Low rectal cancer postoperative sphincter training and recovery monitoring device

Abstract

The invention discloses a low rectal cancer postoperative sphincter training and recovery monitoring device. The device comprises a rod body, the front end of the rod body is a reducing part with a concave cambered surface; a generator is arranged at the rear part of the rod body; the light-emitting ring and the built-in generator can emit light and prompt tones with different colors according to the sphincter training pressure of the patient so as to indicate the sphincter training condition of the patient; an elastic hollow central liquid ring is fixed at the front end of the reducing part; first pressure-bearing sheets and second pressure-bearing sheets are alternately arranged on the central liquid ring in the circumferential direction of the central liquid ring; the first pressure-bearing sheet and the second pressure-bearing sheet are arranged on the two sides of the central liquid ring respectively and incline outwards, so that included angles are formed between the first pressure-bearing sheet and the central liquid ring and between the second pressure-bearing sheet and the central liquid ring; the device not only improves the training effect and efficiency, but also reduces the measurement error, enhances the comfort and treatment compliance of a patient, and realizes more comprehensive functional recovery.

Description

Technical Field

[0001] The present invention belongs to the field of medical devices, and particularly relates to a sphincter training and recovery monitoring device after low rectal cancer surgery. Background Art

[0002] Patients after low rectal cancer surgery often face the risk of reduced sphincter function, leading to problems such as fecal incontinence, which seriously affects the quality of life of patients. As a circular muscle, the sphincter controls the opening and closing of the rectum, and the recovery of its function is crucial for the rehabilitation of postoperative patients. However, due to the impact of surgery on local nerves and muscles, the sphincter of patients often has difficulty working normally after surgery and requires a special rehabilitation training device to help restore its function.

[0003] In traditional sphincter training and detection after low rectal cancer surgery, doctors usually rely on manual operations and subjective judgments. This method includes but is not limited to the following common training and detection methods:

[0004] 1. Finger examination

[0005] Finger examination is one of the most traditional and common sphincter function detection methods. Doctors gently insert a finger into the patient's rectum after wearing medical gloves to directly feel the tension and contraction force of the sphincter. Doctors can judge the basic functional state of the sphincter through this method, including muscle tension, contraction force, coordination, and the patient's anal reflex.

[0006] Advantages: The finger examination method is simple and fast, without the need for any equipment, and doctors can perform it at any time in the clinic or hospital.

[0007] Disadvantages: Finger examination mainly relies on the subjective feelings and experience of doctors and lacks accurate data support. There may be differences in perception among different doctors, resulting in insufficient accuracy and consistency of the results. In addition, finger examination may cause discomfort to patients, especially those in the postoperative recovery period, who are more likely to feel pain or discomfort.

[0008] 2. Anal pressure measurement

[0009] Anal pressure measurement is a more accurate sphincter function detection method. This method uses a pressure measurement device (usually a flexible catheter with an airbag or liquid bag at the end), inserts it into the patient's rectum, and measures the contraction force and response of the sphincter through the pressure change of gas or liquid in the catheter.

[0010] Advantages: Anal pressure measurement provides relatively objective numerical data and can accurately measure the pressure changes of the sphincter under different conditions (such as at rest, contraction, and reflex). This method is more quantitative and scientific than finger examination.

[0011] Disadvantages: Although anal pressure measurement provides accurate data, this method still has the limitations of traditional squeezing methods, including but not limited to:

[0012] Lateral expansion problem: In traditional devices, when the deformed body being squeezed (such as an air-filled or liquid-filled sac) is subjected to the squeezing force of the sphincter, it often expands laterally towards both sides of the intestine. This lateral expansion causes part of the squeezing force to be unable to be effectively transmitted to the liquid or gas, resulting in the measured force value being lower than the actual applied force, leading to insufficient measurement. This undesirable deformation not only affects the effectiveness of training but also reduces the accuracy of monitoring.

[0013] Uneven force transmission: The contraction of the sphincter is a complex multi-dimensional process. Traditional squeezing methods usually can only capture the total force in the vertical direction and cannot reflect the subtle force changes in different contraction stages. Since the contraction force of the sphincter does not change linearly, there may be significant differences in force at different contraction degrees. Traditional direct squeezing methods are difficult to capture and accurately measure this non-linear force change, resulting in inaccurate rehabilitation training effects and monitoring data.

[0014] Measurement error and comfort issues: Due to design limitations, traditional squeezing devices may generate large errors during the measurement process, especially when the device is subjected to lateral expansion or local pressure concentration. This error affects the evaluation of the rehabilitation effect and may lead to misjudgment of the patient's rehabilitation progress by doctors. In addition, the design of traditional devices often causes discomfort to patients during training. Especially when the device exerts excessive pressure on local muscles during use, patients may feel pain or discomfort, which in turn affects the compliance and effectiveness of training.

