CN115177846B - Tension-free feeling balloon and device using same - Google Patents

Abstract

The application relates to a non-tension feeling balloon and a device using the balloon, comprising: the hollow tube is provided with holes the same as the small bags in number, and the inside of each small bag is communicated with the inside of the hollow tube through the holes respectively; one end of the hollow tube is closed, the other end is open, and the open end is connected with the catheter; the pouch is made of a tensionless material. The application can simulate the excrement storage process more truly, stimulate the anorectal proprioception, and provide more scientific, objective and effective detection data for clinical diagnosis and treatment; the function of simulating physiological excrement storage is used for clinical treatment, the anorectal proprioceptive function is aroused, the nerve access of anorectal sense is restored, the sense pain caused by the discomfort of the anus due to nerve factors is relieved, and the excrement function is promoted to be recovered.

Description

A tension-free sensory balloon and a device using the same

Technical field

The invention relates to the technical field of medical rehabilitation for anorectal, pelvic floor and constipation diseases, and specifically relates to a tension-free sensory balloon and a device using the balloon, which can be used for tension-free anorectal proprioceptive testing and training, and is mainly suitable for use in the anus. Rectal sensory dysfunction, constipation, anal pain, patients with anorectal sensory dysfunction after pelvic anal surgery, pelvic floor and anal trauma, and trauma surgery.

Background technique

The urge to defecate is a proprioception and organ sensation produced in the cerebral cortex through the nervous system when the rectum is distended. Patients with abnormal anorectal proprioception have a weakened, no or sensitive defecation intention, with clinical manifestations such as difficulty defecation, constipation, sensitive defecation, incontinence, anal pain, poor defecation, frequent defecation and a feeling of incomplete defecation. Patients often suffer from long-term distress, which cannot be cured after long-term treatment, and are miserable, which may even affect their normal life, work, and study. In severe cases, symptoms such as mental anxiety and depression may occur. Due to complex causes, treatment is difficult. Clinical examination of anorectal sensation mostly uses anorectal manometry. The value of the pressure balloon injection is used to collect the corresponding anorectal sensation of the patient. The results are also collected through the changes in intestinal cavity pressure and volume during the pressure balloon injection process. The ratio of changes gives the value of rectal compliance, which is an important functional index for evaluating anorectal sensory function and rectal compliance. Because the pressure balloons currently used in clinical applications are all tension balloon devices, after the balloon is inflated, it does not tension-free expansion or pressure on the local rectal wall at an uncertain location, which is the testing method of this tension balloon. There is a deviation from the human body's true physiological stool storage process, so the measured anorectal proprioception or rectal compliance has certain false values, which brings uncertain effects to diagnosis and treatment, making the treatment effect unsatisfactory or even delaying the condition.

Contents of the invention

The purpose of the present invention is to provide a tension-free sensory balloon and a device using the balloon, which can simulate the stool storage process more realistically, stimulate anorectal proprioception, and provide more scientific, objective and effective detection data for clinical diagnosis and treatment. ;Use its function to simulate physiological feces storage for clinical treatment, awaken the anorectal proprioceptive function, restore the nerve pathways of anorectal sensation, relieve the pain of anal discomfort caused by neurological factors, and promote the recovery of defecation function.

In order to achieve the above objects, the present invention provides the following technical solutions:

In a first aspect, the present invention provides a tension-free sensory balloon, which includes: a hollow tube 12 and a plurality of small bags 11. The plurality of small bags 11 are arranged axially around the hollow tube. The hollow tube is provided with a The sacs have the same number of holes, and the interior of each sac is connected to the interior of the hollow tube through the holes; one end of the hollow tube 12 is closed, the other end is open, and the open end is connected to the catheter; the sacs are made of tension-free material.

The total volume of all sacs is 800-1100mL, and the length of the sacs is 70-90mm.

