Novel perfusion catheter

Abstract

The utility model discloses a novel perfusion catheter which comprises a main catheter body, a perfusion connector, an excretion connector, a water injection connector, a catheter head, a positioning balloon and a slow release balloon. The main tube body is a three-cavity tube; a drain hole is formed in the side wall of the ureter head; the slow-release balloon is also arranged on the main catheter body and located on the rear side of the positioning balloon, a second water through hole communicated with the slow-release balloon is formed in the main catheter body, and meanwhile the second water through hole is communicated with the perfusion catheter; wherein a large number of small holes are formed in the slow-release balloon. The slow-release balloon is arranged, and a large number of small holes are formed in the slow-release balloon, so that the release speed of liquid medicine can be reduced, and strong emergency reaction of the bladder of a patient is avoided; the switching valve with the sliding valve core is arranged, so that the slow-release balloon has enough pressure to release liquid medicine into the bladder, and the liquid medicine is prevented from flowing back to the injector; the threaded connection boss is arranged and can be connected with a spiral opening of an injector, so that the injector and the perfusion connector are connected more firmly and are not prone to falling off.

Description

Technical Field

[0001] The utility model relates to the field of clinical nursing devices in urology, in particular to a novel perfusion catheter. Background Art

[0002] With the continuous development of medical technology, urinary catheters, as a common medical device, play an increasingly important role in clinical practice. Especially in bladder instillation therapy, the application of urinary catheters is particularly important. Traditional bladder instillation methods often have problems such as uneven drug distribution and poor treatment effect.

[0003] In the prior art, the infusion catheter adopts a special design, which can accurately deliver the drug to the inside of the bladder, while avoiding drug leakage and waste. In addition, the infusion catheter also has the advantages of easy operation, safety and reliability, which greatly improves the patient's treatment experience and satisfaction.

[0004] However, although the irrigation catheter technology has achieved certain results, there are still some technical challenges and problems to be solved. For example, the diameter of the flushing hole in the existing irrigation catheter is relatively large, and the liquid medicine will be released too quickly because the flushing hole is too large, which will cause the patient's bladder to have a strong emergency response and produce obvious discomfort. Therefore, seeking a more efficient and convenient irrigation method that reduces discomfort during treatment and reduces the incidence of complications has become an important research direction in the current medical field. Summary of the invention

[0005] In order to overcome the defects of the prior art, the purpose of the utility model is to provide a novel irrigation catheter to solve the problem that the flushing hole of the irrigation catheter in the prior art is large and the drug solution is released too quickly, causing obvious discomfort in the patient's bladder.

[0006] To this end, the utility model proposes a novel perfusion catheter, comprising a main body, a perfusion interface, an excretion interface, a water injection interface, a urinary catheter head, a positioning balloon and a slow-release balloon; the main body is a three-lumen tube, having an excretion pipeline, a water injection pipeline and an perfusion pipeline; the urinary catheter head is arranged at the front end of the main body, and a drainage hole is arranged on the side wall of the urinary catheter head; the positioning balloon is arranged on the main body and located at the rear side of the urinary catheter head, and the main body is provided with a water hole one connected to the positioning balloon, and the water hole one is connected to the water injection pipeline; the slow-release balloon is also arranged on the main body and located at the rear side of the positioning balloon, and the main body is provided with a water hole two connected to the slow-release balloon, and the water hole two is connected to the perfusion pipeline; wherein a large number of small holes are opened on the slow-release balloon.

[0007] Furthermore, a plurality of threaded connection bosses are provided at the end of the perfusion interface.

[0008] Furthermore, the threaded connection bosses are distributed in a ring shape at the end of the perfusion interface.

[0009] Furthermore, a switch valve is provided on the perfusion interface, and a sliding valve core is provided inside the switch valve.

[0010] Furthermore, the connection between the catheter head and the main body is in an arc transition, so that the catheter head is tilted at a certain angle.

[0011] Furthermore, the drainage hole is communicated with the drainage pipe of the main body.

[0012] Furthermore, the drainage interface is communicated with the drainage pipe.

[0013] Furthermore, the perfusion interface is communicated with the perfusion pipeline.

[0014] Furthermore, the water injection interface is connected to the water injection pipeline.

[0015] Furthermore, a developing line is also provided on the main tube.

