

Abstract

The catheter comprises a catheter head and a catheter body, the catheter head and the catheter body are detachably connected, the catheter head is provided with an air bag, a flushing opening and a drainage opening and connected with an inflation pipeline, a flushing pipeline and a drainage pipeline respectively, and a connecting cover is arranged at the bottom end of the catheter head; the catheter body is composed of a connecting seat and a catheter channel, an inflation connector, a flushing connector and a drainage connector are arranged on the connecting seat, an inflation intubation tube, a flushing intubation tube and an anti-blocking inner tube are arranged in the catheter channel, and a plurality of liquid inlets are formed in the anti-blocking inner tube from top to bottom. The double-catheter-body structure is adopted, when the catheter is blocked, urine can flow into the anti-blocking inner catheter from the liquid inlet of the anti-blocking inner catheter above the blocked position, a urine flowing channel can be kept all the time, the problem that an existing catheter is prone to being blocked is solved, through the detachable structure, when blockage is serious, the catheter body and the catheter head are separated, and a new replaced catheter body is connected with the catheter head, so that the catheter is convenient to use. And the problems of discomfort and pain of a patient caused by repeatedly pulling out the adapter tube are avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of medical appliances and relates to a urinary catheter with an anti-blocking function. Background Art

[0002] As a relatively common medical device, a urinary catheter is primarily used to drain urine from the bladder of patients who are unable to urinate normally. After abdominal surgery, especially those involving the pelvis and lower abdomen, patients require a urinary catheter. Conventional clinical practice involves inserting the catheter into the bladder, allowing urine from the patient's bladder to flow into the catheter through the drainage port. The other end of the catheter is connected to a urine bag, where the drained urine is collected. This reduces the risk of bladder damage and allows medical staff to observe the amount of urine drained in real time to assess the patient's renal function and circulating blood volume.

[0003] At present, the fluid accumulated in the bladder of postoperative patients may contain viscous blood, or even blood clots, stones, etc., which may flow into the catheter during the drainage process and cause blockage of the catheter. The blockage often occurs in the middle section of the catheter, which will cause the catheter to have poor urine drainage and cause the patient to have difficulty urinating and painful urination. When the blockage is serious, the urine cannot be drained and accumulates in the patient's bladder, causing the patient's lower abdominal distension and pain, and even medical accidents such as urine reflux to the kidneys. Therefore, when the blockage is serious, medical staff will pull the catheter out of the patient's body and replace it with a new one. This process is time-consuming and tedious, and the operation is extremely inconvenient. The repeated removal and insertion of the catheter will cause great discomfort and pain to the patient. Therefore, it is urgent to design a catheter that can prevent blockage to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a urinary catheter with an anti-blocking tube function. It is based on a double-tube structure design and adopts a double-tube structure. When the tube is blocked, urine can flow into the anti-blocking inner tube from the liquid inlet of the anti-blocking inner tube above the blocked part, which can always maintain the urine flow channel and solve the problem that the existing urinary catheter is easily blocked. Moreover, through the detachable structure, when the blockage is serious, the tube body and the tube head can be separated, and the new tube body can be connected to the tube head, avoiding the problem of repeated unplugging and connecting the tube to the tube head causing discomfort and pain to the patient.

[0005] The technical solution adopted by the present invention is:

[0006] A urinary catheter with an anti-blocking function comprises a tube head and a tube body, the tube head and the tube body being detachably connected, an air bag being provided on the tube head, the air bag being connected to an inflation pipe, the inflation pipe being arranged in the tube head, a flushing port being provided on the tube head, the flushing port being connected to a flushing pipe, the flushing pipe being arranged in the tube head, a drainage port being provided on the tube head, the drainage port being connected to a drainage pipe arranged in the tube head, a connecting cover being provided at the bottom end of the tube head, and a through hole being provided on the connecting cover for fixing the pipe openings of the inflation pipe, the flushing pipe, and the drainage pipe;

[0007] The tube body is composed of a connecting seat and a urinary catheter tube. The connecting seat is arranged at the top end of the urinary catheter tube. An inflation joint, a flushing joint and a drainage joint corresponding to the pipe openings of the inflation tube, the flushing tube and the drainage tube are provided on the connecting seat. An inflation cannula connected to the inflation joint and a flushing cannula connected to the flushing joint are provided in the urinary catheter tube. An anti-blocking inner tube is provided in the urinary catheter tube. The top of the anti-blocking inner tube is connected to the urinary catheter tube by a connecting rod, and the opening at the bottom is located at the bottom of the urinary catheter tube. Several liquid inlets are evenly spaced from top to bottom on the anti-blocking inner tube.

[0008] Furthermore, the tube head is provided with a threaded connector, and a limiting clamp is provided on the outer edge of the bottom end of the tube head. Correspondingly, a matching thread is provided on the connecting seat of the tube body.

