A urodynamic analyzer facilitating the switching of detection modes

Abstract

The present invention discloses a urodynamic analyzer facilitating detection mode switching, belonging to the technical field of medical devices. It includes a base, on the upper end of which a body is installed. A connecting member is installed on the side wall of the body, and a mode switching unit is installed on the connecting member. The mode switching unit includes a housing, in which a first pipe and a second pipe are arranged. The first pipe has a first docking end and a second docking end, and the second pipe has a third docking end, a fourth docking end and a fifth docking end. Among them, the first docking end is connected to a bladder pressure sensor, the third docking end is connected to the water outlet end of a perfusion pump, the fourth docking end is connected to a urethral pressure sensor, and the second docking end and the fifth docking end are respectively connected to two external connectors of a double-lumen tube. By providing a slidable closing plate, the present invention uses the closing plate to open and close the fourth docking end, while the first pipe and the second pipe always maintain a complete conduction state, thereby improving the tightness of the pipeline.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and relates to a urodynamic analyzer that is convenient for switching detection modes. Background Art

[0002] Based on the principle of fluid mechanics and using sensor technology, a urodynamic analyzer transmits the measured bladder pressure, abdominal pressure, urethral pressure, etc. to a pressure sensor through a catheter. It can accurately capture data such as the internal pressure of the bladder, abdominal pressure, and internal urethral pressure, such as the dynamic changes in pressure during bladder filling or urination. The pressure sensor converts the pressure signal into a weak electrical signal, which is amplified by an amplification channel and then converted into a digital signal by an analog-to-digital converter. Through a uroflowmeter, the flow rate and volume of urine during urination are measured based on principles such as gravity. Some are also equipped with electromyography sensors to detect the electromyographic activities of the urethral sphincter and pelvic floor muscles, comprehensively understand the status of urinary tract-related muscles, and then the computer collects, processes, displays, and prints the measured signals to provide key basis for doctors to formulate personalized treatment plans and guide decisions such as reasonable medication or surgical intervention.

[0003] Currently, when measuring bladder pressure and urethral pressure, different pipelines need to be connected separately, resulting in the need for staff to assemble different pipelines in different detection modes, which is time-consuming and laborious and prone to errors. The patent document with the publication number CN109009175B discloses a liquid path connection conversion device for a urodynamic analyzer. By dividing the housing into upper and lower parts and achieving pipeline switching by relatively rotating the upper and lower parts of the housing, the operation is simplified and the difficulty is reduced.

[0004] However, in the above solution, due to the simultaneous misalignment docking of multiple pipelines, it is difficult to ensure the tightness of the pipelines, and leakage is likely to occur, thus affecting the pressure detection results and reducing the detection accuracy.

[0005] Therefore, we propose a urodynamic analyzer that is convenient for switching detection modes to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to solve the problem that the analyzer in the prior art is prone to loose connection when switching detection modes, and to propose a urodynamic analyzer that is convenient for switching detection modes.

[0007] To achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A urodynamic analyzer that is convenient for switching detection modes, including a base, a body is installed at the upper end of the base, a connecting member is installed on the side wall of the body, and a mode switching unit is installed on the connecting member;

[0009] The mode switching unit includes a housing, in which a first pipe and a second pipe are arranged. The first pipe has a first docking end and a second docking end, and the second pipe has a third docking end, a fourth docking end and a fifth docking end;

[0010] Wherein, the first docking end is connected to the bladder pressure sensor, the third docking end is connected to the water outlet end of the perfusion pump, the fourth docking end is connected to the urethral pressure sensor, and the second docking end and the fifth docking end are respectively connected to two external connectors of the double lumen tube;

[0011] A cavity is provided in the housing, and a closing plate is slidably arranged in the cavity. The closing plate acts on the fourth docking end. When the body is performing bladder pressure detection, the closing plate closes the fourth docking end. When the body is performing urethral pressure detection, the closing plate opens the fourth docking end.

[0012] Preferably, a docking port is provided on the closing plate. The closing plate can slide to a first position or a second position in the cavity. When the closing plate is in the first position, the docking port is aligned with the fourth docking end to make the fourth docking end in an open state. When the closing plate is in the second position, the docking port is misaligned with the fourth docking end to make the fourth docking end in a closed state.

