Portable anal manometer

Abstract

This invention belongs to the field of medical devices, specifically relating to a portable anal manometry device. It includes a display and a detection body. The detection body comprises an elastic outer shell and an internal rod. The internal rod consists of a hollow column with a base coaxially mounted on it. Three fixed rods are arranged in an array on the base. A first slider is slidably connected to each fixed rod. A second slider is engaged with the upper surface of the first slider via helical teeth. The second slider has a guide rod, the end of which is fixed to the hollow column. An arc-shaped plate is fixed to the end of the second slider away from the hollow column, and several pressure sensors are embedded in the outer wall of the arc-shaped plate. The internal rod has a drive mechanism, and a motor is located inside the handle. The motor drives the first slider to move via the drive mechanism. The internal rod also includes a communication module for transmitting pressure information from the pressure sensors to the display. This invention is simple to use, improves the accuracy of anal contraction detection, and has an adjustable diameter to accommodate different patients.

Description

Technical Field

[0001] This invention belongs to the field of medical testing instruments, specifically relating to a portable anal manometer. Background Technology

[0002] In the diagnosis and treatment of patients in the shock phase of spinal cord injury, the disappearance of the shock phase is often determined by measuring the anal reflex. Currently, clinically, the presence or absence of anal contraction felt by the fingers is used as an indicator. However, due to differences in finger sensation, this not only makes the diagnosis less objective, but also makes it difficult to detect even slight contractions, leading to unreliable results and affecting patient diagnosis and treatment. Some patients may have only very weak residual contractions, which inexperienced clinicians often overlook, leading to misdiagnosis. Furthermore, simple digital rectal examination is not conducive to a direct comparison of anal contraction strength. Summary of the Invention

[0003] This invention provides a portable anal manometer to solve the problems of large error rate in digital rectal examination and lack of intuitive visualization of anal contraction force in the prior art.

[0004] The basic solution of this invention is as follows: a portable anal manometer, including a display and a detection body. The detection body includes an elastic shell and a built-in rod. One end of the built-in rod is provided with a handle for a doctor to hold. The built-in rod includes a hollow column, and multiple base plates are coaxially arranged on the hollow column. Three fixing rods are arranged in an array on the base plates. A first slider is slidably connected to the fixing rod. The upper end face of the first slider is provided with helical teeth. A second slider is engaged above the first slider. The end of the second slider near the hollow column has a hole along its axial direction. A guide rod is slidably connected to the second slider through the hole. The end of the second slider away from the hollow column is fixedly connected to the hollow column. The end of the second slider away from the hollow column is fixedly connected to an arc-shaped plate. Several pressure sensors are embedded in the outer wall of the arc-shaped plate. The elastic shell covers the inner rod and has several openings for the arc-shaped plate to be embedded. The arc-shaped plate is fixedly bonded to the elastic shell at the opening. The inner rod is provided with a drive mechanism. The handle is provided with a motor. The motor is used to drive the first slider to move through the drive mechanism. The inner rod also includes a communication module. The communication module is used to send the pressure information sensed by the pressure sensors to the display for display.

[0005] The basic principle of this solution is as follows: First, the user adjusts the diameter of the internal rod based on treatment experience. The internal rod of the pressure sensor is inserted into the patient's anus. Then, based on the patient's response, the diameter of the internal rod is fine-tuned. The adjustment method is as follows: The motor is started, and the motor drives the first slider to move through the drive structure. Since the first and second sliders are connected by helical gears, the first slider can drive the second slider to move along the guide rod. Moving it outward increases the diameter of the internal rod, while moving it inward decreases the diameter. When the internal rod is placed inside the patient's anus, due to the contraction of the anus and rectum, the pressure sensor fits tightly against it, testing the degree of anal contraction and rectal peristalsis. The pressure information sensed by the pressure sensor is sent to the display via the communication module for user analysis.

[0006] The beneficial effects of the basic scheme are:

[0007] (1) This pressure measuring device can measure the size of anal pressure through pressure sensor to determine the anal contraction force and make a direct comparison of anal contraction force. Compared with the existing artificial digital rectal examination, it has high accuracy. Especially for patients with only slight anal contraction, it is often difficult to detect by digital examination. This pressure measuring device avoids this situation and makes the patient's diagnosis more reliable.

[0008] (2) The built-in rod of this pressure measuring device is equipped with several base plates and several arc plates, which are equipped with multiple pressure sensors to improve the accuracy of anal pressure measurement. At the same time, the built-in rod can also penetrate into the hepatic rectum to measure the peristalsis of the rectum near the anus. Compared with the existing rectal anal pressure measuring devices that use a water balloon implanted in the rectum and connected to an external tube to determine the pressure by the height of the water column, which takes more than 2 hours to test one patient, this pressure measuring device is simple to use and easy to operate.

[0009] (3) The diameter of the built-in rod of this pressure measuring instrument is adjustable to accommodate different patients, which improves the comfort of diagnosis and treatment.

