CN211935002U

CN211935002U - Drainage instrument used after digestive tract anastomosis

Info

Publication number: CN211935002U
Application number: CN202020207221.7U
Authority: CN
Inventors: 王冬; 胡涛; 李勇; 赵群; 范立侨; 张志栋; 赵雪峰; 檀碧波; 刘羽; 杨沛刚; 田园; 郭洪海; 刘洋; 崔平
Original assignee: Fourth Hospital of Hebei Medical University Hebei Cancer Hospital
Current assignee: Fourth Hospital of Hebei Medical University Hebei Cancer Hospital
Priority date: 2020-02-25
Filing date: 2020-02-25
Publication date: 2020-11-17
Anticipated expiration: 2030-02-25

Abstract

A drainage apparatus used after alimentary canal anastomosis, which comprises a drainage tube and a negative pressure suction structure, is characterized in that the drainage tube comprises an in-vivo drainage tube and an in-vitro drainage tube; the front end of the in-vivo drainage tube extends into the patient body and is divided into two slotted drainage tubes, and the two slotted drainage tubes comprise a drainage tube at an anastomotic opening positioned behind an anastomotic opening of an esophagus transplantation intestinal canal of the patient and a fossa drainage tube positioned at the fossa splenalis; the rear end of the internal drainage tube extends out of the body of the patient and is connected with the external drainage tube in a combined or integrated way; one end of the external drainage tube, which is far away from the internal drainage tube, is tightly connected with the negative pressure suction structure; the drainage tube in the body is placed in the body of a patient, one of the two drainage tubes with the slots is placed behind the anastomotic stoma of the esophageal transplantation intestinal tube, the other drainage tube is placed at the position of the splenic fossa, and the leakage liquid or the effusion liquid near the anastomotic stoma and in the splenic fossa is sucked out of the body of the patient through the negative pressure suction structure, so that the infection in the body of the patient is avoided.

Description

Drainage instrument used after digestive tract anastomosis

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to is a drainage apparatus for after alimentary canal anastomosis.

Background

For reflux esophagitis patients with esophageal resection, the jejunum or colon segment can be used as a substitute to reconstruct the digestive tract. According to the observation of histamine stimulation, the jejunum or colon is more resistant to acid pepsin digestion at the new site than the duodenum, and the transplanted jejunum retains not only its peristaltic form but also a segmental contraction of the intestine, similar to sphincter function. The intestinal wall is smooth muscle tissue, fatigue can not occur, and the physiological requirements of the reflux esophagitis patients can be met.

The traditional double-layer anastomosis method is mostly adopted for esophagus transplantation intestine section anastomosis, wherein one layer is full, and the other layer is wrapped. However, in recent years, many researchers have adopted a one-layer intermittent sewing method, which is also effective.

Esophageal graft-enterostomy is a serious complication. Once the anastomotic fistula is confirmed, the jejunum stoma is given maintenance nutrition; drainage of the thoracic cavity and negative pressure suction; the nasogastric tube continuously drains gastric juice, and the drained gastric juice is filled into the jejunum stoma every 2h 1 time to maintain the balance of digestive enzymes, water and electrolyte, namely the three-tube therapy. If the anastomotic fistula is large and is difficult to cure by the triple-tube therapy, the anastomotic excision of the esophagus-transplanted intestinal tube, the reocclusion of the esophagus-transplanted intestinal tube or the closure of the transplanted intestinal segment are carried out, the esophagus is pulled out from the neck incision, the empyema is treated firstly, the colon is replaced by the esophagus in the second stage, and the digestive tract is reconstructed.

However, at present, a drainage device which is effectively applied to an esophageal transplantation intestinal anastomotic stoma leakage in time does not exist clinically, the difficulty of drainage is increased particularly when the leakage liquid or the effusion liquid flows into the spleen fossa, if the leakage liquid or the effusion liquid is large in amount but cannot be drained out of the body in time, various complications can be caused, and the patient can die in serious cases.

The utility model discloses do not have the drainage device who in time effectively is applied to esophagus transplantation intestines tube anastomosis mouth hourglass to present clinic among the prior art, especially when weeping liquid or exudate flow in spleen nest department then increased the degree of difficulty of drainage, if weeping liquid or exudate volume are big but can not in time the drainage go out external, then can cause various complications, serious person can arouse the dead problem of patient, provides a drainage apparatus for the identical postoperative of alimentary canal.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides a drainage instrument used after the alimentary canal anastomosis.