[0013] Preferably, an annular wall with a larger upper part and a smaller lower part is provided at the upper end of the docking port. A closing groove is provided at the lower end of the closing plate. The closing groove is strip-shaped. One end of the closing groove communicates with the lower part of the docking port. A guiding wall is obliquely arranged in the middle of the upper side wall of the closing groove. One end of the guiding wall close to the docking port is higher than the end far from the docking port. An abutting wall is provided at the end of the closing groove far from the docking port. The abutting wall is connected to the guiding wall;

[0014] When the closing plate is in the second position, the upper end of the fourth docking end is in airtight contact with the lower side wall of the abutting wall. When the closing plate is in the first position, the upper end of the fourth docking end is located in the docking port.

[0015] Preferably, it further includes a mounting frame. The housing is fixedly connected to the side wall of the connecting piece through the mounting frame. A telescopic cylinder is fixedly installed on the mounting frame. The output end of the telescopic cylinder is fixedly connected to a clamping plate. A clamping groove is provided at the front end of the clamping plate. The clamping groove is used for clamping the intubation tube of the urethral pressure sensor. When the telescopic cylinder is started, it can drive the intubation tube to move up and down through the clamping groove to insert or pull out the intubation tube from the fourth docking end.

[0016] Preferably, a sleeve is fixedly inserted in the housing. The lower end of the sleeve is arranged opposite to the fourth docking end. The closing plate is slidably arranged between the sleeve and the fourth docking end. When the closing plate moves, it can make the sleeve and the fourth docking end communicate or be separated.

[0017] Preferably, a driving bar is fixedly connected to the lower end of the clamping plate. A driving groove is formed in the driving bar. A driving column is fixedly connected to the side wall of the closing plate. The driving column is slidably connected in the driving groove. When the clamping plate drives the driving bar to move up and down, the driving groove acts on the driving column to drive the closing plate to move back and forth.

[0018] Preferably, there are two driving bars, and the two driving bars are respectively arranged on both sides of the clamping plate. There are also two groups of driving columns. The two groups of driving columns are respectively slidably arranged in the driving grooves on the two driving bars.

[0019] Preferably, the driving groove includes a first strip-shaped groove, a second strip-shaped groove, and a third strip-shaped groove. Among them, the first strip-shaped groove and the third strip-shaped groove are both vertically arranged. The first strip-shaped groove is arranged away from the housing, and the third strip-shaped groove is arranged close to the housing. The second strip-shaped groove is inclined to connect the first strip-shaped groove and the second strip-shaped groove;

[0020] When the driving column is located in the first strip-shaped groove, the closing plate opens the fourth docking end. When the driving column is located in the third strip-shaped groove, the closing plate closes the fourth docking end.

[0021] Preferably, the length of the first strip-shaped groove is equal to the insertion depth of the cannula.

[0022] Preferably, the lower end of the third strip-shaped groove is open. When the clamping plate continuously moves upward, the driving column is separated from the third strip-shaped groove.

[0023] In summary, the technical effects and advantages of the present invention: The urodynamic analyzer that is convenient to switch the detection mode realizes the opening and closing of the fourth docking end by setting a slidable closing plate, and the first pipeline and the second pipeline always maintain a complete conduction state, thereby improving the tightness of the pipeline. And by setting the telescopic cylinder, automatic insertion and extraction of the pipeline can be realized, reducing manual participation, further reducing the operation difficulty and improving the efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 is a schematic diagram of the connection relationship between the housing and the mounting bracket in the present invention;

[0026] Figure 3 In the present invention Figure 2 is a schematic side view;

[0027] Figure 4Schematic cross-sectional structure diagram of the first pipeline and the second pipeline in the present invention;

[0028] Figure 5 Schematic diagram of the positional relationship between the first pipeline and the second pipeline in the present invention;

[0029] Figure 6 Schematic structure diagram of the first pipeline and the second pipeline in the present invention;

[0030] Figure 7 Schematic structure diagram of the closing plate in the present invention;

[0031] Figure 8 Schematic cross-sectional structure diagram of the closing plate in the present invention;

[0032] Figure 9 Schematic diagram of the usage state of the closing plate and the clamping plate in the present invention.

