Three-cavity catheter

Abstract

The utility model discloses a three-cavity catheter which comprises a catheter body, a catheter head is arranged at the end, inserted into the bladder of a patient, of the catheter body, and a drainage connector, a water injection connector and a flushing and medicine injection opening which are connected with a drainage bottle are formed in the other end of the catheter body. One side of the other end of the catheter body is provided with an inflation bag connector, an air bag is arranged at the end, inserted into the bladder of a patient, of the catheter body and located at the position close to the catheter head, and the inflation bag connector is communicated with the air bag through an inflation bag channel formed in the side wall of the catheter body; a water injection hard valve is arranged on the outer side of the water injection interface; the water injection hard valve is used for being connected with a water injector, and the protective cap is in threaded connection with the water injection hard valve. By arranging the protective cap, during use, the protective cap is taken down from the water injection hard valve for water injection flushing, and when flushing is suspended, the protective cap is connected to the outer side of the water injection hard valve to protect the water injection connector and prevent the water injection connector from being polluted.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical device cleaning, and specifically relates to a three-lumen urinary catheter. Background Art

[0002] The three-chamber catheter is one of the special catheters for urology. It has a thicker diameter and is less clinically used. It is suitable for patients who need water flushing in urology. The three-chamber catheter is frequently used after transurethral surgery in urology. The three-chamber catheter has three chambers, one of which is used to drain urine from the bladder; another is used to inject water into the balloon, which can fix the catheter and prevent urine leakage; and the other is used to infuse drugs or clean the bladder, which can prevent blood clots from condensing in the bladder and causing urinary tract obstruction.

[0003] At present, the prior art, CN219579684U discloses a three-way urinary catheter with a sterile infusion connector structure, including a urinary catheter body, a urinary catheter hole is provided on one end of the urinary catheter body inserted into the patient's bladder, and a drainage interface connected to a drainage bottle is provided on the other end of the urinary catheter body; a flushing interface is provided on the other side of the other end of the urinary catheter body, and a sterile infusion connector structure is provided on the flushing interface to facilitate the needle to be plugged into the upper part thereof. The utility model is provided with a sterile infusion connector structure on the flushing interface, and the needle can be directly plugged into the sterile infusion connector structure, avoiding multiple punctures of the flushing interface, and the connection is safe, fast and reliable, and the flushing interface can be sealed when not flushed, which not only isolates the air, but also effectively prevents leakage from the flushing interface.

[0004] The above-mentioned prior art also has the following defects: using a sterile rubber joint and repeatedly inserting and removing the needle will make the sterile rubber joint more likely to be contaminated. However, if the contaminated sterile rubber joint is placed in the flushing joint for a long time, it will make the liquid in the flushing joint more likely to be contaminated. This method is not advisable. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] In order to solve the technical problem pointed out in the background technology that the contaminated sterile rubber joint is placed in the flushing joint for a long time, which makes it easier for the liquid in the flushing joint to be contaminated, the utility model adopts the following technical solution.

[0007] A three-lumen urinary catheter comprises a urinary catheter body, wherein a catheter head is arranged on one end of the urinary catheter body inserted into the patient's bladder, and a drainage interface, a water injection interface and a flushing and injection port connected to a drainage bottle are arranged on the other end of the urinary catheter body; a bag filling interface is arranged on one side of the other end of the urinary catheter body, and an air bag is arranged on the end of the urinary catheter body inserted into the patient's bladder and close to the catheter head, and the bag filling interface is connected to the air bag through a bag filling channel arranged on the side wall of the urinary catheter body; a water injection hard valve is arranged on the outer side of the water injection interface; the water injection hard valve is used to be connected to a water injector, and further comprises: a protective cap, which is threadedly connected to the water injection hard valve.

[0008] Optionally, an outer wall of the water injection hard valve is provided with an external thread, and an inner wall of the protective cap is provided with an internal thread, the internal thread is adapted to the external thread, and the protective cap is threadably connected to the external thread of the water injection hard valve via the internal thread.

[0009] Optionally, the protective cap is a sterile protective cap for disposable use.

[0010] Optionally, a protective ring is coaxially arranged inside the protective cap, the length of the protective ring is greater than the length of the protective cap, the protective ring is inserted into the water injection hard valve and is located between the water injection hard valve and the water injection interface, for protecting the water injection interface.

[0011] Optionally, the protective ring is made of silicone.

[0012] Optionally, anti-slip grooves are provided on the outer side wall of the protective cap.

[0013] Optionally, a connecting rope is further included, one end of which is connected to the protective cap, and the other end of which is connected to the catheter body.

