Urinary catheterization device for preventing blood clot blockage

Abstract

The present invention relates to a urinary catheter device for preventing blood clot blockage, comprising a urinary catheter, a guide cone is provided at the front end of the urinary catheter, the guide cone is provided with a spare urinary catheter hole, the spare urinary catheter hole is closed with a closing piece, an easy-to-tear film is provided at the edge of the closing piece, the closing piece is integrally formed and provided on the guide cone, a guide wire is provided in the closing piece for tearing the film to open the spare urinary catheter hole, a guide wire channel is provided in the urinary catheter, one end of the guide wire is solidified in the closing piece, and the other end passes through the guide wire channel and extends out of the urinary catheter, a crushing tooth is provided on the inner side of the closing piece, and a handle for operating the guide wire to drive the crushing tooth to crush the blood clot is provided at the end of the guide wire extending out of the urinary catheter. The present invention solves the problem of blood clot blockage by providing a spare urinary catheter hole, ensures smooth excretion of patients, effectively reduces the workload of clinical medical care, and improves the work efficiency of medical care.

Description

Technical Field

[0001] The invention belongs to the field of medical supplies, and in particular relates to a urinary catheterization device capable of preventing blockage by blood clots. Background Art

[0002] In clinical medicine, when patients are unable to urinate on their own, a catheter is usually inserted into the bladder to drain urine. However, sometimes there are blood clots in the patient's bladder, and some of the blood clots cannot pass through the catheter hole, which easily blocks the catheter hole and causes poor drainage of the catheter. If the catheter hole is enlarged, the blood clot can pass through the catheter hole, but in this way, the catheter is easily damaged in the urethra during insertion due to the large catheter hole, causing infection.

[0003] Therefore, when blood clots appear in the bladder and block the catheter, the existing method is to solve the problem of blood clots blocking the catheter by flushing the bladder, but cleaning the bladder is a very time-consuming and laborious process.

[0004] In view of the above problems, it is necessary to propose a method that can quickly solve the problem of blood clots blocking the urinary catheter to solve the time-consuming and laborious dilemma of nurses in flushing the bladder. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a urinary catheter device that prevents blood clot blockage. When a blood clot blocks the urinary catheter hole, the spare urinary catheter hole is activated, and the sealing piece that closes the spare urinary catheter hole is torn open by a guide wire, so that the blood clot can pass through the urinary catheter hole and maintain smooth drainage. In order to prevent the urinary catheter from being further blocked, crushing teeth are provided on the inner side of the sealing piece to solve the problem of re-blocking, further ensure smooth drainage of the urinary catheter, effectively reduce the workload of clinical medical care, and improve the work efficiency of medical care.

[0006] The objective of the present invention is achieved through the following technical solutions:

[0007] A urinary catheter device for preventing blood clot blockage comprises a urinary catheter, a guide cone is arranged at the front end of the urinary catheter, the guide cone is arranged at a spare urinary catheter hole, the spare urinary catheter hole is closed by a closing piece, an easy-to-tear film is arranged at the edge of the closing piece, the closing piece is integrally formed and arranged on the guide cone, a guide wire is arranged in the closing piece for tearing the film to open the spare urinary catheter hole, a guide wire channel is arranged in the urinary catheter, one end of the guide wire is solidified in the closing piece, and the other end passes through the guide wire channel and extends out of the urinary catheter, a crushing tooth is arranged on the inner side of the closing piece, and a handle for operating the guide wire to drive the crushing tooth to crush the blood clot is arranged at the end of the guide wire extending out of the urinary catheter.

[0008] Furthermore, the spare urinary catheter hole is a square hole, and the length direction and the width direction of the square hole are both larger than the diameter of the urinary catheter hole.

[0009] Furthermore, an air bag is arranged at the front end of the catheter, an air guide channel connected with the air bag is arranged inside the catheter, and the other end of the air guide channel extends out of the catheter and is connected with the inflation device.

[0010] Furthermore, the catheter is provided with two partitions along its length direction to divide the inner cavity into three chambers, the space between the two partitions is the urinary catheterization channel, and the two partitions and the inner wall of the catheter constitute the guide wire channel and the air guide channel respectively.

[0011] Furthermore, the distance between the opening of the guidewire channel close to the spare urinary catheterization hole and the proximal side of the spare urinary catheterization hole is 20-50 mm.

[0012] Furthermore, the guide cone is provided with a boss which is detachably connected to the tube body, and the tube body is provided with a concave groove which matches with the boss.

[0013] Furthermore, a urine discharge tube communicating with the urine discharge channel is provided at the rear end of the urinary catheter, and the urine discharge tube is connected to a urine collection bag.

[0014] Furthermore, the sealing sheet is made of flexible medical silicone.