[0033] In the figure: 1, body; 2, mode switching unit; 3, housing; 4, cannula; 5, closing plate;

[0034] 11, base; 12, connecting member; 21, mounting bracket; 22, telescopic cylinder; 23, clamping plate; 24, driving strip; 31, first pipeline; 32, second pipeline; 33, cavity; 34, sleeve; 41, limiting ring; 51, docking port; 52, driving column; 53, closing groove;

[0035] 231, clamping groove; 241, first strip-shaped groove; 242, second strip-shaped groove; 243, third strip-shaped groove;

[0036] 311, first docking end; 312, second docking end; 321, third docking end; 322, fourth docking end; 323, fifth docking end; 341, insertion end; 511, annular wall; 531, abutting wall; 532, guiding wall. Detailed implementation manners

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0038] In a solution of a liquid path connection conversion device of a urodynamic analyzer disclosed in a patent document with the publication number CN109009175B, in this solution, when the lower cover rotates, the two docking ports of the double-chamber connection channel move along the rotation trajectory of the lower cover. Only when the lower cover rotates 180 degrees can the two docking ports be reconnected to the bladder pressure channel and the perfusion socket. When there is a deviation, the upper socket and the lower socket will be in a misaligned state, resulting in liquid leakage. And since each connection channel is connected based on the rotation of the lower cover, it will cause leakage in all connection channels at the same time, adding up the overall leakage volume and greatly affecting the accuracy of the pressure value. To solve the above problems, the following solution is proposed:

[0039] As Figures 1-9 shown, a urodynamic analyzer facilitating the switching of detection modes includes a base 11. A body 1 is installed at the upper end of the base 11. A connector 12 is installed on the side wall of the body 1. The connector 12 can slide up and down on the body 1 to adjust its position. The connector 12 itself consists of two relatively rotatable parts, so that the connector 12 can also rotate, thereby enabling the connector 12 to have greater freedom of movement. A mode switching unit 2 is installed on the connector 12. The mode switching unit 2 can switch back and forth between the bladder detection mode and the urethra detection mode.

[0040] The mode switching unit 2 includes a housing 3. A first pipe 31 and a second pipe 32 are arranged in the housing 3. The first pipe 31 has a first docking end 311 and a second docking end 312. The second pipe 32 has a third docking end 321, a fourth docking end 322, and a fifth docking end 323.

[0041] In this embodiment, the first pipe 31 is a straight pipe, while the second pipe 32 is a three-way pipe.

[0042] Among them, the first docking end 311 is connected to the bladder pressure sensor, the third docking end 321 is connected to the water outlet end of the perfusion pump, the fourth docking end 322 is connected to the urethra pressure sensor, and the second docking end 312 and the fifth docking end 323 are respectively connected to the two external connectors of the double-chamber tube.

[0043] The housing 3 has a cavity 33 inside. A closing plate 5 is slidably arranged in the cavity 33. Limit openings are provided at both the front and rear ends of the cavity 33. Both ends of the closing plate 5 are slidably arranged in the limit openings. The closing plate 5 slides horizontally back and forth in the cavity 33, and the length of the closing plate 5 is greater than the distance between the two limit openings, so that a part of the closing plate 5 is always located outside the housing 3. Among them, the closing plate 5 acts on the fourth docking end 322. Specifically, the closing plate 5 always slides above the fourth docking end 322. When the body 1 is performing bladder pressure detection, the closing plate 5 closes the fourth docking end 322. When the body 1 is performing urethral pressure detection, the closing plate 5 opens the fourth docking end 322.

[0044] Compared with the existing analyzer, in this embodiment, since the first pipe 31 is a straight pipe and the second pipe 32 is a tee pipe, during use, the first docking end 311 and the second docking end 312 of the first pipe 31 are always connected together, and the third docking end 321, the fourth docking end, and the fifth docking end 323 of the second pipe 32 are also always connected together. In different modes, the first docking end 311 is always connected to the bladder pressure sensor, the second docking end 312 and the fifth docking end 323 are always connected to the two external connectors of the double lumen tube, and the third docking end 321 is always connected to the water outlet end of the perfusion pump. In different modes, only the opening and closing of the fourth docking end 322 need to be controlled to achieve mode switching.

