CN114343764A - Intestinal cavity vacuum auxiliary closing device for treating gastric cancer postoperative anastomotic fistula - Google Patents

Abstract

The invention discloses an intestinal cavity vacuum-assisted closing device for treating postoperative anastomotic leakage of gastric cancer, comprising a gastric tube. The side wall is provided with a suction through hole adjacent to the suction end, the outer wall of the gastric tube is provided with a sponge body covering the suction through hole, and the sponge body is connected with a medium-temperature water-soluble film that shrinks it toward the gastric tube; For connecting to a warm water supply to dissolve a mesophilic water-soluble membrane inserted into the patient. The intestinal vacuum-assisted closure device for treating anastomotic fistula after gastric cancer surgery of the invention uses a medium-temperature water-soluble film to shrink the fluffy corpus cavernosum, so as to reduce the outer diameter of the device, and it is convenient to directly insert the gastric tube into the esophagus from the nasal cavity, and the operation is convenient At the same time, it relieves the pain of patients, helps to promote the recovery of patients, shortens the treatment cycle and reduces the cost of treatment, and reduces the workload of related nursing staff.

Description

An intraluminal vacuum-assisted closure device for the treatment of anastomotic leakage after gastric cancer surgery

technical field

The invention relates to the technical field of medical devices, in particular to an intestinal cavity vacuum-assisted closing device for treating postoperative anastomotic leakage of gastric cancer.

Background technique

Digestive tract reconstruction is required after gastric cancer surgery. Due to the technical limitations of anastomosis and the poor basic physical conditions of patients, esophagojejunostomy fistulas often occur, and saliva, sputum and digestive juices easily flow into the thoracic mediastinum through the fistula, causing acute diffuse honeycombing Histitis, empyema, acute hemorrhage and cardiopulmonary failure after vascular corrosion in severe cases, and even death. Therefore, whether the pus, tissue necrosis, digestive juice and secretions around the fistula can be drained is an important factor in controlling postoperative infection, and effectively closing the fistula and promoting the growth of the surrounding granulation tissue is an anastomotic leakage, which makes postoperative patients truly A key measure of healing.

To this end, Sasha Still, Marissa Mencio, Estrelita Ontiveros, James Burdick, and Steven G. Leeds published an endoscopic technique in Primary and Rescue Endoluminal VacuumTherapy in the Management of Esophageal Perforations and Leaks, June 7, 2018. vacuum assisted closure Endoscopic vacuum assisted closure system (hereinafter referred to as EVAC system), which needs to be placed under general anesthesia and endotracheal intubation, using a 16-Fr nasogastric tube (there are 3-4 lateral holes in the anterior segment of the gastric tube) Inserted from one side of the nasal cavity, the gastroscope grasping forceps pulled out the head end of the gastric tube from the oral cavity, and cut the polyurethane sponge material into a cylindrical shape with a length of 5-8cm and a diameter of less than 3-4cm, and the vascular forceps penetrated the cylindrical polyurethane sponge material. A tunnel is made, and the head end of the gastric tube is pulled through the cavernous body, and the head and tail of the cavernous body are sutured and fixed with the gastric tube respectively, and the vacuum-assisted closure device is completed; The central point of the corpus cavernosum is located at the fistula, and the end of the gastric tube is connected to a negative pressure suction machine. The intestinal cavity around the fistula is sucked to form a vacuum. The fluid around the fistula can be inhaled into the gastric tube through the cavernous body and the side hole of the gastric tube, and then excreted through negative pressure suction to isolate the fistula. Close the fistula to promote the repair of the tissue around the fistula and make the fistula heal quickly. Since the surface of the corpus cavernosum will adsorb necrotic tissue, the pores in the sponge will be blocked, and the suction efficiency will decrease. Therefore, the endoscope needs to be replaced once every 3 days under general anesthesia, and after 5-6 times (15-18 days) of replacement, gastrointestinal angiography After it is clear that there is no contrast agent overflow, it is determined that the fistula is healed.

