An internal bladder pressure measuring device and its usage method

Abstract

The present invention relates to the technical field of cystometry, and particularly to an internal cystometry device and a usage method, aiming to solve the problems that the existing cystometry method is relatively cumbersome and the measured pressure data is prone to instability during the cystometry process. The pressure measurement assembly includes a single-lumen tube and a pressure measurement part. One end of the single-lumen tube is connected to the signal end of the pressure measurement controller, and the pressure measurement part is connected to the end of the single-lumen tube far from the pressure measurement controller; the pressure measurement part is used to detect the bladder pressure and feedback the pressure data or information to the pressure measurement controller. When performing cystometry on a patient, the pressure measurement part is sent into the patient's bladder through an insertion tube. After reaching the bladder, the insertion tube is removed, and the pressure measurement part remains in the bladder. The bladder pressure is measured by the pressure measurement part and the data or signal is fed back to the pressure measurement controller.

Description

Technical Field

[0001] The present invention relates to the technical field of cystometry, and particularly to an implantable cystometry device and a using method thereof. Background Art

[0002] Frequent urination and urinary incontinence are common lower urinary tract functional disorders in the middle-aged and elderly population, especially with a relatively high incidence in women, and it increases with age. The main clinical method for diagnosing urinary incontinence is through urodynamic examination to measure the bladder pressure of patients. The existing cystometry measures the internal pressure of the patient's bladder by manually inserting a pressure measurement catheter. Under aseptic operation, a special urinary catheter is inserted through the urethra. After emptying the bladder, sterile saline is injected into the bladder through the urinary catheter for measurement. This method is an indirect way to measure the bladder internal pressure, and the operation is complex, time-consuming and laborious. Moreover, inserting the pressure measurement tube will make the patient nervous and cause pain. The bladder perfusion during the test will stimulate the bladder, affecting the test effect and measurement accuracy, and the measured data cannot truly reflect the bladder pressure of the patient in a normal relaxed state. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that the existing cystometry method has cumbersome preoperative preparations and complex operations, which will affect the measurement data to a certain extent. The purpose is to provide an implantable cystometry device and a using method thereof, which can directly place the pressure measurement tool into the bladder to measure the pressure of the patient.

[0004] The present invention is achieved through the following technical solutions:

[0005] An implantable cystometry device includes a pressure measurement controller and a pressure measurement component. The pressure measurement component is connected to the pressure measurement controller. The pressure measurement component includes a single-lumen tube and a pressure measurement part. One end of the single-lumen tube is connected to the signal end of the pressure measurement controller, and the pressure measurement part is connected to the end of the single-lumen tube away from the pressure measurement controller;

[0006] Wherein, the pressure measurement part is used to be inserted into the bladder through an intubation catheter and remain in the bladder. The pressure measurement part is used to detect the bladder pressure and feedback the pressure data or information to the pressure measurement controller. The pressure measurement controller is used to monitor the bladder pressure data and the working state of the pressure measurement device in real time, obtain the real-time bladder pressure, bladder temperature, bladder pressure curve graph, maximum bladder pressure, and bladder pressure change amplitude through arithmetic processing, generate a bladder pressure monitoring report and evaluation opinions, and store and display them.

[0007] In the above technical solution, when performing cystometry on a patient, the pressure measuring part and the single lumen tube of the pressure measuring device that have been pre-fabricated and sealed and connected in the factory are placed into the lumen of the insertion cannula and fixed, then enter the bladder through the urethra. After reaching the bladder, the insertion cannula is withdrawn, and the pressure measuring part remains in the bladder. The bladder pressure is measured by the pressure measuring part, and the data is fed back to the pressure measuring controller.

[0008] In some alternative technical solutions, at least one pressure sensor is provided on the end or outer peripheral wall of the pressure measuring part. A groove is formed at the position of the pressure sensor, and the pressure sensor is arranged in the groove, and the pressure monitoring port of the pressure sensor is lower than the upper surface of the groove. A wire channel is formed in the single lumen tube and the pressure measuring part. A transmission line is connected to the pressure sensor, and the transmission line passes through the wire channel and is electrically connected to the pressure measuring controller.

[0009] In the above technical solution, at least one pressure sensor is provided on the pressure measuring part, which can directly collect the pressure and temperature data in the bladder. Compared with the existing cystometry methods, the measured data is more accurate.

