Urodynamic pressure measuring and detecting device

Abstract

The application provides a urodynamic pressure measurement detection device, comprising: a bladder pressure detection member, which comprises a first catheter and a first pressure sensor, the first catheter is inserted into the bladder of a patient, a perfusion hole formed in the first catheter inputs liquid into the bladder of the patient to simulate the bladder filling state, the first pressure sensor is arranged at the front end of the first catheter, and the first catheter is connected with the first pressure sensor; the pressure sensor is used for detecting bladder pressure in the bladder; the rectum pressure detection part comprises a second catheter, a filling balloon and a second pressure sensor, the second catheter is inserted into the rectum of the patient, the filling balloon is arranged on the second catheter and is filled with a medium through an injection hole in the second catheter so as to expand and fill the rectum, and the second pressure sensor is arranged on the second catheter and is located in the filling balloon; the rectum pressure in the rectum is detected; urodynamic parameters are obtained through bladder pressure and rectum pressure. The problems that in the prior art, medical staff cannot read urodynamic parameter information conveniently, and the occupied medical space is large are solved.

Description

Technical Field

[0001] The present application relates to the field of urological medical devices, and in particular to a urine dynamics pressure measurement detection device. Background Art

[0002] Urodynamic testing is based on the principles of fluid mechanics, using electrophysiological methods and sensor technology to detect the pressure, flow rate and bioelectric activity of the organs of the lower urinary tract (bladder, urethra, rectum, etc.), so as to evaluate the type and mechanism of urinary dysfunction. Accurate urodynamic testing is an ideal method for intuitively quantifying lower urinary tract function, and is the gold standard for diagnosing and evaluating lower urinary tract dysfunction. It has become a routine examination item in urology clinical practice.

[0003] The urodynamic detector currently in use uses a water column scale to reflect the detection pressure of the bladder and rectum. Medical staff can only read the pressure information through the height of the water column, but cannot directly read the urodynamic parameter information, which makes it inconvenient to use. In addition, the structure of the water column urodynamic detector is usually large in size, resulting in the problem of occupying a large medical space and being inconvenient to move.

[0004] Therefore, the prior art still needs to be improved and developed. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present application is to provide a urodynamic pressure measurement detection device, which solves the problem that when the water column urodynamic detector in the prior art is used, it is inconvenient for medical staff to read the urodynamic parameter information and it occupies a large medical space.

[0006] The present application provides a urodynamic pressure detection device, comprising: a bladder pressure detection member, the bladder pressure detection member comprising: a first catheter and a first pressure sensor, the first catheter is used to be inserted into the patient's bladder, an infusion hole is provided on the first catheter, the infusion hole is used to input liquid into the patient's bladder to simulate the bladder filling state, the first pressure sensor is arranged at the front end of the first catheter, and is used to detect the bladder pressure in the bladder;

[0007] and a rectal pressure detection member, the rectal pressure detection member comprising a second catheter, a filling balloon and a second pressure sensor, the second catheter being used to be inserted into the rectum of a patient, the filling balloon being arranged on the second catheter and being filled with a medium through an injection hole in the second catheter to expand and fill the rectum, the second pressure sensor being arranged on the second catheter and located in the filling balloon and being used to detect the rectal pressure in the rectum;

[0008] Urodynamic parameters are calculated from bladder pressure and rectal pressure.

[0009] Optionally, the first catheter is also provided with a first anti-slip airbag, which is arranged at the rear side of the infusion hole. The first anti-slip airbag is expanded by the gas filled into the first catheter, and the expanded first anti-slip airbag is used to be stuck in the inner opening of the urethra.

[0010] Optionally, the front end of the first catheter can be bent to form a bendable adjustment section, and the first anti-slip airbag is located on the bendable adjustment section.

[0011] Optionally, a hydrophilic material layer is provided on the outer wall of the first conduit.

[0012] Optionally, the hydrophilic material layer is a mixed material layer of polyvinyl pyrrolidone and lidocaine.