[0015] 3. Biofeedback therapy

[0016] Biofeedback therapy is a technique used to train sphincter function, usually in combination with an anal pressure measurement device. In biofeedback therapy, patients understand their sphincter activities through visual or auditory signals and use these signals to guide their contraction training. This method helps patients improve the strength and control ability of the sphincter through real-time monitoring and feedback mechanisms.

[0017] Advantages: Biofeedback therapy not only helps patients better understand the functional state of the sphincter but also enhances the effectiveness of training through real-time feedback mechanisms. Patients can make adjustments based on the feedback, thereby gradually improving the function of the sphincter.

[0018] Disadvantages: Biofeedback therapy usually requires relatively complex equipment and training venues, and also requires the guidance of professional personnel. In addition, the cost of the equipment is relatively high, imposing a heavy economic burden on some patients. Moreover, this method is still limited by the design defects of the measuring device, such as the lateral expansion problem, which may affect the training effect. Summary of the Invention

[0019] The object of the present invention is to provide a sphincter training and recovery monitoring device after low rectal cancer surgery. By converting the squeezing force of the sphincter into multi-segment relative torsional forces, the present invention can more accurately respond to and reflect the force changes of the sphincter at different contraction stages, thereby providing more accurate and reliable monitoring data. This design not only improves the training effect and efficiency but also reduces measurement errors, enhances the patient's comfort and treatment compliance, and realizes a more comprehensive functional recovery. This innovative method has important application value and promotion prospects in the field of sphincter rehabilitation.

[0020] The technical solution adopted by the present invention is as follows:

[0021] A sphincter training and recovery monitoring device after low rectal cancer surgery, comprising a rod body; the front end of the rod body is a reduced-diameter part with an arc-shaped concave surface; a light-emitting ring and a built-in generator are arranged at the rear part of the rod body; the light-emitting ring and the built-in generator can emit different colors of light and prompt sounds according to the training pressure of the patient's sphincter to indicate the training situation of the patient's sphincter; a flexible hollow central liquid ring is fixed at the front end of the reduced-diameter part; first pressure-bearing pieces and second pressure-bearing pieces are alternately arranged along the circumferential direction of the central liquid ring; the first pressure-bearing pieces and the second pressure-bearing pieces are respectively arranged on both sides of the central liquid ring and inclined outwards, so that there is an included angle between them and the central liquid ring; the roots of the first pressure-bearing pieces and the second pressure-bearing pieces are larger in area than their outer ends, and the first pressure-bearing pieces and the second pressure-bearing pieces are in full contact connection with the outer surface of the central liquid ring; when the first pressure-bearing pieces and the second pressure-bearing pieces are pressed, they drive the corresponding areas of the central liquid ring to twist relatively in the opposite direction; a connecting head is arranged on the inner circle of the central liquid ring; the connecting head is communicated with a liquid level indicating tube located outside through a thin liquid tube; when the central liquid ring is reversely twisted under pressure, the liquid in it is squeezed into the liquid level indicating tube through the thin liquid tube, and the training and recovery situation of the patient's sphincter is monitored by observing the change in the liquid level height of the liquid level indicating tube.

[0022] Wherein, an inflatable annular airbag is sleeved outside the central liquid ring; an inflatable thin tube is connected to the annular inflatable airbag; the annular airbag abuts against and clamps between the first pressure-bearing piece and the second pressure-bearing piece.

[0023] Wherein, a steel wire ring is embedded in the radial cross-section of the central liquid ring; a plurality of steel wire rings are arranged at intervals along the circumferential direction of the central liquid ring to maintain the shape of the radial cross-section of the central liquid ring.

[0024] Wherein, rigid sleeves are respectively sleeved on the positions of the central liquid ring corresponding to the first pressure-bearing piece and the second pressure-bearing piece; there is a gap between adjacent rigid sleeves; the inner surface of the rigid sleeve is adhesively connected to the outer surface of the central liquid ring; the first pressure-bearing piece and the second pressure-bearing piece are respectively fixedly connected to the corresponding rigid sleeve, and the central liquid ring is twisted by driving the rotation of the rigid sleeve.

[0025] Wherein, the liquid in the central liquid ring has a color for easy observation.

[0026] Wherein, the liquid level indicating tube is a transparent slender tube; scale marks are arranged on the liquid level indicating tube for quantifying the squeezing force of the sphincter muscle and corresponding to the recovery progress, so as to provide a more accurate recovery assessment.

[0027] Wherein, a small air pressure monitor is bypassed on the inflatable thin tube to monitor the air pressure of the annular airbag.

[0028] Wherein, a plurality of anti-slip particles are designed on the outer surface of the annular airbag for enhancing the stability of the device at the sphincter muscle and preventing sliding during the training process.