Multiple small sacs are close to each other, but there are gaps. Connecting tubes are provided at corresponding positions of the small sacs and the holes on the hollow tube, so that the small sacs can communicate with the inside of the hollow tube, and the small sacs can be fixed on the hollow tube. On the top, all the small sacs are evenly distributed along the circumferential direction without overlapping each other, forming a spherical and conical structure as a whole. The small sacs are filled with air or water through the hollow tube.

All vesicles are generally in the shape of a garlic head.

The large-diameter ends of all small sacs are fixed on a fixed piece, and the fixed piece is fixed to the hollow tube; the small-diameter end of the small sac is tightly attached to the hollow tube.

The number of said vesicles is 3-5.

The tension-free sensory balloon also includes a C-shaped guide rod. One end of the C-shaped guide rod has a C-shaped frame. The C-shaped frame has a C-shaped opening. The C-shaped opening is stuck on the catheter at the connection position between the hollow tube and the catheter. The other end of the C-shaped guide rod is a hard rod. The length of the hard rod is 150-180mm. The diameter of the hard rod is smaller than the outer diameter of the C-shaped frame. The hard rod is fixedly connected to the end face of the C-shaped frame.

The tension-free sensory balloon also includes a sleeve, which is sleeved on the outer surface of a plurality of small sacs. The end of the sleeve terminates near the C-shaped frame of the C-shaped guide rod, and the sleeve is closely attached to or fixed on the C-shaped guide rod. On the frame; all small bags are in a stored state when not inflated with air or water. When used, the open end of the hollow tube is connected to the flexible conduit 3, and the C-shaped frame partially wraps the conduit 3 and is docked with the end of the hollow tube. Type C The rigid rod of the guide rod is arranged parallel to the length of the conduit.

In a second aspect, the present invention provides a device using the tension-free sensory balloon described above.

In a third aspect, the present invention provides a tension-free anorectal proprioceptive testing and training device, which device includes:

Tension-free sensory balloon. The body part of the tension-free sensory balloon is made of tension-free polypropylene material.

In the neck, the proximal end is connected to the tension-free sensory balloon, and the distal end is connected to the catheter. The diameter of the neck gradually narrows from the connection point of the tension-free sensory balloon, which is equivalent to the diameter of the catheter. After the middle part of the neck of the balloon is tied with a medical thin wire , the distal part is turned over to cover the ligating thin wire;

Catheter, made of medical rubber material;

Tee tube, made of medical polyethylene material, connects the catheter and the infusion tube mouth.

Three-way switch, made of medical polyethylene material;

The air injection tube mouth is made of medical polyethylene material;

The gas injection device is a medical disposable sterile spiral mouth syringe;

The gas injection pipe opening is connected to the gas injection device.

Compared with the prior art, the beneficial effects of the present invention are:

The tension-free sensory balloon of the present invention is made of polypropylene plastic, which has no tension, but has a certain degree of flexibility. When produced, it has a spherical cone shape with a set volume. After injecting air or liquid into the balloon, the balloon The sac is slowly propped up, and its shape can follow the inner wall of the rectum. Due to the conforming effect, it can simulate the accumulation process of feces and disperse the pressure. Each small sac is connected by a hollow tube, and can be expanded to reach the set capacity at the same time, and the small sacs There are gaps between them, and intestinal fluid and gas in the body can be discharged through the gaps. It is arranged in the form of multiple small capsules. If one of the small capsules is damaged, due to the small size and small explosion shock wave, the material in the capsule can be slowly discharged. Since multiple small capsules are connected, after one small capsule is damaged, the other three capsules will also be discharged. They are released slowly from the breach, which will not cause intestinal damage, and avoid the occurrence of large shock waves that damage the intestines when a single capsule explodes.

The tension-free sensory balloon of the present invention adds water to the balloon during the recovery period after rectal surgery to imitate feces, thereby expanding the intestinal anastomosis and preventing the progression of (anastomotic scar) contracture.