[0015] The beneficial effects of the present invention are:

[0016] By setting a spare catheter hole on the guide cone and closing it with a closing piece, setting a film on the edge of the closing piece, and setting a guide wire in the closing piece, when the catheterization effect is not good, or when the catheter hole on the catheter is observed to be blocked by a blood clot under a cystoscope, the spare catheter hole is activated, the film on the edge of the closing piece is torn with a guide wire, the closing piece is pulled away from the spare catheter hole, and the spare catheter hole is opened. Since the spare catheter hole has a much larger size than the catheter hole, the passing capacity is enhanced, and the blood clot flows out through the spare catheter hole. In order to prevent further blockage of the catheter, a crushing tooth is also set on the inner side of the closing piece. When the catheter is still blocked, the crushing tooth is guided to crush the blood clot in the vicinity of the spare catheter hole by axially moving the guide wire channel and circumferentially rotating the guide wire, so as to ensure smooth drainage of the catheter. Therefore, the time for nurses to flush the bladder due to blood clot blocking the catheter is saved, the workload of medical care is reduced, and the work efficiency is improved.

[0017] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be guided by the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings, in which:

[0019] Figure 1 It is a schematic diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of a urinary catheter;

[0021] Figure 3 for Figure 1 Cross-sectional view of the tube body along AA direction;

[0022] Figure 4 It is a schematic diagram of the closed piece;

[0023] Figure 5 This is a schematic diagram of the interior of a urinary catheter;

[0024] Description of reference numerals:

[0025] 1-catheterization hole; 2-spare catheterization hole; 3-guide cone; 4-airbag; 5-tube body; 6-guide wire; 7-inflation device; 8-air guide channel; 9-urination tube; 10-handle; 11-guide wire channel; 12-separator; 13-catheterization channel; 14-crushing teeth; 15-sealing plate; 16-film; 17-tube mouth. DETAILED DESCRIPTION

[0026] The preferred embodiments of the invention will be described in detail below with reference to the accompanying drawings. It should be understood that the preferred embodiments are only for illustrating the invention, rather than for limiting the protection scope of the invention.

[0027] like Figure 1-5 As shown, a urinary catheter device for preventing blood clot blockage includes a urinary catheter. A guide cone 3 is arranged at the front end of the urinary catheter. The guide cone has a suitable taper to facilitate introduction and avoid damaging the urethral mucosa. The guide cone is provided with a urinary catheter hole 1, which introduces urine into the urinary catheter for drainage operation.

[0028] In particular, the present embodiment is further provided with a spare urinary catheter hole 2, which is larger in size than the urinary catheter hole, and has a passing capacity of at least 3-6 times that of the urinary catheter hole, and can pass a blood clot much larger than the urinary catheter hole. The spare urinary catheter hole is closed by a closing piece 15, and an easily-tearable film 16 is provided at the edge of the closing piece. A guide wire 6 is pre-embedded in the closing piece, and a guide wire channel 11 is provided in the urinary catheter. The guide wire extends out of the urinary catheter through the guide wire channel, and a handle 10 is provided at one end extending out of the urinary catheter.

[0029] During normal catheterization, urine is introduced into the catheter through the catheter hole.

[0030] In particular, when the amount of catheterization is small or the effect is not good, or when the catheter hole on the catheter is observed to be blocked by a blood clot under cystoscopy, the spare catheter hole is activated, and the film on the edge of the closing piece is torn with a guide wire, the closing piece is pulled away from the spare catheter hole, and the spare catheter hole is opened. Since the spare catheter hole has a much larger size than the catheter hole, its passing capacity is enhanced, and the blood clot flows out through the spare catheter hole at this time, thereby alleviating the blockage problem.

[0031] Normally, the size of the spare urinary catheter hole is large enough to draw out most of the blood clots. However, in clinical practice, there are cases of severe bladder bleeding. At this time, the blood clot is too large to enter, or cannot flow after entering, thus causing blockage again. To further solve this problem, this embodiment is provided with crushing teeth 14 on the inner side of the closing piece. Through the operation of the handle, the guide wire is driven to move back and forth in the guide wire channel, and rotated to drive the crushing teeth on the closing piece to crush the blood clot in the relevant area near the spare urinary catheter hole, so that the crushed blood clot can pass normally, and the drainage of the urinary catheter is kept unobstructed.

[0032] Furthermore, the sealing piece can be extended out of the catheter through the spare sealing hole to crush the blood clot in the bladder, thereby expanding the crushing area and further reducing the risk of obstruction.

[0033] In order to ensure the operating performance of the guide wire, that is, to have the rigidity of the operating instrument, the guide wire of this embodiment is made of steel wire, which has strong tensile (compressive) strength and torsional rigidity, and can transmit torque over a long distance, thereby performing the operation of breaking up blood clots.

[0034] As an improvement of this embodiment, the spare catheter hole is a square hole, and the length and width directions of the square hole are both larger than the diameter of the catheter hole, which is conducive to the blood clot blocking the catheter hole in the urine to pass through the spare catheter hole without affecting the smooth drainage of the catheter.