[0045] By setting like this, when switching modes, it is not necessary to consider the docking of multiple pipes at the same time, thus greatly improving the airtightness of each pipe. At the same time, since the relative positions of the housing 3, the first pipe 31, and the second pipe 32 remain unchanged, the positions of the respective connecting pipes connected to the housing 3 also remain unchanged. Therefore, when switching modes, the connecting pipes will not be entangled with each other, which is beneficial for the staff to quickly clarify the connection situation of the pipes.

[0046] To achieve the opening and closing of the fourth docking end 322, a docking port 51 is provided on the closing plate 5. The closing plate 5 can slide to the first position or the second position in the cavity 33. The first position is that the closing plate 5 is located at the rightmost end, and the second position is that the closing plate 5 is located at the leftmost end. When the closing plate 5 is located at the first position, the docking port 51 is aligned with the fourth docking end 322, making the fourth docking end 322 in an open state. When the closing plate 5 is in the second position, the docking port 51 is misaligned with the fourth docking end 322, making the fourth docking end 322 in a closed state. That is to say, in this embodiment, the opening and closing control of the fourth docking end 322 is achieved by adjusting the position of the closing plate 5 to control the coincidence or misalignment of the docking port 51 and the fourth docking end 322. This control method does not require a large adjustment of the housing 3, and only the position of the closing plate 5 needs to be adjusted, which is simple and convenient to operate.

[0047] To facilitate the insertion of the pipeline and allow for a certain tolerance in the docking process, the upper end of the docking interface 51 is provided with an annular wall 511 that is wider at the top and narrower at the bottom. When the pipeline is inserted downward, it is easier to fall within the range of the annular wall. As the pipeline continues to move downward, under the action of the inclined side wall of the annular wall 511, the pipeline can smoothly enter the docking interface 51, thus achieving a quick connection between the pipeline and the docking interface 51.

[0048] To enable stable sliding between the closing plate 5 and the second pipeline 32, the lower end of the closing plate 5 is provided with a closing groove 53. The closing groove 53 is elongated, and one end of the closing groove 53 communicates with the lower part of the docking interface 51. When the closing plate 5 slides back and forth, the fourth docking end 322 of the second pipeline 32 always slides within the closing groove 53, preventing relative displacement between the closing plate 5 and the fourth docking end 322.

[0049] The middle part of the upper side wall of the closing groove 53 has an inclined guiding wall 532. One end of the guiding wall 532 close to the docking interface 51 is higher than the end far from the docking interface 51. The end of the closing groove 53 far from the docking interface 51 has an abutting wall 531, and the abutting wall 531 is connected to the guiding wall 532. That is to say, as the closing plate 5 slides, the distance from the upper end of the fourth docking end 322 to the upper side wall of the closing groove 53 is not constant but changes.

[0050] When the closing plate 5 is in the second position, the upper end of the fourth docking end 322 is in airtight contact with the lower side wall of the abutting wall 531 to ensure the sealing of the fourth docking end 322. As the closing plate 5 moves, when the fourth docking end 322 moves to the position of the guiding wall 532, the fourth docking end 322 will gradually move away from the upper side wall of the closing groove 53 as the closing plate 5 moves, thereby reducing the frictional resistance generated between the closing plate 5 and the fourth docking end 322 during movement. When the closing plate 5 is in the first position, the upper end of the fourth docking end 322 is located within the docking interface 51.

[0051] Through the setting of the above mechanism, in this embodiment, on the basis of ensuring the airtightness between the closing plate 5 and the fourth docking end 322, the frictional resistance during movement can be reduced, making the switching between the two modes easier and the airtight effect better.

