CN204106661U - A kind of multi-functional Excreta drainage system of adjustable negative pressure - Google Patents

Abstract

The utility model relates to a multifunctional excrement drainage device with adjustable negative pressure, comprising a drainage tube, a high-filling and low-pressure liquid-filled balloon fixing device arranged at the front end of the drainage tube, and a fixing device arranged at the end of the drainage tube The anti-fouling and anti-reflux tube connecting device, the excrement collector with adjustable negative pressure connected to the anti-fouling and anti-reflux tube connecting device is arranged in parallel with the drainage tube and the front end is connected to the high filling low A balloon fluid-filling catheter connected to the pressure fluid-filled balloon fixing device, with a controllable fluid-filling device at the end, arranged in parallel with the drainage tube, with the front end opening at the top of the front end of the drainage tube, and a controllable fluid-filling catheter at the end. The enema injection catheter of the drug device creates a fully closed excrement drainage collection system, which can not only reduce the perianal skin damage of patients, reduce infection, secondary pollution and odor, but also have functions such as stool dilution, bowel cleansing, and enema. Drug therapy and other clinical treatment functions to improve the efficiency of diagnosis and treatment.

Description

A multifunctional excrement drainage device with adjustable negative pressure

technical field

The utility model relates to the technical field of medical devices, in particular to a multifunctional excrement drainage device with adjustable negative pressure, which can be used for intestinal lavage treatment and excrement drainage.

Background technique

Fecal incontinence is a common problem that needs to be solved urgently in current medical care, and there is no better method of fecal management. Long-term bedridden critically ill patients in the hospital are prone to diarrhea and frequent diarrhea, and their stools are mostly watery and contain more bacteria, which can easily irritate the perianal skin, causing redness, pain, eczema and other inflammations. Easily lead to ulceration, bedsores and infection. For the closed environment of the hospital ICU and the home nursing ward, not only the bed sheets are polluted, but also serious environmental and air pollution are caused by the overflow of feces, which brings great difficulties to the nursing work and increases the risk of cross-infection in the hospital. At present, ostomy bags, diapers and other instruments that are commonly used are all placed on the perianal area to receive feces, which aggravates the above problems and requires a large amount of nursing supplies when nursing patients with diarrhea, increasing the financial burden of patients.

At present, some clinics temporarily use disposable tracheal catheters or urinary catheters for simple assembly for stool drainage, which has the following defects: 1. The instruments used are not in the scope of their functional application, the materials are excellent, and they are accompanied by severe hemorrhoids or dysphoria. When the author uses it, it is very easy to cause hemorrhoids to compress and necrosis to cause bleeding, or to damage the intestinal wall when extubating. 2. It is not possible to create a fully enclosed system environment during use, and the tube is often detached to cause various pollution problems. It is necessary to regularly check whether the tube is secure. 3. Patients have obvious foreign body discomfort during use, so that they cannot tolerate it for a long time. 4. Inhibit the function of the anal sphincter and cannot be left in place for a long time. 5. When there is a plugging phenomenon, the extubation has to be performed, which will pollute the environment again. 6. It does not have other treatment and use functions at the same time, such as enema drug treatment, retention enema, etc., and it cannot force the softened stool to be discharged. It cannot be used for elderly patients with long-term constipation or patients who cannot defecate spontaneously due to various reasons. hospital or home care.

The Chinese Utility Model Patent No. 201320222768.4 discloses a defecation and drainage device, but the above problems cannot be completely solved because of the following defects: 1. The intestinal fixation device is an air bag and the air intake tube has no inflation control display device. High inflatable capacity will lead to high pressure and cause compressive necrosis of the intestinal wall. At the same time, it is easy to leak air and cannot be monitored, resulting in shedding and feces leakage. 2. There is a pre-tube at the front end of the balloon, and there is an annular residual dead zone where feces cannot be removed. 3. The tube bag is divided into sections, with a plug-in design, easy to fall off, and many interfaces are easy to leak and pollute. 4. It needs to close the tube first, then use the guide rod to guide the pipeline into the anus, then remove the guide rod, and then take over the tube and bag. The operation is complicated and cumbersome. 5. It cannot be handled when the pipe is blocked, and there is no negative pressure function. 6. The structure is a single defecation function, without multiple uses such as diluting feces, enema treatment, and forced defecation.

