Continuous bladder internal pressure monitoring connection structure
By designing a three-way connector and sealing components, combined with an electrocardiogram monitor, continuous and accurate intravesical pressure monitoring is achieved, solving the problems of discontinuity and infection risk in existing intravesical pressure monitoring technologies, and making it suitable for various ward environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE FIRST AFFILIATED HOSPITAL OF ANHUI MEDICAL UNIV
- Filing Date
- 2025-01-06
- Publication Date
- 2026-04-28
AI Technical Summary
Existing intravesical pressure monitoring technologies have problems such as the inability to provide continuous monitoring, inaccurate values, poor repeatability, and the potential to increase the risk of urinary tract infections, making them particularly unsuitable for critically ill patients in the ICU.
A three-way connector is used to connect the urinary catheter, urinary bag, and pressure monitoring connector. Combined with a sealing component, selective sealing and flushing are achieved. The pressure monitoring module of the electrocardiogram monitor continuously monitors the intrabladder pressure, eliminating the need to replace the urinary catheter.
It enables continuous intravesical pressure monitoring without changing the urinary catheter, reducing the risk of urinary tract infection. It is suitable for various wards and is easy to operate, avoiding the need for additional equipment.
Smart Images

Figure CN224166307U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of intravesical pressure monitoring technology, specifically to a continuous intravesical pressure monitoring connection structure. Background Technology
[0002] High intra-abdominal pressure can cause abnormal physiological functions in multiple organ systems, including the lungs, cardiovascular system, kidneys, and gastrointestinal tract. If not treated promptly, it can lead to multiple organ dysfunction and even death. Its diagnosis largely depends on the dynamic measurement of intra-abdominal pressure.
[0003] Intra-abdominal pressure measurement is divided into direct measurement and indirect measurement methods. Direct measurement is accurate, but its disadvantages are that it is invasive and complex, and can increase the probability of abdominal infection in patients. Bladder pressure measured via the bladder has become the main method of intra-abdominal pressure measurement because it has a good correlation with intra-abdominal pressure and has the advantages of simple operation, minimal trauma, strong repeatability, and accurate measurement results.
[0004] Traditional bladder pressure measurement techniques typically involve connecting one end of an IV set to a urinary catheter and infusing normal saline at the other end, then observing the height of the saline column to assess bladder pressure. This method is simple and easy to operate, but suffers from inaccurate readings, poor repeatability, and inability to provide continuous monitoring, making it unsuitable for critically ill patients in the ICU. Another method uses a Foley triple-lumen catheter connected to a pressure sensor to monitor bladder pressure. This method provides more accurate measurements and allows for continuous monitoring, and is widely accepted in clinical practice. However, it has drawbacks such as requiring catheter replacement, potentially increasing the risk of urinary tract infections, and increasing costs. Utility Model Content
[0005] Therefore, this utility model provides a continuous intravesical pressure monitoring connection structure, which can continuously monitor intravesical pressure without changing the urinary catheter or introducing intra-abdominal pressure monitoring equipment. It only requires an electrocardiogram monitor pressure monitoring module, and is suitable for various wards.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a continuous intravesical pressure monitoring connection structure, including a three-way connector, wherein the three ports of the three-way connector are respectively equipped with a urinary catheter connector, a urine bag connector, and a pressure measuring connector. The urinary catheter connector is connected to a urinary catheter, the urine bag connector is connected to a urine bag, and the pressure measuring connector is connected to a CVP monitoring module for continuous monitoring of intravesical pressure. This eliminates the need to replace the urinary catheter or introduce intra-abdominal pressure monitoring equipment; continuous monitoring of intravesical pressure is achieved using only an electrocardiogram monitor and its pressure monitoring module.
[0007] The tee connector is equipped with a sealing component for selective sealing and flushing of the three ports of the tee connector; the sealing component includes a circular block with a movable rod on the outside of the circular block, and a hemispherical plug is fixed to the end of the movable rod away from the circular block. The movable rod is connected to the circular block by a spring.