However, in the above-mentioned EVAC system, the fluffy sponge is too large in size and has a rough surface, so it cannot be directly inserted through the nasal cavity. At the same time, intubation under general anesthesia is required (otherwise the patient will be very painful and easy to suffocate), which increases the difficulty of operation; Not only that, patients with anastomotic leakage after gastric cancer surgery have poor physical fitness. Repeated general anesthesia and gastroscope in a short period of time are stressful blows to the patients, which are not conducive to the recovery of the patients, prolong the hospitalization time, increase the hospitalization expenses and the nursing staff's burden. burden.

Therefore, it is necessary to improve the intestinal auxiliary closure device for anastomotic leakage after gastric cancer surgery in the prior art.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the defects existing in the prior art, and to provide an operation for the treatment of gastric cancer that is convenient for the implantation operation, relieves the pain of the patient, helps to promote the recovery of the patient, shortens the treatment period, reduces the treatment cost and relieves the burden of the related nursing staff. Intestinal vacuum-assisted closure device for posterior anastomotic fistulas.

In order to achieve the above technical effect, the technical scheme of the present invention is as follows: an intestinal vacuum-assisted closure device for treating postoperative anastomotic leakage of gastric cancer, comprising a gastric tube, the two ends of the gastric tube are respectively a suction end and a connection for connecting The negative pressure end of the negative pressure device, the side wall of the stomach tube is provided with a suction through hole adjacent to the suction end, and the outer wall of the stomach tube is provided with a sponge covering the suction through hole, so The sponge body is connected with a medium-temperature water-soluble film that shrinks it toward the gastric tube; the negative pressure end is also used for connecting a warm water supply device to dissolve the medium-temperature water-soluble film inserted into the patient's body.

Preferably, in order to ensure safety and reduce harm to the patient's body, the material of the medium-temperature water-soluble film is polyvinyl alcohol.

Preferably, in order to avoid the dissolution of the medium-temperature water-soluble film during the insertion of the gastric tube, and at the same time, it is convenient to add clear water or saline at a suitable temperature for dissolution, and to avoid high-temperature water flow scalding human tissue, the dissolution temperature of the medium-temperature water-soluble film is 45-55 ° C.

Preferably, in order to reduce the frictional force received when the gastric tube slides and facilitate the moving operation of the gastric tube, a lubricating layer is provided on the side of the medium-temperature water-soluble film facing away from the cavernous body.

Preferably, in order to reduce the size of the sponge body in the contracted state to reduce the overall diameter of the device, facilitate the movement of the gastric tube, and reduce the difficulty of operation, the medium-temperature water-soluble film includes a pressing portion covering the sponge body, the The pressing part is arranged in close proximity to the gastric tube.

Preferably, in order to further reduce the difficulty of moving the gastric tube and facilitate the operation, the gastric tube includes a suction section and a negative pressure section arranged in sequence along the direction of its axis, and the outer diameter of the suction section is smaller than the diameter of the negative pressure section. outer diameter, the suction through hole is arranged on the suction segment.

Preferably, in order to take away viscous sputum, secreted tissue and tissue debris, increase the suction efficiency of negative pressure, prolong the use time of the device, and perform local bacteriostasis, so as to promote the healing of the fistula tissue, reduce the treatment cost, and ease the nursing care. The work burden of personnel, the outer wall of the stomach tube is connected with a drip tube that is consistent with its axis line, and the two ends of the drip tube are respectively a water injection end and a water outlet end, and the water outlet end is arranged next to the sponge body and faces The sponge body and the water injection end are used for connecting to a physiological saline supply device.

Preferably, in order to facilitate nutritional support into the intestine, reduce complications of parenteral nutrition, and reduce treatment costs, a nutrition tube that is consistent with its axis is arranged immediately outside the stomach tube, and the two ends of the nutrition tube are respectively input The input end is used to connect the nutrient solution supply device, and the output end is arranged on the side of the suction end away from the negative pressure end.