Utility model content

The purpose of this utility model is to provide a multi-functional excrement drainage device with adjustable negative pressure in view of the deficiencies of the prior art, so as to completely solve the defecation of critically ill patients and patients who have been bedridden for a long time and cannot take care of themselves. Incontinence care issues, at the same time, it has a variety of clinical treatment functions such as stool dilution, enema drug treatment, retention enema, etc., as well as the function of forced defecation for patients who do not have the ability to defecate spontaneously.

The utility model realizes this purpose through the following technical solutions:

A multifunctional excrement drainage device with adjustable negative pressure, comprising:

Drainage tubes are used to guide excrement from the body out of the body;

The high-filling and low-pressure liquid-filled balloon fixation device is set on the top of the front end of the drainage tube, and is used to place and fix it on the ampulla of the rectum to create a fully enclosed drainage system environment and prevent the drainage tube from falling off;

The anti-fouling and anti-backflow tube connection device is arranged at the end of the drainage tube;

The excrement collector with adjustable negative pressure is connected to the anti-fouling and anti-reflux tube connection device arranged at the end of the drainage tube, and the cavity of the excrement collector with adjustable negative pressure communicates with the drainage tube;

The balloon filling catheter is arranged in parallel with the drainage tube, the front end of the balloon filling catheter communicates with the high-filling and low-pressure filling balloon fixing device, and the end of the balloon filling catheter is provided with a controllable filling device ;

The enema drug injection catheter is arranged in parallel with the drainage tube, the front end of the enema drug injection catheter is opened on the top of the front end of the drainage tube, and the end of the enema drug injection catheter is provided with a controllable drug delivery device.

Wherein, the balloon filling catheter is connected in parallel with the drainage tube and is arranged close to the inner wall of the drainage tube, the end of the balloon filling catheter is led out from the inner wall of the middle part of the drainage tube and extends, and the controllable liquid filling device is set inside There is an anti-backflow check valve.

Further, it also includes a liquid pressure control bag for judging the filling state of the balloon, the liquid pressure control bag is arranged near the controllable liquid filling device, and communicates with the balloon filling catheter and the controllable liquid filling device respectively .

Wherein, the enema drug injection catheter is connected in parallel with the drainage tube and is arranged close to the inner wall of the drainage tube, the end of the enema drug injection catheter is led out from and extends from the inner wall of the middle part of the drainage tube, and the inside of the controllable drug delivery device is provided with a protective device. Reverse flow check valve.

Further, it also includes a liquid medicine pressure control bag for judging the pressure state of the intestinal injection, the liquid medicine pressure control bag is arranged close to the controllable drug delivery device, and is connected with the enema drug injection catheter and the controllable drug delivery device respectively. The drug device is connected.

Wherein, the high-filling and low-pressure fluid-filled balloon fixing device is arranged in the circumferential direction of the outer wall at the top of the front end of the drainage tube, and the inner wall of the front end of the drainage tube is provided with an insertion tube for easy insertion of the drainage tube into the body. The length of the tube is comparable to the length of the balloon.

Further, the outer wall of the drainage tube is provided with a depth indicating scale and a depth warning mark near the high-fill and low-pressure liquid-filled balloon fixing device.

Further, it also includes an anti-bending support sleeve sleeved on the drainage tube, a closed pigging valve that can be clamped on the drainage tube, and a precision liquid injection device that can be used in conjunction with the controllable liquid filling device and the controllable drug delivery device. The anti-folding support sleeve is in the shape of a slightly curved short tube, and there are multiple rows of shallow grooves on the outside of the slightly curved position.

Wherein, the anti-fouling and anti-backflow tube connection device is provided with a one-way valve for preventing excrement from backflowing from the excrement collector with adjustable negative pressure to the drainage tube, and the anti-fouling and anti-backflow tube is connected The device is equipped with a connection locker, the inner wall of which is a threaded closed interface, and the connection locker and the drainage tube are non-fixed and integrated, and the drainage tube will not rotate when the connection locker is rotated distortion.

Wherein, the excrement collector with adjustable negative pressure includes an organ-type structure on the upper part that can create negative pressure inside the container, a cavity for containing excrement on the lower part, and a drain tube connected to the top. The connection port, the suction one-way valve negative pressure column that can create micro-negative pressure, the hanging parts that are convenient for hanging are arranged on both sides of the shoulder, and the capacity indicating scale is set on the outer surface of the cavity.