[0014] Optionally, a card slot is provided on the outer side of the protective cap, and a card block is provided at the end of the connecting rope. The card block can be carded in the card slot to card-connect the connecting rope and the protective cap.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] A three-lumen urinary catheter comprises a urinary catheter body, wherein a catheter head is provided on one end of the urinary catheter body inserted into the patient's bladder, and a drainage interface, a water injection interface and a flushing and injection port connected to a drainage bottle are provided on the other end of the urinary catheter body; a bag filling interface is provided on one side of the other end of the urinary catheter body, and an air bag is provided on the end of the urinary catheter body inserted into the patient's bladder and located near the catheter head, and the bag filling interface is connected to the air bag through a bag filling channel provided on the side wall of the urinary catheter body; a water injection hard valve is provided on the outside of the water injection interface; the water injection hard valve is used to connect with a water injector, and further comprises: a protective cap, which is threadedly connected to the water injection hard valve. By providing the protective cap, when in use, the protective cap is removed from the water injection hard valve to perform water injection and flushing. When flushing is paused, the protective cap is connected to the outside of the water injection hard valve to protect the water injection interface and prevent the water injection interface from being contaminated. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a three-lumen urinary catheter;

[0018] Figure 2 It is a schematic diagram of the partial structure of a three-lumen urinary catheter;

[0019] Figure 3 It is a schematic diagram of the protective cap structure;

[0020] Figure 4 for Figure 3 A cross-sectional view of

[0021] Figure 5 It is another structural schematic diagram of a protective cap;

[0022] Figure 6 It is another structural schematic diagram of a protective cap;

[0023] Figure 7 It is another structural schematic diagram of a protective cap.

[0024] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0025] 1. Catheter body; 2. Catheter head; 3. Drainage interface; 4. Water injection interface; 5. Flushing and injection port; 6. Air bag; 7. Water injection hard valve; 8. Protective cap; 9. External thread; 10. Internal thread; 11. Protective ring; 12. Anti-slip pattern; 13. Connecting rope; 14. Card slot; 15. Card block. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0029] like Figure 1-Figure 7 As shown, the present application provides a three-chamber urinary catheter, including a urinary catheter body 1, on one end of the urinary catheter body 1 inserted into the patient's bladder is provided a urinary catheter head 2, on the other end of the urinary catheter body 1 are provided a drainage interface 3 connected to a drainage bottle, a water injection interface 4, and a flushing injection port 5; a bag filling interface is provided on one side of the other end of the urinary catheter body 1, on the end of the urinary catheter body 1 inserted into the patient's bladder and located near the urinary catheter head 2 is provided an air bag 6, the bag filling interface is connected to the air bag 6 through a bag filling channel arranged on the side wall of the urinary catheter body 1; a water injection hard valve 7 is arranged on the outside of the water injection interface 4; the water injection hard valve 7 is used to be connected to a water injector, and also includes: a protective cap 8, the protective cap 8 is threadedly connected to the water injection hard valve 7.

[0030] In this embodiment, the three-lumen urinary catheter can be directly purchased, and the present application can directly improve the existing three-lumen urinary catheter. The present application does not improve the existing three-lumen urinary catheter.

[0031] In this embodiment, the purpose of providing the water injection hard valve 7 is to facilitate the connection between the water injection interface 4 and the water injector. The water injector can be a syringe or other structures, which is not limited in this application.

[0032] In this embodiment, the protective cap 8 and the water injection hard valve 7 can be connected by plugging. For example, the protective cap 8 is made of silicone material, which has a certain elasticity. When the water injection is suspended or ended, the protective cap 8 is directly buckled on the outside of the water injection hard valve 7 to protect the water injection interface 4 in the water injection hard valve 7. Of course, the protective cap 8 can also be connected to the water injection hard valve 7 by threading. For example, an external thread 9 is provided on the outer wall of the water injection hard valve 7, and an internal thread 10 is provided on the inner wall of the protective cap 8. The internal thread 10 is adapted to the external thread 9, and the protective cap 8 is threadedly connected to the external thread 9 of the water injection hard valve 7 through the internal thread 10. The threaded connection method can improve the connection stability between the protective cap 8 and the water injection hard valve 7 and prevent the protective cap 8 from being knocked off.

[0033] In this embodiment, in this application, a protective cap 8 is provided. When in use, the protective cap 8 is removed from the water injection hard valve 7 for water injection and flushing. When the flushing is paused, the protective cap 8 is connected to the outside of the water injection hard valve 7 to protect the water injection interface 4 and prevent the water injection interface 4 from being contaminated.

[0034] In a specific embodiment, the protective cap 8 is a sterile protective cap 8 for single use.

