CN210019544U - A gastric tube for laparoscopic partial gastrectomy - Google Patents

Abstract

The utility model discloses a stomach tube for laparoscopic stomach cutting and removing operation, belonging to the technical field of medical apparatus, comprising a stomach tube body (1), wherein an elastic part (3) is arranged on the stomach tube body (1), the elastic part (3) is positioned at the periphery of the stomach tube body (1), a separation cavity (4) is reserved between the elastic part and the stomach tube body (1), a branch tube (5) is also arranged on the stomach tube body (1), the branch tube (5) is communicated with the separation cavity (4), and a check valve (6) is arranged on the branch tube (5); when the inflation body or liquid in the elastic part of the utility model is expanded, the shape is similar to the common tubule stomach tube, the insertion is convenient and safe before the operation, the mucous membrane can not be damaged, and the elastic part does not need to be taken out after the operation; and play stay tube and guide effect in LSG operation, avoid excessively cutting the stomach wall to it is narrow and small to avoid causing the stomach chamber, makes the wound and the misery that the patient received greatly reduce, and LSG's experience is felt and is showing and is improving.

Description

A gastric tube for laparoscopic partial gastrectomy

technical field

The utility model relates to the technical field of medical devices, in particular to a gastric tube for laparoscopic partial gastrectomy.

Background technique

In recent years, weight loss is not only about beauty, but more importantly, the treatment of some diseases such as type 2 diabetes is also controlled and treated through weight loss. With the continuous improvement of bariatric surgery methods and the maturity of laparoscopic surgery technology, this surgery will be accepted by more and more patients due to its safety, effectiveness and minimally invasive advantages. Nowadays, people's requirements for health and quality of life are increasing day by day, and the understanding of surgical weight loss is more profound, and surgical treatment of obesity has been accepted by more and more people.

In terms of surgical procedures, after repeated practice by surgeons, laparoscopic sleeve gastrectomy (LSG) has been proved to be a bariatric procedure with definite curative effect, relatively simple operation, and fewer complications related to surgery. LSG is the use of laparoscope to keep the gastric antrum above 2-6 cm above the pylorus along the direction of the greater curvature of the stomach, to remove most of the stomach along the long axis of the stomach, and to remove all the gastric fundus, so that the residual stomach is "banana-shaped", making the stomach A small gastric pouch can be formed, which can hold about 4 to 5 ounces of food. The principle of laparoscopic sleeve gastrectomy is to reduce the stomach volume and reduce the secretion of hormones that stimulate hunger, so as to achieve the purpose of weight loss; that is, the principle is Based on reducing or limiting the effective capacity of the stomach and reducing the absorption of food by the intestine, the key to ensuring the ideal weight loss after surgery is to remove enough gastric tissue to make the sleeve gastric cavity as small as possible.

However, due to the lack of special auxiliary equipment, the current LSG is prone to excessive cutting of the gastric wall, resulting in a narrow gastric cavity, and the probability of postoperative anastomotic stenosis is extremely high. The reported incidence of anastomotic stenosis is 0.9%. If stenosis occurs, further balloon dilation or stenting is required, and sometimes even reoperation is required. Stenosis is also the main cause of gastric leakage, the most serious and intractable complication after LSG. At present, surgeons use thick gastric tubes for LSG surgery. After surgery, the gastric tube must be removed, and then a normal gastric tube with a thin tube is inserted for postoperative drainage. It is difficult to insert a thick gastric tube before surgery, and it is easy to cause mucosal damage. . After the operation, the thick tube needs to be pulled out, and then the thinner ordinary gastric tube needs to be reinserted, which makes the operation troublesome and easily causes mucosal damage. Although there are some reports of similar special equipment, such as Chinese patent application CN107773289 A, this patent still cannot solve the above-mentioned problems.

Utility model content

The purpose of this utility model is to provide a gastric tube for laparoscopic partial gastrectomy to solve the above problems.