Compared with the prior art, the beneficial effects of the utility model are:

1. Create a fully closed excrement drainage and collection system, which can not only safely and reliably solve a series of problems and complications caused by patients' fecal incontinence, but also protect the perianal skin damage of patients, reduce infection and secondary pollution, and effectively It helps to reduce the occurrence of skin complications, reduce odor, improve nursing efficiency, and help create a good ward environment with good comfort and high compliance.

2. It is easy to operate, easy to master, and convenient to place; it greatly reduces the workload of nursing care and economic costs.

3. The overall engineering design that meets the requirements of human anatomy and the selection of safe and comfortable materials can protect the intestinal wall and maintain the physiological functions of the sphincter for long-term use.

4. The combination of multiple scientifically designed components enables the device to have various clinical treatment functions such as stool dilution, bowel cleansing, enema drug treatment, etc., to improve the efficiency of diagnosis and treatment.

5. Unique excrement collector with adjustable negative pressure. Its adjustable negative pressure structure design ensures smooth drainage of feces, effectively prevents tube blockage, and solves the problems of involuntary defecation such as coma, paralysis, and long-term bed rest.

Description of drawings

Fig. 1 is a structural schematic diagram of a multifunctional excrement drainage device with adjustable negative pressure of the present invention.

Fig. 2 is a structural schematic diagram of the controllable liquid filling device and the controllable drug delivery device of the present invention.

Fig. 3 is a schematic diagram of installation of the anti-folding support sleeve of the present invention.

Fig. 4 is a structural schematic diagram of the closed pigging valve of the present invention.

Fig. 5 is a schematic structural view of the precision liquid injector of the present invention.

Fig. 6 is a schematic structural view of the excrement collector with adjustable negative pressure of the present invention.

In the figure: 1-drainage tube; 2-high filling and low pressure liquid-filled balloon fixing device; 3-anti-fouling and anti-reflux tube connection device; 4-excretion collector with adjustable negative pressure; 5-balloon filling Liquid catheter; 6-controllable liquid filling device; 7-enema injection catheter; 8-controllable drug delivery device; 9-sealing cap; 10-liquid pressure control bag; 11-medicine liquid pressure control bag; 12-depth warning Sign; 13-organ structure; 14-cavity; 15-connection port; 16-suction one-way valve negative pressure column; 17-suspension parts; 18-anti-folding support sleeve; 19-closed pigging valve ; 20-collar; 21-precision liquid injector; 22-depth indication scale; 23-capacity indication scale; 24-placement tube.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in detail.

Example:

As shown in Figures 1 to 5, a multifunctional excrement drainage device with adjustable negative pressure includes:

The drainage tube 1 is used to lead the excrement in the human body out of the body;

The high-filling and low-pressure liquid-filled balloon fixation device 2 is set at the front end of the drainage tube 1, and is used to insert into the ampulla of the rectum to create a fully enclosed drainage system environment and prevent the drainage tube 1 from falling off;

The anti-fouling and anti-backflow pipe connecting device 3 is arranged at the end of the drainage pipe 1;

The excrement collector 4 with adjustable negative pressure is connected to the anti-fouling and anti-reflux pipe connection device 3 arranged at the end of the drainage tube 1, and the inner cavity of the excrement collector 4 with adjustable negative pressure is connected with the drainage tube 1 connected;

The balloon filling catheter 5 is arranged in parallel with the drainage tube 1, the front end of the balloon filling catheter 5 communicates with the high filling and low pressure liquid filling balloon fixing device 2, and the end of the balloon filling catheter 5 is provided with Controllable liquid filling device 6;

The enema drug injection catheter 7 is arranged in parallel with the drainage tube 1 , the front end of the enema drug injection catheter 7 is opened on the top of the front end of the drainage tube 1 , and the end of the enema drug injection catheter 7 is provided with a controllable drug delivery device 8 .