[0010] In some alternative technical solutions, a cover is slidably connected in the groove, and the cover and the insertion cannula are sleeved and connected. The groove includes a limiting groove and a sliding groove. The limiting groove and the sliding groove are communicated and the connection part has a smooth transition. The depth of the limiting groove is greater than the depth of the sliding groove, and the lengths of the limiting groove and the sliding groove are equal. The sliding groove is arranged at the end close to the single lumen tube. A ring-shaped flange is provided at one end of the insertion cannula close to the cover, and a clamping groove for clamping with the ring-shaped flange is formed at one end of the cover close to the limiting groove. The outer peripheral wall radius of the cover is the same as the outer diameter of the single lumen tube.

[0011] In the above technical solution, the cover is slidably connected in the groove, and the ring-shaped flange is used to control or limit the sliding of the cover in the groove. When the single lumen tube extends into the bladder, the cover is located in the sliding groove to shield the pressure sensor. When the insertion cannula is withdrawn, the ring-shaped flange drives the cover to slide along the sliding groove and move away from the cover.

[0012] In some alternative technical solutions, a rotating shaft is arranged between the limiting groove and the sliding groove, and a seesaw is rotatably connected to the rotating shaft. The two ends of the seesaw are respectively located in the limiting groove and the sliding groove. At least one pressure sensor is also provided on the end face of the seesaw close to the sliding groove side, and the seesaw on the sliding groove side is an inclined plane.

[0013] In the above technical solution, when the insertion cannula moves to the limiting groove, the seesaw at the bottom of the limiting groove moves downward, and at the same time, the seesaw at the sliding groove rises, so that the pressure sensor is exposed for pressure measurement.

[0014] In some alternative technical solutions, a pressure measuring airbag is provided in the pressure measuring part. An air hole penetrates through the end or the outer circumferential side wall of the pressure measuring part, and the air hole is communicated with the lumen of the single-chamber tube and the inner cavity of the pressure measuring airbag.

[0015] In the above technical solution, the pressure measuring part is a pressure measuring airbag, and an air hole is provided on the pressure measuring part. The air hole is communicated with the pressure measuring airbag. The pressure measuring airbag is filled with gas at a set pressure during factory production, and the pressure value of the pressure measuring airbag after the gas is filled is used to calibrate this pressure measuring device, and the bladder pressure can be directly obtained during measurement.

[0016] In some alternative technical solutions, a plurality of annular grooves are formed on the outer peripheral wall of the pressure measuring airbag. The grooves are used to divide the pressure measuring airbag into several chambers. Each chamber is communicated with each other. A pressure sensor is also provided in the chamber. The pressure sensor is used to be electrically connected to the pressure measuring controller through a transmission line in the single-chamber tube. The grooves are annular, and the grooves coincide with or are inclined to the axis of the single-chamber tube.

[0017] In the above technical solution, the pressure measuring airbags of several chambers can judge whether the bladder is diseased when the bladder is locally pressed.

[0018] In some alternative technical solutions, a through hole is opened at one end of the single-chamber tube away from the pressure measuring controller, and the through hole is communicated with the lumen of the single-chamber tube.

[0019] In the above technical solution, the pressure measuring part can also directly open a through hole and be connected to the pressure measuring controller for pressure measurement.

[0020] In some alternative technical solutions, the pressure measuring part has flexibility and elastic deformation ability. The shape of the pressure measuring part is G-shaped, e-shaped, U-shaped or C-shaped, and the cross-sectional shape of the pressure measuring part is circular, oval, quadrilateral or C-shaped.

[0021] In the above technical solution, the pressure measuring part will return to its original shape after being released from the restriction of the insertion tube, and the pressure measuring part can be safely placed in the bladder to avoid falling off during detection.

[0022] In the second aspect of the present invention, a method for using an internal bladder pressure measuring device is provided. Pressure measurement is performed according to the internal bladder pressure measuring device described in the first aspect of the present invention, including the following steps:

[0023] S1. Preparation before surgery;

[0024] S2. Sleeve the insertion tube outside the pressure measuring assembly and check whether the pressure measuring assembly and the pressure measuring controller have been connected.