[0029] Wherein, the training and recovery monitoring method using the device is as follows:

[0030] S1. Use an anal dilator to dilate the patient's anus;

[0031] S2. The operator holds the rod body and places the device at the position of the anal sphincter. At this time, the annular airbag is in a deflated state; after inserting into the anus, the skin at the anus opening is embedded in the reduced-diameter part with an arc-shaped inner concave to play a positioning and fixing role, and the positions of the central liquid ring and the annular airbag just correspond to the sphincter position at this time;

[0032] S3. Remove the anal dilator;

[0033] S4. Inflate the annular airbag through the inflatable thin tube to make it expand and harden; during this process, the annular airbag exerts a certain squeezing and expanding force on the sphincter muscle, and the initial pressure on the sphincter muscle can be adjusted;

[0034] S5. When the patient is doing the training of contracting the sphincter muscle, the sphincter muscle squeezes the annular airbag, and the annular airbag squeezes inward to make each first pressure-bearing piece and second pressure-bearing piece deflect outward respectively, so that the central liquid ring twists relatively in opposite directions everywhere, and the liquid therein is squeezed into the liquid level indicating tube through the thin liquid tube. By observing the liquid level height, the squeezing force of the sphincter muscle can be accurately monitored; the light-emitting ring and the generator will also give color and sound indications according to the training strength of the patient's sphincter muscle to help the observer and the patient himself know whether the sphincter muscle control strength is sufficient;

[0035] S6. After the training and monitoring are completed, just release the gas in the annular airbag to make it shrink and it can be easily taken out of the device immediately.

[0036] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are as follows:

[0037] 1. Automatic positioning and multiple prompting means

[0038] The reduced-diameter part is designed as an arc-shaped concave structure, which realizes automatic positioning and fixation by utilizing the structural characteristics of the anus opening, ensuring that the central liquid ring accurately aligns with the sphincter position. The central liquid ring is the core component, filled with liquid inside. When stressed, the liquid reflects the training effect of the sphincter through the liquid level indicating tube. The external annular airbag forms a uniform pressure through inflation, helping the pressure-bearing piece accurately conduct the sphincter force, enhancing the training effect and ensuring comfort. The light-emitting ring and the generator respectively give feedback on the training intensity of the sphincter through optical signals and sound prompts, helping the patient adjust the strength to avoid excessive or insufficient force. These components work together to achieve precise monitoring and feedback of sphincter training, promoting the postoperative recovery of the patient.

[0039] 2. Matching between the contraction characteristics of the sphincter and the multi-segment torsional force

[0040] The contraction of the sphincter is not a simple linear extrusion, but a synchronous contraction behavior of the annular muscle. The force generated by this contraction is not applied uniformly in one direction, but acts in a multi-directional and comprehensive manner along the annular structure of the muscle. Traditional extrusion techniques usually only capture a part of this force and are difficult to comprehensively reflect the actual function of the sphincter.

[0041] By converting the contraction force of the sphincter into multi-segment relative torsional forces of the central liquid ring, the present invention can better simulate the natural contraction process of the sphincter. The inclined design of the first pressure-bearing piece and the second pressure-bearing piece enables the multi-directional extrusion forces of the sphincter to be applied simultaneously in different regions, forming a comprehensive torsional force. This force transmission method is very consistent with the natural contraction characteristics of the sphincter and can more comprehensively and accurately reflect the true working state of the sphincter.

[0042] 3. The uniformly distributed torsional force improves the force transmission efficiency

[0043] During the natural contraction process of the sphincter, the force distribution is multi-dimensional and complex. Traditional extrusion methods may concentrate in a certain direction, resulting in the underutilization of forces in other directions, thereby affecting the training and monitoring effects. Through the design of multi-segment torsional forces, the present invention can evenly transmit all-directional forces generated during the sphincter contraction to the central liquid ring, thus maximizing the utilization of the sphincter contraction force.

[0044] This uniform force transmission not only improves the efficiency of liquid extrusion but also ensures that the liquid within the entire liquid ring can be fully extruded, reducing dead corners and undetected areas. This design enhances the training effect, enabling every contraction of the sphincter to be fully utilized, thereby accelerating the rehabilitation process.

[0045] 4. Reduce local pressure concentration and conform to the contraction pattern of the sphincter

[0046] The circular structure of the sphincter means that the force during its contraction is evenly distributed around the entire ring. Traditional extrusion methods may lead to excessive or insufficient local pressure, which not only affects the accuracy of monitoring but also may cause excessive burden on local tissues, thereby causing discomfort or even injury. Through the special design of the pressure-bearing sheet, the present invention can convert the contraction force of the sphincter into a more uniform torsional force, thus avoiding the concentration of local pressure.