[0052] Furthermore, this embodiment further includes a mounting bracket 21. The housing 3 is fixedly connected to the side wall of the connecting member 12 through the mounting bracket 21. A telescopic cylinder 22 is fixedly installed on the mounting bracket 21. The driving direction of the telescopic cylinder 22 is along the vertical direction. Specifically, the telescopic cylinder 22 can be an electric cylinder, a hydraulic cylinder or a pneumatic cylinder. A clamping plate 23 is fixedly connected to the output end of the telescopic cylinder 22. A clamping groove 231 is provided at the front end of the clamping plate 23. The clamping groove 231 is used to clamp the intubation tube 4 of the urethral pressure sensor. The clamping groove 231 is specifically a semi-circular structure and can be made of an elastic plastic material, so that the end of the clamping groove 231 can be deformed to facilitate fixing or removing the intubation tube 4 from the clamping groove 231. Furthermore, a matching limit ring 41 is fixedly connected to the intubation tube 4. The limit ring 41 can cooperate with the clamping groove 231 to realize the limit fixation of the intubation tube 4, so as to drive the intubation tube 4 to move up and down through the clamping plate 23 and realize the automatic insertion and extraction of the intubation tube 4.

[0053] Specifically, when the telescopic cylinder 22 is started, it can drive the intubation tube 4 to move up and down through the clamping groove 231, so that the intubation tube 4 is inserted into or pulled out of the fourth docking end 322.

[0054] A sleeve 34 is fixedly inserted into the housing 3. The upper end of the sleeve 34 is an insertion end 341. The lower end of the sleeve 34 is arranged opposite to the fourth docking end 322. The closing plate 5 is slidably arranged between the sleeve 34 and the fourth docking end 322. When the closing plate 5 moves, it can conduct or separate the sleeve 34 and the fourth docking end 322. The function of the sleeve 34 is to play a guiding role, so that the intubation tube 4 is inserted downward along the sleeve 34.

[0055] In this embodiment, a driving strip 24 is fixedly connected to the lower end of the clamping plate 23. The driving strip 24 is arranged vertically. A driving groove is formed in the driving strip 24. The driving groove is arranged along the length direction of the driving strip 24, that is, along the vertical direction, and the distances from the starting point and the ending point of the driving groove to the housing 3 are different. In one embodiment, the driving groove is inclined, so that there is a displacement difference between the starting point and the ending point of the driving groove in the horizontal direction. A driving column 52 is fixedly connected to the side wall of the closing plate 5. The driving column 52 is slidably connected in the driving groove. When the clamping plate 23 drives the driving strip 24 to move up and down, the driving groove acts on the driving column 52 to drive the closing plate 5 to move back and forth. That is: when the driving strip 24 moves up and down, through the interaction between the driving column 52 and the driving groove, the horizontal movement of the closing plate 5 is realized.

[0056] To improve the stability, the number of the driving strips 24 is two, and the two driving strips 24 are respectively arranged on both sides of the clamping plate 23. The number of the driving columns 52 is also two groups. The two groups of driving columns 52 are respectively slidably arranged in the driving grooves on the two driving strips 24, so that both sides of the closing plate 5 are stressed simultaneously, avoiding the inclination of the closing plate 5 caused by uneven stress.

[0057] It should be further noted that, in this embodiment, the driving groove includes a first strip-shaped groove 241, a second strip-shaped groove 242, and a third strip-shaped groove 243. Among them, both the first strip-shaped groove 241 and the third strip-shaped groove 243 are vertically arranged. The first strip-shaped groove 241 is arranged away from the housing 3, and the third strip-shaped groove 243 is arranged close to the housing 3. The second strip-shaped groove 242 is inclined and used to communicate the first strip-shaped groove 241 and the second strip-shaped groove 242.

[0058] When the driving column 52 is located in the first strip-shaped groove 241, the closing plate 5 is in the rightmost position, and the closing plate 5 opens the fourth docking end 322. When the driving column 52 is located in the third strip-shaped groove 243, the closing plate 5 is in the leftmost position, and the closing plate 5 closes the fourth docking end 322.

[0059] As a further optimization, the length of the first strip-shaped groove 241 is equal to the insertion depth of the intubation tube 4. That is to say, when the intubation tube 4 is completely inserted into the fourth docking end 322, the driving column 52 moves to the uppermost end of the first strip-shaped groove 241. On the one hand, the first strip-shaped groove 241 can limit the horizontal direction of the driving column 52, avoiding the closing plate 5 from continuing to slide along the horizontal direction, thereby ensuring that the docking interface 51 can be aligned and conducted with the fourth docking end 322. On the other hand, the driving column 52 can limit the vertical direction of the first strip-shaped groove 241, avoiding the intubation tube 4 from continuing to move along the vertical direction, and ensuring that the intubation tube 4 and the fourth docking end 322 can be closely docked.