[0013] Optionally, the filled balloon in the expanded state comprises: a positioning segment and a detection segment, wherein the volume of the positioning segment is smaller than the volume of the detection segment;

[0014] The clamping section is used to clamp in the anal canal;

[0015] The detection section is used to be filled in the rectum, and the second pressure sensor is located in the detection section.

[0016] Optionally, the inflated balloon in the expanded state further includes: an extension section, the extension section being arranged in communication between the positioning section and the detection section;

[0017] Along the axial direction of the second catheter, the front-to-back length of the locking section and the front-to-back length of the detection section are both smaller than the extension length of the extension section.

[0018] Optionally, the locking segment in the expanded state gradually moves away from the second catheter in a direction from front to back.

[0019] Optionally, a second anti-detachment airbag is provided on the second catheter, and the second anti-detachment airbag is independently spaced apart from the inflation balloon;

[0020] The second anti-falling air bag is expanded by the gas filled into the second catheter, and the expanded second anti-falling air bag is used to be stuck in the anal canal.

[0021] Optionally, the urodynamic pressure measurement detection device further includes an external processor;

[0022] A first wireless transmitter is disposed at the tail end of the first catheter, and the first wireless transmitter is electrically connected to the first pressure sensor;

[0023] A second wireless transmitter is disposed at the tail end of the second catheter, and the second wireless transmitter is electrically connected to the second pressure sensor;

[0024] The first pressure sensor is used to wirelessly transmit the bladder pressure to the external processor, and the second pressure sensor is used to wirelessly transmit the rectal pressure to the external processor. The external processor calculates and obtains the urodynamic parameters according to the bladder pressure and the rectal pressure.

[0025] Beneficial effects: A urodynamic pressure detection device in the present application inserts a bladder pressure detection component into the bladder from the patient's urethra, and injects liquid into the bladder from the irrigation hole through the first catheter, thereby simulating the filling state of the bladder; when the bladder is filled, the bladder contracts and squeezes the internal liquid to change the water pressure, so that the first pressure sensor located in the liquid detects the bladder pressure in the bladder, and the first pressure sensor can directly perform pressure detection in the bladder to generate a detection electrical signal, and the electrical signal can be directly converted into analog to digital to obtain a specific bladder pressure value. The rectal pressure detection component is inserted into the rectum from the patient's anus, and the medium is injected from the injection hole through the second catheter, so that the filling balloon expands and fills the rectum. The contraction of the rectum can squeeze the filling balloon, so that the filling balloon is pressurized and detected by the second pressure sensor inside the filling balloon, so that the second pressure sensor generates a detection electrical signal, and the electrical signal can be directly converted into analog to digital to obtain a specific rectal pressure value. The urodynamic parameters can be directly obtained through calculation based on the measured bladder pressure and rectal pressure. It realizes intuitive measurement of the patient's urodynamic parameters, facilitates the detection process, and makes it more convenient for medical staff to read the urodynamic parameter information. Moreover, the first pressure sensor and the second pressure sensor both transmit information through electrical signals. Compared with the water column urodynamic detector, the structure is small in size, so it occupies less medical space, is more convenient to move, and is more conducive to medical use by medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the wireless connection status of a urine dynamic pressure measurement detection device according to an embodiment of the present application.

[0027] Figure 2 This is a cross-sectional view of the front end structure of a bladder pressure detection component of a urine dynamic pressure measurement detection device according to an embodiment of the present application.

[0028] Figure 3 This is a schematic diagram of the principle of a bladder pressure detection component of a urine dynamic pressure measurement detection device in an embodiment of the present application when in use.

[0029] Figure 4 This is a schematic structural diagram of a second filling balloon of a rectal pressure detection component of a urodynamic pressure measurement detection device according to an embodiment of the present application.

[0030] Figure 5 This is a schematic structural diagram of a third filling balloon of a rectal pressure detection component of a urine dynamic pressure detection device according to an embodiment of the present application;

[0031] Figure 6 This is a schematic diagram of the principle of a third filling balloon of a rectal pressure detection component of a urine dynamic pressure measurement detection device in an embodiment of the present application when in use.