[0047] This design conforms to the natural contraction pattern of the sphincter, enabling the entire device to better adapt to the physiological characteristics of the patient during operation, reducing possible pain or discomfort during the training process. At the same time, the uniform pressure distribution also means that each part of the sphincter can receive balanced training, contributing to the comprehensive restoration of its function.

[0048] 5. More sensitive monitoring reflects subtle changes

[0049] The contraction force of the sphincter may be relatively weak in the initial stage of rehabilitation. Traditional extrusion methods may not be able to accurately capture these subtle changes, while the multi-segment torsional force transmission method can amplify these tiny forces, ensuring the smooth extrusion of the liquid and its entry into the liquid level indicating tube. This design significantly improves the sensitivity of the device to the contraction of the sphincter, capable of detecting smaller force changes and providing a more accurate recovery assessment.

[0050] During the gradual recovery process of the sphincter, this highly sensitive monitoring can help doctors timely adjust the training plan to ensure that the training intensity at each rehabilitation stage can match the actual situation of the patient, thereby optimizing the rehabilitation effect.

[0051] 6. Ergonomic design enhances the patient experience

[0052] The contraction of the sphincter needs to be carried out in a comfortable environment, especially during the postoperative rehabilitation stage when the patient has a higher sensitivity. Traditional extrusion devices sometimes cause excessive local pressure, affecting the comfort of the patient. Through the design of multi-segment torsional force, the present invention can reduce the stimulation of a single part while evenly distributing the pressure. This ergonomic design can enhance the overall user experience of the patient.

[0053] More importantly, through a design that is closer to the natural contraction mode, when patients use the device of the present invention for training, they will feel a more natural force transmission method, reducing psychological and physiological discomfort, increasing the patient's compliance with training, and contributing to long-term rehabilitation treatment.

[0054] 7. Comprehensive Rehabilitation and Long-Term Durability

[0055] Due to the design of the present invention being closer to the natural contraction mode of the sphincter, it can not only more effectively help patients recover normal functions, but also avoid secondary injuries caused by improper training. Through the reasonable distribution of multi-segment torsional forces, the device can maintain stable performance during long-term use, reducing equipment wear caused by material fatigue or local damage, thereby improving the durability and safety of the device.

[0056] This design ensures that the device can help patients with rehabilitation training for a long time and efficiently, and still maintain accurate monitoring functions after multiple uses, reducing the maintenance and replacement costs of medical equipment.

[0057] 8. Eliminate Lateral Expansion and Improve Measurement Accuracy

[0058] Traditional extrusion methods usually rely on the direct extrusion of a deformable body (such as an air-filled or liquid-filled balloon) filled with liquid or gas by the contraction of the sphincter. However, the contraction force of the sphincter is not always fully converted into vertical pressure. In this case, when the deformable body is squeezed, it often expands laterally towards both sides of the intestine, resulting in uneven force distribution. This non-ideal deformation causes some of the force not to act directly on the monitoring target, but to dissipate through the lateral expansion of the deformable body, thereby affecting the measurement accuracy.

[0059] When the deformable body expands laterally when being squeezed, the pressure that should have been directly transmitted to the liquid or gas is dispersed, causing the device to fail to fully capture all the forces exerted by the sphincter. In other words, some of the force is "wasted" on lateral expansion, rather than being used for effective measurement or training.

[0060] In traditional designs, in order to reduce the impact of lateral expansion, it is usually necessary to increase the thickness of the deformable body or use harder materials, but this will bring other problems:

[0061] Reduced comfort: A thick or hard deformable body may cause discomfort to the patient, especially during repeated training, which is likely to cause local tenderness or other discomforts.

[0062] Increased design complexity: In order to reduce lateral expansion, designers may need to introduce more complex structures, such as reinforcement layers or multi-layer structures. This not only increases the design complexity, but may also increase production costs, while making the device more difficult to clean and maintain.

[0063] By converting the squeezing force of the sphincter into the multi-segment relative torsional force of the central liquid ring, the problem of lateral expansion is effectively avoided. Through the design of the first pressure-bearing piece and the second pressure-bearing piece, the contraction force of the sphincter is evenly distributed and converted into torsional force, rather than simply vertical squeezing force. This torsional force will not cause the lateral expansion of the deformable body, ensuring that all the forces exerted by the sphincter can be effectively captured and measured.

[0064] By converting it into torsional force, the present invention can capture all the forces exerted by the sphincter, avoiding the measurement deficiency caused by lateral expansion. This makes the measurement data more accurate, reflecting the real recovery progress of the patient and helping doctors formulate more precise rehabilitation plans.

[0065] Due to the more efficient transmission of force, each contraction of the sphincter can be fully utilized, improving the training effect and efficiency and accelerating the rehabilitation process.