The design of this patent's simple structure, easy operation, and tension-free balloon makes the testing process closer to the functional state of human feces storage, so the test data is more accurate and effective, and it is more meaningful for clinical diagnosis and treatment; the operation method of this patent is simple It is easy to learn and suitable for patients’ long-term home rehabilitation training. Through planned rehabilitation and training using this device, the initial anorectal sensation can be gradually awakened, the anorectal defecation sensation can be adjusted, the nerve pathways of anorectal sensation can be restored, and the recovery of anorectal sensory abnormalities can be promoted. For a small number of clinical patients with anal or rectal stenosis or anastomotic stenosis caused by surgery or trauma, the tension-free expansion effect of this device can be used to effectively expand the treatment and reduce the patient's pain and swelling discomfort. This also makes this part of the patient previously treated with other methods. Patients whose device expansion failed were treated well. In addition, the tension-free balloon component of the device can be used to connect anorectal manometry to make the test results of rectal compliance in the anorectal manometry more accurate.

This patented structure has a simple structure and is easy to operate. The tension-free design makes the anorectal pressure test closer to the physiological feces storage state of the human body. The tension-free pressure stimulation more realistically restores the anorectal proprioceptive reflex process, providing more objective, true and effective clinical results. The data can better guide the formulation of clinical diagnosis and treatment plans. In further clinical treatment and family rehabilitation training, the use of this patented tension-free pressure stimulation reflex has obvious effects under planned treatment planning.

The tension-free anorectal proprioceptive testing device, the tension-free balloon length and volume satisfy the tension-free filling and expansion of the balloon in the anorectal cavity after water injection, and more truly reflects the normal physiological state of the stool storage process. It also truly presents the neuroproprioceptive response of the anus and rectum under certain pressure stimulation. This device is easy to operate independently; suitable for home training and rehabilitation treatment. In addition, in addition to the main proprioceptive testing, anorectal sensory function training and rehabilitation treatment, the patented invention also has the tension-free sensory balloon part of the device that can be connected to an anorectal manometry, thereby making compliance detection more accurate. Functional status. At present, tension balloons are commonly used in clinical practice for anorectal manometry. After inflating, the pressure will be generated at the local contact point between the crown of the tension balloon and the intestinal lumen. When stimulated by a certain pressure, nerve reflexes will be activated, resulting in The ratio of anorectal volume to pressure change is called anorectal compliance, which reflects the functional status of the anorectum. However, due to the limitations of the tension properties of the tension balloon, the values of pressure and volume deviate too much from the true physiological process. Therefore, the tension-free balloon of this pressure measuring device is connected to the anorectal manometry, and the anorectal compliance measured thereby reflects the true functional status more objectively, and the measured value is more accurate. This device is also used for patients with anal stenosis or anastomotic stenosis after colorectal surgery; the expansion property of the tension-free balloon cleverly avoids the wound or anastomosis site, and the tension-free feeling balloon can be inflated or filled with water. The method of filling the low-pressure space of the intestinal lumen with repeated and gradual increments saves patients from pain and achieves effective clinical expansion.

Description of drawings

Figure 1 is a schematic three-dimensional structural diagram of an embodiment of the tension-free sensory balloon of the present invention.

Figure 2 is a partial three-dimensional structural diagram of a C-shaped guide rod of an embodiment of the tension-free sensory balloon of the present invention.

Figure 3 is a schematic diagram of the connection structure between the tension-free sensory balloon and the catheter of the present invention.

Figure 4 is an exploded view of the connection structure between the tension-free sensory balloon and the catheter of the present invention.

Figure 5 is a schematic diagram of a state in which the tension-free sensory balloon is connected to an air injection device according to an embodiment of the present invention.

Figure 6 is a relative dimensional view of various parts connected to the air injection device of an embodiment of the tension-free sensory balloon of the present invention.