A drainage apparatus used after alimentary canal anastomosis, which comprises a drainage tube and a negative pressure suction structure, is characterized in that the drainage tube comprises an in-vivo drainage tube and an in-vitro drainage tube; the front end of the in-vivo drainage tube extends into the patient body and is divided into two slotted drainage tubes, and the two slotted drainage tubes comprise a drainage tube at an anastomotic opening positioned behind an anastomotic opening of an esophagus transplantation intestinal canal of the patient and a fossa drainage tube positioned at the fossa splenalis; the rear end of the internal drainage tube extends out of the body of the patient and is connected with the external drainage tube in a combined or integrated way; one end of the external drainage tube, which is far away from the internal drainage tube, is tightly connected with the negative pressure suction structure; the drainage tube in the body is placed in the body of a patient, one of the two drainage tubes with the slots is placed behind the anastomotic orifice of the esophageal transplantation intestinal tube, the other drainage tube is placed at the position of the splenic fossa, and the leakage liquid or the effusion liquid near the anastomotic orifice and in the splenic fossa is sucked out of the body of the patient through the negative pressure suction structure, so that the infection in the body of the patient is avoided.

Furthermore, the rear ends of the drainage tube at the anastomotic opening and the spleen fossa drainage tube are intersected with an in-vivo fusion tube with a cylindrical main body; the drainage tube at the anastomotic opening, the fossa splenalis drainage tube and the fusion tube in the body form a complete drainage tube in the body, the drainage tube at the anastomotic opening timely drains the exudate or the exudate flowing out from the anastomotic opening, and the fossa splenalis drainage tube drains the liquid flowing into the fossa splenalis, so that the exudate or the exudate is comprehensively prevented from infecting the body of a patient.

Further, the drainage tube at the anastomotic opening is a circular arc drainage tube with a cylindrical main body, and the radian of the circular arc drainage tube is set to be 5/3 pi-17/9 pi; the corresponding angle of the arc-shaped drainage tube is 300-340 degrees, so that the open end of the arc-shaped drainage tube is not contacted with the whole body of the drainage tube in the body, the liquid in the body of a patient can be smoothly sucked, and the drainage tube at the anastomotic position can be well fixed in the body of the patient by pressing the drainage tube under the visceral organs.

Further, the head end of the drainage tube at the anastomosis opening is provided with a bullet-shaped bullet head tube which is integrally connected with the drainage tube at the anastomosis opening; the head end of the drainage tube at the anastomotic opening is convenient to pass through the gaps among viscera in the body.

Further, a supporting structure is arranged on the inner wall of the drainage tube at the anastomotic opening and is integrally connected with the inner wall of the drainage tube at the anastomotic opening; the arrangement can ensure the smoothness of the drainage tube at the anastomotic opening and avoid blockage.

Furthermore, the supporting structure is provided with supporting ribs, and the supporting ribs are provided with crisscross supporting ribs, the centers of which are not connected with crisscross supporting ribs arranged in a crisscross manner; the supporting ribs are made of medical silica gel materials; the arrangement can ensure that the drainage tube is not collapsed softly and is always in a smooth state, and the drainage tube has certain softness and can be bent.

Furthermore, the supporting rib starts from the joint of the bullet head pipe and the drainage pipe at the anastomotic opening and ends at the junction of the drainage pipe at the anastomotic opening and the drainage pipe of the spleen fossa.

Further, an absorbable bag capable of siphoning leaked liquid is arranged on the outer side of the drainage tube at the anastomosis port, and the drainage tube at the anastomosis port is wrapped by the absorbable bag in 360 degrees; the device has the function of siphon leakage liquid, and is beneficial to efficiently absorbing the leakage liquid.

Further, the absorbable pouch is made of a nano fiber material; the nano-fiber material can be degraded and absorbed by human body, and the degradation time is longer than the drainage time, which can meet the drainage requirement.