In order to achieve the above purpose, the technical solution adopted by the present invention is as follows: a gastric tube for laparoscopic partial gastrectomy, including a gastric tube body, the head end of the gastric tube body is the one that protrudes out of the nasal cavity after the gastric tube is indwelled The outer end, the head end is provided with a connecting part, an elastic part is provided on the gastric tube body, the elastic part is located on the outer periphery of the gastric tube body, and leaves a compartment with the gastric tube body, the gastric tube body A branch pipe is also provided on the upper part of the stomach tube, the branch pipe is communicated with the compartment, and a one-way valve is arranged on the branch pipe; A through hole is provided, the opening section is located near the tail end of the gastric tube body, and the elastic part is located between the connecting part and the opening section.

The utility model is provided with an elastic part on the common gastric tube, and the elastic part can be inflated under the condition of inflating or water-filled inside, so as to increase the outer diameter of a part of the gastric tube, so as to play a supporting role during the operation. Before and after the operation, the gas or liquid inside is taken out, and the outer diameter of the entire gastric tube including the elastic part is restored to be roughly the same as that of an ordinary gastric tube, so that it is convenient to insert before the operation, and does not need to be taken out after the operation. The operation of the medical staff is simplified, and the patient Pain is greatly reduced.

As a preferred technical solution: the elastic part surrounds the entire circumference of the stomach tube body, and the branch tube is one.

As a preferred technical solution: the elastic parts are at least two independent, the at least two elastic parts are evenly distributed on the outer periphery of the gastric tube body, and the number of the branch pipes is the same as the number of the elastic parts.

The setting method of the elastic part can be to add a whole circle of elastic layers with greater elasticity and thinner thickness, such as elastic rubber, etc., on the outer periphery of the appropriate position of the ordinary gastric tube; The elastic part is also made of elastic rubber with a thinner thickness; for the part of the stomach tube with the elastic part on the outside, the shape can remain unchanged, or a slightly concave part can be set, so that the elastic rubber of the elastic part is not inflated or inflated. Storing while filling.

As a preferred technical solution: the gastric tube body is provided with a scale, and a mark is provided every 1 cm.

As a preferred technical solution: the length of the gastric tube body is 90-120 cm, the length of the elastic part is 20-30 cm, and the elastic part is close to one end of the head end of the gastric tube body and 60-80 cm away from the head end of the gastric tube body.

As a preferred technical solution: the expanded diameter of the elastic portion is 1.0-1.2 cm.

Compared with the prior art, the advantages of the present utility model are:

The utility model is provided with an elastic part. When the inner part of the elastic part is not inflated or the liquid is inflated, its shape is similar to that of an ordinary thin-tube gastric tube, which is convenient and safe to insert before the operation, and will not damage the mucous membrane;

The gastric tube of the utility model can play the role of supporting tube in LSG operation, and play the role of supporting and guiding when cutting the gastric wall, so as to avoid excessive cutting of the gastric wall, so as to avoid the narrowing of the gastric cavity;

After LSG operation, the gastric tube of the present invention does not need to be removed, and the gas or liquid filled before is directly discharged from the branch tube, so that it returns to the normal gastric tube shape when it was just inserted, and is left in the gastrointestinal tract. Plays the role of postoperative drainage and auxiliary feeding; no need to insert ordinary gastric tube or drainage tube again; the operation difficulty of medical staff is greatly reduced, and the operation steps are also simplified, more importantly, the trauma and pain suffered by the patient are greatly reduced Lowering, the experience of LSG is significantly improved. By adopting the device of the utility model, the occurrence rate of anastomotic stenosis can be significantly reduced.

Description of drawings

Fig. 1 is the structural representation of the gastric tube of the utility model embodiment 1 in the ordinary state;

Fig. 2 is the structural schematic diagram of the gastric tube of the utility model embodiment 1 after the elastic part is inflated or filled with liquid;

Fig. 3 is A-A sectional view in Fig. 2;

Fig. 4 is the structural representation of the gastric tube of the utility model embodiment 2 in the ordinary state;

5 is a schematic structural diagram of the gastric tube according to Embodiment 2 of the present invention after the elastic part is inflated or filled with liquid;

FIG. 6 is a sectional view taken along line B-B in FIG. 5 .