[0032] Figure 7 It is a structural schematic diagram of another rectal pressure detection component of a urine dynamic pressure detection device according to an embodiment of the present application;

[0033] Figure 8 A schematic diagram of the wired connection status of a urine dynamic pressure measurement detection device according to an embodiment of the present application.

[0034] In the figure: 1, bladder; 2, urethra; 3, anus; 4, rectum; 100, bladder pressure detection part; 110, first catheter; 120, first pressure sensor; 121, wire pipeline; 130, injection pipeline; 131, perfusion hole; 140, first anti-slip airbag; 141, first inflation pipeline; 150, bendable adjustment section; 160, hydrophilic material layer; 200, rectal pressure detection part; 210, second catheter; 211, injection hole; 220, filling balloon; 221, detection section; 222, extension section; 223, positioning section; 224, thickening ring; 225, support space; 230, second pressure sensor; 240, second anti-slip airbag; 300, external processor. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present application clearer and more specific, the present application is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific examples described here are only used to explain the present application and are not used to limit the present application.

[0036] The existing water column urodynamic detector is not only inconvenient for medical staff to read data, but also has the problem of large structure space and inconvenient movement. In addition, during the detection process, the urodynamic detector needs to inject liquid into the patient's bladder. The pipe that enters the bladder from the urethra is not easy to fix during the detection process, and stable detection cannot be achieved. The urethral tissue is greatly stimulated during the entry process, causing discomfort to the patient, and even causing pain, resulting in poor medical experience for the patient. Therefore, the present application proposes a urodynamic pressure measurement detection device through the following embodiments to solve the above-mentioned problems.

[0037] like Figure 1 As shown, this embodiment provides a urine dynamic pressure detection device, which mainly includes: a bladder pressure detection component 100 and a rectal pressure detection component 200, as shown in FIG. Figure 1 , Figure 3As shown, the bladder pressure detection member 100 is used to be inserted into the bladder 1 for pressure detection, and the rectal pressure detection member 200 is used to be inserted into the rectum 4 for pressure detection. For the convenience of structural description, the end of the bladder pressure detection member 100 inserted into the bladder 1 is the front end, and the other end relative to the front end is the rear end. The end of the rectal pressure detection member 200 inserted into the rectum 4 is the front end, and the other end relative to the front end is the rear end. With the above front-to-back direction as a reference, the specific structure of the urine dynamic pressure detection device is described.

[0038] like Figure 1 , Figure 2 , Figure 3 As shown in the specific structure, the bladder pressure detection component 100 includes: a first catheter 110 and a first pressure sensor 120. The first catheter 110 is used as a main body to be inserted into the patient's bladder 1. The first catheter 110 is provided with a wire tube 121 and a liquid injection tube 130. A perfusion hole 131 is provided near the front end of the first catheter 110. The perfusion hole 131 is connected to the liquid injection tube 130. The rear end of the liquid injection tube 130 can be connected to an external pump through a joint. The liquid is filled into the liquid injection tube 130 through the pump, and then the liquid is input into the patient's bladder 1 through the perfusion hole 131, so that the patient's bladder 1 is expanded, and the purpose of simulating the filling state of the bladder 1 is achieved. The first pressure sensor 120 is arranged at the front end of the first catheter 110 and is used to detect the bladder 1 pressure in the bladder 1; the first pressure sensor 120 adopts a water pressure sensor, which generates an electrical signal by detecting the change of water pressure. By performing analog-to-digital conversion on the electrical signal, a specific pressure value can be directly obtained. The first pressure sensor 120 can be a micro water pressure sensor. The current micro water pressure sensor can be made very small. The diameter of the micro water pressure sensor can be selected from 1mm to 2.5mm. The specific diameter depends on the design and application requirements of the first catheter 110. As long as the diameter of the micro water pressure sensor is not larger than the diameter of the first catheter 110, the technical effect can be achieved. The first pressure sensor 120 is set on the end face of the front end of the first catheter 110, so that the first pressure sensor 120 can be placed in the bladder 1 to detect the liquid pressure in the bladder 1. The first pressure sensor 120 is deformed by the squeezing of water pressure, thereby generating a detection electrical signal. The first pressure sensor 120 can conduct the electrical signal through the wire in the wire pipe 121 in the first catheter 110. The detected electrical signal can be amplified, analog-to-digital converted, etc., and the specific measured pressure value can be directly obtained.