[0025] S3. Use an insertion cannula to send the pressure measurement part into the bladder through the urethra. After pulling out the insertion cannula, the acting force of the insertion cannula on the pressure measurement part disappears and it deforms, automatically restoring its original shape and remaining in the bladder. Then, wear the pressure measurement controller on the patient or paste it on the patient's abdomen or thigh, and start pressure measurement through the pressure sensor. When the pressure measurement part is a pressure measurement airbag, during its manufacturing process, inject gas with a set pressure into the pressure measurement airbag through a single-chamber tube. After the pressure measurement airbag is inflated and expanded, the rear end of the single-chamber tube is fixedly and hermetically connected to the pressure measurement port of the pressure sensor in the pressure measurement controller as a whole and fixed on the pressure measurement controller. Calibrate this pressure measurement device according to the pressure value of the pressure measurement airbag after injecting gas, and the bladder pressure can be directly obtained during measurement;

[0026] S4. The pressure measurement controller records, calculates, and processes the data measured by the pressure sensor, and issues an alarm when the bladder pressure value exceeds the set safety bladder pressure warning value or the pressure measurement device has an abnormality;

[0027] S5. At the start and end of the detection, the pressure measurement controller also has an operation prompt function and an alarm function. After completing the pressure measurement, pull out the pressure measurement part in the bladder by pulling the transmission line or the single-chamber tube outside the body.

[0028] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0029] 1. When the pressure measurement part in the present invention uses a pressure sensor to detect the bladder pressure, one or more pressure sensors can be set in the grooves of the pressure measurement part and connected to the pressure measurement controller through a transmission line for subsequent signal transmission and traction. The pressure sensor can realize real-time monitoring of the internal pressure and temperature of the bladder; in addition, the single-chamber tube is sent into the bladder by the cooperation of the insertion cannula and the cover in a butting manner. After taking out the insertion cannula, the cover slides to the limit groove, exposing the pressure sensor in the chute. At the same time, the pressure measurement part loses the restriction of the insertion cannula and restores its original shape and remains in the bladder. The cover can avoid direct contact between the pressure sensor and the bladder inner wall during the process of entering the bladder, which can not only protect the bladder inner wall from damage but also avoid unstable pressure sensor data. After the detection is completed, the pressure measurement part in the bladder can be taken out by directly pulling the transmission line or the single-chamber tube outside the body;

[0030] 2. When the pressure measurement part in the present invention is a pressure measurement airbag, during production and manufacturing, gas with a set pressure is injected into the pressure measurement airbag to make it fully expand. By connecting the rear end of the single-chamber tube to the pressure sensor in the pressure measurement controller, it can be used for pressure measurement in the later stage. In addition, the setting of multiple chambers can detect in real time when there is an abnormality in the patient's bladder. If there is a lesion inside the patient, it will cause a certain chamber to be compressed, and the gas in this chamber will overflow into the adjacent chamber, resulting in an increase in the pressure value of the pressure sensor in this area. The gas enters the chambers in the adjacent area, and by combining with the pressure measurement controller, several feedback pressure data can be obtained to know exactly which part has a problem.

[0031] 3. When the pressure measurement part in the present invention is designed with a through hole opened at the end of the single-chamber tube, the end of the single-chamber tube can be connected to the pressure measurement port of the pressure measurement sensor inside the pressure measurement controller for measuring the pressure of the bladder. This method is relatively convenient and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, form a part of this application, and do not limit the embodiments of the present invention. In the drawings:

[0033] Figure 1 is the structural schematic diagram of Embodiment 1 of the present invention;

[0034] Figure 2 is the cross-sectional view of the single-chamber tube and the pressure measurement part in Embodiment 1 of the present invention;

[0035] Figure 3 is the structural schematic diagram of the pressure sensor and the front end of the pressure measurement part in Embodiment 1 of the present invention;

[0036] Figure 4 is the structural schematic diagram of the cover when it is located in the sliding groove in Embodiment 2 of the present invention;

[0037] Figure 5 is the cross-sectional view of the cover when it is located in the sliding groove in Embodiment 2 of the present invention;

[0038] Figure 6 is Figure 5 the partial enlarged view of A in;

[0039] Figure 7 is the structural schematic diagram of the cover when it is located in the limiting groove in Embodiment 2 of the present invention;

[0040] Figure 8 is the cross-sectional view of the cover when it is located in the limiting groove in Embodiment 2 of the present invention;

[0041] Figure 9 is Figure 8 the partial enlarged view of B in;

[0042] Figure 10It is a cross-sectional view of the pressure measurement part in Embodiment 2 of the present invention;

[0043] Figure 11 It is a schematic structural diagram of the pressure measurement airbag and the pressure measurement part in Embodiment 3 of the present invention;

[0044] Figure 12 It is a cross-sectional view of Embodiment 4 of the present invention;

[0045] Figure 13 It is a schematic structural diagram in Embodiment 4 of the present invention;

[0046] Figure 14 It is a cross-sectional view of Embodiment 5 of the present invention.

