A urinary catheter for bladder irrigation

Abstract

The utility model discloses a urinary catheter for bladder flushing, including three cavity urinary catheter body, the flushing port of three cavity urinary catheter body is equipped with detachable joint, and the joint includes the back -set pipe of connecting flushing port, and the bottom of back -set pipe is threadedly connected with front -set pipe, and the conical inner chamber of upper thick lower thin is equipped in front -set pipe, and the inner chamber bottom of front -set pipe is equipped with the interface of connecting flushing device, and the inner chamber in front -set pipe is equipped with sealed ball, and the top of sealed ball is equipped with spring, and the top of spring is arranged in spring seat, and spring seat is fixedly connected annular positioning plate through a plurality of connecting rods, and the top of annular positioning plate is equipped with the annular baffle of fixedly connected back -set pipe inner wall. The urinary catheter of the utility model is provided with the specially-made joint at the flushing port, the joint pushes away the sealed ball in the inside when the flushing device is inserted, makes the normal flow of flushing fluid to the bladder, and the sealed ball is extruded and sealed by the spring when not inserting the flushing device to prevent liquid leakage, and the dredging spring that moves with the sealed ball is also set up.

Description

Technical Field

[0001] This utility model relates to the field of urinary catheter technology, specifically to a urinary catheter for bladder irrigation. Background Technology

[0002] A urinary catheter is a tube inserted into the bladder through the urethra to drain urine. It is generally made of natural rubber, silicone rubber, or polyvinyl chloride. A three-lumen urinary catheter is a commonly used type, containing a balloon chamber, an irrigation chamber, and a drainage chamber. It is mainly used for short-term indwelling catheterization, intrabladder medication infusion, irrigation, and drainage.

[0003] In a three-lumen catheter, the balloon cavity, irrigation cavity, and drainage cavity branch off at the end of the catheter, forming corresponding balloon injection ports, irrigation ports, and drainage ports. The balloon injection port is used to inject gas or liquid, forming a fixed balloon near the tip of the catheter. The irrigation port is used to inject irrigation medication into the bladder, and the drainage port is used to connect a drainage bag to collect fluid drained from the drainage cavity.

[0004] When a three-lumen urinary catheter is in place, the irrigation port is idle. Medical staff need to seal the irrigation port. Common methods include connecting a disposable urine collection bag to the irrigation port or using other items such as an IV connector for sealing. However, the operation is relatively complicated, which increases the workload of medical staff and the consumption of medical materials. Utility Model Content

[0005] 1. The technical problem to be solved: To address the aforementioned technical problems, this utility model provides a urinary catheter for bladder irrigation.

[0006] 2. Technical Solution: A urinary catheter for bladder irrigation includes a three-lumen catheter body. The irrigation port of the three-lumen catheter body is provided with a detachable connector. The connector includes a rear tube connected to the irrigation port. The bottom of the rear tube is threadedly connected to a front tube. The front tube has a tapered inner cavity that is wider at the top and narrower at the bottom. The bottom of the inner cavity of the front tube has an interface for connecting to an irrigation device. The inner cavity of the front tube has a sealing ball. The top of the sealing ball has a spring. The top of the spring is located in a spring seat. The spring seat is fixedly connected to an annular positioning plate by multiple connecting rods. The top of the annular positioning plate has an annular baffle fixedly connected to the inner wall of the rear tube.

[0007] Furthermore, a push rod is fixed to the top of the sealing ball, and a drainage spring is fixed to one end of the push rod that passes through the center hole of the spring and passes through the spring seat.

[0008] Furthermore, a sealing ring is provided at the threaded connection of the pre-tube and the post-tube.

[0009] Furthermore, the rear tube has a tapered inner cavity that is narrower at the top and wider at the bottom, and a Luer connector for connecting to the flushing port is provided at the top of the inner cavity of the rear tube.

[0010] Preferably, the unblocking spring has a spiral structure that is thinner at both ends than in the middle, and it is elastic.

[0011] Furthermore, the end of the three-lumen catheter body is provided with a slot, in which a temperature-sensing thermistor is fixed. The temperature-sensing thermistor is connected to the connector via a wire. The wire is guided through the wire chamber inside the three-lumen catheter body to the perforation at the front end of the three-lumen catheter body and then connects to the connector.

[0012] 3. Beneficial effects: This invention relates to a urinary catheter with a specially designed connector at the irrigation port. When the irrigation device is inserted, this connector pushes open the sealing ball inside, allowing the irrigation fluid to flow normally into the bladder. When the irrigation device is not inserted, the sealing ball is spring-loaded to seal the interface and prevent leakage. A drainage spring that moves with the sealing ball is also included to clear any blockages inside the connector. Furthermore, this invention's urinary catheter has a body temperature monitoring function, which can monitor the internal temperature of the bladder more accurately, providing effective feedback to doctors. Attached Figure Description

[0013] Figure 1 This is an external view of the urinary catheter of this utility model; Figure 2 This is a schematic diagram of the internal structure of the flushing port connector of this utility model; Figure 3 This is a schematic diagram of the structure of the spring seat, connecting rod, and annular positioning plate of this utility model; Figure 4 This is a schematic diagram of the structure of the annular baffle of this utility model. Detailed Implementation

[0014] The present invention will now be described in detail with reference to the accompanying drawings.