Preferably, in order to reduce the deviation and sliding of the feeding tube during the replacement of the gastric tube, a hollow guide wire is pierced through the inner side of the gastric tube and/or the feeding tube, and one end of the guide wire is connected to the inner side of the feeding tube. The suction end is adjacent to and communicated with the air bag.

Preferably, in order to facilitate precise control of the insertion depth of the guide wire, a scale is provided on the guide wire.

To sum up, compared with the prior art, the intestinal vacuum-assisted closure device for the treatment of anastomotic leakage after gastric cancer surgery of the present invention utilizes a medium-temperature water-soluble film to shrink the fluffy corpus cavernosum to reduce the outer diameter of the device. It is convenient to insert the gastric tube directly into the esophagus from the nasal cavity, which is convenient to operate and relieves the pain of the patient, helps to promote the recovery of the patient, shortens the treatment period and reduces the treatment cost, and reduces the workload of the relevant nursing staff.

Description of drawings

Fig. 1 is the structural representation of embodiment 1;

Fig. 2 is the enlarged view of A part of Fig. 1;

Fig. 3 is the exploded schematic diagram of Fig. 1;

Fig. 4 is the structural representation of embodiment 2;

Fig. 5 is the sectional view of embodiment 2 gastric tube suction section;

Fig. 6 is the structural representation of embodiment 3;

Fig. 7 is the structural representation of embodiment 4;

Fig. 8 is the structural representation of embodiment 5;

Fig. 9 is the structural representation of embodiment 6;

10 is a schematic diagram of the use state when the stomach tube is replaced in Example 6;

FIG. 11 is an enlarged view of part B of FIG. 10;

12 is a schematic diagram of the use flow of Embodiment 6;

In the figure: 1. Gastric tube, 1a. Suction end, 1b. Negative pressure end, 1c. Suction section, 1d. Negative pressure section, 1-1. Suction hole, 2. Sponge body, 3. Water-soluble film at medium temperature, 3a. pressing part, 4. lubricating layer, 5. drip tube, 5a. water injection end, 5b. water outlet end, 6. nutrition tube, 6a. input end, 6b. output end, 7. guide wire, 7a. gastric tube Positioning guide wire, 7b. Feeding tube positioning guide wire, 8. Balloon, 9. Scale, a. Nasal cavity, b. Oral cavity, c. Esophagus, d. Stomach, e. Fistula.

Detailed ways

The specific embodiments of the present invention will be further described below with reference to the accompanying drawings and embodiments. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and cannot be used to limit the protection scope of the present invention.

Example 1

As shown in FIG. 1 , the intestinal cavity vacuum-assisted closure device for treating postoperative anastomotic leakage of gastric cancer according to Example 1 includes a gastric tube 1, which is a 16Fr gastric tube, and the two ends of the gastric tube 1 are suction ends 1a respectively. and the negative pressure end 1b, wherein the suction end 1a is inserted into the patient, and the negative pressure end 1b is used to connect the negative pressure device; the side wall of the gastric tube 1 is provided with a number of suction through holes 1-1, and the suction through holes 1-1 are connected with the suction The end 1a is arranged adjacently, and the outer wall of the stomach tube 1 is also provided with a corpus cavernosum 2. The corpus cavernosum 2 is a circular column shape, and its circumferential inner wall is fixedly connected with the circumferential outer wall of the stomach tube 1 to cover the corpus cavernosum on the stomach tube 1. 2. The sponge body 2 is provided with a medium-temperature water-soluble film 3, and the material of the medium-temperature water-soluble film 3 is polyvinyl alcohol, and the medium-temperature water-soluble film 3 is used to shrink the sponge body 2 to the gastric tube 1, and its dissolving temperature is 50° C. The soluble film 3 includes a pressing portion 3a covering the sponge body 2, and the pressing portion 3a is arranged in close proximity to the side wall of the gastric tube 1; .