In the picture: 1 tension-free sensory balloon, 2 neck, 3 catheter, 4 tee tube, 5 tee switch, 6 air injection port, 7 air injection device, 11 small bag, 12 hollow tube, 13C type guide Rod.

Detailed ways

The present invention will be further explained below with reference to the examples and drawings, but this is not intended to limit the scope of protection of the present application.

A tension-free sensory balloon (see Figure 1) of the present invention includes: a hollow tube 12 and a plurality of small bags 11. The plurality of small bags 11 are arranged axially around the hollow tube. The hollow tube is provided with a small The sacs have the same number of holes, and the inside of each sac is connected to the inside of the hollow tube through the holes; one end of the hollow tube 12 is closed, the other end is open, and the open end is connected to the catheter, and the small sacs are filled with air or water through the hollow tube. .

Multiple small sacs are close to each other, but there are gaps. Each small sac is fixed on the hollow tube. A connecting tube is provided at the corresponding position of the small sac and the hole on the hollow tube, so that the small sac can be connected with the inside of the hollow tube. The small sacs are connected and can be fixed on the hollow tube. All the sacs are evenly distributed along the circumferential direction without overlapping each other, forming a spherical and conical structure as a whole, such as the shape of a garlic head.

Preferably, the large-diameter ends of all the sacs are fixed on a fixed piece, and the fixed piece is fixed to the hollow tube; the small-diameter ends of the sacs are closely attached to the hollow tube.

Furthermore, the number of the small capsules is 3-5. The arrangement of multiple small capsules can interact with the human body in multiple directions respectively during use, and the force is more uniform.

Furthermore, the small sacs have an arc-shaped angle after filling, and the volume of each small sac is fixed. The wall surface of the small sacs has no tension and a certain degree of flexibility, and can fluctuate with the intestinal wall, and has a shape-following effect. When the air or water injection reaches a small level, After the volume of the bag is set, the volume of the small bag will not change if you continue to inject air or water, that is, it will not keep changing like a balloon made of rubber.

The tension-free sensory balloon also includes a C-shaped guide rod 13. One end of the C-shaped guide rod 13 has a C-shaped frame. The C-shaped frame has a C-shaped opening. The C-shaped opening is stuck in the catheter at the connection position of the hollow tube and the catheter. On the top, the other end of the C-shaped guide rod 13 is a hard rod, the length of the hard rod is about 150-180mm, the diameter of the hard rod is smaller than the outer diameter of the C-shaped frame, and the hard rod is fixedly connected to the end face of the C-shaped frame as a whole.

The tension-free sensory balloon also includes a sleeve (not shown in the figure). The sleeve is placed on the outer surface of multiple small sacs to store all the small sacs as a whole. The sleeve is inserted from the front end (i.e., when entering the human body) One end) starts to gradually cover the small bag toward the side where the C-shaped guide rod 13 is located, so that it is in a compressed state. The end of the sleeve ends near the C-shaped frame of the C-shaped guide rod 13, and the sleeve is tightly attached to the C-shaped frame. , after reaching the position, twitch the C-shaped guide rod 13 backwards and pull it out together with the casing, then open the C-shaped frame, remove the C-shaped guide rod 13, and then inflate all the small bags through the hollow tube. Or fill it with water for relevant testing or training.

Preferably, all sachets are in a stored state when not inflated with air or water. When used, the open end of the hollow tube is connected to the flexible conduit 3, and the C-shaped frame partially wraps the conduit 3 and is docked with the end of the hollow tube. The C-shaped guide The hard rod of the rod 13 is arranged parallel to the length direction of the catheter 3 to assist the tension-free feeling balloon 1 in extending into the expansion site, and can effectively withdraw after being extended into place.