The working principle of the multifunctional excrement drainage device of the present utility model is as follows:

(1) When it is necessary to perform fully-sealed and non-polluting excrement drainage for patients with fecal incontinence, first wipe the insertion part of the drainage tube 1 and the high-filling and low-pressure liquid-filled balloon fixing device 2 in the deflated state with lubricant Afterwards, it is inserted into the ampulla of the rectum through the anus, and then the controllable liquid filling device 6 connected to the balloon liquid filling catheter 5 is used to use the precision liquid injector 21, and liquids such as normal saline for injection are injected into the liquid filling device 6 through the balloon liquid filling catheter 5 according to the prescribed dose. In the high-filling low-pressure fluid-filled balloon fixation device 2 described above.

At this time, the balloon is inflated and inflated, and fixed on the connecting ampulla between the anus and the rectum to create a fully enclosed drainage system environment and prevent the drainage tube 1 from slipping out of the anus, so that the feces and other excrements of patients with fecal incontinence can be well discharged. Discharge along the drainage tube 1 into the excrement collector 4 with adjustable negative pressure. The water-filled balloon fixation device ensures high filling and low pressure. At the same time, the balloon and the drainage tube 1 are made of soft material, which has good biocompatibility. Both of them can prevent the infection of the sphincter caused by long-term compression, so The above-mentioned high-filling and low-pressure liquid-filled balloon fixation device 2 can make the drainage tube 1 stay between the anus and the rectum for a long time, and create a fully closed excrement drainage system.

Both sides of excreta collector 4 tops that can adjust negative pressure are provided with suspension parts 17, and it can hang collector on as the guardrail position of hospital bed, and described suspension parts 17 comprise the two hanging holes that are connected to the collector top both sides. A suspension belt of Velcro material; when the excrement collector 4 with adjustable negative pressure is hung on a certain position of the hospital bed, the anti-folding support sleeve can be placed under the condition that the pipeline is bent due to hanging. The pipe 18 moves to this position so as to prevent bending and blocking the pipe. The anti-folding support sleeve 18 is in the shape of a slightly curved short pipe, and there are multiple rows of shallow grooves on the outside of the slightly curved position. When the excrement collector 4 with adjustable negative pressure is hung on a certain position of the hospital bed, the anti-bending support sleeve can be moved to this position in case of twists and turns caused by the pipeline to prevent blockage. At the same time, the multi-row shallow grooves on the outside can increase the hanging force of the casing in the tortuous position, so as to keep the casing from moving.

(2) The closed pigging valve 19 can prevent the pollution and inconvenience caused by excrement outflow when changing the collector, or provide a temporarily closed system environment when the patient needs to be treated with enema, retention enema, etc. . It is divided into upper and lower layers, one end of the upper and lower layers is connected, and the other end has a snap-fit locking device. The inner sides of the upper and lower layers of the closed pigging valve 19 are all provided with row-type airtight butt joint grooves that can match when fastened. When the excrement collector 4 needs to be replaced or the patient needs to be treated with enema, retention enema, etc., the closed pigging valve 19 on the drainage tube 1 can be moved to a suitable position to buckle and lock to close the drainage tube 1, Temporarily block the discharge of excreta such as feces. Simultaneously, when drainage pipe 1 is not drained smoothly or the excrement in the pipe needs to be cleaned to the collector, the closed pigging valve 19 can be moved to the required position, and the closed pigging valve 19 can be pushed towards the direction of the collector after the closed valve is fastened, and the excrement will Pushed into the excrement collector 4.

The closed pigging valve 19 is also provided with a frenulum, one end of the frenulum is connected to the closed pigging valve 19, and the other end is provided with a collar 20 which can be sleeved on the drainage pipe 1, so that the closed pigging valve 19 It can be slidably arranged on the drainage pipe 1. When the closed pigging valve 19 needs to be used, the closed pigging valve 19 can be conveniently placed in the desired position by simply pulling the collar 20, which is not only convenient and practical, but also can prevent the closed pigging valve The pigging valve 19 is lost, which is practical.

(3) In the case that the patient needs to be treated with stool dilution, enema administration, retention enema, etc., the precision injector 21 can be used to connect the controllable drug delivery device 8 of the enema drug injection catheter 7, and the liquid such as medicine can be injected according to the therapeutic dose. Inject into the patient's rectum through the enema injection catheter 7 .

(4) When the patient's excrement drainage tube 1 is not smooth or cannot defecate spontaneously due to various reasons, the adjustable negative pressure suction function of the collector can be used according to actual needs to achieve appropriate forced defecation.