[0010] Furthermore, the driving mechanism includes a drive shaft located inside the hollow column and coaxially arranged, and several rotating shafts passing through the side wall of the hollow column. The two ends of the rotating shafts are respectively fixedly connected to a first bevel gear and a second bevel gear. The hollow column above the chassis is rotatably connected to a drive gear that meshes with the surrounding first sliders. The drive gear includes a spur gear and a third bevel gear fixed to the upper side of the spur gear. The drive shaft is provided with a fourth bevel gear corresponding to the drive gear at intervals. The fourth bevel gear meshes with the first bevel gear, and the third bevel gear meshes with the second bevel gear.

[0011] With the above configuration, the drive mechanism is driven by a series of mechanical transmissions, resulting in good transmission performance and stable durability.

[0012] Furthermore, the communication module and the display are connected via Bluetooth.

[0013] The above settings avoid the transmission line from interfering with diagnostics, allowing users to move freely without being limited by the length of the transmission line.

[0014] Furthermore, the built-in rod also includes a data processing module, which is used to comprehensively process the pressure information sensed by the pressure sensor.

[0015] With the above settings, the data processing module integrates the pressure information sensed by numerous pressure sensors on the outer shell, and then averages this information according to preset weights to obtain the overall pressure of the anal area on the pressure measuring instrument. The data is then displayed on the screen for the user to perform data analysis, adjust the position of the detection body, and change the size of the built-in rod.

[0016] Furthermore, the outer diameter of the built-in rod is set to gradually decrease from the end near the handle to the end away from the handle.

[0017] The above setup facilitates the insertion of the internal rod into the anus.

[0018] Furthermore, the elastic outer shell is made of silicone.

[0019] With the above settings, the silicone shell has a moderate softness and hardness, providing good comfort; its low breathability effectively protects the internal rod.

[0020] Furthermore, the silicone shell has anti-slip texture, and the outer wall of the silicone shell is wrapped with a safety condom.

[0021] The above settings prevent the anal sphincter from being squeezed out during measurement due to anal contraction. The condom is disposable, allowing the sphincter to be used by multiple people, avoiding the need for cleaning and disinfection after each measurement, and improving the department's diagnostic efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of an embodiment of the portable anal manometer of the present invention;

[0023] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0024] Figure 3 This is a cross-sectional view of an embodiment of the portable anal manometer of the present invention. Detailed Implementation

[0025] The following detailed explanation illustrates the specific implementation methods:

[0026] The reference numerals in the accompanying drawings include: built-in rod 1, handle 2, hollow column 3, chassis 4, fixing rod 5, first slider 6, second slider 7, guide rod 8, arc plate 9, elastic shell 10, anti-slip texture 11, drive shaft 12, first bevel gear 13, second bevel gear 14, drive gear 15, spur gear 151, third bevel gear 152, fourth bevel gear 16, motor 17, data processing module 18, and communication module 19.

[0027] The implementation examples are basically as follows Figure 1 , Figure 2 and Figure 3 As shown:

[0028] A portable anal manometry device includes a display and a probe body. The probe body includes a flexible outer shell 10 and an internal rod 1. The outer diameter of the internal rod 1 gradually decreases from the end near the handle 2 to the end away from the handle 2. The lower end of the internal rod 1 has a handle 2 for the doctor to hold, and the tail end of the handle 2 has a pull ring for easy use. The internal rod 1 includes a hollow column 3, and multiple base plates 4 are coaxially fixed to the hollow column 3. Three fixing rods 5 are arranged in an array on the base plates 4. A first slider 6 is slidably connected to the fixing rod 5. The upper end face of the first slider 6 has helical teeth. A second slider 7 is engaged above the first slider 6. The end of the second slider 7 near the hollow column 3 has a hole along its axial direction. 7. A guide rod 8 is slidably connected through a hole. The end of the guide rod 8 away from the second slider 7 is fixedly connected to the hollow column 3. An arc plate 9 is fixedly connected to the end of the second slider 7 away from the hollow column 3. Several pressure sensors are embedded in the outer wall of the arc plate 9. The pressure sensors are diaphragm pressure sensors. An elastic shell 10 covers the inner rod 1. The elastic shell 10 has several openings for the arc plate 9 to be embedded. The arc plate 9 is fixedly bonded to the elastic shell 10 at the opening. The elastic shell 10 is made of silicone. The silicone shell has anti-slip texture 11. A safety sleeve is wrapped around the outer wall of the silicone shell. A ring of protrusion is provided at the connection between the inner rod 1 and the handle 2 for the safety sleeve to be fitted to prevent it from shrinking and slipping off.