Furthermore, a flushing channel which is convenient for internal flushing is arranged in the center of the drainage tube at the anastomotic opening, and the direction of the flushing channel is the same as that of the drainage tube at the anastomotic opening; the flushing channel starts from the side wall of the in-vivo fusion tube and ends at the head end of the drainage tube at the anastomotic opening; a liquid inlet is arranged at the starting end of the flushing channel, and a liquid outlet is arranged at the terminating end of the flushing channel; when in use, flushing fluid is injected into the flushing channel through the fluid inlet, and flows out of the fluid outlet to enter the body of a patient for flushing, so as to avoid the leaked fluid from infecting other organs; or put into the flushing pipe from the liquid inlet, and the flushing liquid is injected into the flushing pipe to flush the body.

Furthermore, a liquid one-way valve for preventing the liquid in the body from entering the flushing channel is arranged at the termination end of the flushing channel, and the liquid one-way valve is integrally connected with the inner wall of the flushing channel; the arrangement ensures the unidirectional flow of liquid, and avoids the leakage liquid in the body from entering the flushing channel to further pollute the flushing channel and/or the flushing pipe.

Furthermore, a dustproof plug is arranged at the liquid inlet of the flushing channel to ensure that the flushing channel is not polluted; such an arrangement may ensure that sterility is maintained during transit or when not in use.

Furthermore, an elastic connecting rope is arranged at the top end of the dustproof plug, one end of the elastic connecting rope is integrally connected with the dustproof plug, and the other end of the elastic connecting rope is integrally connected with the outer side wall of the flushing channel; the elastic connection rope of this kind of setting is connected the dustproof stopper on washing the passageway, effectively avoids the dustproof stopper to lose.

Furthermore, the main body of the fossa splenalis drainage tube is semicircular, the head end of the fossa splenalis drainage tube is provided with the bullet head tube with the angle of 180 degrees, the supporting rib is arranged in the fossa splenalis drainage tube and is arranged into T-shaped supporting ribs arranged in a T shape, and the supporting rib is integrally connected with the inner wall of the fossa splenalis drainage tube; the head end of the spleen fossa drainage tube arranged in the way is convenient to penetrate through gaps among viscera, and the support ribs can ensure the smoothness of the spleen fossa drainage tube.

Further, longitudinal grooves are formed in the side walls between the drainage tube at the anastomosis opening and the supporting ribs of the spleen fossa drainage tube, and the length of each longitudinal groove is smaller than that of the drainage tube at the anastomosis opening and that of the spleen fossa drainage tube; the longitudinal grooves are convenient to absorb leaked liquid quickly.

Further, a connecting pipe for connecting the in-vivo fusion tube and the in-vitro drainage tube is arranged, one end of the connecting pipe is integrally connected with the in-vitro drainage tube, and the other end of the connecting pipe is inserted into the in-vivo fusion tube; the arrangement realizes the combined connection of the in-vivo drainage tube and the in-vitro drainage tube, when in use, the in-vivo drainage tube is firstly placed into the body of a patient, and then the in-vivo drainage tube and the in-vitro drainage tube are combined and connected, thereby solving the problem that the whole drainage tube is longer and inconvenient to operate.

Furthermore, the negative pressure suction structure is a negative pressure suction ball, the top end of the negative pressure suction ball is provided with a drainage port and an air outlet, and the external drainage tube is integrally connected with the drainage port.

Further, a liquid one-way valve is arranged at one end of the external drainage tube connected with the drainage port, and the liquid one-way valve is integrally connected with the inner wall of the external drainage tube; a gas one-way valve is arranged inside the gas outlet and is integrally connected with the inner wall of the gas outlet; the arrangement of the liquid one-way valve can ensure that the leakage liquid flows into the one-way flow direction of the negative pressure suction ball from the external drainage tube, and the arrangement of the gas one-way valve can ensure that the inside of the negative pressure suction ball is kept in a negative pressure state.

Further, the negative pressure suction ball is made of medical silica gel material; the operator holds the negative pressure suction ball with hands to lead the air in the negative pressure suction ball to be out from the air outlet, and the negative pressure suction ball is in a negative pressure state, thereby leading the leakage liquid in the body to be drained to the inside of the negative pressure suction ball.

Further, a liquid leakage container is arranged at the bottom of the negative pressure suction ball, and the liquid leakage container is connected with the negative pressure suction ball in a combined way and is communicated with the inside of the negative pressure suction ball; the arrangement ensures that the leaked liquid in the negative pressure suction ball flows into the leaked liquid container, thereby being convenient for measuring the amount of the leaked liquid.