[0047] What the reference signs represent are:

[0048] 1. Pressure measurement controller; 2. Single-chamber tube; 21. Slide groove; 22. Limit groove; 23. Cover; 24. Rocker; 3. Pressure sensor; 4. Pressure measurement airbag; 5. Insertion cannula; 51. Ring-shaped flange. Detailed implementation manners

[0049] To make the purpose, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in combination with embodiments and drawings. The illustrative embodiments of the present invention and their descriptions are only used to explain the present invention and do not limit the present invention. It should be noted that the present invention has been in the actual research and development and use stage.

[0050] Embodiment 1

[0051] As Figures 1 to 3 shown, this embodiment includes an internal bladder pressure measurement device, including a pressure measurement controller 1 and a pressure measurement component. The pressure measurement component is connected to the pressure measurement controller 1. It is characterized in that: the pressure measurement component includes a single-chamber tube 2 and a pressure measurement part. One end of the single-chamber tube 2 is connected to the signal end of the pressure measurement controller 1, and the pressure measurement part is connected to the end of the single-chamber tube 2 far from the pressure measurement controller 1;

[0052] Among them, the pressure measurement part is used to be inserted into the bladder through the insertion cannula 5 and stay in the bladder. The pressure measurement part is used to detect the bladder pressure and feedback the pressure data or information to the pressure measurement controller 1. The pressure measurement controller 1 is used to monitor the bladder pressure data and the working state of the pressure measurement device in real time, obtain the real-time bladder pressure, bladder temperature, bladder pressure curve graph, maximum bladder pressure, and bladder pressure change amplitude through calculation and processing, generate a bladder pressure monitoring report and evaluation opinion, and store and display them.

[0053] As Figures 1 to 3As shown, at least one pressure sensor 3 is provided on the outer peripheral wall at the end of the pressure measurement part. A groove is formed at the position of the pressure sensor 3. The pressure sensor 3 is arranged in the groove, and the pressure monitoring port of the pressure sensor 3 is lower than the upper surface of the groove. A wire channel is formed in the single-chamber tube 2 and the pressure measurement part. A transmission line is connected to the pressure sensor 3, and the transmission line passes through the wire channel and is electrically connected to the pressure measurement controller 1.

[0054] As Figure 1 , Figure 2 , Figure 11 , Figure 13 and Figure 14 As shown, the pressure measurement part has flexibility and elastic deformation ability. The pressure measurement part is in the shape of G, e, U or C, and the cross-sectional shape of the pressure measurement part is circular, oval, quadrilateral or C.

[0055] Specifically, as Figures 1 to 3 shown, one or more pressure sensors 3 can be provided. The transmission line is a soft thin wire, which is arranged in the single-chamber tube 2 and the pressure measurement part, and has both signal transmission and extraction traction functions. The pressure sensor 3 is fixedly encapsulated with the pressure measurement part. The pressure measurement part and the single-chamber tube 2 are plastic-sealed as a whole, and the signal interface of the single-chamber tube 2 is connected to the pressure measurement controller 1. The pressure sensor 3 transmits the bladder internal pressure and bladder internal temperature collected in real time to the pressure measurement controller 1 through the transmission line, realizing real-time monitoring of the internal pressure and temperature of the bladder.

[0056] When measuring the bladder pressure, the pressure measurement part is restricted in the lumen through the insertion tube 5, and the pressure measurement part is sent into the bladder. Then, the insertion tube 5 is withdrawn. After the pressure measurement part loses the restriction of the insertion tube 5, it gradually returns to its original shape and can return to the shape of G, e, U or C according to the actual shape of the pressure measurement part. As Figure 1 and Figure 2 shown, it can be restored to the G shape.

[0057] Preferably, as Figure 2 shown in (a) of Figure 2 , the single-chamber tube 2 and the pressure measurement part can be a split structure. Again, as Figure 3 shown in (b), the single-chamber tube 2 and the pressure measurement part can also be an integral structure; as

[0058] Embodiment 2

[0059] This embodiment is another implementation manner of Embodiment 1.