[0060] Through the cooperation among the driving groove, the clamping plate 23, the intubation tube 4, and the closing plate 5, double limiting can be formed to ensure the depth locking of the intubation tube 4 and the fourth docking end 322, thereby improving the tightness of the connection between pipelines.

[0061] As a further optimization, the lower end of the third strip-shaped groove 243 is open. Under normal working conditions, when the telescopic cylinder 22 controls the driving strip 24 to move upward, the driving column 52 will not break away from the third strip-shaped groove 243, so as to realize the limit of the driving column 52 through the third strip-shaped groove 243. When disassembly and maintenance are required, the telescopic cylinder 22 is controlled to continuously move the clamping plate 23 upward until the driving column 52 is separated from the third strip-shaped groove 243.

[0062] The working principle is as follows:

[0063] In the initial state, the telescopic cylinder 22 is in a shortened state, the driving column 52 is located in the third strip-shaped groove 243, and the docking interface 51 on the closing plate 5 is misaligned with the fourth docking end 322, making the fourth docking end 322 in a closed state.

[0064] When performing bladder pressure detection, water flows out from the water outlet end of the perfusion pump. The water sequentially enters the double-chamber pressure measuring tube through the third docking end 321 and the fifth docking end 323. Subsequently, the bladder pressure information sequentially enters the second docking end 312 and the first docking end 311 through the double-chamber pressure measuring tube and is transmitted to the bladder pressure sensor. The bladder pressure sensor transmits the measured information to the body 1 to achieve pressure detection.

[0065] When performing urethral pressure detection, it is necessary to control the telescopic cylinder 22 to extend downward. When the telescopic cylinder 22 extends downward, it will drive the clamping plate 23 to move downward. On the one hand, the clamping plate 23 drives the driving strip 24 to move downward, so that the driving groove acts on the driving column 52, thereby pushing the closing plate 5 backward to align the docking port 51 with the fourth docking end 322 and keep the fourth docking end 322 in an open state. On the other hand, the clamping plate 23 will drive the intubation tube 4 to move downward. After the intubation tube 4 passes through the sleeve 34, it is inserted into the fourth docking end 322 in the open state, so that the fourth docking end 322 is docked with the urethral pressure sensor.

[0066] It should be noted that when the fourth docking end 322 is in an open state, there is still a sliding space above the first strip-shaped groove 241 at this time, so that the intubation tube 4 can continue to move downward to avoid interference.

[0067] After the water flows out from the water outlet end of the perfusion pump, on the one hand, the water will transmit the pressure information to the bladder pressure sensor through the double-chamber pressure measuring tube and the first pipeline 31. On the other hand, the water will transmit the pressure information to the urethral pressure sensor through the second pipeline 32 to achieve the detection of urethral pressure.

[0068] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A urodynamic analyzer that facilitates switching of detection modes, comprising a base (11), a body (1) being mounted on the upper end of the base (11), and a connecting member (12) being mounted on the side wall of the body (1), characterized in that: A mode switching unit (2) is mounted on the connecting member (12); The mode switching unit (2) comprises a housing (3), wherein a first pipe (31) and a second pipe (32) are arranged in the housing (3), wherein the first pipe (31) has a first butt joint end (311) and a second butt joint end (312), and the second pipe (32) has a third butt joint end (321), a fourth butt joint end (322) and a fifth butt joint end (323); The first docking end (311) is connected to a bladder pressure sensor, the third docking end (321) is connected to a water outlet end of an infusion pump, the fourth docking end (322) is connected to a urethra pressure sensor, and the second docking end (312) and the fifth docking end (323) are respectively connected to two external connectors of the double-lumen tube; The housing (3) has a cavity (33) in it, and a closing plate (5) is slidably arranged in the cavity (33). The closing plate (5) acts on the fourth docking end (322). When the machine body (1) is performing a bladder pressure test, the closing plate (5) closes the fourth docking end (322). When the machine body (1) is performing a urethral pressure test, the closing plate (5) opens the fourth docking end (322). The closing plate (5) is provided with a docking port (51), and the closing plate (5) can slide to a first position or a second position in the cavity (33); when the closing plate (5) is in the first position, the docking port (51) is aligned with the fourth docking end (322), so that the fourth docking end (322) is in an open state; when the closing plate (5) is in the second position, the docking port (51) is misaligned with the fourth docking end (322), so that the fourth docking end (322) is in a closed state; The housing (3) is fixedly connected to the side wall of the connecting member (12) via the mounting frame (21); a telescopic cylinder (22) is fixedly mounted on the mounting frame (21); an output end of the telescopic cylinder (22) is fixedly connected to a clamping plate (23); a front end of the clamping plate (23) is provided with a clamping groove (231); the clamping groove (231) is used to clamp the cannula (4) of the urethral pressure sensor; when the telescopic cylinder (22) is started, the cannula (4) can be driven to move up and down via the clamping groove (231), so that the cannula (4) is inserted into or pulled out of the fourth docking end (322).