[0066] 9. The present invention combines the design of an annular airbag, which not only solves the limitations of the traditional extrusion method through torsional force transmission and effective mechanical distribution, but also further enhances the functionality of the device and the user experience of the patient. The application of the annular airbag in the present invention brings the following important beneficial effects:

[0067] Through the inflation capillary tube, the operator can precisely control the pressure inside the annular airbag, thereby adjusting the squeezing intensity of the device on the sphincter. This controllability enables the device to adapt to the needs of different patients. Whether it is mild training in the early recovery period or intensive training in the later stage, it can be achieved by adjusting the airbag pressure. This flexible adjustment ability significantly improves the applicability and effectiveness of the device and greatly enhances the versatility of the device.

[0068] By providing a uniform and controllable pressure environment, the annular airbag can more effectively transmit the contraction force of the sphincter to the central liquid ring, prompting the liquid ring to undergo uniform multi-segment torsion. This design not only improves the force transmission efficiency but also significantly enhances the monitoring accuracy.

[0069] 10. The operation method of the device of the present invention is also very simple. The preparation, implementation, and evaluation of sphincter training can be completed through several steps. First, use an anal dilator to dilate the patient's anus, then operate the rod body to place the device in the appropriate position, inflate the annular airbag through the inflation capillary tube, and adjust to the appropriate pressure to start the training. After the training is over, release the gas in the airbag, shrink the device and then take it out. This process is simple and clear, and the patient can operate it by himself under the guidance of medical staff, which is convenient for daily use. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] Figure 1 It is a schematic diagram of the central liquid ring and the pressure-bearing piece of the present invention;

[0071] Figure 2 It is a schematic radial cross-sectional view when the steel wire ring is adopted in the present invention;

[0072] Figure 3 It is a partial schematic view when the steel wire ring is adopted in the present invention;

[0073] Figure 4 It is a schematic radial cross-sectional view when the rigid sleeve is adopted in the present invention;

[0074] Figure 5 It is a partial schematic view when the rigid sleeve is adopted in the present invention.

[0075] Markings in the figure: 1, central liquid ring; 11, first pressure-bearing piece; 12, second pressure-bearing piece; 13, connector; 14, thin liquid pipe; 16, steel wire ring; 17, rigid sleeve; 2, annular airbag; 21, inflation thin pipe; 3, liquid level indicating pipe; 4, rod body; 41, reduced diameter part; 42, light-emitting ring. Specific embodiments

[0076] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0077] Patients after low rectal cancer surgery often face the risk of sphincter function decline, which will lead to serious problems affecting the quality of life such as fecal incontinence. In order to help patients recover sphincter function and improve the quality of life after surgery, this design proposes a sphincter training and recovery monitoring device for patients after low rectal cancer surgery. Through physical mechanics principles and ergonomic design, the device can provide effective sphincter training for patients and simultaneously monitor their recovery situation in real time.

[0078] See Figures 1 to 5The present invention relates to a postoperative sphincter training and recovery monitoring device for low rectal cancer, comprising a rod body 4; the front end of the rod body 4 is a concave arc-shaped reduced diameter portion 41; the rear part of the rod body 4 is provided with a luminous ring 42 and a generator 43 built into the rod body 1; the luminous ring 42 and the generator 43 can emit light and prompt sounds of different colors according to the patient's sphincter training pressure to indicate the patient's sphincter training status; an elastic hollow central liquid ring 1 is fixed at the front end of the reduced diameter portion 41; the central liquid ring 1 is alternately provided with a first pressure-bearing sheet 11 and a second pressure-bearing sheet 12 along its circumferential direction; the first pressure-bearing sheet 11 and the second pressure-bearing sheet 12 are respectively arranged on both sides of the central liquid ring 1 and are inclined outwards so that they are aligned with the central liquid ring 1. There is an angle between the central liquid rings 1; the roots of the first pressure-bearing sheet 11 and the second pressure-bearing sheet 12 are larger in area than their outer ends, and the first pressure-bearing sheet 11 and the second pressure-bearing sheet 12 are fully in contact and connected with the outer surface of the central liquid ring 1; so that the first pressure-bearing sheet 11 and the second pressure-bearing sheet 12 drive the central liquid ring 1 in the corresponding area to twist relatively in the opposite direction when under pressure; a connector 13 is provided on the inner circle of the central liquid ring 1; the connector 13 is connected to the liquid level indicator tube 3 located outside through a thin liquid tube 14; when the central liquid ring 1 is reversed under pressure, further liquid is squeezed through the thin liquid tube 14 to enter the liquid level indicator tube 3, and the training and recovery of the patient's sphincter are monitored by observing the changes in the liquid level height of the liquid level indicator tube 3.

[0079] Further, optionally, the central liquid ring 1 is provided with an inflatable annular airbag 2 on its outer sleeve; the annular airbag 2 is connected with an inflatable capillary 21; the annular airbag 2 abuts against and is clamped between the first pressure-bearing sheet 11 and the second pressure-bearing sheet 12.