Furthermore, an extension pipe with a cylindrical main body is arranged at the bottom of the negative pressure suction ball, external threads are arranged on the extension pipe, corresponding internal threads are arranged at the upper end of the liquid leakage container, and the negative pressure suction ball is connected with the liquid leakage container through a thread combination.

Furthermore, a switch for controlling the leakage liquid to enter the leakage liquid container is arranged in the extension pipe; when the leakage liquid container is filled with leakage liquid, the switch is adjusted to be in a closed state, and the leakage liquid in the negative pressure suction ball is prevented from flowing out to pollute the environment of a ward.

Furthermore, the switch is a spherical switch, the spherical switch comprises a sphere with a through channel in the center and a T-shaped handle integrally connected with the sphere, and the T-shaped handle extends out of the extension pipe; the T-shaped handle is consistent with the direction of the through channel; when the ball switch is used, the T-shaped handle is rotated to the vertical direction, the through passage is communicated with the inside of the negative pressure suction ball, drainage liquid flows into the liquid leakage container, the T-shaped handle is rotated to the horizontal direction, the through passage is not communicated with the inside of the negative pressure suction ball, and the drainage liquid is blocked in the negative pressure suction ball.

Further, a protruding hole allowing the T-shaped handle to protrude is formed in the side wall of the extension pipe; this arrangement ensures that the T-shaped handle can rotate smoothly.

Furthermore, scale marks and scale values corresponding to the scale marks are arranged on the outer side wall of the liquid leakage container; the arrangement is convenient for measuring the amount of the leaked liquid.

Furthermore, the left and right outer side walls of the liquid leakage container are provided with operating handles which are convenient for an operator to install or disassemble the liquid leakage container, and the operating handles are integrally connected with the liquid leakage container.

When the device is used, the drainage tube in the body is firstly placed in the patient, the drainage tube at the anastomotic opening is placed behind the anastomotic opening and is pressed by internal organs in the body to fix the position, the splenic fossa drainage tube is placed at the splenic fossa, the fusion tube in the body is connected with the drainage tube in the body in a combined manner through the connecting tube, an operator holds the negative pressure suction ball with hands to drain the leaked liquid in the leaked liquid container, the amount of the leaked liquid is measured through the scale marks and scale values on the leaked liquid container, the leaked liquid container is detached from the bottom of the negative pressure suction ball when the leaked liquid container is filled with the leaked liquid, and the leaked liquid is poured and then assembled on the negative pressure suction ball.

Compared with the leakage liquid drainage apparatus in the prior art, the technical scheme of the utility model is provided with a bidirectional drainage pipeline, and simultaneously drains the leakage liquid at the outlet of the anastomotic stoma and the splenic fossa, thereby effectively avoiding the leakage liquid from infecting internal organs in vivo, and flushing the body by arranging a flushing channel and a flushing pipe, further preventing infection in vivo; in addition, the leakage liquid container not only accepts the leakage liquid in the negative pressure suction ball, strengthens the safety of no countercurrent in the whole drainage process, but also can measure the amount of the leakage liquid, is convenient for clinical statistics and has good technical effect.

Drawings

Fig. 1 is a schematic overall structure diagram of a drainage instrument used after an alimentary canal anastomosis of the present invention;

FIG. 2 is a schematic view of the whole cross-sectional structure of a drainage apparatus used after the alimentary canal anastomosis of the present invention;

FIG. 3 is an enlarged view of an internal drainage tube with an absorbable sac of the drainage apparatus after the alimentary tract anastomosis;

FIG. 4 is an enlarged schematic view of an in-vivo drainage tube of a drainage apparatus used after an anastomosis of the digestive tract;

FIG. 5 is an enlarged schematic view of a drainage tube at an anastomotic site of a drainage instrument used after an anastomosis of the digestive tract;

FIG. 6 is a schematic cross-sectional enlarged view of a drainage tube at an anastomotic site of a drainage instrument used after an anastomosis of the digestive tract;

FIG. 7 is an enlarged structural view of the cross section of the tube diameter of the drainage tube at the anastomotic site of the drainage device after the alimentary canal anastomosis;

fig. 8 is an enlarged structural view of a spleen fossa drainage tube of the drainage apparatus used after the alimentary canal anastomosis;

FIG. 9 is an enlarged structural view of the cross section of the tube diameter of the splenic fossa drainage tube of the drainage apparatus used after the alimentary canal anastomosis;