[0039] like Figure 1 , Figure 6As shown, the rectal pressure detection member 200 in this embodiment specifically includes a second catheter 210, a filling balloon 220 and a second pressure sensor 230. A filling pipeline (not shown in the figure) and a wire pipeline (not shown in the figure) are arranged in the second catheter 210, an injection hole 211 is opened on the side wall of the front end of the second catheter 210, the filling balloon 220 is arranged on the second catheter 210 and is connected to the injection hole 211, the injection hole 211 is connected to the filling pipeline, and the rear end of the filling pipeline is connected to an external pump or inflator through a joint. The second catheter 210 extends to the inside of the filling balloon 220, and a second pressure sensor 230 is arranged on the end face of the front end of the second catheter 210. When the second catheter 210 is inserted into the patient's rectum 4 through the anus 3, a medium (which can be liquid or gas) is filled into the filling pipe through a pump or an inflator, and the medium enters the filling balloon 220 through the injection hole 211, so that the filling balloon 220 expands and fills the rectum 4. The contraction of the rectum 4 can squeeze the filling balloon 220, so that the filling balloon 220 is pressurized and the second pressure sensor 230 inside the filling balloon 220 detects the pressure of the rectum 4. The size of the second pressure sensor 230 can be larger than the size of the first pressure sensor 120, and can be installed at the front end of the second catheter 210 to meet the use requirements. The second pressure sensor 230 can conduct electrical signals through the wires in the wire pipe in the second catheter 210, and the detected electrical signals can be amplified, analog-to-digital converted, etc., and the specific measured pressure value can be directly obtained. Since the analog-to-digital conversion is performed on the electrical signals, data processing is convenient, and the existing electrical signal processing circuit is also simple, occupies a small space, and the data processing is accurate and stable, and can be directly used for data display. Therefore, the urodynamic parameters are calculated by the bladder 1 pressure and the rectal 4 pressure.

[0040] like Figure 1 , Figure 3 , Figure 6As shown, the urodynamic pressure detection device in this embodiment is to insert the bladder pressure detection member 100 from the patient's urethra 2 into the bladder 1, and inject liquid into the bladder 1 from the irrigation hole 131 through the first catheter 110, so as to simulate the filling state of the bladder 1; when the bladder 1 is filled, the bladder 1 contracts and squeezes the internal liquid to change the water pressure, so that the first pressure sensor 120 located in the liquid detects the bladder 1 pressure in the bladder 1. The rectal pressure detection member 200 is inserted from the patient's anus 3 into the rectum 4, and the medium is injected from the injection hole 211 through the second catheter 210, so that the filling balloon 220 expands and fills the rectum 4. The contraction of the rectum 4 can squeeze the filling balloon 220, so that the filling balloon 220 is pressurized and detected by the second pressure sensor 230 inside the filling balloon 220, so that the second pressure sensor 230 detects the rectum 4 pressure. The urodynamic parameters can be directly obtained through calculation based on the measured bladder 1 pressure and rectum 4 pressure. The patient's urodynamic parameters can be measured intuitively, which is convenient for the detection process and makes it more convenient for medical staff to read the urodynamic parameter information. Moreover, the first pressure sensor 120 and the second pressure sensor 230 both transmit information through electrical signals. Compared with the water column urodynamic detector, the structure is small in size, so it occupies less medical space, is more convenient to move, and is more conducive to medical use by medical staff. This embodiment adopts a digital processing method to directly output the results and optimize the structure.