[0080] Furthermore, a wire ring 16 is embedded in the radial section of the central liquid ring 1 ; a plurality of wire rings 16 are arranged at intervals along the circumferential direction of the central liquid ring 1 to maintain the radial cross-sectional shape of the central liquid ring 1 .

[0081] Another solution for replacing the wire ring 16 is: rigid sleeves 17 are respectively sleeved on the positions corresponding to the first pressure-bearing plate 11 and the second pressure-bearing plate 12 on the central liquid ring 1; there is a gap between adjacent rigid sleeves 17; the inner surface of the rigid sleeve 17 is bonded to the outer surface of the central liquid ring 1; the first pressure-bearing plate 11 and the second pressure-bearing plate 12 are respectively fixedly connected to the corresponding rigid sleeves 17, and the central liquid ring 1 is twisted by driving the rotation of the rigid sleeve 17.

[0082] Furthermore, the liquid in the central liquid ring 1 has color for easy observation.

[0083] Furthermore, the liquid level indicator tube 3 is a transparent elongated tube; the liquid level indicator tube 3 is provided with scale marks for quantifying the squeezing force of the sphincter and corresponding to the recovery progress, so as to provide a more accurate recovery assessment.

[0084] Furthermore, a small air pressure monitor is bypassed on the inflatable thin tube 21 to monitor the air pressure of the annular airbag 2.

[0085] Furthermore, a plurality of anti-slip particles are designed on the outer surface of the annular airbag 2 to enhance the stability of the device at the sphincter and prevent sliding during training.

[0086] Specifically, the central liquid ring 1 is the core component of the entire device and is made of medical-grade silicone material. This material has excellent elasticity and flexibility, and can maintain the stability of shape and function during multiple squeezes and twists. The outer diameter of the liquid ring 1 is 30 - 40 mm, the inner diameter is 20 - 30 mm, and the wall thickness is 5 - 8 mm. The specific dimensions can be adjusted according to the physiological characteristics of the patient. The inside of the liquid ring 1 is a hollow structure filled with a medical visible liquid. When this liquid is squeezed, it can flow through the liquid level indicating tube 3, thereby reflecting the force on the sphincter and facilitating the monitoring of its recovery progress.

[0087] The diameter of the wire ring 16 is 0.5 - 1 mm, and it is evenly distributed along the circumference of the liquid ring 1 at intervals of 10 - 15 mm. These wire rings 16 endow the liquid ring 1 with sufficient strength, enabling it to maintain a stable shape when squeezed by the sphincter and ensuring the accuracy and reliability of liquid flow.

[0088] The pressure-bearing pieces are important components outside the central liquid ring 1, including the first pressure-bearing piece 11 and the second pressure-bearing piece 12. The root width of each pressure-bearing piece 11, 12 is 10 - 15 mm, the outer end width is 5 - 8 mm, the thickness is 2 - 3 mm, and the length is 20 - 25 mm. The shapes of the pressure-bearing pieces 11, 12 are designed to gradually taper from the root to the outer end, forming an inclination angle (30 - 45 degrees). In this way, the squeezing force of the sphincter can be effectively transmitted, prompting the central liquid ring 1 to generate relative reverse torsion when compressed.

[0089] The pressure-bearing pieces 11, 12 are adhesively fixed to the outer surface of the central liquid ring 1 through a special medical-grade adhesive, or in another alternative, they are closely fitted to the inner surface of the rigid sleeve 17. The rigid sleeve 17 is made of hard plastic or medical stainless steel, with a thickness of 1 - 2 mm and a length consistent with that of the pressure-bearing pieces 11, 12. The inner diameter of the sleeve 17 matches the outer diameter of the central liquid ring 1 and is tightly sleeved outside the liquid ring 1. When the pressure-bearing pieces 11, 12 are squeezed by the sphincter, through the conduction of the rigid sleeve 17, the central liquid ring 1 is driven to twist, causing the internal liquid to flow through the thin liquid tube 14, visually reflecting the training effect of the sphincter.

[0090] The annular airbag 2 is another important component in the device, which is designed to form a controllable pressure environment around the sphincter. The airbag 2 adopts a three-layer structure: the outer layer is medical silicone to ensure the flexibility and durability of the airbag; the middle layer is a reinforcement layer, usually made of nylon or polyester fiber, which gives the airbag 2 tensile strength under high pressure; the inner layer is an airtight layer, usually made of thermoplastic polyurethane (TPU), to ensure that the airbag 2 maintains good airtightness after inflation.

[0091] The inner diameter of the annular airbag 2 is the same as the outer diameter of the central liquid ring 1, the outer diameter is 5-10 mm larger than the liquid ring 1, and the thickness is 3-5 mm. The airbag 2 is connected to the external air source through the inflation tube 21. When inflated, the airbag 2 expands and applies uniform pressure to open the sphincter, creating conditions for the pressure-bearing plates 11 and 12 to bear force and increase comfort. The outer surface of the airbag 2 is designed with multiple anti-slip particles to enhance the stability of the device at the sphincter and prevent sliding during training.