In the intestinal cavity vacuum-assisted closure device of this embodiment, the medium-temperature water-soluble film 3 adopts a closed-loop design, and the cavernous body 2 is contracted toward the gastric tube 1, so that the cavernous body 2 is changed from a natural fluffy state to being surrounded by the outer wall of the gastric tube 1. The compressed state of the medium-temperature water-soluble film 3 reduces the size of the sponge 2, thereby helping to reduce the vacuum-assisted closing device in the intestinal cavity; on this basis, the pressing portion 3a of the medium-temperature water-soluble film 3 It is arranged next to the side wall of the gastric tube 1, which further reduces the overall thickness of the cavernous body 2, so that the gastric tube 1 is directly inserted into the patient's body through the patient's nasal cavity, and the pain of the patient during insertion is reduced while avoiding the nasal cavity. Asphyxiation caused by insertion.

Compared with the EVAC system of the prior art, the fluffy corpus cavernosum is directly placed, which requires not only the insertion of digestive endoscope grasping forceps, but also intubation under general anesthesia. The stent size of the device is reduced to facilitate insertion, and the surface roughness of the Chinese water-soluble film 3 is far lower than the surface roughness of the fluffy sponge body 2, thus making the surface of the device smoother, easier to insert into the body, easy to operate, and has It is beneficial to reduce the pain of the patient during the implantation process, reduce the amount of anesthetic used for the patient, thereby reducing the number of stress blows, which is beneficial to the recovery of the patient, shortens the hospitalization time and treatment costs, and reduces the workload of the relevant nursing staff.

During the treatment, the gastric tube 1 is inserted from the nasal cavity, and is inserted into the stomach along the esophagus, so that the front end of the medium-temperature water-soluble film 3 outside the cavernous body 2 (that is, the end connected to the suction end 1a) slides through the fistula, and the medium-warm water The center point of the cavernous body 2 inside the soluble film 3 is located at the fistula; since the outside of the cavernous body 2 is covered by the medium-temperature water-soluble film 3 with a dissolving temperature of 50°C, and the temperature of the internal organs and body fluids of the human body is lower than 50°C, the During the insertion process, the medium temperature water-soluble film 3 will not be dissolved and damaged; and after the insertion is completed, the negative pressure end 1b is connected to the warm water supply device, and the temperature is greater than the dissolution temperature of the medium temperature water-soluble film 3 in the gastric tube 1 through the warm water supply device. The temperature of the warm water can be selected at 50-55°C, and the warm water penetrates into the sponge body 2 through the suction hole 1-1 and contacts with the medium-temperature water-soluble film 3, so that the medium-temperature water-soluble film 3 dissolves, while avoiding the temperature of the warm water. Too high can cause damage to the organs in the patient's body. After dissolving, the outside of the sponge body 2 loses the force of compressing and contracting it, so that the sponge body 2 is restored to a fluffy state. At this time, the negative pressure end 1b is connected to the negative pressure device, and the gastric tube 1 is evacuated, so that the sponge body 2 is evacuated. Negative pressure is generated at the suction hole 1-1, so that the lumen collapses and is in close contact with the cavernous body 2, and vacuum is continuously generated to generate negative pressure, so that the liquid around the fistula (including the warm water that was previously used to dissolve the medium-temperature water-soluble film 3) ) is sucked into the stomach tube 1 through the cavernous body 2 and the suction through hole 1-1, then flows in the stomach tube 1, and is discharged from the body through the negative pressure end 1b, so as to isolate the fistula and keep the negative pressure at the same time. The suction makes the tissue outside the fistula and the intra-abdominal cavity fit the fistula under negative pressure, and promotes the repair of the tissue around the fistula, so that the fistula heals quickly.

In this embodiment, polyvinyl alcohol (PVA for short) is selected as the material for making the medium-temperature water-soluble film 3, which has the characteristics of excellent compactness, and the film made of polyvinyl alcohol has high flexibility and avoids wrapping and pressing the sponge 2. It is ruptured and damaged by tension, and the surface of the film is smooth, which reduces the frictional force received during the movement of the gastric tube 1, which facilitates the insertion or extraction of the gastric tube 1, and makes the operation more convenient. Not only that, the polyvinyl alcohol film is also a kind of Odorless, non-toxic and harmless water-soluble material to ensure the safety of treatment. In order to tightly wrap the sponge 2 with the polyvinyl alcohol film so that it is close to the outer wall of the gastric tube 1, the medium-temperature water-soluble film 3 can be bonded by ultrasonic sealing to form the structure shown in FIG. 1 .