[0029] The built-in rod 1 is equipped with a drive mechanism, which includes a drive shaft 12 located inside the hollow column 3 and coaxially arranged, and several rotating shafts passing through the side wall of the hollow column 3. The two ends of the rotating shafts are respectively fixedly connected to a first bevel gear 13 and a second bevel gear 14. The hollow column 3 above each chassis 4 is rotatably connected to a drive gear 15 that meshes with the surrounding first sliders 6 through a rotating bearing. The drive gear 15 includes a spur gear 151 and a third bevel gear 152 fixedly connected to the upper side of the spur gear 151. The drive shaft 12 is coaxially fixedly connected to a fourth bevel gear 16 corresponding to the drive gear 15. The fourth bevel gear 16 meshes with the first bevel gear 13, and the third bevel gear 152 meshes with the second bevel gear 14.

[0030] The handle 2 houses a motor 17, whose output shaft is coaxially fixed to the drive shaft 12 to drive the drive shaft 12 to rotate. The motor 17 is electrically connected to a battery and a switch. The switch is located on the surface of the handle 2, and the battery is located inside the handle 2. The handle 2, which houses the built-in rod 1, also houses a communication module 19 and a data processing module 18. The data processing module 18 uses an STM32 microcontroller and is connected to each pressure sensor via a data cable. It averages this information according to a preset weight to obtain the overall pressure of the anal area on the pressure gauge. Then, the data processing module 18 transmits the pressure information to the display via Bluetooth through the electrically connected communication module 19.

[0031] The specific working process is as follows: First, the user adjusts the diameter of the internal rod 1 based on long-term treatment experience. Then, the internal rod 1 of the pressure measuring instrument is inserted into the patient's anus. Based on the patient's reaction, the diameter of the internal rod 1 is finely adjusted to avoid patient discomfort. The adjustment method is as follows: Start the motor 17. The motor 17 drives the drive shaft 12 to rotate. The fourth bevel gear 16 on the drive shaft 12 drives the first bevel gear 13 to rotate. The first bevel gear 13 drives the third bevel gear 152 to rotate through the second bevel gear 14. This causes the spur gear 151, which is fixed to the third bevel gear 152, to rotate. The spur gear 151 drives the surrounding first slider 6 to move along the fixed rod 5. Since the first slider 6 and the second slider 7 are meshed through helical gears, the first slider 6 can drive the second slider 7 to move along the guide rod 8. Moving outwards increases the diameter of the internal rod 1, and moving inwards decreases the diameter of the internal rod 1. When the built-in rod 1 is placed inside the patient's anus, due to the contraction of the anus and rectum, the pressure sensor fits tightly against it, testing the degree of anal contraction and rectal peristalsis. The pressure information is transmitted to the data processing module 18 via a data cable. After processing the pressure information, the data processing module 18 sends the pressure information to the display via Bluetooth through the communication module 19 for user analysis.

[0032] The above descriptions are merely embodiments of the present invention. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, under the guidance of this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of the present invention. These should also be considered within the scope of protection of the present invention, and will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A portable anal manometer, comprising a display and a probe body, characterized in that, The detection body includes an elastic outer shell and an internal rod. One end of the internal rod has a handle for the doctor to grip. The outer diameter of the internal rod gradually decreases from the end near the handle to the end away from the handle. The internal rod includes a hollow column, on which multiple base plates are coaxially mounted. Three fixed rods are arranged in an array on the base plates. A first slider is slidably connected to the fixed rod. The upper end face of the first slider has helical teeth. A second slider engages above the first slider. The end of the second slider near the hollow column has a hole along its axial direction. A guide rod is slidably connected to the second slider through the hole. The end of the guide rod away from the second slider is fixed to the hollow column. An arc-shaped plate is fixed to the end of the second slider away from the hollow column. Several pressure sensors are embedded in the outer wall of the arc-shaped plate. The elastic outer shell covers the internal rod and has several openings for the arc-shaped plate to be embedded. The arc-shaped plate is fixedly bonded to the elastic shell at the opening; the built-in rod is provided with a driving mechanism, which includes a driving shaft located inside the hollow column and coaxially arranged, and several rotating shafts passing through the side wall of the hollow column. The two ends of the rotating shaft are respectively fixedly connected to a first bevel gear and a second bevel gear. The hollow column above the chassis is rotatably connected to a drive gear that meshes with the surrounding first sliders. The drive gear includes a spur gear and a third bevel gear fixed to the upper side of the spur gear. The driving shaft is provided with a fourth bevel gear corresponding to the drive gear at intervals. The fourth bevel gear meshes with the first bevel gear, and the third bevel gear meshes with the second bevel gear. The handle is provided with a motor, which is used to drive the first slider to move through the driving mechanism. The built-in rod also includes a communication module, which is used to send the pressure information sensed by the pressure sensor to the display for display.

2. The portable anal manometer according to claim 1, characterized in that: The communication module and the display are connected via Bluetooth.

3. The portable anal manometer according to claim 1, characterized in that: The built-in rod also includes a data processing module, which is used to comprehensively process the pressure information sensed by the pressure sensor.

4. The portable anal manometer according to claim 1, characterized in that: The elastic outer shell is made of silicone.

5. The portable anal manometer according to claim 4, characterized in that: The silicone shell has anti-slip texture, and the outer wall of the silicone shell is covered with a safety sleeve.

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