CN202376517U - Rectum inner isolation drainage device suitable for rectal-cancer sphincter preserving operation and placing device of same - Google Patents

Abstract

The utility model discloses an isolation drainage device in the rectum and an insertion device for the drainage device suitable for anus-preserving surgery for rectal cancer, wherein the drainage device has a tubular drainage tube (1) and a drainage tube ( 1) The air bag (2) on the outer wall, the air bag (2) is sleeved on the top of the drainage tube (1), and the upper end surfaces of the two are flush; the inner wall of the drainage tube (1) is provided with an inflatable Tube (3), one end of the trachea (3) communicates with the air bag (2), and the other end is provided with an inflation nozzle (4) and extends out of the lower port of the drainage tube (1) along the inner wall of the drainage tube (1); The insertion device is to establish a spheroid (5) to form at one end of the push rod (6). There is no space for intestinal contents to remain between the drainage device described in the utility model and the intestinal tube, which significantly reduces the risk of intestinal contents contaminating the anastomosis.

Description

An internal rectal isolation drainage device suitable for anus-preserving surgery for rectal cancer and an insertion device for the drainage device

technical field

The utility model relates to a device for transferring body fluid, in particular to a drainage device for body fluid in the rectum. the

Background technique

At present, rectal cancer is one of the most common malignant tumors of the digestive tract. Surgical resection of the diseased bowel segment is an important treatment for rectal cancer, but the incidence of postoperative anastomotic leakage is high. 3.3% to 23%. There are many reasons for the occurrence of anastomotic leakage, the most common ones are excessive tension of the anastomotic stoma, insufficient blood supply and improper placement of the drainage tube, resulting in anastomotic abscess or surrounding abscess, followed by anastomotic leakage. the

For the prevention and treatment of anastomotic leakage after rectal cancer surgery, intraoperative prophylactic ostomy is often used clinically, and the second stage is reoperation 2-3 months later for stoma return. The above scheme can effectively prevent the occurrence of anastomotic leakage and the corresponding risk of laparotomy, but it also has obvious deficiencies: 1. From the perspective of minimally invasive, preventive fistula makes an extra incision in the patient's abdomen, Affect the appearance; 2. The preventive fistula needs to be kept for 2-3 months, and the pain of the patient is unbearable, psychological pressure, and low quality of life; 3. The above preventive methods will require a second operation in the later stage, and the hospitalization time will be prolonged At the same time, it is also necessary to bear the risk of secondary surgery; 4. After preventive ostomy, the stoma itself also has risks, such as stoma necrosis, stoma retraction, stoma prolapse, parastomal hernia, stoma stenosis and Dermatitis around the stoma, etc. the

In order to solve the above-mentioned technical problems, the invention patent application with the publication number CN102091359A discloses "an anal canal used in rectal and anal diseases". It is tubular, and its cross-section is ring-shaped, which can be expanded and contracted by injecting or pumping liquid or gas; the suction device and the irrigator are arranged in the telescopic bag, wherein the suction device is used to suck out the contents of the intestinal tube, and the irrigator is used to flush the intestinal tube . The anal canal of this invention is placed at the anastomotic opening of the intestinal canal. After expansion, the stretchable balloon can compress the wound to stop bleeding, and at the same time separate the contents of the intestinal canal from the wound, and the contents of the intestinal canal can be sucked out by the suction device, which can reduce postoperative anastomotic leakage. incidence rate. However, the anal canal described in the above-mentioned patent application has the following disadvantages: 1. The head of the suction device and the flushing device stretches out from the end face of the telescopic bag, so there is a gap between the outer wall of the protruding part and the inner wall of the intestinal tract. There must be intestinal contents, which can easily permeate into the anastomosis and contaminate the wound; 2. There is no structure for injecting or extracting gas or liquid into the flexible bag, so when the flexible bag has been injected When there is gas (or liquid), it is inconvenient for the anal canal to be inserted or taken out during the operation. When no gas (or liquid) is injected into the telescopic bag, gas or liquid cannot be injected during the operation. Stomach may lead to anastomotic ischemia or necrosis. the

Contents of the invention

In view of the deficiencies in the prior art, the technical problem to be solved by this utility model is to provide an isolation and drainage device in the rectum suitable for rectal cancer sphincter-preserving surgery. Risk of contamination of the anastomotic stoma by bowel contents and can be easily inserted or removed from the anus. the

The technical scheme that the utility model solves the above problems is as follows:

An isolated rectal drainage device suitable for anus-preserving surgery for rectal cancer. The device has a tubular drainage tube and an air bag arranged on the outer wall of the drainage tube. It is characterized in that the air bag is sleeved on the top of the drainage tube, and The upper ends of the two are flush; the inner wall of the drainage tube is provided with an inflatable tube, one end of the air tube communicates with the air bag, and the other end is provided with an inflatable mouth and extends out of the lower port of the drainage tube along the inner wall of the drainage tube. the

In the above-mentioned technical scheme, in order to prevent the balloon from extending to the upper port of the drainage tube after being inflated, the diameter of the inlet of the drainage tube is reduced, and the thickness of the wall of the upper surface of the balloon is greater than that of other surfaces. The upper end surface of the air bag is realized by adding a layer of rubber. the

In the drainage device described in the utility model, in order to facilitate the insertion of the drainage device into the intestinal canal from the anus, the upper port of the drainage tube shrinks inwardly to form a flange, so that a rod-shaped insertion device can be inserted into the drainage tube and supported on the flange, the drainage device is pushed into the intestine. the

The utility model also provides an insertion device of the drainage device, the insertion device is formed by setting a sphere at one end of the push rod, the diameter of the sphere is smaller than or equal to the inner diameter of the drainage tube, and larger than the diameter of the flange. the inside diameter of. the