[0015] As attached Figure 1 To be continued Figure 4 , Example 1: A bladder irrigation catheter includes a three-lumen catheter body 1. The irrigation port of the three-lumen catheter body 1 is provided with a detachable connector 2. The connector 2 includes a rear tube 3 connected to the irrigation port. The bottom of the rear tube 3 is threadedly connected to a front tube 4. The front tube 4 has a tapered inner cavity that is wider at the top and narrower at the bottom. The bottom of the inner cavity of the front tube 4 is provided with an interface for connecting to an irrigation device. A sealing ball 5 is provided in the inner cavity of the front tube 4. A spring 6 is provided on the top of the sealing ball 5. The top of the spring 6 is located in a spring seat 7. The spring seat 7 is fixedly connected to an annular positioning plate 9 by multiple connecting rods 8. The top of the annular positioning plate 9 is provided with an annular baffle 10 that is fixedly connected to the inner wall of the rear tube 3.

[0016] When bladder irrigation is required, an irrigation device, such as a syringe, is inserted into the bottom interface of the pre-inlet tube 4. The syringe tip pushes the sealing ball 5 upwards, disengaging it from the bottom of the pre-inlet tube 4. The irrigation fluid can then flow normally into the connector 2. The irrigation fluid passes through the inner cavity of the pre-inlet tube 4, the gaps between the multiple connecting rods 8, and the central hole of the annular baffle 10 before flowing out from the top of the post-inlet tube 3 to the irrigation port. It then flows through the three-lumen catheter body 1 into the bladder for irrigation. The irrigation fluid and urine flow out through the bottom catheter of the three-lumen catheter body 1 into the urine bag, completing the irrigation operation. In this embodiment, the detachable connector 2 is normally sealed by the spring 6 pressing the sealing ball 5. It automatically opens after the irrigation device is inserted. No external urine bag or other sealing devices, such as the infusion connector 2, are needed, making operation more convenient and avoiding potential puncture wounds when connecting an infusion needle for irrigation fluid administration.

[0017] Example 2: A push rod 11 is fixed to the top of the sealing ball 5. One end of the push rod 11 passes through the center hole of the spring 6 and is fixed to a draining spring 12. When the flushing device is inserted, it pushes the sealing ball 5 upward, thereby driving the push rod 11 and the draining spring 12 to move upward. This can clear the inside of the connector 2 if it is blocked. Alternatively, a rod can be used to move the sealing ball 5 up and down, making the draining spring 12 move up and down for a longer stroke and clearing more thoroughly.

[0018] Example 3: In order to make the assembly of the connector 2 easier, the entire connector 2 is designed as a structure of two tubes, front and rear. Considering the sealing performance, a sealing ring 13 is also provided at the threaded connection between the front tube 4 and the rear tube 3.

[0019] Example 4: The rear tube 3 has a tapered inner cavity that is narrower at the top and wider at the bottom. The top of the inner cavity of the rear tube 3 is equipped with a Luer connector for connecting to the flushing port. The Luer connector is reliable and easy to disassemble.

[0020] Example 5: The end of the three-lumen catheter body 1 is also provided with a slot, in which a temperature measuring thermal head 14 is fixed. The temperature measuring thermal head 14 is connected to the connector 15 through a wire. The wire is guided through the wire chamber in the three-lumen catheter body 1 to the perforation at the front end of the three-lumen catheter body 1 and then connects to the connector 15.

[0021] This embodiment adds a temperature measurement function to monitor the temperature of the urethra in real time. The temperature measurement position is close to the lesion site, making the temperature measurement more accurate and providing doctors with effective reference for implementing treatment plans.

[0022] Although the present invention has been disclosed above with reference to preferred embodiments, these are not intended to limit the present invention. Anyone skilled in the art can make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope of protection of the claims of this application.

Claims

1. A urinary catheter for bladder irrigation, characterized in that, The device includes a three-lumen catheter body. The flushing port of the three-lumen catheter body is provided with a detachable connector. The connector includes a post-entry tube connected to the flushing port. The bottom of the post-entry tube is threadedly connected to a pre-entry tube. The pre-entry tube has a tapered inner cavity that is wider at the top and narrower at the bottom. The bottom of the inner cavity of the pre-entry tube has an interface for connecting to a flushing device. The inner cavity of the pre-entry tube has a sealing ball. The top of the sealing ball has a spring. The top of the spring is located in a spring seat. The spring seat is fixedly connected to an annular positioning plate by multiple connecting rods. The top of the annular positioning plate has an annular baffle that is fixedly connected to the inner wall of the post-entry tube.

2. A urinary catheter for bladder irrigation according to claim 1, characterized in that, A push rod is fixed to the top of the sealing ball, and a drainage spring is fixed to one end of the push rod that passes through the center hole of the spring and passes through the spring seat.

3. A urinary catheter for bladder irrigation according to claim 1 or 2, characterized in that, A sealing ring is provided at the threaded connection between the pre-tube and the post-tube.

4. A urinary catheter for bladder irrigation according to claim 3, characterized in that, The rear tube has a tapered inner cavity that is narrower at the top and wider at the bottom, and a Luer connector for connecting to the flushing port is provided at the top of the inner cavity of the rear tube.

5. A urinary catheter for bladder irrigation according to claim 2, characterized in that, The unblocking spring has a spiral structure that is thinner at both ends than in the middle, and it is elastic.

6. A urinary catheter for bladder irrigation according to claim 1 or 5, characterized in that, The end of the three-lumen catheter body is also provided with a slot, in which a temperature measuring thermal head is fixed. The temperature measuring thermal head is connected to the connector through a wire. The wire is guided through the wire chamber in the three-lumen catheter body to the perforation at the front end of the three-lumen catheter body and then connects to the connector.

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