Urethral catheter easy to dredge

Abstract

A main catheter body comprises an inner catheter and an outer protective catheter, a catheter fixator is arranged on the outer wall of the front end of the inner catheter, the outer protective catheter is arranged on the inner catheter in a sleeving mode, and the front end of the outer protective catheter is connected with the outer wall of the catheter fixator in a sealed mode; the rear end of the inner tube is connected with the rear end of the outer protective tube, and the rear end of the inner tube is used for being connected with a urine bag; the water injection pipe is connected with the ureter fixer; the flushing pipe is communicated with the inner pipe, and the other end of the flushing pipe is provided with an infusion connector matched with an injector. The bypass comprises a first connecting pipe, a second connecting pipe and a bridging pipe; the bridging pipe is used for connecting the first connecting pipe and the second connecting pipe; the main urinary catheter closing lock is arranged on the main catheter body between the first connecting tube and the second connecting tube; the infusion connector matched with the injector is arranged on the flushing pipe, so that liquid leakage from the connector during flushing can be prevented; the catheter is provided with a bypass, so that the pressure difference generated by injection and pumpback actions of the injector in the catheter can be increased, and the dredging efficiency of the catheter is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of urinary catheters, in particular to an easy-to-dredge urinary catheter. Background Art

[0002] A urinary catheter is a device that drains urine out of the bladder and is used in cases of urinary retention, urinary incontinence, perioperative period, and long-term bed rest. However, necrotic tissue or blood clots after urinary surgery can easily cause urinary catheter blockage.

[0003] When the catheter is blocked, it is necessary to use a syringe to clear the catheter. After the syringe is connected to the flushing hole of the catheter, it is necessary to repeatedly perform injection and withdrawal actions. Since the tail of the catheter is connected to the urine bag, the pressure difference generated by the injection and withdrawal actions of the syringe in the catheter is reduced. Therefore, the syringe needs to be repeatedly injected and withdrawn more times to clear the catheter, which is time-consuming and laborious. In addition, there is no matching connector between the flushing hole of the catheter and the syringe. In clinical practice, a disposable drainage bag connector is usually cut and a syringe is installed to connect it. When injecting and withdrawing sterile saline, due to the pressure of the catheter lumen, these connected parts are under pressure and leakage occurs. If the leakage is serious, it will further lead to insufficient pressure in the catheter lumen, making it more difficult to clear the catheter, which will cause the patient to need a second catheterization, resulting in the risk of urinary tract damage and infection, causing secondary harm to the patient, and also increasing medical costs. If you encounter an infectious disease patient, occupational exposure is likely to occur.

[0004] Therefore, there is an urgent need to develop a catheter that can be matched with a syringe and is easy to clear, so as to reduce the risk of secondary injury to the patient due to leakage and quickly complete the catheter clearing work. Summary of the invention

[0005] In view of at least one of the problems in the above-mentioned prior art, the purpose of the utility model is to provide an easy-to-clear urinary catheter, wherein the flushing hole of the urinary catheter is provided with an infusion connector matching with a syringe to prevent leakage from the connector during flushing; the urinary catheter is provided with a bypass, which can increase the pressure difference generated in the urinary catheter by the injection and withdrawal actions of the syringe compared to the original structure, thereby improving the clearing efficiency of the urinary catheter.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An easy-to-dredge urinary catheter comprising

[0008] The main body comprises an inner tube and an outer protective tube, wherein a urinary catheter holder is arranged on the outer wall of the front end of the inner tube; the outer protective tube is sleeved on the inner tube, and the front end thereof is sealedly connected to the outer wall of the urinary catheter holder; the rear end of the inner tube is connected to the rear end of the outer protective tube, and the rear end of the inner tube is used to connect to a urine bag;

[0009] A water injection pipe, one end of which extends between the inner pipe and the outer protective pipe and is connected to the urinary catheter holder;

[0010] A flushing tube, one end of which passes through the outer protective tube and is connected to the inner tube, and the other end of the flushing tube is provided with an infusion connector matching the syringe;

[0011] A bypass, comprising a first connecting pipe, a second connecting pipe and a bridge pipe, wherein the first connecting pipe and the second connecting pipe are located at two different positions of the main pipe body, and the first connecting pipe and the second connecting pipe are respectively connected to the inner pipe through the outer protective pipe; the bridge pipe is used to connect the first connecting pipe and the second connecting pipe; a first one-way valve is provided in the first connecting pipe, and a second one-way valve is provided in the second connecting pipe, and the first one-way valve and the second one-way valve enable the liquid flow to flow from the first connecting pipe to the second connecting pipe through the bridge pipe;

[0012] The main urinary tube closing lock is arranged on the main tube body between the first connecting tube and the second connecting tube.

[0013] Preferably, the urinary catheter holder is an elastic balloon that can be filled with water or air.