The device using the tension-free sensory balloon of the present invention is a tension-free anorectal proprioceptive testing and training device, which includes:

Tension-free sensory balloon 1. The balloon body is made of tension-free polypropylene material. The length of the balloon body is 80mm. The hard rod of the C-shaped guide rod is long enough, about 15-18cm, to ensure that the balloon is completely inserted. In the anorectal area, the balloon has a large expansion space, and the tension-free feeling balloon 1 will expand evenly after being injected with air or water, and the set volume is 800-1100ml;

Neck 2, the proximal end is connected to the tension-free sensory balloon 1, and the distal end is connected to the catheter 3. The diameter of the neck gradually narrows from the connection point of the tension-free sensory balloon 1, and the distal diameter is 0.6-0.8cm, and is connected to the catheter 3. The diameter is the same or slightly larger. After the medical thin wire is tied to the middle part of the balloon neck, the distal end is turned over to cover the tied thin wire, which not only strengthens the binding effect, but also reduces the friction of the ligating wire on the intestinal wall;

Catheter 3 is made of medical rubber material, with a diameter of 0.2cm and a catheter length of 30-50cm, which is satisfactory for patients to operate independently;

The tee tube 4 is made of medical polyethylene material and connects the catheter 3 and the air injection tube opening 6.

Three-way switch 5 is made of medical polyethylene material;

The air injection tube mouth 6 is made of medical polyethylene material;

The gas injection device 7 is a medical disposable sterile spiral mouth syringe with a specification of 20-100ml.

The proximal end of the catheter 3 is connected to the tension-free sensory balloon, and after being firmly connected through the neck 2, it is tied and reinforced with No. 2 medical surgical sutures. The distal end of the catheter 3 is connected to the tee tube 4, and the other two tee tubes 4 are end, one end is connected to the rotary switch 5, and the other end is connected to the gas injection pipe mouth 6. During operation, the gas injection pipe mouth 6 is connected to the gas injection device 7. Generally, a 50ml medical disposable syringe is used. The patient needs to expose the buttocks, properly lubricate the tension-free sensory balloon, and insert the tension-free sensory balloon from the anus to the ampulla of the rectum. After the air injection device 7 draws out 50 ml of air, connect the air injection tube orifice 6, and open the three-way switch 5 to make the three The proximal and distal connecting parts of the tube 4 are connected (that is, the tube 3 and the gas injection device 7 are connected). Slowly push the syringe needle handle of the gas injection device 7 to inject gas. If a large amount of gas is needed, the three-way switch can be closed first. 5. Remove the syringe of the gas injection device 7, extract air again in the same way, connect the gas injection pipe port 6 again, and then open the three-way switch 5, slowly inject gas. The switch operation is simple and flexible, and the gas injection volume is accurate. The tension-free sensory balloon incorporated into the anus is inflated slowly and without tension in the anorectal cavity. After reaching a certain volume, the patient will experience an initial sensation. The gas injection volume at this time is scientific and objective data that is closer to the patient's physiological state. , the balloon fills and expands without tension in the intestinal lumen, which more realistically restores the physiological process of human feces storage. When the initial feeling occurs, the inflation volume at this time is an objective value with more clinical significance. If you continue to perform treatment training, when the initial feeling appears, stay for 5-10 seconds to allow the patient to fully experience the initial feeling of inflating, and then continue to inflate slowly. Stop inflating when the patient gradually feels the sensation of defecation, and the patient can fully experience defecation under inflating. After 5-10 seconds of feeling, turn on the switch to deflate. After deflating, rest for 1 minute and complete 1 cycle of inflation feeling training. Sensory training is performed 1-2 times a day, with about 10 cycles each time. Gradually increase or decrease the amount of gas injection according to the effect. Each training session lasts about 10-20 minutes, and a course of treatment lasts for 2 weeks. The patient's diagnosis is clear, the treatment is symptomatic, and the training method is correct. Generally, 1-2 courses of treatment are effective.

The tension-free feeling balloon is long enough, and the volume capacity after opening is large enough to ensure that the balloon body expands without tension in the intestinal lumen after inflation.