[0060] As Figures 4 to 10As shown, a cover 23 is slidably connected in the groove. The cover 23 and the insertion cannula 5 are sleeved and connected. The groove includes a limiting groove 22 and a sliding groove 21. The limiting groove 22 and the sliding groove 21 are communicated and the connection part has a smooth transition. The groove depth of the limiting groove 22 is greater than that of the sliding groove 21, and the groove lengths of the limiting groove 22 and the sliding groove 21 are equal. The sliding groove 21 is arranged at the end of the single lumen tube 2. An annular flange 51 is arranged at one end of the insertion cannula 5 close to the cover 23. A clamping groove for clamping with the annular flange 51 is formed at one end of the cover 23 close to the limiting groove 22. The outer peripheral wall radius of the cover 23 is the same as the outer diameter of the single lumen tube 2.

[0061] As Figures 6 to 9 shown, a rotating shaft is arranged between the limiting groove 22 and the sliding groove 21. A seesaw 24 is rotatably connected to the rotating shaft. The two ends of the seesaw 24 are respectively located in the limiting groove 22 and the sliding groove 21. At least one pressure sensor 3 is also arranged on the end face of the seesaw 24 on the side close to the sliding groove 21. The seesaw 24 on the side of the sliding groove 21 is an inclined plane.

[0062] Specifically, when performing cystometry on a patient, the cystometry device can be worn on the patient. Preferably, a strap that can be worn on the patient is arranged on the cystometry controller 1, which can not affect the patient's daily life during the cystometry process, and the patient does not need to stay in the hospital for observation. The cystometry part is sent into the bladder through the insertion cannula 5. The insertion cannula 5 is cylindrical, and its inner diameter is greater than the outer diameter of the single lumen tube 2 but less than the radius of the cover 23 when it is located in the sliding groove 21. After the insertion cannula 5 and the cover 23 are cooperatively connected, the cover 23 is slid to the sliding groove 21. Subsequently, the cystometry part is introduced into the bladder through the urethra through the insertion cannula 5. During the process of the insertion cannula 5 pushing the cover 23 into the bladder, the thrust of the insertion cannula 5 will limit the cover 23 in the sliding groove 21. When the cystometry part is in the bladder, the insertion cannula 5 can be separately pulled out, and the insertion cannula 5 is made to leave the cystometry part and leave the patient's body along the urethra.

[0063] Preferably, the end of the inserted cannula 5 is provided with an annular flange 51, and a clamping groove is provided on one side of the covering 23 facing the limiting groove 22. During preoperative preparation, the annular flange 51 can be clamped into the clamping groove. It should be noted that the materials of the annular flange 51 and the covering 23 can preferably be flexible materials with relatively hard textures. When pulling out the inserted cannula 5 outward, as described above, the annular flange 51 drives the covering 23 to move towards the limiting groove 22. The groove depth of the limiting groove 22 is greater than that of the sliding groove 21. Therefore, when the covering 23 moves to the limiting groove 22, the radius of the single-chamber tube 2 changes and it tilts towards the limiting groove 22 and moves into the limiting groove 22. The annular flange 51 also leaves the clamping groove due to the change in radius after the covering 23 enters the limiting groove 22. Continuing to pull the inserted cannula 5 makes the covering 23 completely located in the limiting groove 22. As the inserted cannula 5 leaves the single-chamber tube 2, the extrusion force on the single-chamber tube 2 disappears and it gradually returns to its original shape. The shape of the pressure measuring part can be G-shaped, e-shaped, U-shaped or C-shaped, which can deform and is not easy to slip out inside the bladder.

[0064] When the covering 23 slides to the limiting groove 22, the seesaw 24 at the bottom of the limiting groove 22 is pressed. Under the action of the rotating shaft, the seesaw 24 at the bottom of the sliding groove 21 rises, and the pressure sensor 3 at this place is exposed outside the sliding groove 21. The pressure sensor 3 at the sliding groove 21 is an inclined surface, which can keep the seesaw 24 at the sliding groove 21 parallel to the single-chamber tube 2 when it moves upward. During the process of the covering 23 entering the bladder, it is used to protect the pressure sensor 3 to prevent the pressure sensor 3 from contacting the inner wall of human tissue and affecting the transmission data of the pressure sensor 3 when it is not stable in the bladder; at the same time, the covering 23 is smooth, which can protect human tissue from being scratched by multiple pressure sensors 3 and avoid secondary injury to the patient.