[0014] Preferably, the bridging tube is detachably connected to the first connecting tube and the second connecting tube.

[0015] Preferably, the first connecting pipe and the second connecting pipe are on the same side of the main pipe.

[0016] Preferably, the flushing pipe is located in front of the first connecting pipe on the main pipe body.

[0017] Preferably, the bridging tube is a transparent hose.

[0018] Preferably, a liquid inlet hole is provided at the front end of the inner tube.

[0019] Preferably, a backflow check valve is provided at the water injection port of the water injection pipe.

[0020] The utility model adopts the above technical solution, which has the following advantages:

[0021] 1. The easy-to-dredge urinary catheter and flushing tube provided by the utility model can be directly connected to various spiral infusion device connectors and are suitable for various types of syringes. The connection between the two has good firmness and sealing, thereby reducing urinary tract infection and urinary tract damage caused by leakage and reducing the harm caused by secondary intubation of patients.

[0022] 2. The easy-to-clear urinary catheter and bypass structure provided by the utility model can ensure a better pressure difference inside the inner tube during syringe injection and withdrawal, making it easier to clear blockages, and can ensure the patency of the urinary catheter; compared with traditional urinary catheters, the flushing pressure intensity is increased during clearing, thereby improving the probability of clearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of a bypass unconnected structure of an easy-to-dredge urinary catheter provided by an embodiment of the utility model.

[0024] Figure 2 It is a schematic diagram of the bypass communication structure of the easy-to-dredge urinary catheter provided in this embodiment of the utility model.

[0025] Reference numerals in the figures:

[0026] 1 is the main body, 101 is the inner tube, 102 is the outer protective tube, 103 is the liquid inlet, 2 is the water injection tube, 3 is the flushing tube, 301 is the infusion connector, 4 is the bypass, 401 is the first connecting tube, 402 is the second connecting tube, 403 is the bridge tube, 404 is the first one-way valve, 405 is the second one-way valve, 5 is the catheter holder, 6 is the urine bag, and 7 is the main catheter closing lock. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the system or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "assembly", "setting", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The utility model provides an easy-to-dredge urinary catheter, wherein the flushing hole of the urinary catheter is provided with an infusion joint matched with a syringe to prevent leakage from the joint during flushing; the urinary catheter is provided with a bypass, which, compared with the original structure, can increase the pressure difference generated in the urinary catheter by the injection and withdrawal actions of the syringe, thereby improving the dredging efficiency of the urinary catheter.

[0031] Below, the embodiments of the utility model are described in detail with reference to the accompanying drawings.

[0032] Example

[0033] Please refer to Figure 1 to Figure 2 The embodiment provides an easy-to-dredge urinary catheter, comprising a main body 1, a water injection pipe 2, a flushing pipe 3 and a bypass 4;

[0034] The main body 1 includes an inner tube 101 and an outer protective tube 102. A urinary catheter holder 5 is arranged on the outer wall of the front end of the inner tube 101. The outer protective tube 102 is sleeved on the inner tube 101, and the front end of the outer protective tube 102 is sealed and connected to the outer wall of the urinary catheter holder 5. The rear end of the inner tube 101 is connected to the rear end of the outer protective tube. The rear end of the inner tube 101 is used to connect with the urine bag 6. Specifically, the plug of the urine bag 6 is directly inserted into the rear end of the main body 1, that is, the rear end of the inner tube 101. The two are interference fit to achieve a sealed connection.

[0035] One end of the water injection pipe 2 extends between the inner tube 101 and the outer protective tube 102 and is connected to the urinary catheter holder 5;

[0036] One end of the flushing tube 3 passes through the outer protective tube 102 and is connected to the inner tube 101. The other end of the flushing tube 3 is provided with an infusion connector 301 matching the syringe.

[0037] The bypass 4 includes a first connecting pipe 401, a second connecting pipe 402 and a bridge pipe 403. The first connecting pipe 401 and the second connecting pipe 402 are located at two different positions of the main body 1, and the first connecting pipe 401 and the second connecting pipe 402 are respectively connected to the inner pipe 101 through the outer protective pipe 102. Specifically, the outer protective pipe 102 is provided with two holes matching the first connecting pipe 401 and the second connecting pipe 402. The first connecting pipe 401 and the second connecting pipe 402 are respectively connected to the inner pipe 101 through the corresponding holes, and the first connecting pipe 401 and the second connecting pipe 402 are sealedly connected to the outer protective pipe 102; the bridge pipe 403 is used to connect the first connecting pipe 401 and the second connecting pipe 402; a first one-way valve 404 is provided in the first connecting pipe 401, and a second one-way valve 405 is provided in the second connecting pipe 402. The first one-way valve 404 and the second connecting pipe 402 allow the liquid flow to flow only from the first connecting pipe 401 to the second connecting pipe 402 through the bridge pipe 403;

[0038] The main urinary tube closing lock 7 is arranged on the main tube body 1 between the first connecting tube 401 and the second connecting tube 402 .