FIG. 10 is an enlarged view of the starting end of the flushing channel of the drainage device after the alimentary tract anastomosis;

FIG. 11 is an enlarged cross-sectional view of the starting end of the flushing channel of the drainage device after the alimentary canal anastomosis;

FIG. 12 is an enlarged schematic view of the terminating end of the flushing channel of the drainage device after the alimentary canal anastomosis;

FIG. 13 is an enlarged cross-sectional view of the junction between the internal fusion tube and the external drainage tube of the drainage device used after the alimentary canal anastomosis;

FIG. 14 is an enlarged cross-sectional view of the junction between the external drainage tube and the negative pressure drainage ball of the drainage apparatus used after the alimentary tract anastomosis;

FIG. 15 is an enlarged cross-sectional view of the junction between the negative pressure drainage ball and the leakage liquid container of the drainage apparatus used after the alimentary tract anastomosis;

in the figure, 1, an intracorporeal drainage tube; 11. a drainage tube at the anastomotic opening; 111. a cross-shaped support rib; 112. a bullet tube; 113. flushing the channel; 1131. a dust plug; 1132. an elastic connecting rope; 114. an absorbable pouch; 12. a splenic fossa drainage tube; 121. t-shaped support ribs; 13. longitudinally slotting; 14. an in vivo fusion tube; 2. an extracorporeal drainage tube; 21. a connecting pipe; 3. a negative pressure drainage ball; 31. a drainage opening; 32. an air outlet; 321. a gas check valve; 33. an extension tube; 331. a ball switch; 3311. a sphere; 3312. a through passage; 3313. a T-shaped handle; 4. a liquid leakage container; 41. scale lines; 42. a scale value; 43. an operating handle; 5. a liquid one-way valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described in detail below with reference to specific embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and those skilled in the art can easily understand other advantages and effects of the present invention from the disclosure in the specification. The utility model discloses can also implement or use through other different concrete implementation manners, under the condition of conflict-free, the characteristics in following embodiment and the embodiment can make up each other, based on the embodiment in the utility model, all other embodiments that the ordinary skilled in the art obtained under the prerequisite of not making creative work all belong to the scope of protection of the utility model.

The gas check valve and the liquid check valve in the technical scheme are both mature prior art, and the technical personnel in the field can implement the gas check valve and the liquid check valve without barriers, so that the technical scheme does not have the problem of insufficient disclosure.

EXAMPLE 1A drainage device used after digestive tract anastomosis

A drainage apparatus used after alimentary canal anastomosis, which comprises a drainage tube and a negative pressure suction structure, is characterized in that the drainage tube comprises an internal drainage tube 1 and an external drainage tube 2; the front end of the in-vivo drainage tube 1 extends into the patient body and is divided into two slotted drainage tubes, and the two slotted drainage tubes comprise an anastomotic opening drainage tube 11 placed behind an anastomotic opening of an esophageal transplantation intestinal canal of the patient and a splenic fossa drainage tube 12 placed at the splenic fossa; the back end of the internal drainage tube 1 extends out of the body of the patient and is connected with the external drainage tube 2 in a combined or integrated way; one end of the external drainage tube 2, which is far away from the internal drainage tube 1, is tightly connected with the negative pressure suction structure; the drainage tube 1 in the body is placed in the body of a patient, one of the two drainage tubes with the grooves is placed behind an anastomotic stoma of an esophageal transplantation intestinal tube, the other drainage tube is placed at a splenic fossa, and leakage liquid or effusion liquid near the anastomotic stoma and in the splenic fossa is sucked out of the body of the patient through the negative pressure suction structure, so that infection in the body of the patient is avoided.

The rear ends of the drainage tube 11 at the anastomotic opening and the spleen fossa drainage tube 12 are intersected with an in-vivo fusion tube 14 with a cylindrical main body; the drainage tube 11 at the anastomotic opening, the fossa splenalis drainage tube 12 and the fusion tube 14 in vivo form a complete drainage tube 1 in vivo, the drainage tube 11 at the anastomotic opening can timely drain the exudate or the leakage fluid flowing out from the anastomotic opening, and the fossa splenalis drainage tube 12 can drain the fluid flowing into the fossa splenalis, so that the exudate or the leakage fluid can be comprehensively prevented from infecting the body of a patient.