It should be noted that, in this embodiment, the temperature of the medium-temperature water-soluble film 3 can also be selected within 45-55° C. to avoid the medium-temperature water-soluble film 3 being dissolved by body fluids during the insertion process of the gastric tube 1. After the filling is completed, it is only necessary to pass warm water at the dissolving temperature into the gastric tube 1 to dissolve the medium-temperature water-soluble film 3, so that the corpus cavernosum 2 is opened and fluffy, while avoiding scalding to the organs in the patient; the shape of the corpus cavernosum 2 is also Other shapes can be selected, only need to ensure that it covers the suction through hole 1-1 of the gastric tube 1, and the medium-temperature water-soluble film 3 can tension the cavernous body 2 to the outer wall of the gastric tube 1 to reduce the overall diameter size of the device; in addition , the first implantation can be performed under X-ray, the gastric tube 1 is inserted to the anastomosis, the contrast agent is injected through the gastric tube 1, and the location of the anastomotic leakage is confirmed to ensure that after dissolving the medium-temperature water-soluble film 3, the sponge The center of body 1 is at the fistula.

Example 2

As shown in FIG. 4 and FIG. 5 , the intraluminal vacuum-assisted closure device for the treatment of anastomotic leakage after gastric cancer surgery in Example 2 is based on Example 1, with the difference that the side of the mesophilic water-soluble film 3 facing away from the cavernous body 2 A lubricating layer 4 is provided, and the lubricating layer 4 is a paraffin layer; the gastric tube 1 includes a suction section 1c and a negative pressure section 1d arranged in turn along the direction of its axis, and the suction through hole 1-1 is arranged on the suction section 1c, wherein the suction section 1c is provided. The outer diameter of section 1c is the same as that of 10Fr gastric tube, and the outer diameter of negative pressure section 1d is the same as that of 16Fr gastric tube, so that the outer diameter of suction section 1c is smaller than that of negative pressure section 1d.

Since the medium-temperature water-soluble film 3 is a polyvinyl alcohol film, it has good oil resistance, and after the lubricating layer 4 made of paraffin is coated on its outer side (ie, the side facing away from the sponge 2), it will not dissolve. The outer surface of the medium-temperature water-soluble film 3 is made smoother, which is more convenient for the gastric tube 1 to move in the human body, making the operation more convenient; and the outer diameter of the suction section 1c of the gastric tube 1 is smaller than the outer diameter of the negative pressure section 1d, which is more conducive to the gastric tube. 1 for the placement operation.

Example 3

As shown in FIG. 6 , the intraluminal vacuum-assisted closure device for treating anastomotic leakage after gastric cancer surgery in Example 3 is based on Example 1, except that the gastric tube 1 is a 10Fr gastric tube, and the outer wall of the gastric tube 1 is connected with a The drip tube 5 that is consistent with the axis line of the stomach tube 1, the two ends of the drip tube 5 are respectively the water injection end 5a and the water outlet end 5b, wherein the water injection end 5a is used to connect the physiological saline supply device, and the water outlet end 5b is set next to the sponge 2 And towards the sponge body 2.

In this embodiment, the size of the gastric tube 1 is reduced, so that a water drop tube 5 is attached to the stomach tube 1, and the water injection end 5a of the water drop tube 5 is connected to the physiological saline supply device. After the warm water-soluble film 3 is dissolved, the normal saline supply device drips the normal saline intermittently through the drip tube 5, and the normal saline falls on the cavernous body 2, which can effectively take away the viscous sputum, secretions and tissue debris, thereby increasing the amount of water. The negative pressure suction efficiency prolongs the service life of the device, reduces the frequency of replacing the gastric tube 1, and at the same time promotes the healing of the tissue near the fistula, thereby reducing the cost of treatment. Of course, antibiotics and tissue growth factors can also be instilled at the same time through the drip tube, so as to achieve local bacteriostasis and promote fistula healing, so that patients can recover after surgery.