[0041] like Figure 1 , Figure 2 , Figure 3 As shown, the first catheter 110 in this embodiment is also provided with a first anti-slip airbag 140. In the specific structure, a first inflation pipe 141 is opened in the first catheter 110, and the front end opening of the first inflation pipe 141 is located on the side wall of the first catheter 110 and is spaced a distance from the infusion hole 131; the rear end of the first inflation pipe 141 is connected to an external inflator (such as a syringe), and the first anti-slip airbag 140 is arranged on the rear side of the infusion hole 131, and the first anti-slip airbag 140 is connected to the front end opening of the first inflation pipe 141. The first anti-slip airbag 140 is inflated by the gas filled into the first inflation pipe 141 in the first catheter 110, and the inflated first anti-slip airbag 140 is spherical, so that the inflated first anti-slip airbag 140 is used to be stuck in the inner opening of the urethra 2, and the inner opening of the urethra 2 is the connection between the urethra 2 and the bladder 1. Since the inflated first anti-slip airbag 140 is stuck in the inner opening of the urethra 2, the first catheter 110 is not easy to slip out from the inner opening of the urethra 2, so the first catheter 110 is stably fixed in the bladder 1, thereby ensuring the stable detection of the first pressure sensor 120 in the bladder 1 and improving the accuracy of the detection data.

[0042] like Figure 1 , Figure 3As shown, further, the front end of the first catheter 110 can be bent to form a bendable adjustment section 150, the bendable adjustment section 150 is made of a plastic material, and the first anti-slip airbag 140 is located on the bendable adjustment section 150. When the first anti-slip airbag 140 is not inflated, the entire bendable adjustment section 150 can be bent and shaped to adjust the shape of the front end of the first catheter 110, and specifically can be bent into an arc-shaped structure according to the curvature of the patient's urethra 2. Compared with the straight head end of the existing urodynamic pressure measurement catheter, the bendable adjustment section 150 is used for shaping, and during the insertion into the urethra 2, the first catheter 110 can pass through the bend or narrow part of the urethra 2 more smoothly, especially during the intubation process, it is not easy to cause intubation difficulties or pain for patients with prostatic hyperplasia or bladder neck obstruction.

[0043] like Figure 2 As shown, further, a hydrophilic material layer 160 is provided on the outer wall of the first catheter 110 of this embodiment. Since the friction force of the ordinary first catheter 110 on the urethra 2 is large during insertion, it is easy to cause pain or bleeding. Therefore, the hydrophilic material layer 160 is used on the surface of the first catheter 110. The hydrophilic coating material can significantly reduce the friction force on the surface of the first catheter 110, thereby reducing the damage to the urethra 2 tissue during insertion and operation.

[0044] Furthermore, the hydrophilic material layer 160 of the present embodiment is a mixed material layer of polyvinyl pyrrolidone and lidocaine. Among them, polyvinyl pyrrolidone (PVP) is a common hydrophilic coating material, which can significantly reduce the friction of the guide wire surface, thereby reducing damage to the tissue during insertion and operation. Lidocaine is a local anesthetic that can reduce the pain and discomfort after the catheter is placed into the urethra 2. Therefore, lidocaine particles are incorporated into the polyvinyl pyrrolidone (PVP) material to obtain a mixed material layer, so that the hydrophilic material layer 160 not only reduces the surface friction of the first catheter 110, but also through the action of the surface lidocaine, it has a local anesthetic effect on the urethra 2 tissue, greatly reducing the patient's discomfort.

[0045] like Figure 1 As shown, for the second catheter 210, a long straight tube structure can be adopted, and the filling balloon 220 is set on the outside of the second catheter 210 and attached to the surface of the second catheter 210 when not expanded. Since the structure of the anus 3 is conducive to the catheter entering, the diameter of the second catheter 210 can be larger. The structure of the filling balloon 220 on the second catheter 210 can be set in a variety of ways. The details are as follows:

[0046] like Figure 1As shown, in the structure of the first filling balloon 220, the filling balloon 220 in the expanded state only includes a detection section 221, which is sleeved on the outside of the front end of the second catheter 210, and the second pressure sensor 230 at the front end of the second catheter 210 is located inside the detection section 221. The medium is injected through the injection hole 211 on the second catheter 210 to expand. For the convenience of detection, the injected medium is preferably liquid. The injected liquid expands the detection section 221 into a spherical shape. The expanded detection section 221 is squeezed by the wall of the rectum 4 in the rectum 4, thereby causing the liquid pressure in the detection section 221 to change. The change in liquid pressure causes the second pressure sensor 230 to generate a detection electrical signal, thereby realizing the detection of the rectum 4 pressure.