[0035] In this embodiment, the protective cap 8 is disposable. Before use, the protective cap 8 is packaged in a sterile packaging bag. When in use, after removing the packaging, the protective cap 8 is taken out and threadedly connected to the water injection hard valve 7 to protect the water injection interface 4 in the water injection hard valve 7.

[0036] In a specific embodiment, a protective ring 11 is coaxially arranged inside the protective cap 8. The length of the protective ring 11 is greater than the length of the protective cap 8. The protective ring 11 is inserted into the water injection hard valve 7 and is located between the water injection hard valve 7 and the water injection interface 4, so as to protect the water injection interface 4.

[0037] like Figure 3 , Figure 4 As shown, a protective ring 11 is provided inside the protective cap 8, and the material of the protective ring 11 is a silicone material. To facilitate plugging, the purpose of providing the protective ring 11 is that when the protective ring 11 is threadedly connected to the water injection hard valve 7, the protective ring 11 is located between the water injection hard valve 7 and the water injection interface 4, and the soft contact allows the protective ring 11 to protect the water injection interface 4.

[0038] In a specific embodiment, an anti-slip pattern 12 is provided on the outer side wall of the protective cap 8. When used by a nurse, the friction between the protective cap 8 and the nurse's hand can be increased, making it easier for the nurse to twist the protective cap 8 so as to thread the protective cap 8 onto the water injection hard valve 7.

[0039] In a specific embodiment, a connecting rope 13 is further included, one end of which is connected to the protective cap 8, and the other end is connected to the catheter body 1. In this embodiment, the connecting rope 13 is provided, and when the water injection and flushing are suspended or finished, the protective cap 8 stored in the sterile packaging bag is taken out, one end of the connecting rope 13 is connected to the protective cap 8, and the other end is connected to the catheter body 1, and then the protective cap 8 is threadedly connected to the outside of the water injection hard valve 7 to protect the water injection joint inside the water injection hard valve 7.

[0040] In one embodiment, see Figure 5 Figure 6 As shown, a card slot 14 is provided on the outer side of the protective cap 8 , and a card block 15 is provided at the end of the connecting rope 13 , and the card block 15 can be carded in the card slot 14 to card-connect the connecting rope 13 with the protective cap 8 .

[0041] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A three-chamber urinary catheter, comprising a urinary catheter body (1), a catheter head (2) being provided at one end of the urinary catheter body (1) inserted into the patient's bladder, a drainage interface (3) connected to a drainage bottle, a water injection interface (4), and a flushing and injection port (5) being provided at the other end of the urinary catheter body (1); a bag filling interface being provided on one side of the other end of the urinary catheter body (1), an air bag (6) being provided at the end of the urinary catheter body (1) inserted into the patient's bladder and located near the catheter head (2), the bag filling interface being connected to the air bag (6) through a bag filling channel provided on the side wall of the urinary catheter body (1); characterized in that: A water injection hard valve (7) is arranged on the outside of the water injection interface (4); the water injection hard valve (7) is used to be connected to a water injector, and further comprises: a protective cap (8), the protective cap (8) being threadedly connected to the water injection hard valve (7).

2. The triple-lumen urinary catheter according to claim 1, characterized in that: An external thread (9) is provided on the outer wall of the water injection hard valve (7), and an internal thread (10) is provided on the inner wall of the protective cap (8). The internal thread (10) is adapted to the external thread (9), and the protective cap (8) is threadedly connected to the external thread (9) of the water injection hard valve (7) via the internal thread (10).

3. The triple-lumen urinary catheter according to claim 1, characterized in that: The protective cap (8) is a sterile protective cap (8) and is disposable.

4. The triple-lumen urinary catheter according to claim 1, characterized in that: A protective ring (11) is coaxially arranged inside the protective cap (8); the length of the protective ring (11) is greater than the length of the protective cap (8); the protective ring (11) is inserted into the interior of the water injection hard valve (7) and is located between the water injection hard valve (7) and the water injection interface (4), and is used to protect the water injection interface (4).

5. The triple-lumen urinary catheter according to claim 4, characterized in that: The material of the protective ring (11) is silicone material.

6. The triple-lumen urinary catheter according to claim 1, characterized in that: Anti-slip grooves (12) are provided on the outer side wall of the protective cap (8).

7. The triple-lumen urinary catheter according to claim 1, characterized in that: It also comprises a connecting rope (13), one end of which is connected to the protective cap (8), and the other end of which is connected to the urinary catheter body (1).

8. The triple-lumen urinary catheter according to claim 7, characterized in that: A clamping groove (14) is provided on the outer side of the protective cap (8), and a clamping block (15) is provided at the end of the connecting rope (13); the clamping block (15) can be clamped into the clamping groove (14) to clamp and connect the connecting rope (13) and the protective cap (8).

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