[0008] Furthermore, a sleeve is fixed to the side of the circular block near the movable rod, the sleeve is fitted onto the outside of the movable rod, and a sealing ring is provided on the outer wall of the movable rod to seal between the movable rod and the sleeve.
[0009] Furthermore, the rear end of the circular block is rotatably connected to the inner wall of the tee connector via a rotating shaft, and a rotating tube is fixed to the front end of the circular block. The end of the rotating tube away from the circular block extends out of the front end of the tee connector, and a rotating handle is fixed to the outer side of the end of the rotating tube extending out of the tee connector, which facilitates the rotation of the rotating tube and the circular block.
[0010] Furthermore, a channel is provided inside the circular block, and the spring is located inside the channel.
[0011] Furthermore, the hemispherical plug is wrapped with a sealing gasket on the outside, which blocks the flow to the urine catheter connector, urine bag connector, or pressure measuring connector when the hemispherical plug is located at the opening of the urine catheter connector, urine bag connector, or pressure measuring connector.
[0012] Furthermore, a second channel is provided inside the rotating tube, a third channel is provided inside the movable rod, and a fourth channel is provided inside the hemispherical plug. The second, first, third, and fourth channels are connected in sequence. The channels second, first, third, and fourth channels facilitate the injection of water into the urine catheter connector, urine bag connector, or pressure measuring connector for flushing, thus preventing blockage of this utility model.
[0013] Furthermore, one end of the tee connector extending from the swivel pipe is plugged with a channel plug for sealing the second opening of the channel.
[0014] This utility model has the following advantages:
[0015] 1. This utility model connects the urinary catheter, urinary bag, and pressure monitoring module simultaneously through a three-way connector, so that the urinary catheter does not need to be replaced and no intra-abdominal pressure monitoring equipment is needed. Only an electrocardiogram monitor and pressure monitoring module are needed to continuously monitor the intrabladder pressure, which is suitable for various wards.
[0016] 2. This utility model can selectively block or open the urinary catheter connector, urinary bag connector, and pressure measuring connector through the sealing component, while facilitating flushing of the urinary catheter connector, urinary bag connector, or pressure measuring connector to prevent blockage of the continuous bladder pressure monitoring connection structure. Attached Figure Description
[0017] Figure 1 A schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a cross-sectional view of the three-way connector provided by this utility model;
[0019] Figure 3A schematic diagram of the sealing component structure provided by this utility model;
[0020] Figure 4 This is a side sectional view of the sealing component provided by this utility model;
[0021] Figure 5 This is a schematic diagram illustrating the bladder pressure measurement process of this utility model;
[0022] In the diagram: 1. Three-way connector, 2. Urinary catheter connector, 3. Urinary bag connector, 4. Pressure monitoring connector;
[0023] 5. Sealing assembly, 51. Round block, 52. Sleeve, 53. Movable rod, 54. Hemispherical plug, 55. Spring, 56. Rotary tube, 57. Rotary handle, 58. Sealing gasket, 59. Channel 1, 510. Channel 2, 511. Channel 3, 512. Channel 4, 513. Channel plug. Detailed Implementation
[0024] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0025] Refer to the instruction manual appendix Figure 1 and Figure 5 As shown, this utility model provides a continuous intravesical pressure monitoring connection structure, including a three-way connector 1. The three ports of the three-way connector 1 are respectively equipped with a urinary catheter connector 2, a urine bag connector 3, and a pressure measuring connector 4. The urinary catheter connector 2 is connected to a urinary catheter, the urine bag connector 3 is connected to a urine bag, and the pressure measuring connector 4 is connected to a CVP monitoring module for continuous monitoring of intravesical pressure.
[0026] The procedure for measuring intravesical pressure is as follows:
[0027] 1. Verify the instruments;
[0028] 2. Position: The patient lies supine and empties their bladder;
[0029] 3. Open the monitoring channel: Connect the CVP monitoring module and connect it to the monitor. Open the CVP pressure measurement channel on the monitor (because the monitor does not have an IAP monitoring channel, the CVP channel is used instead).