[0047] like Figure 1 , Figure 4 , Figure 6 As shown, in the structure of the second filling balloon 220, the filling balloon 220 in the expanded state includes: a clamping section 223 and a detection section 221, and there is a thickening ring 224 between the clamping section 223 and the detection section 221. The elasticity of the thickening ring 224 is relatively small, so that when the filling balloon 220 is filled with water, the filling balloon 220 in the expanded state can form a clamping section 223 and a detection section 221 of different shapes. The volume of the clamping section 223 is smaller than that of the detection section 221. The volume of the clamping section 223 is small, and it only needs to be clamped in the anal canal after expansion to prevent the second catheter 210 from falling out of the anus 3; the anal canal is the connection between the anus 3 and the rectum 4. After the clamping section 223 is clamped in the anal canal, the part of the second catheter 210 extending into the rectum 4 can be kept stable in the position of the rectum 4. The detection section 221 at the front end of the clamping section 223 is relatively large in volume, and the detection section 221 is used to fill the rectum 4 and can contact the inner wall of the rectum 4. The second pressure sensor 230 is located in the detection section 221. In this way, the pressure response to the rectum 4 is more sensitive, making the detection of the second sensor more accurate. In addition, since the volume of the clamping section 223 is smaller than that of the detection section 221, when the detection section 221 is against the inner wall of the rectum 4, the clamping section 223 can maintain a certain gap with the inner wall of the rectum 4, only contacting the bottom wall of the anal canal, and less contacting or not contacting the side wall of the anal canal. In this way, the deformation of the side wall of the anal canal caused by the contraction of the anus 3 can be a small amount, or even not contact the clamping section 223, so the contraction of the anus 3 has little effect on the liquid pressure change in the filling balloon 220, or even no effect. Thereby, the pressure detected by the second pressure sensor 230 is basically the pressure of the rectum 4, ensuring the accuracy of the pressure detection of the rectum 4.

[0048] like Figure 1 , Figure 5 , Figure 6As shown in the third structure of the filled balloon 220, the filled balloon 220 in the expanded state includes not only the locking section 223 and the detection section 221, but also the extension section 222. The extension section 222 is connected and arranged between the locking section 223 and the detection section 221, forming a three-section structure of the detection section 221, the extension section 222 and the locking section 223 from front to back. A thickening ring 224 is arranged at the connection between the detection section 221 and the extension section 222, and a thickening ring 224 is arranged at the connection between the extension section 222 and the locking section 223. The elastic deformation of the thickening ring 224 is reduced, so that the detection section 221, the extension section 222 and the locking section 223 are deformed in a small manner. After inflation, the detection section 221 forms different volumes and even different shapes. In order to make the shape of the three-stage structure stable, the thickness of the capsule layer of the detection section 221, the extension section 222 and the clamping section 223 is also different. The capsule layer thickness of the clamping section 223 and the extension section 222 are both greater than the capsule layer thickness of the detection section 221. This ensures that the thinner detection section 221 can sensitively respond to the extrusion of the rectum 4 and deform, thereby making the pressure detection more accurate; while the thicker clamping section 223 and the extension section 222 can not only form a predetermined shape after expansion, but also react less to the extrusion of other muscles after the rectum 4, effectively reducing the interference in the pressure detection process. In the specific structure after expansion, the detection section 221 can form a sphere with a relatively large diameter, so that it can abut against the inner wall of the rectum 4. The extension section 222 can form a long column with a relatively small diameter, which mainly plays a connecting role and extends a certain length, which can alleviate the problem that the clamping section 223 affects the pressure detection of the detection section 221 due to the contraction and deformation of the anus 3. The clamping section 223 can form a conventional spherical shape. Along the axial direction of the second catheter 210, the front-to-back length of the clamping section 223 and the front-to-back length of the detection section 221 are both smaller than the extension length of the extension section 222. When the front-to-back length of the clamping section 223 is set to be longer, even if the clamping section 223 is squeezed due to the contraction of the anus 3, the clamping section 223 increases the volume of the entire filling balloon 220, so that the water pressure change of the detection section 221 is relatively small, thereby reducing the influence of the clamping section 223 on the pressure detection of the rectum 4. In addition, since the front-to-back length of the extension section 222 is longer, the detection section 221 can penetrate deeper into the rectum 4 and be away from the clamping section 223, and therefore away from the position of the anus 3, which can also reduce the influence of the contraction of the anus 3 on the pressure detection of the rectum 4. Make the pressure detection process of the rectum 4 more accurate.