2. A urodynamic analyzer that is convenient for switching detection modes according to claim 1, characterized in that: The upper end of the docking port (51) is provided with an annular wall (511) which is larger at the top and smaller at the bottom; the lower end of the closing plate (5) is provided with a closing groove (53); the closing groove (53) is in an elongated strip shape; one end of the closing groove (53) is in communication with the lower part of the docking port (51); the middle part of the upper side wall of the closing groove (53) is provided with an inclined guide wall (532); the end of the guide wall (532) close to the docking port (51) is higher than the end away from the docking port (51); the end of the closing groove (53) away from the docking port (51) is provided with an abutting wall (531); the abutting wall (531) is connected to the guide wall (532); When the closing plate (5) is in the second position, the upper end of the fourth butt joint end (322) is in airtight contact with the lower side wall of the abutment wall (531); when the closing plate (5) is in the first position, the upper end of the fourth butt joint end (322) is located in the butt joint port (51).

3. A urodynamic analyzer that is convenient for switching detection modes according to claim 1, characterized in that: A sleeve (34) is fixedly inserted in the shell (3), the lower end of the sleeve (34) is arranged opposite to the fourth docking end (322), and the closing plate (5) is slidably arranged between the sleeve (34) and the fourth docking end (322). When the closing plate (5) moves, the sleeve (34) and the fourth docking end (322) can be connected or separated.

4. A urodynamic analyzer that is convenient for switching detection modes according to claim 1, characterized in that: The lower end of the clamping plate (23) is fixedly connected to a driving bar (24), and a driving groove is formed on the driving bar (24). A driving column (52) is fixedly connected to the side wall of the closing plate (5), and the driving column (52) is slidably connected in the driving groove. When the clamping plate (23) drives the driving bar (24) to move up and down, the driving groove acts on the driving column (52) to drive the closing plate (5) to move back and forth.

5. A urodynamic analyzer that is convenient for switching detection modes according to claim 4, characterized in that: There are two drive bars (24), and the two drive bars (24) are respectively arranged on both sides of the clamping plate (23). There are also two groups of drive columns (52), and the two groups of drive columns (52) are respectively slidably arranged in the drive grooves on the two drive bars (24).

6. A urodynamic analyzer for convenient switching of detection modes according to claim 4, characterized in that: The driving groove comprises a first strip groove (241), a second strip groove (242) and a third strip groove (243), wherein the first strip groove (241) and the third strip groove (243) are both arranged vertically, and the first strip groove (241) is arranged away from the shell (3), the third strip groove (243) is arranged close to the shell (3), and the second strip groove (242) is arranged obliquely for connecting the first strip groove (241) and the second strip groove (242); When the driving column (52) is located in the first strip groove (241), the closing plate (5) causes the fourth butt joint end (322) to be opened, and when the driving column (52) is located in the third strip groove (243), the closing plate (5) causes the fourth butt joint end (322) to be closed.

7. A urodynamic analyzer for convenient switching of detection modes according to claim 6, characterized in that: The length of the first strip-shaped groove (241) is equal to the insertion depth of the cannula (4).

8. A urodynamic analyzer for convenient switching of detection modes according to claim 6, characterized in that: The lower end of the third strip groove (243) is open, and when the clamping plate (23) continues to move upward, the driving column (52) is separated from the third strip groove (243).

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