[0016] The novel perfusion catheter provided by the utility model can reduce the release speed of the medicine liquid and avoid the patient's bladder from having a strong emergency reaction by arranging a slow-release balloon and opening a large number of small holes on the slow-release balloon; by arranging a switch valve with a sliding valve core, the slow-release balloon has sufficient pressure to release the medicine liquid into the bladder and avoid the medicine liquid from flowing back into the syringe; by arranging a threaded connection boss, it can be connected with the spiral mouth of the syringe, so that the connection between the syringe and the perfusion interface is more firm and not easy to fall off.

[0017] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of the novel perfusion catheter of the utility model;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the main body of the novel perfusion catheter of the utility model;

[0021] Description of Reference Numerals

[0022] 1. Main body; 2. Infusion interface; 3. Drainage interface; 4. Water injection interface; 5. Catheter head; 6. Positioning balloon; 7. Slow-release balloon; 11. Drainage pipeline; 12. Infusion pipeline; 13. Development line; 14. Water injection pipeline; 21. Sliding valve core; 22. Threaded connection boss; 51. Drainage hole; 61. Water hole one; 71. Water hole two. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] like Figure 1 As shown, the novel perfusion urinary catheter of the utility model comprises: a main body 1, a perfusion interface 2, a drainage interface 3, a water injection interface 4, a urinary catheter head 5, a positioning balloon 6 and a slow-release balloon 7.

[0025] Specifically, Figure 1 , Figure 2 As shown, the main body 1 is a three-lumen tube, having a drainage pipe 11, a water injection pipe 14 and a perfusion pipe 12. The perfusion interface 2, the drainage interface 3 and the water injection interface 4 are respectively connected to the tail of the main body 1, and the perfusion interface 2 is connected to the perfusion pipe 12 of the main body 1, the drainage interface 3 is connected to the drainage pipe 11 of the main body 1, and the water injection interface 4 is connected to the water injection pipe 14 of the main body 1; in addition, a developing line 13 is also provided on the main body 1, so that the flow of the liquid in the main body 1 can be viewed more clearly.

[0026] like Figure 1 As shown, the catheter head 5 is arranged at the front end of the main body 1, and a drainage hole 51 is arranged on the side wall of the catheter head 5, and the drainage hole 51 is connected to the drainage pipe 11 of the main body 1; the drainage is conducted through the drainage hole 51 on the catheter head 5, and the drainage pipe 11 is then connected to the external drainage device through the drainage interface 3, so that the urine in the bladder can be completely drained to the outside, achieving drainage without dead angles and achieving better treatment effects. Among them, the connection between the catheter head 5 and the main body 1 is an arc transition, so that the catheter head 5 is tilted at a certain angle relative to the main body 1. When the attending physician inserts the catheter from the urethra into the bladder, the tilted catheter head 5 cooperates with the curved urethra, which is conducive to its rapid movement in the catheter and reduces the insertion time.

[0027] The positioning balloon 6 is arranged on the main body 1 and is located at the rear side of the urinary catheter head 5. The main body 1 is provided with a water hole 61 connected to the positioning balloon 6, and the water hole 61 is connected to the water injection pipe 14. By injecting water or gas from the water injection interface 4, the positioning balloon 6 is inflated, and the inflated positioning balloon 6 cooperates with the bladder neck, thereby positioning the entire urinary catheter and preventing it from falling automatically. Among them, a one-way valve is provided on the water injection interface 4. After the medical staff finishes the water injection and withdraws the syringe, the positioning balloon 6 can still maintain pressure for a certain period of time.

[0028] The slow-release balloon 7 is also arranged on the main body 1 and is located at the rear side of the positioning balloon 6. The main body 1 is provided with a second water hole 71 connected to the slow-release balloon 7, and the second water hole 71 is connected to the infusion pipe 12. Among them, a large number of small holes are opened on the slow-release balloon 7, and the liquid medicine infused into the slow-release balloon 7 is slowly released into the bladder through the small holes. During the liquid medicine infusion process, the liquid medicine will be released too quickly because the internal infusion port is too large, thereby causing a strong emergency reaction in the patient's bladder. The design of the slow-release balloon 7 can reduce the patient's emergency reaction.

[0029] In addition, a switch valve is provided on the perfusion interface 2, and a sliding valve core 21 is provided inside the switch valve. The opening and closing of the switch valve is controlled by pushing the sliding valve core 21 to move in the valve cavity. A plurality of threaded connection bosses 22 are also provided at the end of the perfusion interface 2. The threaded connection bosses 22 are distributed in an annular manner. The end of the perfusion interface 2 is connected to a syringe with a spiral port. The threaded connection bosses 22 cooperate with the spiral port, so that the syringe is more firmly connected to the perfusion interface and is not easy to fall off.