[0039] In a specific application, the inner tube 101, the outer protective tube 102, the water injection tube 2, the flushing tube 3, the first connecting tube 401, the second connecting tube 402 and the bridge tube 403 are all made of soft tubes and can be made of silicone material. The outer protective tube 102 is sleeved on the outside of the inner tube 101, and there is a gap between the inner wall of the outer protective tube 102 and the inner wall of the inner tube 101. A through hole can be opened on the outer protective tube 102, and the water injection tube 2 passes through the through hole. The water injection tube 2 is connected to the urinary catheter holder 5 through the gap; the water injection tube 2 and the outer protective tube 102 are sealed.

[0040] The urinary catheter holder 5 is an elastic balloon that can be filled with water or air, and the balloon is made of silicone. When the urinary catheter is inserted into the patient's urethra, the urinary catheter needs to be fixed in the urethra. The water injection port of the water injection pipe 2, that is, the end of the water injection pipe 2 is provided with a non-return valve. The water injection pipe 2 and the non-return valve structure are prior art. Physiological saline is injected into the balloon through the water injection pipe 2 to expand the balloon and fix the urinary catheter in the urethra, thereby playing a fixing role and preventing the urinary catheter from slipping.

[0041] A liquid inlet hole 103 is provided at the front end of the inner tube 101 , and urine enters the inner tube 101 through the liquid inlet hole 103 and eventually flows into the urine bag 6 .

[0042] The infusion connector 301 can adopt an infusion connector with a spiral connector in the prior art products. The infusion connector 301 is threadedly connected to the flushing tube 3, which can ensure the firmness and sealing of the connection with the flushing tube 3. When the inner tube 101 needs to be flushed and unblocked, the infusion connector 301 is directly connected to the syringe for flushing operation. The infusion connector 301 is a dedicated syringe connector with good matching. When the syringe injects and withdraws sterile saline, the pressure of the catheter lumen will not cause these connected parts to be pressurized and leak, avoiding the risk of urinary tract damage and infection caused by leakage of the connector connection, and improving the safety of operation. When the syringe is removed, the infusion connector 301 has a sealing valve structure to achieve the sealing of the infusion connector 301 and prevent urine from flowing out of the flushing tube 3.

[0043] When the urinary catheter is blocked, a syringe can be directly inserted through the infusion connector 301 to flush and clear the inner tube 301 .

[0044] When the patient has urinary tract infection or hematuria, the infusion connector 301 is directly disinfected with iodine tincture, and the infusion set is connected to perform bladder flushing and aseptic operation to reduce urinary tract infection.

[0045] Therefore, the urinary catheter with the infusion connector 301 is more convenient to use and provides safety in use.

[0046] In this embodiment, the bridge tube 403 is detachably connected to the first connecting tube 401 and the second connecting tube 402 .

[0047] In a specific application, the first connecting pipe 401 is located in front of the second connecting pipe 402 .

[0048] When the inner tube 101 of the urinary catheter 1 is blocked and needs to be unblocked, the first connecting tube 401 and the second connecting tube 402 are connected by using the bridge tube 403, and the ends of the bridge tube 403 are respectively inserted into the first connecting tube 401 and the second connecting tube 402, and an interference fit method can be used to ensure the sealing of the connection.

[0049] The bridge tube 403 is a transparent hose. The inner diameter of the bridge tube 403 is smaller than the inner diameter of the inner tube 101. The dredging status of the urinary catheter can be observed through the bridge tube 403. When the urinary catheter is in normal use, there is no need to connect the bridge tube 403. It is designed to be independently packaged and destroyed after use and cannot be reused. The bridge tube 403 is designed to be independently packaged and destroyed after use and cannot be reused.

[0050] The first connecting pipe 401 and the second connecting pipe 402 are on the same side of the main body 1 and face each other, so that the bridge pipe 403 can connect the two together.

[0051] The flushing pipe 3 is located in front of the first connecting pipe 401 on the main body 1, so that the position where the flushing pipe 3 communicates with the inner pipe 101 is located between the blockage and the position where the first connecting pipe 401 communicates with the inner pipe 101.

[0052] In this embodiment, the first one-way valve 404 in the first connecting tube 401 and the second one-way valve 405 in the second connecting tube 402 can adopt existing product technology. After the bridge tube 403 is connected, the first one-way valve 404 and the second one-way valve 405 are opened, and the main urinary catheter closing lock 7 is closed. The urine in the catheter can only flow from the first connecting tube 401 to the second connecting tube 402 through the bridge tube 403, and no backflow will occur.

[0053] The main urinary tube closing lock 7 is a product of the prior art, and can close the main tube 1 between the first connecting tube 401 and the second connecting tube 402 .