[0035] Through many experiments conducted by the inventor, it is believed that the most appropriate length of the square hole is four times the diameter of the catheter hole, and the width is twice the diameter of the catheter hole, which can basically achieve normal drainage for 90% of patients.

[0036] As an improvement of this embodiment, the front end of the urinary catheter is provided with an air bag 4, and an air guide channel 8 connected to the air bag is provided in the urinary catheter. The other end of the air guide channel extends out of the urinary catheter and is connected to the inflation device 7. The urinary catheter can be fixed in the bladder by the air bag to prevent the urinary catheter from falling off and to lead out the patient's urine. In order to inflate the air bag, the inflation device of this embodiment is a manual inflation bag.

[0037] As an improvement of this embodiment, two partitions 12 are provided in the catheter to divide its inner cavity into three independent chambers. The space between the two partitions is the catheterization channel 13. The two partitions and the inner wall of the catheter form a guide wire channel 11 and an air guide channel 8 respectively.

[0038] As an improvement of this embodiment, the distance between the pipe opening 17 at one end of the guide wire channel close to the urinary catheter hole and the side closest to the spare urinary catheter is 20-50 mm. The closing piece can move a larger distance under the action of the guide wire, thereby allowing the crushing teeth on the closing piece to act on a larger area, which is more conducive to preventing blood clot blockage.

[0039] As an improvement of this embodiment, the guide cone is provided with a boss detachably connected to the tube body 5, and the tube body is provided with a concave groove matched with the boss. In order to facilitate manufacturing and assembly, the closing piece is integrally injection-molded on the guide cone, and the guide wire is solidified in the closing piece. During assembly, the guide wire on the closing piece passes through the guide wire channel integrally provided in the urinary catheter, and then the boss of the guide cone is embedded in the concave groove matched with the tube body, and they are bonded with non-toxic glue to finally form a whole.

[0040] As an improvement of this embodiment, a urine drainage tube 9 is provided at the rear end of the urinary catheter, and the urine drainage tube is connected to a urine collecting bag. The urine collecting bag is transparent, which is convenient for medical staff to observe the urine color and urine volume of the patient.

[0041] As an improvement of this embodiment, the material used for the sealing piece is flexible medical silicone. Since the sealing piece is larger than the spare urinary catheter hole in both the length and width directions, if a hard material is used, the sealing piece cannot pass through the spare urinary catheter hole. In order to allow the sealing piece to pass through the spare urinary catheter hole, a flexible medical silicone material is used, so that the sealing piece can pass through the spare urinary catheter hole more easily under the action of the guide wire.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.

Claims

1. A urinary catheter device for preventing blood clot blockage, comprising a urinary catheter, wherein a guide cone is provided at the front end of the urinary catheter, and characterized in that: The guide cone is provided with a spare urinary catheter hole, the spare urinary catheter hole is closed by a closing piece, an easily-tearable film is provided at the edge of the closing piece, the closing piece is integrally formed and provided on the guide cone, a guide wire is provided in the closing piece for tearing the film to open the spare urinary catheter hole, a guide wire channel is provided in the urinary catheter, one end of the guide wire is solidified in the closing piece, and the other end passes through the guide wire channel and extends out of the urinary catheter, a crushing tooth is provided on the inner side of the closing piece, and a handle is provided at the end of the guide wire extending out of the urinary catheter for operating the guide wire to drive the crushing tooth to crush the blood clot.

2. A urinary catheterization device for preventing blood clot blockage according to claim 1, characterized in that: The spare urinary catheter hole is a square hole, and the length direction and the width direction of the square hole are both larger than the diameter of the urinary catheter hole.

3. A urinary catheterization device for preventing blood clot blockage according to claim 1, characterized in that: An air bag is arranged at the front end of the urinary catheter, an air guide channel connected with the air bag is arranged inside the urinary catheter, and the other end of the air guide channel extends out of the urinary catheter and is connected with the inflation device.

4. A urinary catheterization device for preventing blood clot blockage according to claim 3, characterized in that: The catheter is provided with two partitions along its length direction to divide the inner cavity into three chambers. The space between the two partitions is the urinary catheterization channel. The two partitions and the inner wall of the catheter constitute the guide wire channel and the air guide channel respectively.

5. A urinary catheterization device for preventing blood clot blockage according to claim 1, characterized in that: The distance between the opening of the guide wire channel close to the spare urinary catheter hole and the proximal side of the spare urinary catheter hole is 20-50 mm.

6. A urinary catheterization device for preventing blood clot blockage according to claim 1, characterized in that: The guide cone is provided with a boss which is detachably connected to the tube body, and the tube body is provided with a concave groove which matches with the boss.

7. A urinary catheterization device for preventing blood clot blockage according to claim 1, characterized in that: A urine discharge tube communicated with the urine discharge passage is arranged at the rear end of the urinary catheter, and the urine discharge tube is connected with a urine collection bag.

8. The urinary catheterization device for preventing blood clot blockage according to claim 1, characterized in that: The sealing sheet is made of flexible medical silica gel.

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