The drainage tube 11 at the anastomotic opening is a circular arc drainage tube with a cylindrical main body, and the radian of the circular arc drainage tube is set to be 5/3 pi-17/9 pi; the corresponding angle of the arc-shaped drainage tube is 300-340 degrees, so that the open end of the arc-shaped drainage tube is not in integral contact with the in-vivo drainage tube 1, the liquid in the body of a patient can be smoothly sucked, and the drainage tube at the anastomotic position can be well fixed in the body of the patient by being pressed under the visceral organs.

The head end of the drainage tube 11 at the anastomosis opening is provided with a bullet-shaped bullet head tube 112, and the bullet head tube 112 is integrally connected with the drainage tube at the anastomosis opening; the head end of the drainage tube 11 at the anastomotic opening is convenient to pass through the gaps among viscera in the body.

The main body of the splenic fossa drainage tube 12 is semicircular, the head end of the splenic fossa drainage tube 12 is provided with the bullet head tube 112 with an angle of 180 degrees, the supporting rib is arranged in the splenic fossa drainage tube 12 and is provided with T-shaped supporting ribs 121 which are arranged in a T shape, and the supporting ribs are integrally connected with the inner wall of the splenic fossa drainage tube 12; the head end of the spleen fossa drainage tube 12 arranged in the way is convenient to penetrate through gaps among organs, and the support ribs can ensure the smoothness of the spleen fossa drainage tube 12.

Longitudinal grooves 13 are formed in the side walls between the supporting ribs of the drainage tube 11 at the anastomotic opening and the drainage tube 12 of the spleen fossa, and the length of each longitudinal groove 13 is smaller than that of the drainage tube 11 at the anastomotic opening and that of the drainage tube 12 of the spleen fossa; the longitudinal slots 13 arranged in this way facilitate rapid absorption of the leakage liquid.

A connecting pipe 21 for connecting the internal fusion tube 14 and the external drainage tube 2 is provided, one end of the connecting pipe 21 is integrally connected with the external drainage tube 2, and the other end is inserted into the internal fusion tube 14; the arrangement realizes the combined connection of the internal drainage tube 1 and the external drainage tube 2, when in use, the internal drainage tube 1 is firstly placed into the body of a patient, and then the internal drainage tube 1 and the external drainage tube 2 are combined and connected, thereby solving the problem that the whole drainage tube is longer and inconvenient to operate.

The negative pressure suction structure is a negative pressure suction ball, the top end of the negative pressure suction ball is provided with a drainage port 31 and an air outlet 32, and the external drainage tube 2 is integrally connected with the drainage port 31.

A liquid one-way valve 5 is arranged at one end of the external drainage tube 2 connected with the drainage port 31, and the liquid one-way valve 5 is integrally connected with the inner wall of the external drainage tube 2; a gas one-way valve 321 is arranged in the gas outlet 32, and the gas one-way valve 321 is integrally connected with the inner wall of the gas outlet 32; the arrangement of the liquid one-way valve 5 can ensure that the leakage liquid flows into the one-way flow direction of the negative pressure suction ball from the external drainage tube 2, and the arrangement of the gas one-way valve 321 can ensure that the inside of the negative pressure suction ball is kept in a negative pressure state.

A liquid leakage container 4 is arranged at the bottom of the negative pressure suction ball, and the liquid leakage container 4 is connected with the negative pressure suction ball in a combined way and is communicated with the inside of the negative pressure suction ball; the arrangement ensures that the leakage liquid in the negative pressure suction ball flows into the leakage liquid container 4, thereby being convenient for measuring the amount of the leakage liquid.

An extension pipe 33 with a cylindrical main body is arranged at the bottom of the negative pressure suction ball, an external thread is arranged on the extension pipe 33, a corresponding internal thread is arranged at the upper end of the liquid leakage container 4, and the negative pressure suction ball is connected with the liquid leakage container 4 through a thread combination.

A switch for controlling the leakage liquid to enter the leakage liquid container 4 is arranged in the extension pipe 33; when the leakage liquid container 4 is filled with leakage liquid, the switch is adjusted to be in a closed state, and the leakage liquid in the negative pressure suction ball is prevented from flowing out to pollute the environment of a ward.

The outer side wall of the liquid leakage container 4 is provided with scale marks 41 and scale values 42 corresponding to the scale marks 41; the arrangement is convenient for measuring the amount of the leaked liquid.