(5) When it is necessary to record and evaluate the excretion volume of the patient, accurate data can be provided for condition observation through the scale indicator mark on the excrement collector 4 with adjustable negative pressure.

Wherein, the balloon filling catheter 5 is connected in parallel with the drainage tube 1 and is arranged close to the inner wall of the drainage tube 1, and the end of the balloon filling catheter 5 is drawn out and extends from the inner wall of the middle part of the drainage tube 1, and the controllable An anti-backflow check valve is arranged inside the liquid filling device 6 .

Further, it also includes a liquid pressure control bag 10 for judging the filling state of the balloon, the liquid pressure control bag 10 is arranged near the controllable liquid filling device 6, and is connected with the balloon liquid filling catheter 5 and the controllable liquid filling catheter respectively. The liquid filling device 6 communicates. The controllable liquid filling device 6 can be used to inject physiological saline or other liquids that meet the material requirements into the filling catheter by using the precision liquid injector 21 and so on, so as to inflate and expand the balloon fixing device. Wherein, when a liquid such as physiological saline is injected into the balloon fixation device, the liquid pressure control balloon 10 will simultaneously appear to be filled and swollen at the same level as the balloon fixation device, and the balloon can be judged through the liquid pressure control balloon 10 . The level of filling and expansion in the fixation device can be checked at any time to see if there is any leakage of the balloon fixation device, so as to ensure that the balloon fixation device is fixed and reliable during the whole process of use. When the filling of the balloon fixation device reaches the requirement, the injection of fluids such as physiological saline can be stopped. At the same time, the controllable liquid filling device 6 is also equipped with an anti-backflow one-way valve, so as to ensure that the liquid is poured into the balloon fixing device through the filling catheter in one direction without overflowing, so that the first pressure and the balloon fixing device are maintained. The filling level is synchronized.

Wherein, the enema injection catheter 7 is connected in parallel with the drainage tube 1 and is arranged close to the inner wall of the drainage tube 1, and the end of the enema injection catheter 7 is drawn and extended from the inner wall of the middle part of the drainage tube 1, and the controllable drug administration The device 8 is provided with an anti-backflow one-way valve inside.

Further, it also includes a liquid medicine pressure control capsule 11 for judging the pressure state of the intestinal injection. The liquid medicine pressure control capsule 11 is arranged close to the controllable drug delivery device 8, and is connected with the enema injection catheter 7 respectively. , The controllable drug delivery device 8 is connected. Through the precision liquid injector 21, etc., the drug solution needed for clinical diagnosis and treatment can be injected into the enema drug injection catheter 7 through the controllable drug delivery device 8, and then the drug solution is passed through the enema drug injection catheter 7 at the opening at the top of the drainage tube 1 Pour into the intestines. Wherein, when the liquid medicine is poured into the enema injection catheter 7, the pressure control capsule 11 of the liquid medicine will simultaneously appear to be filled and expanded at the same level as the intestinal hydraulic pressure, and the pressure of the medicine in the intestine can be judged by the pressure control capsule 11. When the liquid pressure control capsule 11 is over-inflated and the injection resistance increases, it should be considered whether there has been blockage or over-perfusion. For example, the liquid pressure control capsule 11 is not inflated enough and the injection resistance is not obvious Leakage should be taken into account to ensure effective and reliable enema treatment or stool dilution. At the same time, the controllable drug delivery device 8 is also equipped with an anti-reflux one-way valve, so as to ensure that the medicinal liquid is poured into the intestine in one direction through the enema drug injection catheter 7 without overflowing, so that the medicinal liquid pressure control capsule 11 and the Enema administration keeps filling levels synchronized.

Wherein, the high-filling and low-pressure liquid-filled balloon fixing device 2 is arranged in the circumferential direction of the outer wall at the top of the front end of the drainage tube 1, and the inner wall of the front end of the drainage tube 1 is provided with an insertion tube 24 to facilitate the insertion of the drainage tube 1 into the body. , to facilitate the placement of the drainage tube 1. The balloon is inflated and fixed on the inner wall of the anus in a liquid-filled manner, which can ensure the high filling and low pressure of the balloon fixing device, that is, realize the airtight fixation that fully fits in the anus, and avoid causing the intestinal wall to be compressed and damaged, so as to achieve The effect of long-term safe drainage.