The mouth of the gas injection tube 6 is made of hard polyethylene material, and the mouth of the tube is connected to the gas injection device (7) in a spiral shape, which is a medical disposable sterile spiral mouth syringe. The screws at both ends are tightened, and the mouth is made of polyethylene to ensure that it can withstand repeated use. pressure, the spiral joint is tight and not easy to loosen and leak, the operation is simple and sensitive, and it is economical and affordable.

Patients empty their bowels before testing and training. Check whether the tension-free sensory balloon, catheter, tee tube and other devices are intact. The tension-free sensory balloon is not damaged, the catheter is not twisted or discounted, the connections of various parts are not loose, and the inflation is normal. , check for air leakage. During training, you can sit, lie down, or stand. The patient takes off his pants to expose his buttocks, and takes a semi-squatting or side-lying position. The operator wears disposable latex gloves. The balloon end of the catheter is lubricated with an appropriate amount of lubricating oil and inserted into the anus to the ampulla of the rectum to a depth of about 7-10cm. The tension-free sensory balloon is inserted along the rectal direction, and is assisted by a C-shaped guide rod and cannula to prevent the balloon body from clustering or turning over, bending, and twisting. Close the three-way switch 5 (i.e., the ventilation switch knob). After pumping 50ml of gas into the syringe, connect the gas injection nozzle, open the three-way switch 5, and slowly inject gas. When the patient has an initial feeling, this gas injection volume value is scientific and objective data that is closer to the patient's physiological state. Turn off the three-way switch 5 to stop inflating, hold it for 5-10 seconds to enhance the sensory experience, and then continue to inflate slowly. When the patient feels a bowel movement , close the three-way switch 5 to stop inflating, hold it for 5-10 seconds again, intensify the feeling experience, then deflate, and rest for 1 minute. Repeat the circuit training 10 times. For patients with weak sensation or inability to defecate, the inflation volume should be gradually reduced from the maximum perceived volume; for patients with sensitive sensation, the inflation volume should be gradually increased from the minimum perceived volume. The training should be carried out 1-2 times a day, 10-20 minutes each time, and a course of treatment lasts for 2 weeks, under the guidance of a doctor or as directed. Compliance training is carried out step by step, so that the patient's proprioceptive sense is gradually awakened and the patient's functions are gradually restored.

For the dilation treatment of anal stenosis and anastomotic stenosis after anorectal surgery or trauma, the tension-free dilation property allows the balloon to fill with the natural space in the intestinal cavity without causing strong expansion of the wound, anastomosis, and stenosis. The patient's pain is reduced, and the clinical effect is obvious after repeated expansion. During the expansion treatment, the tension-free sensory balloon can be incorporated as above, followed by slow air injection. After the initial sensation is stimulated, the air injection is stopped and the air is expanded for 15-20 minutes, twice a day, for a course of 2 weeks. The amount of gas injection is gradually increased as the symptoms are relieved until the symptoms of stenosis are relieved.

For compliance testing of anorectal manometry using this tension-free sensory balloon component, only the tension-free sensory balloon is connected to the anorectal manometry, and the properties of the tension-free sensory balloon are used to measure the anorectal manometry. The collection compliance of the instrument, its collection method and operation are the content of anorectal manometry and do not involve the content of this patent, so this article will not introduce it. Compared with traditional balloons, the rectal compliance measured by tension-free balloons is more accurate and reliable.

This patent breaks through the limitations of traditional tension balloons. The design of the tension-free balloon allows the test to more closely simulate the physiological stool storage process of the human body. It is also simple to operate and easy for patients to perform daily rehabilitation training. Through planned training, the initial anorectal sensation is awakened, the anorectal defecation sensation is adjusted, the nerve pathways of the anorectal sensation are restored, and the recovery of anorectal sensory abnormality is promoted. It is suitable for patients with anorectal and pelvic floor diseases, especially patients with abnormal anorectal sensory function due to outlet obstruction and constipation. It is also suitable for the dilation treatment of anal stenosis and anastomotic stenosis.