The drainage device described in the utility model is put into the rectum from the anus during use, and the air bag is positioned about 5-10 cm above the anastomotic stoma. After the air bag is inflated through the inflation nozzle, the air bag expands and tightens on the inner wall of the rectum. so as to separate the intestinal contents from the anastomotic stoma and prevent the anastomotic stoma from being infected; since the upper end surface of the air bag in the device is flush with the upper end surface of the drainage tube, there is no intestinal content remaining between the entire drainage device and the intestinal canal There is no space for intestinal contents to penetrate into the anastomosis, which significantly reduces the risk of intestinal contents contaminating the wound and further reduces the incidence of anastomotic leakage. the

The insertion device described in the utility model inserts one end of the sphere from the lower port of the drainage tube when in use. Since the diameter of the sphere is larger than the inner diameter of the flange of the upper port of the drainage tube, the sphere can be clamped on the In the flange, the drainage device can be pushed from the anus into the rectum; during the pushing process, the intestinal wall will not be damaged due to the smooth appearance of the ball. the

Description of drawings

Fig. 1 and Fig. 2 are structural schematic diagrams of a specific embodiment of the drainage device described in the present invention, wherein Fig. 1 is a front view, and Fig. 2 is a top view. the

Fig. 3 is a schematic structural view of the inflation nozzle in the drainage device shown in Fig. 1 and Fig. 2 . the

Fig. 4 is a schematic structural view of a specific embodiment of the insertion device described in the present invention. the

Fig. 5 is a schematic structural view of the combination of the drainage device shown in Figs. 1 and 2 and the insertion device shown in Fig. 4 . the

Fig. 6 is a view of the use state of the drainage device shown in Fig. 1 and Fig. 2 . the

Detailed ways

1 to 3, the drainage device described in the utility model is composed of an airbag 2, a drainage tube 1 and an inflatable tube 3, wherein the drainage tube 1 is a cylindrical tube with an outer diameter of 2.5 cm made of silica gel. The upper port of the tube is provided with a flange 1-1 formed by shrinking inwards. The cross section of the airbag 2 is ring-shaped, and the diameter of the inner ring is equal to the outer diameter of the drainage tube 1; the airbag 2 is also made of silica gel, and a layer of rubber is added on the surface of the upper wall of the airbag 2. layer, so that the wall thickness of the upper wall of the air bag 2 is slightly larger than the wall thickness of the other parts; The upper end surface of the drainage tube 1 is flush. An inflatable tube 3 is fixed on the inner wall of the drainage tube 1, the top of the inflatable tube 3 extends into the air bag 2 from the top of the drainage tube 1 and communicates with the air bag 2, and the lower end of the inflatable tube 3 extends along the inner wall of the drainage tube 1 and Protruding from the bottom of the drainage tube 1, the end of the inflation tube 3 of the extension part is provided with an inflation nozzle 4, the inflation nozzle 4 is a common ball core check valve, consisting of a valve body 4-1, a ball core 4-2 And helical compression spring 4-3 constitutes (referring to Fig. 3). the

Referring to Fig. 4, the insertion device described in the utility model is composed of a push rod 6 and a ball 5 fixed on one end of the push rod 6, wherein the diameter of the ball 5 is slightly smaller than the inner diameter of the drainage tube 1 and larger than The inner diameter of the flange 1-1 on the upper port of the drainage tube 1. the

Below in conjunction with accompanying drawing, the use of drainage device described in the utility model and its insertion device is further described:

Referring to Fig. 5 and Fig. 6, during the operation, first anastomose the intestinal tube 7, and place the drainage device into the intestinal tube 7 under direct vision of the operative field: before the drainage device is placed, the balloon 2 is in a non-inflated state; The sphere 5 inserted into the device is inserted from the lower port of the drainage tube 1, and the sphere 5 is clamped on the flange 1-1 of the upper port of the drainage tube 1, and the drainage device is pushed from the human body through the push rod 6 inserted into the device. The anus enters the intestinal tube 7, and the air bag 2 is located 5-10 cm above the anastomosis 8. At this time, the lower end of the drainage tube 1 and the inflatable nozzle 4 are located outside the anus of the human body; The gas is injected so that the balloon 2 is stretched tightly on the inner wall of the intestinal tube 7 . the

After it is determined that the anastomotic stoma 8 is healed, the gas in the air bag 2 is drawn out, and the drainage device is taken out from the anus. the

Claims (4)

1. an isolation drainage device in the rectum that is applicable to anus-preserving operation for rectal cancer, this device has tubular drainage tube (1) and the air bag (2) that is located on the drainage tube (1) outer wall, it is characterized in that, described The air bag (2) is sleeved on the top of the drainage tube (1), and the upper end surfaces of the two are flush; the inner wall of the drainage tube (1) is provided with an inflatable tube (3), and one end of the trachea (3) It communicates with the airbag (2), and the other end is provided with an inflation nozzle (4) and extends out of the lower port of the drainage tube (1) along the inner wall of the drainage tube (1). 2 . The rectal isolation and drainage device suitable for rectal cancer sphincter preservation according to claim 1 , characterized in that the thickness of the wall of the upper surface of the balloon ( 2 ) is greater than that of other surfaces. 3 . 3. A rectal isolation drainage device suitable for rectal cancer sphincter preservation according to claim 1 or 2, characterized in that, the upper port of the drainage tube (1) shrinks inwardly to form a flange (1 -1). 4. a device for inserting drainage device according to claim 3, characterized in that, the inserting device is formed by setting a sphere (5) at one end of the push rod (6), and the diameter of the sphere (5) is It is smaller than or equal to the inner diameter of the drainage tube (1), and larger than the inner diameter of the flange (1-1).

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