Further, a depth warning mark 12 is provided on the outer wall of the drainage tube 1 close to the high-filling low-pressure fluid-filled balloon fixing device 2, and a depth indicating scale 22 is marked on the outer wall from the bottom of the balloon to the front end of the drainage tube 1, and There are obvious indicators to guide the positioning of the catheter and the safe insertion depth of the drainage tube 1. When the insertion depth of the drainage tube reaches the depth warning mark 12, the continued insertion of the drainage tube 1 should be stopped to ensure the safety of the patient.

Wherein, the anti-fouling and anti-backflow tube connecting device 3 is provided with a one-way valve for preventing excrement from backflowing from the excrement collector 4 with adjustable negative pressure to the drainage tube 1, and the anti-fouling and anti-backflow tube A connection locker is provided on the connection device 3, the inner wall of the connection locker is a threaded closed interface, and the connection locker and the drainage tube 1 are in a non-fixed integrated form, when the connection locker is rotated The drainage tube 1 will not rotate and twist. When the drainage tube 1 is connected to the excrement collector 4 with adjustable negative pressure, put the anti-fouling and anti-reflux tube connecting device 3 on the outlet at the top of the excrement collector 4 with adjustable negative pressure, and then tighten the tube The connection device is rotated to complete the connection between the drainage tube 1 and the excrement collector 4 with adjustable negative pressure, and the drainage tube 1 does not rotate and twist during the connection process. When the collector needs to be replaced, the anti-fouling and anti-backflow pipe connection device 3 can be unscrewed from the mouth of the excrement collector 4 with adjustable negative pressure, and there is no need to rotate the collector full of excrement. Due to the existence of the one-way valve, the tube connection device can be used to open the tail of the drainage tube 1 to keep the inner wall free from excrement pollution when the collector is replaced, which is convenient and quick.

Wherein, the excrement collector 4 with adjustable negative pressure includes an organ-like structure 13 that can create negative pressure inside the container at the upper part, a cavity 14 for containing excrement at the lower part, and a drainage tube 1 and a drainage tube 1 at the top, respectively. The connected connection port 15, the suction one-way valve negative pressure column 16 that can create a slight negative pressure, and the suspension parts 17 that are convenient for hanging are arranged on both sides of the shoulder. 4 Suspension straps of two Velcro materials in the hanging holes on both sides of the upper part, which can be used to hang the excrement collector collector 4 on the hospital bed guardrail.

When the patient’s excrement in the drainage tube 1 is not smooth or is unable to defecate spontaneously due to various reasons, the organ on the upper half of the excrement collector 4 with adjustable negative pressure can be pressed moderately from top to bottom according to actual needs Type structure 13, then the air in the excrement collector 4 with adjustable negative pressure will be discharged through the negative pressure column 16 of the suction check valve. Negative pressure will be generated inside the 14. At this time, the suction effect of negative pressure will realize an adjustable and appropriate forced defecation, ensure smooth collection of excrement, effectively remove residues in the pipeline, and prevent backflow of excrement. An organ-type structure 13 is provided at the fixed connection between the suction check valve negative pressure column 16 and the excrement collector 4 with adjustable negative pressure, and an upward position of the organ-type structure 13 is provided with a negative pressure suction check valve. Pressure column 16, the one-way valve can ensure that the gas inside the collector is discharged to the outside, while the outside gas cannot enter the inside of the collector. When the excrement collector 4 with adjustable negative pressure collects relatively full or needs micro-negative pressure to adjust the drainage efficiency, the organ-like structure 13 of the suction check valve negative pressure column 16 can be pressed several times moderately to extract the inside of the collector Air to achieve adjustable negative pressure drainage.