[0030] The perfusion catheter of the present application can reduce the release speed of the drug solution and avoid a strong emergency reaction of the patient's bladder by providing a slow-release balloon 7 and opening a large number of small holes on the slow-release balloon 7; by providing a switch valve with a sliding valve core 21, the slow-release balloon 7 has sufficient pressure to release the drug solution into the bladder to prevent the drug solution from flowing back into the syringe; by providing a threaded connection boss 22, it can be connected to the spiral mouth of the syringe, so that the connection between the syringe and the perfusion interface 2 is more firm and not easy to fall off.

[0031] The working principle and working process of the novel perfusion catheter of the utility model are briefly described below in conjunction with the accompanying drawings.

[0032] First, take out the irrigation catheter from the packaging bag. At this time, the positioning balloon 6 and the sustained-release balloon 7 are both in a contracted state. The medical staff can connect the excretion interface 3 to the catheter bag, and then quickly insert the irrigation catheter from the patient's urethra into the bladder. When the irrigation catheter is inserted to a certain depth, it is connected to the water injection interface 4 through a water injection syringe to fill the positioning balloon 6 with sufficient water to make it expand and bulge to clamp the bladder neck; the urine in the bladder is discharged into the catheter bag through the excretion hole 51 and the excretion pipe 11.

[0033] Then, the syringe filled with medicine is threadedly connected to the threaded connecting boss 22 on the perfusion interface 2, and the sliding valve core 21 of the switch valve is opened at the same time; the medicine is filled into the slow-release balloon 7 by pressing the syringe, and the medicine is slowly released into the bladder through the small hole, and then the sliding valve core 21 of the switch valve is closed, so that the slow-release balloon 7 has enough pressure to release the medicine into the bladder to prevent the medicine from flowing back into the syringe; thereafter, the mixture of medicine and urine after irrigating the bladder is discharged into the catheter bag through the excretion hole 51 and the excretion pipe 11; finally, the switch of the water injection interface 4 is opened to shrink the positioning balloon 6, and then the perfusion catheter is slowly withdrawn from the urethra.

[0034] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A novel urinary infusion catheter, characterized in that: include: Main body (1), perfusion interface (2), drainage interface (3), water injection interface (4), urinary catheter head (5), positioning balloon (6) and slow-release balloon (7); The main body (1) is a three-lumen tube having an excretion channel (11), a water injection channel (14) and an irrigation channel (12); The urinary catheter head (5) is arranged at the front end of the main body (1), and a drainage hole (51) is provided on the side wall of the urinary catheter head (5); The positioning balloon (6) is arranged on the main body (1) and is located at the rear side of the urinary catheter head (5). The main body (1) is provided with a water hole (61) that is in communication with the positioning balloon (6). The water hole (61) is also in communication with the water injection pipe (14). The slow-release balloon (7) is also arranged on the main body (1) and is located at the rear side of the positioning balloon (6). The main body (1) is provided with a second water hole (71) connected to the slow-release balloon (7), and the second water hole (71) is connected to the perfusion pipe (12); wherein, a large number of small holes are opened on the slow-release balloon (7).

2. The novel urinary infusion catheter according to claim 1, characterized in that: The end of the perfusion interface (2) is also provided with a plurality of threaded connection bosses (22).

3. The novel urinary infusion catheter according to claim 2, characterized in that: The threaded connection bosses (22) are distributed in a ring shape at the end of the perfusion interface (2).

4. The novel urinary infusion catheter according to claim 1, characterized in that: The perfusion interface (2) is provided with a switch valve, and a sliding valve core (21) is provided in the switch valve.

5. The novel urinary infusion catheter according to claim 1, characterized in that: The connection between the catheter head (5) and the main body (1) is in an arc transition, so that the catheter head (5) is tilted at a certain angle.

6. The novel urinary infusion catheter according to claim 1, characterized in that: The drainage hole (51) is in communication with the drainage pipe (11) of the main body (1).

7. The novel urinary infusion catheter according to claim 6, characterized in that: The drainage interface (3) is in communication with the drainage pipe (11).

8. The novel urinary infusion catheter according to claim 1, characterized in that: The perfusion interface (2) is in communication with the perfusion pipeline (12).

9. The novel urinary infusion catheter according to claim 1, characterized in that: The water injection interface (4) is in communication with the water injection pipeline (14).

10. The novel urinary infusion catheter according to claim 1, characterized in that: The main body (1) is also provided with a developing line (13).

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