[0030] 4. Injection: Inject 25ml of sterile saline into the bladder through the urinary catheter, and keep the urinary catheter connected to the CVP monitoring module after 30-60 seconds;
[0031] 5. Zeroing: Using the level of the iliac crest at the mid-axillary line as the zero point, connect the three-way connector 1 to the outside and zero the monitor;
[0032] 6. Reading: The reading is taken at the end of the patient's expiration, and the result is expressed in mmHg;
[0033] 7. Recording: Record the IAP value correctly on the nursing record sheet once an hour. The normal IAP for critically ill patients is 5-7 mmHg. IAP > 12 mmHg indicates intra-abdominal hypertension. If IAP > 12 mmHg, the doctor should be notified and monitoring should be intensified.
[0034] This invention eliminates the need to change urinary catheters or introduce intra-abdominal pressure monitoring equipment. It only requires an electrocardiogram monitor pressure monitoring module to continuously monitor intrabladder pressure, making it suitable for various wards.
[0035] like Figure 2-4 As shown, a sealing assembly 5 is provided inside the tee connector 1 for selective sealing and flushing of the three ports of the tee connector 1. The sealing assembly 5 includes a round block 51. A movable rod 53 is provided on the outside of the round block 51. A sleeve 52 is fixed on the side of the round block 51 near the movable rod 53. The sleeve 52 is sleeved on the outside of the movable rod 53. A sealing ring is provided on the outer wall of the movable rod 53 to seal between the movable rod 53 and the sleeve 52. A hemispherical plug 54 is fixed on the end of the movable rod 53 away from the round block 51. The movable rod 53 and the round block 51 are connected by a spring 55. A channel 59 is opened in the round block 51. The spring 55 is located in the channel 59.
[0036] Next, the rear end of the round block 51 is rotatably connected to the inner wall of the tee connector 1 via a rotating shaft. A rotating tube 56 is fixed to the front end of the round block 51. The end of the rotating tube 56 away from the round block 51 extends out of the front end of the tee connector 1. The rotating tube 56 and the tee connector 1 can be connected by a sealed bearing to facilitate the rotation and sealing of the rotating tube 56. A rotating handle 57 is fixed to the outer side of the end of the rotating tube 56 extending out of the tee connector 1 to facilitate the rotation of the rotating tube 56.
[0037] Rotating the handle 57 causes the rotating tube 56, the circular block 51, the movable rod 53, and the hemispherical plug 54 to rotate. When the hemispherical plug 54 rotates to the opening of the urinary catheter connector 2, the urinary bag connector 3, or the pressure measuring connector 4, under the elastic force of the spring 55, the hemispherical plug 54 is tightly pressed against the opening of the urinary catheter connector 2, the urinary bag connector 3, or the pressure measuring connector 4, and a sealing gasket 58 is wrapped around the outside of the hemispherical plug 54. At this time, the hemispherical plug 54 blocks the flow of the urinary catheter connector 2, the urinary bag connector 3, or the pressure measuring connector 4. Rotating the handle 57 again, since the opening of the urinary catheter connector 2, the urinary bag connector 3, or the pressure measuring connector 4 is in contact with the spherical surface of the hemispherical plug 54, the hemispherical plug 54 can be moved out of the opening of the urinary catheter connector 2, the urinary bag connector 3, or the pressure measuring connector 4. At this time, the urinary catheter connector 2, the urinary bag connector 3, or the pressure measuring connector 4 is open.
[0038] Therefore, when the hemispherical plug 54 blocks the flow of urine bag connector 3, and the urinary catheter connector 2 and pressure measuring connector 4 are open, bladder pressure measurement can be performed; when the hemispherical plug 54 blocks the flow of pressure measuring connector 4, and the urinary catheter connector 2 and urine bag connector 3 are open, urine can be diverted to the urine bag.
[0039] Furthermore, such as Figure 4 As shown, a second channel 510 is provided in the rotating tube 56, a third channel 511 is provided in the movable rod 53, and a fourth channel 512 is provided in the hemispherical plug 54. The second channel 510, the first channel 59, the third channel 511 and the fourth channel 512 are connected in sequence. One end of the rotating tube 56 extending into the tee connector 1 is plugged with a channel plug 513 for sealing the opening of the second channel 510.