[0009] Furthermore, a fixing pad is movably provided on the urinary catheter of the tube body, a strap is provided on the fixing pad, and limiting cloth rings are provided on the left and right parts of the fixing pad.

[0010] Furthermore, the strap is a Velcro.

[0011] Furthermore, the left side of the Velcro is wider than the right side, and a hole is provided on the left side of the Velcro, the width of the hole matches the width of the right side of the Velcro, and the right side of the Velcro passes through the left side through the hole to form a ring structure.

[0012] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0013] 1. The present invention adopts a double-tube structure and an anti-blocking inner tube is arranged in the urinary catheter. When the urinary catheter is blocked, urine flows into the anti-blocking inner tube from the liquid inlet above the blocked part and flows into the urinary catheter at the lower end of the blocked part through the anti-blocking inner tube. It can also flow directly into the urine collection bag from the anti-blocking inner tube. The anti-blocking inner tube can maintain smooth drainage of urine, effectively solving the problem of poor urine drainage after blockage of the existing urinary catheter. In addition, the tube head and the tube body adopt a detachable connection structure. When the urinary catheter is seriously blocked, the tube body and the tube head can be disassembled and separated, and a new tube body can be connected to the tube head, avoiding the problem of repeated removal and connection of the tube to cause discomfort and pain to the patient.

[0014] 2. During the indwelling of the urinary catheter, the present invention moves the fixing pad to the corresponding leg position according to the patient's needs and fixation requirements, and fixes it with Velcro. When fixed for a long time, the Velcro can be properly loosened to relax the patient's legs, which can avoid the problem of using medical tape to stick the urinary catheter for secondary fixation, which causes long-term adhesion and pressure on the leg fixation site and causes skin damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention.

[0016] Figure 2 It is a schematic diagram of the pipe head structure of the present invention.

[0017] Figure 3 It is a longitudinal sectional view of the pipe head of the present invention.

[0018] Figure 4 Schematic diagram of the tube structure of the present invention.

[0019] Figure 5 It is a longitudinal cross-sectional view of the tube body of the present invention.

[0020] Figure 6 It is an enlarged view of part A of the present invention.

[0021] Figure 7 This is a schematic diagram of the connection between the urinary catheter and the anti-blocking inner tube of the present invention.

[0022] Figure 8 This is a schematic diagram of the connection between the pipe head and the pipe body of the present invention.

[0023] Figure 9 This is a structural schematic diagram of the connecting cover of the present invention.

[0024] Figure 10 This is a schematic diagram of the anti-blocking inner tube structure of the present invention.

[0025] Figure 11 It is a schematic diagram of the structure of the fixing pad of the present invention.

[0026] Figure 12 It is a schematic diagram of the structure of the Velcro of the present invention.

[0027] In the figure: 1. Tube body; 2. Tube head; 2-1. Limiting clamp; 3. Air bag; 4. Spiral connector; 5. Fixing pad; 6. Velcro; 7. Limiting cloth ring; 8. Flushing cannula; 9. Urinary catheter; 10. Inflation cannula; 11. Flushing port; 12. Drainage port; 13. Connecting cover; 13-1. Through port; 14. Inflation pipe; 15. Drainage pipe; 16. Flushing pipe; 17. Connecting seat; 18. Inflation connector; 19. Drainage connector; 20. Flushing connector; 21. Anti-blocking inner tube; 22. Connecting rod; 23. Liquid inlet; 24. Through port. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0029] like Figures 1 to 12 In the structure shown, the urinary catheter with anti-blocking function provided by the present invention includes a tube head 2 and a tube body 1, and the tube head 2 and the tube body 1 are made of PVC material; the tube head 2 is detachably connected to the tube body 1, and an air bag 3 is provided on the tube head 2, and the air bag 3 is connected to an inflation pipe 14, and the inflation pipe 14 is arranged in the tube head 2, and the air bag 3 can be inflated through the inflation pipe 14; a flushing port 11 is provided at the top of the tube head 2, and the flushing port 11 is connected to a flushing pipe 16, and the flushing pipe 16 is arranged in the tube head 2, and the medicine can be cleaned in the bladder through the flushing pipe 16 via the flushing port 11; at the tube head 2 A drainage port 12 is provided on the top, which is connected to a drainage pipe 15 provided in the pipe head 2, so that urine can flow into the drainage pipe 15 through the drainage port 12; a connecting cover 13 is provided at the bottom end of the pipe head 2, which is configured as a concave structure, and the connecting cover 13 is disposed on the concave surface; a through hole 13-1 is provided on the connecting cover 13 for fixing the pipe openings of the inflation pipe 14, the flushing pipe 16, and the drainage pipe 15; after the through hole 13-1 on the connecting cover 13 is correspondingly inserted into the inflation pipe 14, the flushing pipe 16, and the drainage pipe 15, the pipe head 2 can be connected to the pipe body 1 conveniently and the connection stability can be enhanced;