The above-mentioned embodiments only express some implementations of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the present utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (10)

1. A multifunctional excrement drainage device with adjustable negative pressure, characterized in that it comprises: Drainage tubes are used to guide excrement from the body out of the body; The high-filling and low-pressure liquid-filled balloon fixation device is set on the top of the front end of the drainage tube, and is used to place and fix it on the ampulla of the rectum to create a fully enclosed drainage system environment and prevent the drainage tube from falling off; The anti-fouling and anti-backflow tube connection device is arranged at the end of the drainage tube; The excrement collector with adjustable negative pressure is connected to the anti-fouling and anti-reflux tube connection device arranged at the end of the drainage tube, and the cavity of the excrement collector with adjustable negative pressure communicates with the drainage tube; The balloon filling catheter is arranged in parallel with the drainage tube, the front end of the balloon filling catheter communicates with the high-filling and low-pressure filling balloon fixing device, and the end of the balloon filling catheter is provided with a controllable filling device ; The enema drug injection catheter is arranged in parallel with the drainage tube, the front end of the enema drug injection catheter is opened on the top of the front end of the drainage tube, and the end of the enema drug injection catheter is provided with a controllable drug delivery device. 2. The multifunctional excrement drainage device with adjustable negative pressure according to claim 1, characterized in that, the balloon filling catheter is connected in parallel with the drainage tube and is arranged close to the inner wall of the drainage tube, and the balloon is filled The end of the liquid conduit is drawn out and extended from the inner wall of the middle part of the drainage pipe, and an anti-backflow one-way valve is arranged inside the controllable liquid filling device. 3. The multifunctional excrement drainage device with adjustable negative pressure according to claim 2, further comprising a liquid pressure control capsule for judging the filling state of the balloon, the liquid pressure control capsule is arranged near the The controllable liquid filling device is connected with the balloon liquid filling catheter and the controllable liquid filling device respectively. 4. The multifunctional excrement drainage device with adjustable negative pressure according to claim 1, characterized in that, the enema drug injection catheter is connected in parallel with the drainage tube and is arranged close to the inner wall of the drainage tube, and the enema drug injection catheter The end of the tube is led out and extended from the inner wall of the middle part of the drainage tube, and an anti-reflux one-way valve is arranged inside the controllable drug delivery device. 5. The multifunctional excrement drainage device with adjustable negative pressure according to claim 4, characterized in that it also includes a liquid medicine pressure control capsule for judging the pressure state of the intestinal injection, and the pressure control capsule of the liquid medicine The capsule is arranged close to the controllable drug delivery device, and communicates with the enema drug injection catheter and the controllable drug delivery device respectively. 6. The multifunctional excrement drainage device with adjustable negative pressure according to claim 1, characterized in that, the high-filling and low-pressure liquid-filled balloon fixing device is arranged at the outer wall circumference at the top of the front end of the drainage tube, so that The inner wall of the front end of the drainage tube is provided with an insertion tube to facilitate the insertion of the drainage tube into the body. 7. The multifunctional excrement drainage device with adjustable negative pressure according to claim 6, characterized in that, the outer wall of the drainage tube is provided with a depth indicating scale and a depth warning near the high filling and low pressure liquid-filled balloon fixing device sign. 8. The multi-functional excrement drainage device with adjustable negative pressure according to claim 1, characterized in that, the anti-fouling and anti-reflux tube connection device is provided with a device for preventing excrement from self-adjustable negative pressure. The excrement collector flows back to the one-way valve of the drainage tube. The anti-fouling and anti-backflow tube connection device is provided with a connection locker. The inner wall of the connection locker is a threaded closed interface, and the connection is locked at the same time. The device and the drainage tube are non-fixed and integrated, and the drainage tube will not rotate and twist when the locking device is rotated. 9. The multifunctional excrement drainage device with adjustable negative pressure according to claim 1, characterized in that it also includes an anti-folding support sleeve sleeved on the drainage tube, and a closed pigging that can be clamped on the drainage tube The valve and the precision liquid injector that can be used in conjunction with the controllable liquid filling device and the controllable drug delivery device respectively, the anti-folding support sleeve is a slightly curved short tubular shape, and there are multiple rows of shallow grooves on the outside of the slightly curved position. 10. The multifunctional excrement drainage device with adjustable negative pressure according to any one of claims 1-9, characterized in that, the excrement collector with adjustable negative pressure includes an upper part for creating negative pressure inside the container The organ-like structure, the lower part is a cavity for containing excrement, the top is respectively provided with a connection port connected with a drainage tube, and a suction one-way valve negative pressure column that can create a slight negative pressure, and the shoulders on both sides are provided with The suspension part is convenient for hanging, and the cavity is provided with a volume indicating scale for indicating the volume of the solution.