[0040] When the hemispherical plug 54 enters the inlet of the urinary catheter connector 2, urinary bag connector 3, or pressure measuring connector 4, the channel plug 513 is opened, and the flushing pipe can be connected to the rotating pipe 56. Water can then be injected into the urinary catheter connector 2, urinary bag connector 3, or pressure measuring connector 4 through the second channel 510, the first channel 59, the third channel 511, and the fourth channel 512, thereby flushing the urinary catheter connector 2, urinary bag connector 3, or pressure measuring connector 4 and preventing blockage of the urinary catheter connector 2, urinary bag connector 3, or pressure measuring connector 4.
[0041] In addition, when the hemispherical plug 54 is rotated to other positions inside the three-way connector 1, that is, without blocking the urine catheter connector 2, urine bag connector 3 and pressure measuring connector 4, the channel plug 513 is opened. At this time, the three-way connector 1 is connected to the outside, and the monitor can be zeroed.
Claims
1. A continuous intravesical pressure monitoring connection structure, characterized in that: It includes a three-way connector (1), and the three ports of the three-way connector (1) are respectively equipped with a urine catheter connector (2), a urine bag connector (3) and a pressure measuring connector (4). The urinary catheter connector (2) is connected to the urinary catheter, the urinary bag connector (3) is connected to the urinary bag, and the pressure measuring connector (4) is connected to the CVP monitoring module for continuous monitoring of intrabladder pressure; The three-way connector (1) is provided with a sealing component (5) for selective sealing and flushing of the three ports of the three-way connector (1); the sealing component (5) includes a round block (51) and a movable rod (53) on the outside of the round block (51). A hemispherical plug (54) is fixed at one end of the movable rod (53) away from the round block (51). The movable rod (53) and the round block (51) are connected by a spring (55).
2. The continuous intravesical pressure monitoring connection structure according to claim 1, characterized in that: A sleeve (52) is fixed on the side of the circular block (51) near the movable rod (53). The sleeve (52) is sleeved on the outside of the movable rod (53). A sealing ring is provided on the outer wall of the movable rod (53) to seal between the movable rod (53) and the sleeve (52).
3. The continuous intravesical pressure monitoring connection structure according to claim 1, characterized in that: The rear end of the circular block (51) is rotatably connected to the inner wall of the three-way connector (1) via a rotating shaft. A rotating tube (56) is fixed at the front end of the circular block (51). The end of the rotating tube (56) away from the circular block (51) extends out of the front end of the three-way connector (1), and a rotating handle (57) is fixed on the outer side of the end of the rotating tube (56) extending out of the three-way connector (1).
4. The continuous intravesical pressure monitoring connection structure according to claim 3, characterized in that: The circular block (51) has a channel (59) inside, and the spring (55) is located inside the channel (59).
5. The continuous intravesical pressure monitoring connection structure according to claim 1, characterized in that: The hemispherical plug (54) is wrapped with a sealing gasket (58) on the outside. When the hemispherical plug (54) is located at the opening of the urinary catheter connector (2), the urinary bag connector (3) or the pressure measuring connector (4), it blocks the flow of the urinary catheter connector (2), the urinary bag connector (3) or the pressure measuring connector (4).
6. The continuous intravesical pressure monitoring connection structure according to claim 4, characterized in that: The rotating tube (56) has a second channel (510), the movable rod (53) has a third channel (511), and the hemispherical plug (54) has a fourth channel (512). The second channel (510), the first channel (59), the third channel (511), and the fourth channel (512) are connected in sequence. The second channel (510), the first channel (59), the third channel (511), and the fourth channel (512) facilitate the injection of water into the urine tube connector (2), the urine bag connector (3), or the pressure measuring connector (4) for flushing.
7. The continuous intravesical pressure monitoring connection structure according to claim 3, characterized in that: The swivel (56) extends to one end of a tee connector (1) which is plugged with a channel plug (513) for sealing the opening of channel two (510).