[0065] After the detection is completed, the transmission line or the single-chamber tube 2 on the single-chamber tube 2 can be directly pulled. The single-chamber tube 2 can be moved out of the body along the bladder and urethra. During the movement, the covering 23 loses the limiting effect of the inserting tool, and when the single-chamber tube 2 is pulled out, one side of the limiting groove 22 is exposed first. Therefore, during the pulling-out process, the covering 23 will move towards the sliding groove 21 when it contacts human tissue. Even if the moving distance is a little bit, it will cause the seesaw 24 to change, making the seesaw 24 at one end of the pressure sensor 3 move downward, avoiding the pressure sensor 3 from contacting the urethra during the passage through the urethra and affecting the measurement data or causing harm to the human body. Preferably, the four sides of the covering 23 are smooth curved surfaces.

[0066] Embodiment 3

[0067] As Figure 11 and Figure 13 shown, the pressure measuring part is provided with a pressure measuring airbag 4, and air holes penetrate through the end or the outer circumferential side wall of the pressure measuring part. The air holes are communicated with the lumen of the single-chamber tube 2 and the inner cavity of the pressure measuring airbag 4.

[0068] Specifically, as Figure 11 shown, a pressure measuring airbag 4 is provided at the end of the pressure measuring part. During the manufacturing process, gas with a set pressure is injected into the pressure measuring airbag 4 through the single-chamber tube 2. After the pressure measuring airbag 4 is inflated and expanded, the rear end of the single-chamber tube 2 is fixedly and hermetically connected to the pressure measuring port of the pressure sensor 3 in the pressure measuring controller 1 as a whole, realizing the connection between the pressure measuring airbag 4 and the pressure sensor 3 in the pressure measuring controller 1 and implementing pressure measurement.

[0069] Preferably, as Figure 11 shown in Figure (f) therein, the pressure measuring airbag 4 can be provided on the outer circumferential wall of the pressure measuring part and gas is injected through the air holes, or as shown in Figure (g), the pressure measuring airbag 4 is provided at the end of the pressure measuring part and the air holes are opened at the end of the pressure measuring part for injecting gas.

[0070] Embodiment 4

[0071] This embodiment is another implementation manner of Embodiment 3.

[0072] As Figure 12 shown, a plurality of annular grooves are formed on the outer peripheral wall of the pressure measuring airbag 4. The grooves are used to divide the pressure measuring airbag 4 into several chambers, and each chamber communicates with each other. A pressure sensor 3 is also provided in each chamber. The pressure sensor 3 is used to be electrically connected to the pressure measuring controller 1 through the transmission line in the single-chamber tube 2. The grooves are annular, and the grooves coincide or are inclined with the axis of the single-chamber tube 2.

[0073] Specifically, this embodiment is basically the same as Embodiment 1, and the only difference is that the pressure measuring part in this embodiment is the pressure measuring airbag 4.

[0074] In this embodiment, a plurality of grooves are provided on the outer peripheral wall of the pressure measuring airbag 4. The pressure measuring airbag 4 at the grooves is relatively thicker in texture than other positions of the airbag. Before the pressure measuring airbag 4 enters the bladder, it is completely wrapped in the lumen of the placement cannula 5. The placement cannula 5 guides the pressure measuring airbag 4 into the bladder for pressure measurement. The grooves can divide the airbag into several chamber regions, and each chamber region communicates with each other. In this embodiment, air holes are opened on the single-chamber tube 2 at the position of the pressure measuring airbag 4 for inflating the pressure measuring airbag 4.

[0075] Usage method: Still send the single-chamber tube 2 into the bladder through the placement cannula 5, limit the pressure measuring airbag 4 in the lumen of the placement cannula 5. After the pressure measuring part is sent into the bladder as in Embodiment 1, the placement cannula 5 can be taken out, and the pressure measuring part remains in the bladder. The pressure sensor 3 in the pressure measuring controller 1 is connected to the pressure measuring airbag 4, and the bladder pressure can be directly obtained.