[0030] The tube body 1 is composed of a connecting seat 17 and a urinary catheter 9. The connecting seat 17 is arranged at the top of the urinary catheter 9. An inflation joint 18, a flushing joint 20 and a drainage joint 19 corresponding to the pipe openings of the inflation pipe 14, the flushing pipe 16 and the drainage pipe 15 are provided on the connecting seat 17. After the connecting seat 17 is connected to the concave connection cover 13 at the bottom end of the tube head 2, and the inflation joint 19, the flushing joint 20 and the drainage joint 19 are inserted into the corresponding through-holes 13-1 on the connecting cover 13, the tube body 1 can be connected to the tube head 2; an inflation cannula 10 connected to the inflation joint 18 and a flushing cannula 8 connected to the flushing joint 20 are provided in the urinary catheter 9. After the tube body 1 is connected to the tube head 2, the cannula 10 can be connected to the urinary catheter 9 through the flushing cannula 8. The inflation cannula 10 inflates the airbag 3 through the inflation pipe 14, flushes the bladder through the flushing cannula 8 through the flushing pipe 16, and drains the urine in the bladder through the urinary catheter 9 through the drainage pipe 15; an anti-blocking inner tube 21 is provided in the urinary catheter 9, the top of the anti-blocking inner tube 21 is connected to the urinary catheter 9 through a connecting rod 22, and the opening at the bottom is located at the bottom of the urinary catheter 9, and the anti-blocking inner tube 21 is evenly spaced from top to bottom. Several liquid inlets 23 are arranged on the anti-blocking inner tube 21 at even intervals from top to bottom; when the urinary catheter 9 is blocked, urine can flow into the anti-blocking inner tube 21 through the liquid inlet 23 above the blockage, and flow back to the urinary catheter 9 through the liquid inlet 21 below the blockage, or directly flow out from the bottom of the anti-blocking inner tube 20.

[0031] Preferably, a filter screen is provided on the liquid inlet 23 to prevent blocking substances in urine from flowing into the anti-blocking inner tube 21 and causing secondary blockage.

[0032] In this embodiment, a threaded connector 4 is provided on the tube head, a limiting clamp 2-1 is provided at the bottom end of the tube head 2, and a limiting clamp 2-1 is provided on the outer edge of the bottom end of the tube head 2. Correspondingly, a matching thread is provided on the connecting seat 17 of the tube body 1; the limiting clamp 2-1 can limit the threaded connector 4 from falling off when twisting, thereby ensuring that the tube head 2 is connected to the tube body 1; when connecting, the inflation joint 18, flushing joint 20 and drainage joint 19 on the connecting head 17 are correspondingly inserted with the inflation pipe 14, flushing pipe 16 and drainage pipe 15 on the tube head 2 through the through-port 13-1 of the connecting cover 13, and then the threaded connector 4 is twisted to tighten the joint between the tube head 2 and the tube body 1 to enhance the connection stability between the tube head 2 and the tube body 1.

[0033] exist Figure 9-10In the structure shown, in this embodiment, a fixing pad 5 is movably provided on the urinary catheter 9 of the tube body 1, and a strap is provided on the fixing pad 5. The fixing pad 5 can move along the tube body 1, and the fixing pad 5 can be tied to the patient's leg through the strap; a limiting cloth ring 7 is provided on the left and right parts of the fixing pad 5, and the limiting cloth ring 7 can prevent the strap from being deflected and causing the problem of loose restraint; when the tube body 1 is fixed for the second time, the fixing pad 5 can be moved to the corresponding position of the leg according to the patient's needs and fixation requirements, and then the fixing pad 5 can be tied to the patient's leg with a strap, so that the tube body 1 can be fixed for the second time, the stability of the tube body 1 can be enhanced, and the chance of tube falling off can be reduced.

[0034] Preferably, the strap is a Velcro 6, which can be used to adjust the tightness of the strap according to the thickness of the patient's legs.

[0035] Specifically, the width of the left part of the Velcro 6 is larger than that of the right part. A hole 24 is provided on the left part of the Velcro 6. The width of the hole 24 matches the width of the right part of the Velcro 6. The right part of the Velcro 6 passes through the left part through the hole to form a ring structure. The tube body 1 can be buckled through the ring structure, and the tube body 1 can be bound by pulling the left and right sides of the Velcro 6 to fix the tube body 1 to the fixing pad. The Velcro 6 can be wrapped around the patient's leg and bonded to achieve the purpose of secondary fixation of the tube body 1.