[0049] like Figure 4 , Figure 5 , Figure 6As shown, in addition, in the above structure, when the locking section 223 is provided, the specific shape of the locking section 223 can also be various. In addition to the conventional spherical and long cylindrical shapes mentioned above, other shapes can also be used. For example, the locking section 223 can be in an inverted bowl shape. The locking section 223 in the expanded state gradually moves away from the second conduit 210 in the direction from front to back, that is, the front end of the locking section 223 is arranged close to the second conduit 210, and the rear end gradually moves away from the second conduit 210. In this way, a support space 225 is formed between the rear end of the locking segment 223 and the second catheter 210. When the locking segment 223 abuts against the bottom wall of the anal canal, a circular contact is formed between the rear end of the locking segment 223 and the bottom wall of the anal canal. When the anus 3 contracts, the contracted part of the anus 3 is deformed toward the support space 225. Since the arched support space 225 accommodates this part of the deformation, the deformation of the anus 3 has a relatively small squeeze on the locking segment 223, thereby having a small effect on the internal pressure of the filling balloon 220, thereby ensuring that the pressure of the rectum 4 detected by the detection segment 221 is more accurate.

[0050] like Figure 7 As shown, in order to prevent the second catheter 210 from falling out of the anus 3, the rectal pressure detection component 200 can also adopt another structure. Therefore, another structure of the rectal pressure detection component 200 is specifically as follows: a second anti-falling airbag 240 is arranged on the second catheter 210, and the second anti-falling airbag 240 is arranged separately from the filling balloon 220; the second anti-falling airbag 240 is expanded by the gas filled into the second catheter 210, and the expanded second anti-falling airbag 240 is used to be stuck in the anal canal. The structure of the second anti-falling airbag 240 can refer to the first anti-falling airbag 140. It is inflated and expanded through a separate second inflation pipe in the second catheter 210. Since it is an independent structure separated from the filling balloon 220, even if the second anti-falling airbag 240 is squeezed by the anus 3, it will not affect the detection of the rectal 4 pressure by the filling airbag. However, this structure is relatively complex, and an additional air supply system is required. Its structure is more complex than the structure of the filling balloon 220 including the locking section 223 and the detection section 221 mentioned above.

[0051] like Figure 1 , Figure 8As shown, on the basis of the above structure, the urodynamic pressure measurement detection device also includes an external processor 300, in which an amplifier, an analog-to-digital converter, a processor, etc. can be set, and a display can also be set. The tail end (rear end) of the first catheter 110 is provided with a first wireless transmitter (not shown in the figure), and the first wireless transmitter is electrically connected to the first pressure sensor 120; the tail end (rear end) of the second catheter 210 is provided with a second wireless transmitter (not shown in the figure), and the second wireless transmitter is electrically connected to the second pressure sensor 230. The first pressure sensor 120 is used to wirelessly transmit the bladder 1 pressure to the external processor 300, and the second pressure sensor 230 is used to wirelessly transmit the rectum 4 pressure to the external processor 300. The external processor 300 calculates and obtains the urodynamic parameters through the bladder 1 pressure and the rectum 4 pressure. The use of wireless transmission can reduce the lines and make it more convenient for medical staff to use.

[0052] It is easy to imagine that the first pressure sensor 120 and the second pressure sensor 230 can also be directly connected to the external processor 300 through wires to achieve wired connection.