Example 4

As shown in FIG. 7 , the intestinal cavity vacuum-assisted closure device for the treatment of postoperative anastomotic leakage of gastric cancer of Example 4 is based on Example 3, the difference is that a feeding tube 6 that is consistent with its axis is arranged immediately outside the gastric tube 1 , the nutrition tube 6 is an 8Fr nutrition tube, the two ends of the nutrition tube 6 are respectively the input end 6a and the output end 6b, the input end 6a is used to connect the nutrient solution supply device, and the output end 6b is arranged at the suction end 1a away from the negative pressure end 1b. On one side, the distance between the output end 6b and the suction end 1a is 30-40 cm.

Since patients with anastomotic leakage cannot eat orally, enteral nutrition is required; however, in this embodiment, by attaching a nutrition tube 6 to the stomach tube 1, and injecting nutrient solution through the nutrition tube 6, continuous enteral nutrition support is realized, thereby achieving continuous enteral nutrition support. Reduce parenteral nutrition complications and costs.

Example 5

As shown in FIG. 8 , the intestinal cavity vacuum-assisted closure device for the treatment of postoperative anastomotic leakage of gastric cancer in Example 5 is based on Example 4. The difference is that the inner sides of the gastric tube 1 and the feeding tube 6 are both provided with hollow guide tubes. Wire 7, one end of the guide wire 7 is adjacent to the suction end 1a and communicated with the air bag 8, the guide wire 7 is provided with a scale 9, and the scale 9 is adjacent to the negative pressure end 1b; The stomach tube positioning guide wire 7a inside the stomach tube 1 and the nutrition tube positioning guide wire 7b penetrated through the inside of the nutrition tube 6 are provided.

During the treatment process, the gastric tube 1 of the vacuum-assisted closure device in the intestinal cavity needs to be replaced regularly. During the replacement process, the gastric tube 1 needs to be pulled out, which will easily cause the nutrition tube 6 to slide and shift its position. The wire 7, that is, the gastric tube positioning guide wire 7a and the nutrition tube 7b positioning guide wire respectively pass through the inner side of the gastric tube 1 and the nutrition tube 6, so that after the balloon 8 is exposed from the end, the inside of the balloon 8 is inflated through the guide wire 7, so that The balloon 8 is inflated against the cavity wall of the human esophagus, so as to play a positioning role and prevent the guide wire 7 from sliding in position. Then, the gastric tube 1 is pulled out from the nasal cavity, and the guide wire 7 with a fixed position is passed through the feeding tube 6, that is, there is friction between the feeding tube positioning guide wire 7b and the feeding tube 6, thereby reducing the amount of movement of the feeding tube 6. Even if the position of the nutrition tube 6 is displaced, since the position of the nutrition tube positioning guide wire 7b is fixed, it is only necessary to push the nutrition tube 6 to move along the nutrition tube positioning guide wire 7b, and the nutrition tube 6 can be returned to its original position; The guide wire 7, that is, after the gastric tube 1 outside the gastric tube positioning guide wire 7a is drawn out, the new gastric tube 1 can be inserted along the gastric tube positioning guide wire 7a, so the two guide wires 7 both play an anchoring role. function, and the gastric tube 1 and the nutrition tube 6 can be positioned respectively.

After the replacement of the gastric tube 1, the air in the balloon 8 is removed through the guide wire 7, and the gastric tube positioning guide wire 7a and the nutrition tube positioning guide wire 7b can be pulled out of the gastric tube 1 and the nutrition tube 6 respectively. 1. Negative pressure vacuum suction can be continuously performed, and enteral nutrition support is provided to the patient by using the feeding tube 6, which is beneficial to the patient's recovery, shortens the treatment cycle, and reduces the hospitalization time and treatment cost.