[0054] When the easy-to-dredge urinary catheter of this embodiment is in use, if the inner tube 101 is blocked, the main urinary tube closing lock 7 is closed, and the first connecting tube 401 and the second connecting tube 402 are connected by the bridge tube 403, so that the two ends of the main urinary tube closing lock 7 are connected in one direction through the bypass, and 15 ml of 0.9% saline is drawn with a 20 ml syringe and inserted into the infusion connector 301 of the flushing tube 3, and 15 ml of saline is injected and the syringe is repeatedly pushed and pulled to perform injection and withdrawal actions; during injection, the pressure of the inner tube 101 is increased, and since the main body 1 is closed by the main urinary tube closing lock 7, the inner diameter of the bridge tube 403 is smaller than the inner diameter of the inner tube 101; therefore, during injection, the pressure of the inner tube 101 is increased. The pressure of the inner tube 101 is maintained, and the connection with the urine bag 6 is maintained; when withdrawing, the first one-way valve 404 is a one-way valve, and the liquid behind it cannot flow back and be withdrawn by the syringe, and a greater negative pressure is generated in the inner tube 101. Therefore, compared with the catheter without bypass 4, injection and withdrawal cause a greater pressure difference in the inner tube 101, so it is easier to clear the blockage; when the inner tube 101 is cleared, urine will flow, which can be observed in time through the bypass 4. After the catheter is unobstructed, the main urinary catheter closing lock 7 is unlocked, and urine can flow directly into the urine bag 6, the first one-way valve 404 and the second one-way valve 405 are closed, and the bridge tube 403 is removed, and the disposable bridge tube 403 is destroyed and cannot be used again. The structure of the bypass 4 can not only ensure that there is a better pressure difference inside the inner tube 101 during the injection and withdrawal of the syringe, and the blockage is easier to clear, but also ensure the patency of the catheter. Compared with the traditional urinary catheter, the easy-to-dredge urinary catheter of this embodiment has increased flushing pressure intensity during dredging, and will not leak, thereby improving the probability of dredging. The flushing tube 3 of the urinary catheter can be directly connected to various spiral infusion device connectors, suitable for various types of syringes, convenient to manufacture and sterile; thereby reducing urinary tract infection and urinary tract damage caused by leakage, reducing the harm caused by secondary intubation of patients, reducing medical costs and hospitalization days, and increasing patient satisfaction.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. An easy-to-dredge urinary catheter, characterized in that: include The main body comprises an inner tube and an outer protective tube, wherein a urinary catheter holder is arranged on the outer wall of the front end of the inner tube; the outer protective tube is sleeved on the inner tube, and the front end thereof is sealedly connected to the outer wall of the urinary catheter holder; the rear end of the inner tube is connected to the rear end of the outer protective tube, and the rear end of the inner tube is used to connect to a urine bag; A water injection pipe, one end of which extends between the inner pipe and the outer protective pipe and is connected to the urinary catheter holder; A flushing tube, one end of which passes through the outer protective tube and is connected to the inner tube, and the other end of the flushing tube is provided with an infusion connector matching the syringe; A bypass, comprising a first connecting pipe, a second connecting pipe and a bridge pipe, wherein the first connecting pipe and the second connecting pipe are located at two different positions of the main pipe body, and the first connecting pipe and the second connecting pipe are respectively connected to the inner pipe through the outer protective pipe; the bridge pipe is used to connect the first connecting pipe and the second connecting pipe; a first one-way valve is provided in the first connecting pipe, and a second one-way valve is provided in the second connecting pipe, and the first one-way valve and the second one-way valve enable the liquid flow to flow from the first connecting pipe to the second connecting pipe through the bridge pipe; The main urinary tube closing lock is arranged on the main tube body between the first connecting tube and the second connecting tube.

2. The easy-to-dredge urinary catheter according to claim 1, characterized in that: The urinary catheter fixer is an elastic balloon which can be filled with water or air.

3. The easy-to-dredge urinary catheter according to claim 1, characterized in that: The bridge pipe is detachably connected to the first connecting pipe and the second connecting pipe.

4. The easy-to-dredge urinary catheter according to claim 1, characterized in that: The first connecting pipe and the second connecting pipe are on the same side of the main pipe.

5. The easy-to-dredge urinary catheter according to claim 1, characterized in that: The flushing pipe is located in front of the first connecting pipe on the main pipe body.

6. The easy-to-dredge urinary catheter according to claim 1, characterized in that: The bridge tube is a transparent hose.

7. The easy-to-dredge urinary catheter according to claim 1, characterized in that: The front end of the inner tube is provided with a liquid inlet hole.

8. The easy-to-dredge urinary catheter according to claim 1, characterized in that: A backflow prevention valve is arranged at the water injection port of the water injection pipe.

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