[0076] Preferably, a pressure sensor 3 can be additionally arranged in each chamber of the pressure measuring airbag 4. A diaphragm is arranged between adjacent chambers and provided with leakage holes. Due to the arrangement of multiple chambers of the pressure measuring airbag 4, it can be detected in real time when there is an abnormality in the patient's bladder. Under normal circumstances, the pressure values in multiple connected chambers are equal. If there is a lesion inside the patient, such as a foreign body or tumor in the bladder, it will cause a certain chamber to be compressed, and the gas in this chamber will overflow through the leakage holes on the diaphragm of the adjacent chamber, resulting in an increase in the pressure value of the pressure sensor 3 in this chamber. By combining with the pressure measuring controller 1, several feedback pressure data can be obtained to know which specific part has a problem and timely treat the patient. When the bladder pressure is uneven, relatively subtle changes can be reflected compared to a single airbag.

[0077] Embodiment 5

[0078] As Figure 14 shown, a through hole is opened at one end of the single-chamber tube 2 away from the pressure measuring controller 1, and the through hole is communicated with the lumen of the single-chamber tube 2.

[0079] Specifically, this embodiment is basically the same as Embodiment 3. In this embodiment, the design of the pressure measuring airbag 4 is cancelled. A through hole is opened on the pressure measuring part to communicate with the bladder, and the end of the pressure measuring part is connected to the pressure measuring port of the pressure measuring sensor inside the pressure measuring controller 1 for measuring the pressure of the bladder. Similarly, the single-chamber tube 2 can also be introduced into the bladder through the insertion cannula 5 for pressure measurement.

[0080] Embodiment 6

[0081] This embodiment provides a method for using an internal bladder pressure measuring device. Pressure measurement is performed according to the internal bladder pressure measuring device described in Embodiments 1 to 5, including the following steps:

[0082] S1. Preoperative preparation;

[0083] S2. Sleeve the insertion cannula 5 outside the pressure measuring assembly and check whether the pressure measuring assembly is connected to the pressure measuring controller 1;

[0084] S3. Use the insertion cannula 5 to send the pressure measurement part into the bladder through the urethra. Pull out the insertion cannula 5. The force exerted by the insertion cannula 5 on the pressure measurement part disappears and it deforms, automatically restoring its original shape and remaining in the bladder. Then, wear the pressure measurement controller 1 on the patient or paste it on the patient's abdomen or thigh, and start measuring pressure through the pressure sensor 3. When the pressure measurement part is the pressure measurement airbag 4, during its manufacturing process, inject gas with a set pressure into the pressure measurement airbag 4 through the single-chamber tube 2. After the pressure measurement airbag 4 is inflated and expanded, the rear end of the single-chamber tube 2 is fixedly and hermetically connected to the pressure measurement port of the pressure sensor 3 in the pressure measurement controller 1 as a whole and fixed on the pressure measurement controller 1. Calibrate this pressure measurement device according to the pressure value of the pressure measurement airbag after injecting gas, and the bladder pressure can be directly obtained during measurement;

[0085] S4. The pressure measurement controller 1 records, calculates, and processes the data measured by the pressure sensor 3, and issues an alarm when the bladder pressure value exceeds the set safety bladder pressure warning value or the pressure measurement device shows an abnormality;

[0086] S5. At the start and end of the detection, the pressure measurement controller 1 also has an operation prompt function and an alarm function. After completing the pressure measurement, pull out the pressure measurement part in the bladder by pulling the transmission line outside the body or the single-chamber tube 2.