The scale on the guide wire 7 is convenient for the nursing staff to know the current relative position of the guide wire 7 and the feeding tube 6 or the gastric tube 1 to ensure that the balloon 8 extends out of the feeding tube 6 or the gastric tube 1 .

Example 6

As shown in FIGS. 9-12 , the intraluminal vacuum-assisted closure device for the treatment of anastomotic leakage after gastric cancer surgery in Example 6 is based on Example 5, except that one guide wire 7 is provided, and the guide wire 7 is passed through the stomach. The inner side of the tube 1, and the end of the guide wire 7 adjacent to the suction end 1a is communicated with a balloon 8.

In this embodiment, one guide wire 7 and one air bag 8 are provided, which reduces the number and thus reduces the cost. When the air bag 8 is inflated through the guide wire 7, the inflated air bag 8 can squeeze the feeding tube 6 against the intestine. so as to achieve the anchoring effect on the feeding tube 6 and avoid preventing the position of the feeding tube 6 from being displaced during the process of replacing the gastric tube 1 .

As shown in Figure 12, using the auxiliary closing device of this embodiment mainly includes the following steps:

(A) Insert the gastric tube 1 and the feeding tube 6 from the patient's nasal cavity a, and control the center of the cavernous body 2 on the gastric tube 1 to be near the esophagus c fistula e, and the output end 6b of the feeding tube 6 is the suction end. 1a is 30-40cm away from the side of negative pressure end 1b;

(B) Warm water is injected into the gastric tube 1, and the warm water penetrates into the sponge body 2 through the suction through hole 1-1 and contacts with the medium-temperature water-soluble film 3, so that the medium-temperature water-soluble film 3 is dissolved, and the sponge body 2 loses its function of shrinking After the force, return to the fluffy state, at this time, the cavernous body 2 covers the fistula e, and the gastric tube 1 is connected with a negative pressure device to vacuumize, so that the fluid around the fistula e is discharged through the gastric tube, and the tissues outside the fistula e and the abdominal cavity are evacuated. Fit the fistula e under negative pressure, promote the repair of the tissue around the fistula e, and make the fistula heal quickly;

(C) When the gastric tube 1 needs to be replaced (usually after the gastric tube 1 is used for 3 days), the guide wire 7 is passed through the gastric tube 1, and the balloon 8 is passed through the suction end 1a of the gastric tube 1;

(D) Inflate the balloon 8 through the guide wire 7, so that the balloon 8 is inflated against the wall of the esophagus c-cavity while squeezing the nutrition tube 6, so that the nutrition tube 6 abuts on the wall of the esophagus c-cavity, and the guide wire 7 and the c-cavity wall are completed. The fixation of the nutrition tube 6;

(E) The gastric tube 1 is pulled out from the nasal cavity a. Since the guide wire 7 and the feeding tube 6 are squeezed and fixed by the inflated balloon 8 during this process, there will be no positional deviation;

(F) Put the suction end 1a of the new gastric tube 1 on the guide wire 7, and slide the gastric tube 1 along the guide wire 7, so that the gastric tube 1 is inserted from the nasal cavity a until the center of the cavernous body 2 on the gastric tube 1 in the vicinity of the fistula e;

(G) The air in the balloon 8 is discharged through the guide wire 7, so that after the balloon 8 is contracted, the guide wire 7 is pulled out from the gastric tube 1;

(H) Inject warm water into the gastric tube 1 to dissolve the medium-temperature water-soluble film on the gastric tube 1, and the corpus cavernosum 2 is restored to fluffy. The device is used to perform a vacuuming operation, so as to discharge the liquid near the fistula e, and at the same time, enteral nutrition support can be carried out through the feeding tube 6;

When the gastric tube 1 needs to be replaced again, the operations from steps (C) to (H) are repeated in sequence until the fistula e tissue recovers. After the patient recovers, the nutrition tube 6 and the gastric tube 1 can be pulled out.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the technical principles of the present invention, several improvements and modifications can be made. These improvements and modifications It should also be regarded as the protection scope of the present invention.