[0036] Working principle of the present invention:

[0037] During catheterization, the inflation connector, flushing connector and drainage connector are respectively inserted into the inflation pipe, flushing pipe and drainage pipe through the openings on the connecting cover, and then the tube head is connected to the tube body, and the threaded connector is screwed to fasten the tube body and the tube head to enhance the connection stability between the tube body and the tube head; then the tube head is inserted into the patient's urethra, and the airbag is inflated through the inflation cannula through the inflation pipe to expand the airbag and fix the tube head in the patient's urethra to prevent the tube head from falling off; then, according to the patient's needs, the fixing pad is moved on the tube body to the corresponding position of the patient's leg, the tube body is first restrained by pulling the Velcro to fix the fixing pad to the tube body, and then the Velcro is bonded to fix the fixing pad to the patient's leg to complete the secondary fixation of the tube body and enhance the stability of the catheter.

[0038] During use, when the urinary catheter is blocked, urine will flow into the anti-blocking inner tube through the liquid inlet above the blockage (the filter on the liquid inlet can block impurities) and flow downstream, thereby providing a circulation channel for urine, avoiding poor urine diversion due to blockage. Finally, urine flows into the urine collection bag through the urinary catheter, or directly into the urine collection bag through the bottom of the anti-blocking inner tube.

[0039] When bladder irrigation is required, saline and medication are injected through the irrigation cannula through the irrigation tube to flush the bladder.

[0040] If serious tube blockage occurs, the spiral connector can be unscrewed, and then the tube body and the tube head can be separated, and then a new tube body can be replaced. There is no need to remove the entire tube and insert a new tube, which improves the efficiency of catheter replacement and avoids repeated intubation and removal of the tube, which causes pain to the patient.

[0041] After the fixing pad has been tied for a long time, the Velcro can be loosened as needed to relax the patient's legs and avoid skin damage caused by prolonged pressure on the patient's legs.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that various improvements and modifications may be made without departing from the spirit or essential characteristics of the invention, and such improvements and modifications should also be considered within the scope of protection of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations coming within the meaning and range of equivalents of the claims are intended to be included therein. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

Claims

1. A urinary catheter with an anti-blocking function, characterized in that: The invention comprises a tube head (2) and a tube body (1), wherein the tube head (2) and the tube body (1) are detachably connected, an air bag (3) is provided on the tube head (2), the air bag (3) is connected to an inflation pipe (14), the inflation pipe (14) is arranged in the tube head (2), a flushing port (11) is provided on the tube head (2), the flushing port (11) is connected to a flushing pipe (16), the flushing pipe (16) is arranged in the tube head (2), a drainage port (12) is provided on the tube head (2), the drainage port (12) is communicated with a drainage pipe (15) arranged in the tube head (2), a connecting cover (13) is provided at the bottom end of the tube head (2), and a through hole (13-1) for fixing the pipe openings of the inflation pipe (14), the flushing pipe (16), and the drainage pipe (15); The tube body (1) is composed of a connecting seat (17) and a urinary catheter (9). The connecting seat (17) is arranged at the top of the urinary catheter (9). An inflation joint (18), a flushing joint (20) and a drainage joint (19) corresponding to the pipe openings of the inflation pipe (14), the flushing pipe (16) and the drainage pipe (15) are provided on the connecting seat (17). An inflation cannula (10) connected to the inflation joint (18) and a flushing cannula (8) connected to the flushing joint (20) are provided in the urinary catheter (9). An anti-blocking inner tube (21) is provided in the urinary catheter (9). The top of the anti-blocking inner tube (21) is connected to the urinary catheter (9) through a connecting rod (22), and the opening at the bottom is located at the bottom of the urinary catheter (9). The anti-blocking inner tube (21) is evenly spaced from top to bottom and has several liquid inlets (23).

2. The urinary catheter with anti-blocking function according to claim 1, characterized in that: The liquid inlet (23) is provided with a filter screen.

3. The urinary catheter with anti-blocking function according to claim 1, characterized in that: The pipe head (2) is provided with a threaded connector (4), and a limiting clamping ring (2-1) is provided on the outer edge of the bottom end of the pipe head (2). Correspondingly, a matching thread is provided on the connecting seat (17) of the pipe body (1).

4. The urinary catheter with anti-blocking function according to claim 1, characterized in that: A fixed pad (5) is movably provided on the urinary catheter (9) of the tube body (1), a binding belt is provided on the fixed pad (5), and limiting cloth rings (7) are provided on the left and right parts of the fixed pad (5).

5. The urinary catheter with anti-blocking function according to claim 4, characterized in that: The binding strap is a Velcro (6).

6. The urinary catheter with anti-blocking function according to claim 5, characterized in that: The left portion of the Velcro (6) is wider than the right portion, a through-hole (24) is provided on the left portion of the Velcro (6), the width of the through-hole (24) matches the width of the right portion of the Velcro (6), and the right portion of the Velcro (6) passes through the left portion via the through-hole (24) to form a ring-shaped structure.

Images