The left and right outer side walls of the leakage liquid container 4 are provided with operating handles 43 which are convenient for an operator to install or dismantle the leakage liquid container 4, and the operating handles 43 are integrally connected with the leakage liquid container 4.

EXAMPLE 2A drainage device used after digestive tract anastomosis

A supporting structure is arranged on the inner wall of the drainage tube 11 at the anastomotic opening and is integrally connected with the inner wall of the drainage tube 11 at the anastomotic opening; the arrangement can ensure the smoothness of the drainage tube 11 at the anastomotic opening and avoid blockage.

The supporting structure is provided with supporting ribs, and the supporting ribs are provided with centers which are not connected with cross-shaped supporting ribs 111 arranged in a cross shape; the supporting ribs are made of medical silica gel materials; the arrangement can ensure that the drainage tube is not collapsed softly and is always in a smooth state, and the drainage tube has certain softness and can be bent.

The supporting rib starts from the joint of the bullet tube 112 and the drainage tube 11 at the anastomotic opening and ends at the junction of the drainage tube 11 at the anastomotic opening and the splenic fossa drainage tube 12.

The negative pressure suction ball is made of medical silica gel material; the operator pinches the negative pressure suction ball with hands to enable the air in the negative pressure suction ball to be discharged from the air outlet 32, and the negative pressure suction ball is in a negative pressure state, so that the leakage liquid in the body is guided to the inside of the negative pressure suction ball.

EXAMPLE 3A drainage device used after digestive tract anastomosis

An absorbable bag 114 capable of siphoning leaked liquid is arranged on the outer side of the drainage tube 11 at the anastomotic opening, and the drainage tube 11 at the anastomotic opening is coated by the absorbable bag at 114360 degrees; the device has the function of siphon leakage liquid, and is beneficial to efficiently absorbing the leakage liquid.

The absorbable pouch 114 is made of a nano fiber material; the nano-fiber material can be degraded and absorbed by human body, and the degradation time is longer than the drainage time, which can meet the drainage requirement.

The switch is a ball switch 331, the ball switch 331 includes a ball 3311 with a through passage 3312 at the center and a T-shaped handle 3313 integrally connected with the ball 3311, the T-shaped handle 3313 extends out of the extension tube 33; the T-shaped handle 3313 is aligned with the through passage 3312; when the ball switch 331 is used, the T-shaped handle 3313 is rotated in the vertical direction, the through passage 3312 is communicated with the inside of the negative pressure suction ball, the drainage fluid flows into the leakage fluid container 4, and the T-shaped handle 3313 is rotated in the horizontal direction, the through passage 3312 is not communicated with the inside of the negative pressure suction ball, and the drainage fluid is blocked in the negative pressure suction ball.

A protrusion hole allowing the T-shaped handle 3313 to protrude is provided on the side wall of the extension tube 33; this arrangement ensures that the T-shaped handle 3313 can be rotated smoothly.

EXAMPLE 4A drainage device used after digestive tract anastomosis

A flushing channel 113 which is convenient for internal flushing is arranged in the center of the drainage tube 11 at the anastomotic opening, and the direction of the flushing channel 113 is the same as that of the drainage tube 11 at the anastomotic opening; the flushing channel 113 starts from the side wall of the interbody fusion tube 14 and ends at the head end of the drainage tube 11 at the anastomotic orifice; a liquid inlet is arranged at the initial end of the flushing channel 113, and a liquid outlet is arranged at the terminal end of the flushing channel 113; when in use, the flushing liquid is injected into the flushing channel 113 through the liquid inlet, flows out of the liquid outlet and enters the body of a patient for flushing, so as to avoid the leaked liquid from infecting other organs; or put into the flushing pipe from the liquid inlet, and the flushing liquid is injected into the flushing pipe to flush the body.

A liquid one-way valve 5 for preventing the liquid in the body from entering the flushing channel 113 is arranged at the termination end of the flushing channel 113, and the liquid one-way valve 5 is integrally connected with the inner wall of the flushing channel 113; the arrangement ensures the unidirectional flow of liquid, and prevents the leakage liquid in the body from entering the flushing channel 113 to further pollute the flushing channel 113 and/or the flushing pipe.

A dust plug 1131 is arranged at the liquid inlet of the flushing channel 113 to ensure that the flushing channel 113 is not polluted; such an arrangement may ensure that sterility is maintained during transit or when not in use.