Claims (10)

1. An intestinal vacuum-assisted closure device for treating postoperative anastomotic leakage of gastric cancer, comprising a gastric tube (1), wherein the two ends of the gastric tube (1) are respectively a suction end (1a) and a negative pressure connection The negative pressure end (1b) of the device, the side wall of the stomach tube (1) is provided with a suction through hole (1-1) adjacent to the suction end (1a), the stomach tube (1) is The outer wall is provided with a sponge body (2) covering the suction through hole (1-1), characterized in that: The cavernous body (2) is connected with a medium-temperature water-soluble film (3) that shrinks it toward the stomach tube (1); the negative pressure end (1b) is also used to connect a warm water supply device to dissolve the water-soluble membrane inserted into the patient's body. Medium temperature water soluble film (3). 2 . The intestinal cavity vacuum-assisted closure device for treating postoperative anastomotic leakage of gastric cancer according to claim 1 , wherein the material of the medium-temperature water-soluble film ( 3 ) is polyvinyl alcohol. 3 . 3. The intestinal cavity vacuum-assisted closure device for treating postoperative anastomotic leakage of gastric cancer according to claim 1, characterized in that: the dissolving temperature of the intermediate-temperature water-soluble film (3) is 45-55°C. 4. The intestinal cavity vacuum-assisted closure device for treating anastomotic leakage after gastric cancer surgery according to claim 1, characterized in that: the side of the intermediate-temperature water-soluble film (3) facing away from the cavernous body (2) A lubricating layer (4) is provided. 5. The intestinal cavity vacuum-assisted closure device for treating postoperative anastomotic leakage of gastric cancer according to claim 1, characterized in that: the intermediate-temperature water-soluble film (3) comprises a compression device covering the cavernous body (2) part (3a), the pressing part (3a) is arranged in close proximity to the gastric tube (1). 6. The intestinal cavity vacuum-assisted closure device for treating postoperative anastomotic leakage of gastric cancer according to claim 1, characterized in that: the gastric tube (1) comprises suction sections (1c) arranged in sequence along the direction of its axis line ) and a negative pressure section (1d), the outer diameter of the suction section (1c) is smaller than the outer diameter of the negative pressure section (1d), and the suction through hole (1-1) is arranged in the suction section (1c) )superior. 7. The intestinal cavity vacuum-assisted closure device for treating postoperative anastomotic leakage of gastric cancer according to claim 1, characterized in that: the outer wall of the gastric tube (1) is connected with a drip tube ( 5), the two ends of the drip pipe (5) are respectively a water injection end (5a) and a water outlet end (5b), and the water outlet end (5b) is arranged close to the sponge body (2) and faces the sponge body (2), the water injection end (5a) is used to connect a physiological saline supply device. 8. The intestinal cavity vacuum-assisted closure device for treating postoperative anastomotic leakage of gastric cancer according to claim 1, characterized in that: a feeding tube (6) that is consistent with its axis line is immediately adjacent to the outside of the stomach tube (1). ), the two ends of the nutrient tube (6) are respectively an input end (6a) and an output end (6b), the input end (6a) is used for connecting a nutrient solution supply device, and the output end (6b) is arranged at The suction end (1a) is away from the side of the negative pressure end (1b). 9. The intestinal cavity vacuum-assisted closure device for treating anastomotic leakage after gastric cancer surgery according to claim 7 or 8, characterized in that: the inner side of the gastric tube (1) and/or the feeding tube (6) A hollow guide wire (7) is threaded through, and one end of the guide wire (7) is adjacent to the suction end (1a) and communicated with an air bag (8). 10 . The intestinal cavity vacuum-assisted closure device for treating anastomotic leakage after gastric cancer surgery according to claim 9 , wherein a scale ( 9 ) is provided on the guide wire ( 7 ). 11 .

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