[0087] The above specific implementation manners have further elaborated on the purpose, technical solutions, and beneficial effects of the present invention. It should be understood that the above are only the specific implementation manners of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A built-in bladder pressure measuring device, comprising a pressure measuring controller (1) and a pressure measuring assembly, wherein the pressure measuring assembly is connected to the pressure measuring controller (1), characterized in that: The pressure measuring assembly comprises a single-lumen tube (2) and a pressure measuring part, one end of the single-lumen tube (2) is connected to a signal end of a pressure measuring controller (1), and the pressure measuring part is connected to an end of the single-lumen tube (2) away from the pressure measuring controller (1); The pressure measuring unit is used to be inserted into the bladder through the insertion cannula (5) and remain in the bladder, the pressure measuring unit is used to detect the bladder pressure and feed back the pressure data or information to the pressure measuring controller (1), the pressure measuring controller (1) is used to monitor the bladder pressure data and the working state of the pressure measuring device in real time, obtain the real-time bladder pressure, bladder temperature, bladder pressure curve, maximum bladder pressure, bladder pressure change amplitude through calculation processing, generate a bladder pressure monitoring report and evaluation opinion, and store and display them; At least one pressure sensor (3) is arranged at the end portion or the outer peripheral wall of the pressure measuring portion, a groove is provided at the pressure sensor (3), the pressure sensor (3) is arranged in the groove, and the pressure monitoring port of the pressure sensor (3) is lower than the upper surface of the groove, a wire channel is provided in the single-lumen tube (2) and the pressure measuring portion, a transmission line is connected to the pressure sensor (3), and the transmission line passes through the wire channel and is electrically connected to the pressure measuring controller (1); A cover (23) is slidably connected in the groove, and the cover (23) and the insertion tube (5) are sleeve-connected. The groove comprises a limit groove (22) and a slide groove (21). The limit groove (22) and the slide groove (21) are connected and the connection is smoothly transitioned. The groove depth of the limit groove (22) is greater than the groove depth of the slide groove (21). The groove lengths of the limit groove (22) and the slide groove (21) are equal. The slide groove (21) is arranged near the end of the single-lumen tube (2). An annular flange (51) is arranged at one end of the insertion tube (5) near the cover (23). A clamping groove for clamping with the annular flange (51) is provided at one end of the cover (23) near the limit groove (22). The radius of the outer peripheral wall of the cover (23) is the same as the outer diameter of the single-lumen tube (2). A rotating shaft is provided between the limiting groove (22) and the sliding groove (21), and a seesaw (24) is rotatably connected to the rotating shaft. Two ends of the seesaw (24) are respectively located in the limiting groove (22) and the sliding groove (21). At least one pressure sensor (3) is also provided on the end surface of the seesaw (24) close to the sliding groove (21). The seesaw (24) located on one side of the sliding groove (21) is an inclined surface.

2. The internal bladder pressure measuring device according to claim 1, characterized in that: The pressure measuring portion has flexibility and elastic deformation capability, the shape of the pressure measuring portion is G-shaped, e-shaped, U-shaped or C-shaped, and the cross-sectional shape of the pressure measuring portion is circular, elliptical, quadrilateral or C-shaped.

3. A built-in bladder pressure measuring device, comprising a pressure measuring controller (1) and a pressure measuring assembly, wherein the pressure measuring assembly is connected to the pressure measuring controller (1), characterized in that: The pressure measuring assembly comprises a single-lumen tube (2) and a pressure measuring part, one end of the single-lumen tube (2) is connected to a signal end of the pressure measuring controller (1), and the pressure measuring part is connected to an end of the single-lumen tube (2) away from the pressure measuring controller (1); The pressure measuring unit is used to be inserted into the bladder through the insertion cannula (5) and remain in the bladder, the pressure measuring unit is used to detect the bladder pressure and feed back the pressure data or information to the pressure measuring controller (1), the pressure measuring controller (1) is used to monitor the bladder pressure data and the working state of the pressure measuring device in real time, obtain the real-time bladder pressure, bladder temperature, bladder pressure curve, maximum bladder pressure, bladder pressure change amplitude through calculation processing, generate a bladder pressure monitoring report and evaluation opinion, and store and display them; The pressure measuring part is provided with a pressure measuring airbag (4), and an air hole is penetrated through the end portion or the outer circular side wall of the pressure measuring part, and the air hole is connected with the lumen of the single-lumen tube (2) and the inner cavity of the pressure measuring airbag (4); A plurality of annular grooves are formed on the outer peripheral wall of the pressure measuring airbag (4), and the grooves are used to divide the pressure measuring airbag (4) into a plurality of chambers. Each of the chambers is interconnected, and a pressure sensor (3) is also arranged in the chamber. The pressure sensor (3) is used to be electrically connected to the pressure measuring controller (1) through a transmission line in the single-lumen tube (2). The groove is annular, and the axis of the groove and the single-lumen tube (2) coincide or are inclined.

4. The internal bladder pressure measuring device according to claim 3, characterized in that: A through hole is provided at one end of the pressure measuring part away from the pressure measuring controller (1), and the through hole is in communication with the lumen of the pressure measuring part.

5. The internal bladder pressure measuring device according to claim 3, characterized in that: The pressure measuring portion has flexibility and elastic deformation capability, the shape of the pressure measuring portion is G-shaped, e-shaped, U-shaped or C-shaped, and the cross-sectional shape of the pressure measuring portion is circular, elliptical, quadrilateral or C-shaped.

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