The parts not described in the present invention are applicable to the existing technology.

Claims (6)

1. A tension-free sensory balloon, characterized in that it is used for tension-free anorectal proprioceptive testing and training, anorectal compliance testing, or for use in anal stenosis or anastomotic stenosis after colorectal surgery, It includes: a hollow tube and a plurality of small sacs. The plurality of small sacs are arranged axially around the hollow tube. The hollow tube is provided with the same number of holes as the small sacs. The interior of each small sac is connected to the center through the holes. The hollow tubes are connected internally; one end of the hollow tube is closed, the other end is open, and the open end is connected to the catheter; the small sac is made of tension-free material; Multiple small sacs are close to each other, but there are gaps. Connecting tubes are provided at corresponding positions of the small sacs and the holes on the hollow tube, so that the small sacs can communicate with the inside of the hollow tube, and the small sacs can be fixed on the hollow tube. On the top, all the small sacs are evenly distributed along the circumferential direction without overlapping each other, forming a spherical and conical structure as a whole, and the small sacs are filled with air or water through the hollow tube; All vesicles are generally in the shape of a garlic head; It can more realistically simulate the process of defecation, stimulate and awaken anorectal proprioception, and promote the recovery of defecation function; The tension-free sensory balloon also includes a C-shaped guide rod. One end of the C-shaped guide rod has a C-shaped frame. The C-shaped frame has a C-shaped opening. The C-shaped opening is stuck on the catheter at the connection position between the hollow tube and the catheter. The other end of the C-shaped guide rod is a hard rod. The length of the hard rod is 150-180mm. The diameter of the hard rod is smaller than the outer diameter of the C-shaped frame. The hard rod is fixedly connected to the end face of the C-shaped frame as a whole; The tension-free sensory balloon also includes a sleeve, which is sleeved on the outer surface of a plurality of small sacs. The end of the sleeve terminates near the C-shaped frame of the C-shaped guide rod, and the sleeve is closely attached to or fixed on the C-shaped guide rod. On the frame; all small bags are stored when not filled with air or water. When in use, the open end of the hollow tube is connected to the flexible conduit. The C-shaped frame partially wraps the conduit and is docked with the end of the hollow tube. The C-shaped guide rod The rigid rod is arranged parallel to the length of the catheter. 2. The tension-free sensory balloon according to claim 1, characterized in that the sum of the volumes of all the sacs is 800-1100 mL, and the length of the sacs is 70-90 mm. 3. The tension-free sensory balloon according to claim 1, characterized in that the large-diameter ends of all small sacs are fixed on a fixed piece, and the fixed piece is fixed to the hollow tube; the small-diameter ends of the small sacs are tightly Attached to the hollow tube. 4. The tension-free sensory balloon according to claim 1, characterized in that the number of said small balloons is 3-5. 5. A tension-free sensory balloon device, characterized in that the tension-free sensory balloon device uses the tension-free sensory balloon described in any one of claims 1-4. 6. A tension-free anorectal proprioception testing and training device, characterized in that the tension-free anorectal proprioception testing and training device includes: The tension-free sensory balloon according to claim 1, the body part of the tension-free sensory balloon is made of tension-free polypropylene material, In the neck, the proximal end is connected to the tension-free sensory balloon, and the distal end is connected to the catheter. The diameter of the neck gradually narrows from the connection point of the tension-free sensory balloon, which is equivalent to the diameter of the catheter. After the middle part of the neck of the balloon is tied with a medical thin wire , the distal part is turned over to cover the ligating thin wire; Catheter, made of medical rubber material; Tee tube, made of medical polyethylene material, connects the catheter and the infusion tube mouth. Three-way switch, made of medical polyethylene material; The air injection tube mouth is made of medical polyethylene material; The gas injection device is a medical disposable sterile spiral mouth syringe; The gas injection pipe opening is connected to the gas injection device.