[0092] The inflatable capillary 21 is used to inflate the annular airbag 2. The material is flexible medical grade silicone, with an inner diameter of 2-3 mm, an outer diameter of 3-4 mm, and a length of 500-700 mm, so as to be connected to an external inflation device. A small air pressure monitor is connected to the capillary 21, and the outer shell is made of ABS plastic, and the interior is a precision air pressure sensor. The air pressure monitor monitors the pressure inside the airbag 2 in real time, displays the state of the expansion of the airbag 2, and helps the operator control the pressure of the airbag 2 within a safe range to ensure the safety of the patient.

[0093] The liquid level indicator tube 3 is used to display the height change of the liquid in the central liquid ring 1, helping to quantify the training effect of the sphincter. The indicator tube 3 is made of transparent medical grade plastic or glass, with a length of 100-150 mm, an inner diameter of 3-5 mm, and an outer diameter of 5-7 mm. There are 0.5-1 mm scale marks on the tube wall to facilitate accurate measurement of liquid level changes. The liquid level indicator tube 3 is connected to the inner ring of the central liquid ring 1 and is connected through a thin liquid tube 14. When the central liquid ring 1 is twisted by force, the liquid is squeezed into the liquid level indicator tube 3. The change in liquid level can intuitively reflect the strength and recovery of the sphincter.

[0094] How to use the device:

[0095] S1: The patient lies on his side or supine and uses a medical anal dilator to dilate the anus. The outer diameter of the dilator is 30-40 mm and the inner diameter is 25-35 mm, which makes it easier to insert the device.

[0096] S2: When the annular airbag 2 is in the deflated state, the operator holds the rod body 4 and puts the device into the anal sphincter position. After the device is inserted into the anus, the skin of the anus is embedded in the arc-shaped concave reduced diameter portion 41 to play a positioning and fixing role, and the positions of the central liquid ring 1 and the annular airbag 2 at this time just correspond to the sphincter position;

[0097] S3: Remove the anal retractor and make sure the device is firmly in place on the sphincter. At this point, the device is in place on the sphincter and is ready to begin training and monitoring.

[0098] S4: Inflate the annular airbag 2 through the inflatable capillary 21, and observe the reading of the air pressure monitor during inflation until the preset pressure is reached. At this time, the airbag 2 expands and applies a moderate initial pressure to the sphincter, providing the basic conditions for training.

[0099] S5: The patient starts to perform sphincter contraction training. When the patient contracts the sphincter, the internal pressure of the airbag 2 is transmitted to the pressure-bearing plates 11 and 12, and the pressure-bearing plates 11 and 12 rotate accordingly and drive the central liquid ring 1 to twist. The liquid is squeezed out under the action of twisting, and enters the liquid level indicator tube 3 through the thin liquid tube 14. The liquid level in the tube rises, and the squeezing force of the sphincter can be accurately monitored by observing the liquid level height; the light ring 42 and the generator will also emit color and sound indications according to the patient's sphincter training strength, so as to help the observer and the patient know whether the sphincter control strength is sufficient; the chip of the device can collect the data of the pressure sensor at the bottom of the liquid level indicator tube 3, and compare it with the system preset parameters to judge whether the patient's training strength is sufficient. If it is too large, too small, or within the appropriate range, the light ring 42 will emit different colors of light and / or the generator will emit different prompt sounds.

[0100] S6: After the training, the gas in the annular airbag 2 is released through the inflation tube 21, so that the airbag 2 shrinks and returns to the uninflated state. At this time, the device no longer exerts pressure on the sphincter and can be easily removed from the patient's body, and the entire operation process is successfully completed.

[0101] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sphincter training and recovery monitoring device after low rectal cancer surgery, characterized in that: It includes a rod body (4); the front end of the rod body (4) is a reduced-diameter part (41) with an inwardly concave arc surface; a light-emitting ring (42) and a built-in generator are provided at the rear of the rod body (4); the light-emitting ring (42) and the generator (43) can emit different colors of light and prompting sounds according to the training pressure of the patient's sphincter to indicate the training strength of the patient's sphincter; a flexible hollow central liquid ring (1) is fixed at the front end of the reduced-diameter part (41); first pressure-bearing pieces (11) and second pressure-bearing pieces (12) are alternately arranged along the circumferential direction of the central liquid ring (1); the first pressure-bearing pieces (11) and the second pressure-bearing pieces (12) are respectively arranged on both sides of the central liquid ring (1) and inclined outwards, so that there is an included angle between them and the central liquid ring (1); the roots of the first pressure-bearing pieces (11) and the second pressure-bearing pieces (12) are larger in area than their outer ends, and the first pressure-bearing pieces (11) and the second pressure-bearing pieces (12) are in full contact connection with the outer surface of the central liquid ring (1); when the first pressure-bearing pieces (11) and the second pressure-bearing pieces (12) are pressed, they drive the corresponding area of the central liquid ring (1) to twist relatively in the reverse direction; a connector (13) is arranged on the inner ring of the central liquid ring (1); the connector (13) is connected to a liquid level indicating tube (3) located outside through a thin liquid tube (14); when the central liquid ring (1) is reversely rotated under pressure, the liquid therein is squeezed and enters the liquid level indicating tube (3) through the thin liquid tube (14), and the training and recovery of the patient's sphincter are monitored by observing the change in the liquid level height of the liquid level indicating tube (3).