[0053] In summary, a urodynamic pressure measurement detection device of the present application can directly perform pressure detection in the bladder 1 through the first pressure sensor 120, generate a detection electrical signal, and the electrical signal can be directly converted into analog to digital to obtain a specific bladder 1 pressure value. The second pressure sensor 230 generates a detection electrical signal, and the electrical signal can be directly converted into analog to digital to obtain a specific rectal 4 pressure value. It is more convenient for medical staff to read urodynamic parameter information, and the first pressure sensor 120 and the second pressure sensor 230 both transmit information through electrical signals. Compared with the water column urodynamic detector, the structure is small in size, so it occupies less medical space, is more convenient to move, and is more conducive to medical use by medical staff.

[0054] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A urine dynamic pressure detection device, characterized in that: include: A bladder pressure detection component, the bladder pressure detection component comprising: a first catheter and a first pressure sensor, the first catheter being used to be inserted into a patient's bladder, the first catheter being provided with an irrigation hole, the irrigation hole being used to inject liquid into the patient's bladder to simulate a bladder filling state, the first pressure sensor being arranged at a front end of the first catheter and being used to detect bladder pressure in the bladder; and a rectal pressure detection member, the rectal pressure detection member comprising a second catheter, a filling balloon and a second pressure sensor, the second catheter being used to be inserted into the rectum of a patient, the filling balloon being arranged on the second catheter and being filled with a medium through an injection hole in the second catheter to expand and fill the rectum, the second pressure sensor being arranged on the second catheter and located in the filling balloon and being used to detect the rectal pressure in the rectum; The urodynamic parameters are calculated by using the bladder pressure and the rectal pressure.

2. A urodynamic pressure measuring device according to claim 1, characterized in that: The first catheter is also provided with a first anti-slip airbag, which is arranged at the rear side of the infusion hole. The first anti-slip airbag is expanded by the gas filled into the first catheter, and the expanded first anti-slip airbag is used to be stuck in the internal opening of the urethra.

3. The urodynamic pressure detection device according to claim 2, characterized in that: The front end of the first catheter can be bent to form a bendable adjustment section, and the first anti-slip airbag is located on the bendable adjustment section.

4. The urodynamic pressure measuring device according to claim 1, characterized in that: A hydrophilic material layer is arranged on the outer wall of the first conduit.

5. The urodynamic pressure measuring device according to claim 4, characterized in that: The hydrophilic material layer is a mixed material layer of polyvinyl pyrrolidone and lidocaine.

6. The urodynamic pressure measuring device according to claim 1, characterized in that: The filled balloon in the expanded state comprises: a positioning segment and a detection segment, wherein the volume of the positioning segment is smaller than the volume of the detection segment; The clamping section is used to clamp at the anal canal; The detection section is used to be filled in the rectum, and the second pressure sensor is located in the detection section.

7. The urodynamic pressure measuring device according to claim 6, characterized in that: The filled balloon in the expanded state further includes: an extension section, the extension section being arranged in communication between the clamping section and the detection section; Along the axial direction of the second conduit, the front-to-back length of the locking section and the front-to-back length of the detection section are both smaller than the extension length of the extension section.

8. The urodynamic pressure measuring device according to claim 7, characterized in that: The locking section in the expanded state gradually moves away from the second catheter in a direction from front to back.

9. The urodynamic pressure measuring device according to claim 1, characterized in that: The second catheter is provided with a second anti-detachment airbag, and the second anti-detachment airbag is spaced apart from the inflation balloon; The second anti-slip air bag is expanded by the gas filled into the second catheter, and the expanded second anti-slip air bag is used to be stuck in the anal canal.

10. The urodynamic pressure measuring device according to any one of claims 1 to 9, characterized in that: The urodynamic pressure measurement detection device also includes an external processor; A first wireless transmitter is disposed at the tail end of the first catheter, and the first wireless transmitter is electrically connected to the first pressure sensor; A second wireless transmitter is disposed at the tail end of the second catheter, and the second wireless transmitter is electrically connected to the second pressure sensor; The first pressure sensor is used to wirelessly transmit the bladder pressure to the external processor, and the second pressure sensor is used to wirelessly transmit the rectal pressure to the external processor. The external processor calculates and obtains the urodynamic parameters through the bladder pressure and the rectal pressure.

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