EXAMPLE 5A drainage device used after digestive tract anastomosis

An elastic connecting rope 1132 is arranged at the top end of the dust plug 1131, one end of the elastic connecting rope 1132 is integrally connected with the dust plug 1131, and the other end of the elastic connecting rope 1132 is integrally connected with the outer side wall of the flushing channel 113; the elastic connection rope 1132 with the arrangement connects the dust plug 1131 to the flushing channel 113, so that the dust plug 1131 is effectively prevented from being lost.

The above description of the embodiments is only intended to illustrate the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several modifications can be made to the present invention, and these modifications will fall within the protection scope of the claims of the present invention.

Claims

1. A drainage apparatus used after alimentary canal anastomosis, which comprises a drainage tube and a negative pressure suction structure, is characterized in that the drainage tube comprises an in-vivo drainage tube and an in-vitro drainage tube; the front end of the in-vivo drainage tube extends into the patient body and is divided into two slotted drainage tubes, and the two slotted drainage tubes comprise a drainage tube at an anastomotic opening positioned behind an anastomotic opening of an esophagus transplantation intestinal canal of the patient and a fossa drainage tube positioned at the fossa splenalis; the rear end of the internal drainage tube extends out of the body of the patient and is connected with the external drainage tube in a combined or integrated way; one end of the external drainage tube, which is far away from the internal drainage tube, is tightly connected with the negative pressure suction structure.

2. The drainage apparatus after the alimentary canal anastomosis according to claim 1, wherein said drainage tube at the anastomosis site and the rear end of the drainage tube of the fossa splenalis meet in a body fusion tube having a cylindrical body.

3. The drainage apparatus after the alimentary canal anastomosis according to claim 2, wherein said drainage tube at the anastomosis site is configured as a circular arc shaped drainage tube having a cylindrical body, and the radian of the circular arc shaped drainage tube is set to 5/3-17/9 pi.

4. The drainage apparatus after the alimentary canal anastomosis according to claim 3, wherein the head end of said drainage tube at the anastomosis site is provided with a bullet-shaped bullet-head tube integrally connected with the drainage tube at the anastomosis site.

5. The drainage apparatus for use after an alimentary tract anastomosis according to claim 4, wherein a support structure is provided on an inner wall of the drainage tube at the anastomosis port, the support structure being integrally connected to the inner wall of the drainage tube at the anastomosis port; the supporting structure is provided with supporting ribs, and the supporting ribs are provided with cross-shaped supporting ribs which are not connected with the center and are arranged in a cross shape; the support ribs are made of medical silica gel materials.

6. The drainage apparatus for use after the alimentary canal anastomosis according to claim 2, wherein an absorbable sac capable of siphoning the leakage liquid is provided outside the drainage tube at the anastomosis, and the absorbable sac covers the drainage tube at the anastomosis for 360 °.

7. The drainage apparatus for use after an alimentary canal anastomosis according to any one of claims 2 to 6, wherein an irrigation channel for facilitating in vivo irrigation is provided in the center of said drainage tube at the anastomosis site, the direction of said irrigation channel being the same as the direction of said drainage tube at the anastomosis site; the flushing channel starts from the side wall of the in-vivo fusion tube and ends at the head end of the drainage tube at the anastomotic opening; the starting end of the flushing channel is provided with a liquid inlet, and the ending end of the flushing channel is provided with a liquid outlet.

8. The drainage apparatus after the alimentary canal anastomosis according to claim 5, wherein the body of the fossa splenalis drainage tube is configured as a semicircle, the bullet head tube is arranged at the head end of the fossa splenalis drainage tube for 180 degrees, the support rib is arranged in the fossa drainage tube, the support rib is configured as a T-shaped support rib arranged in a T shape, and the support rib is integrally connected with the inner wall of the fossa splenalis drainage tube.

9. The drainage apparatus for use after the alimentary canal anastomosis according to claim 1, wherein said negative pressure suction structure is configured as a negative pressure suction ball, a drainage port and an air outlet are provided at the top end of the negative pressure suction ball, and the external drainage tube is integrally connected with the drainage port.

10. The drainage apparatus after the digestive tract anastomosis according to claim 9, wherein a leakage liquid container is arranged at the bottom of the negative pressure suction ball, and the leakage liquid container is connected with the negative pressure suction ball in a combined way and is communicated with the inside of the negative pressure suction ball.