2. The sphincter training and recovery monitoring device for post-operative low rectal cancer according to claim 1, wherein: An inflatable annular airbag (2) is sleeved outside the central liquid ring (1); an inflation thin tube (21) is connected to the annular inflatable airbag (2); the annular airbag (2) abuts against and clamps between the first pressure-bearing piece (11) and the second pressure-bearing piece (12).

3. The sphincter training and recovery monitoring device for patients after low rectal cancer surgery according to claim 2, wherein: A steel wire ring (16) is embedded in the radial cross-section of the central liquid ring (1); a plurality of steel wire rings (16) are arranged at intervals along the circumferential direction of the central liquid ring (1) to maintain the shape of the radial cross-section of the central liquid ring (1).

4. The sphincter training and recovery monitoring device after low rectal cancer surgery according to claim 2, characterized in that: Rigid sleeves (17) are respectively sleeved on the central liquid ring (1) at positions corresponding to the first pressure-bearing piece (11) and the second pressure-bearing piece (12); there is a gap between adjacent rigid sleeves (17); the inner surface of the rigid sleeve (17) is bonded to the outer surface of the central liquid ring (1); the first pressure-bearing piece (11) and the second pressure-bearing piece (12) are respectively fixedly connected to the corresponding rigid sleeve (17), and the central liquid ring (1) is twisted by driving the rotation of the rigid sleeve (17).

5. The sphincter training and recovery monitoring device after low rectal cancer surgery according to claim 1, wherein: The liquid in the central liquid ring (1) has a color for easy observation.

6. The sphincter training and recovery monitoring device after low rectal cancer surgery according to claim 1, characterized in that: The liquid level indicating tube (3) is a transparent slender tube; scale marks are provided on the liquid level indicating tube (3) to quantify the squeezing force of the sphincter and correspond to the recovery progress, so as to provide a more accurate recovery assessment.

7. The sphincter training and recovery monitoring device after low rectal cancer surgery according to claim 1, characterized in that: A small air pressure monitor is bypassed on the inflation thin tube (21) to monitor the air pressure of the annular airbag (2).

8. The sphincter training and recovery monitoring device after low rectal cancer surgery according to claim 1, characterized in that: A plurality of anti-slip particles are designed on the outer surface of the annular airbag (2) to enhance the stability of the device at the sphincter and prevent sliding during training.

9. A sphincter training and recovery monitoring device after low rectal cancer surgery according to claim 3 or 4, characterized in that, The training and recovery monitoring method using the said device is as follows: S1. Use an anal dilator to dilate the patient's anus; S2. The operator holds the rod body (4) and places the device at the position of the anal sphincter. At this time, the annular airbag (2) is in a deflated state. After inserting it into the anus, the skin at the anal orifice is embedded in the reduced-diameter part (41) with an arc-shaped concave surface to play a positioning and fixing role, and the positions of the central liquid ring (1) and the annular airbag (2) just correspond to the position of the sphincter at this time; S3. Remove the anal dilator; S4. Inflate the annular airbag (2) through the inflation capillary tube (21) to make it expand and harden. During this process, the annular airbag (2) exerts a certain squeezing and expanding force on the sphincter, and the initial pressure on the sphincter can be adjusted; S5. When the patient is doing the training of contracting the sphincter, the sphincter squeezes the annular airbag (2), and the annular airbag (2) squeezes inward to make each first pressure-bearing piece (11) and the second pressure-bearing piece (12) deflect outward respectively, so that the central liquid ring (1) twists relatively in opposite directions at each place, and the liquid in it is squeezed into the liquid level indicating tube (3) through the thin liquid tube (14). By observing the liquid level height, the squeezing force of the sphincter can be accurately monitored. The light-emitting ring (42) and the generator will also give color and sound indications according to the training strength of the patient's sphincter to help the observer and the patient himself know whether the control strength of the sphincter is sufficient; S6. After the training and monitoring are completed, just deflate the gas in the annular airbag (2) to make it shrink and it can be easily taken out of the device immediately.

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