In the figure: 1, gastric tube body; 2, connecting part; 3, elastic part; 4, compartment; 5, branch pipe; 6, one-way valve; 7, opening section; 8, through hole; 9, scale.

Detailed ways

The present utility model will be further described below with reference to the accompanying drawings.

Example 1:

1-3, a gastric tube for laparoscopic partial gastrectomy includes a gastric tube body 1, the length of which is about 90 cm, the outer diameter and the inner diameter of the gastric tube body 1 are respectively 0.53 cm and 0.49 cm. The diameter of 1 is about 0.53cm (consistent with the diameter of the F16 ordinary gastric tube); that is, the length of a to d in Figure 1 is about 90cm; the head end of the gastric tube body 1 is provided with a connecting part 2, which is used For connecting a drainage bag or a syringe, etc.;

The stomach tube body 1 is provided with an elastic part 3, the length of the elastic part 3 is about 20cm, that is, the length of b to c in FIG. 1 is about 20cm, and x to b in FIG. 55cm; the starting end of the elastic part 3 is about 60cm away from the head end of the gastric tube body, that is, the length of a to b in FIG. 1 is about 60cm; the elastic part 3 surrounds the entire circumference of the gastric tube body 1; and the gastric tube The outer circumference of the part of the body 1 where the elastic part 3 is arranged is slightly concave, and the elastic part 3 and the gastric tube body 1 leave a compartment 4; the diameter of the elastic part 3 after being inflated or filled with liquid is 1.0-1.2 cm , that is, the length of e to f in Figure 2 is about 1.0 to 1.2 cm;

It should be pointed out that in the drawings, due to the large difference between the diameter and the length of the components in this embodiment, in order to more clearly show the comparison between the elastic part 3 after inflation or liquid inflation and before inflation, it is not in accordance with the real scale For drawing, the length and diameter of each component are subject to the text description, and the scale of all drawings is only for highlighting, not the actual scale.

The gastric tube body 1 is also provided with a branch pipe 5, the branch pipe 5 communicates with the compartment 4, and a check valve 6 is arranged on the branch pipe 5, and the check valve 6 is in a natural state. Only allow gas or liquid to flow into branch pipe 5;

The gastric tube body 1 is also provided with an opening section 7, and the opening section 7 is provided with a through hole 8;

The opening section 7 is located near the tail end of the gastric tube body 1, and the elastic portion 3 is located between the connecting portion 2 and the opening section 7;

The stomach tube body 1 is provided with a scale 9; every 1cm is provided with a mark;

The use method of the gastric tube of the present embodiment (hereinafter referred to as "product A") is:

Step 1: The patient is under general anesthesia, a cannula is placed respectively, the left lateral lobe of the liver is lifted with a liver retractor or a lever, and an ultrasonic knife is used to cut from the middle of the greater curvature of the stomach to the angle of His (esophagogastric angle) close to the stomach wall Gastrocolic ligament and short blood vessels in the stomach;

Step 2: After fully dissociated, dissociate to the right along the greater curvature of the stomach, dissociate until 3-5 cm above the pylorus, insert product A through the nose until about 8 cm below the distal gastric antrum, and inflate the balloon for about 18 ml to make the elastic part fully Filling; the set scale 9 is convenient for medical staff to know how long it is when inserting product A, because the elastic part 3 should be stuck above the cardia to the pylorus; and the length of the esophagus and stomach cavity of the human body has a The approximate range, so that medical staff can know what to do and improve the accuracy and efficiency of the operation;

Step 3: Insert the cutting and stapler, start from 4 to 5 cm above the pylorus, and perform continuous cutting and anastomosis up to the angle of His, to complete 65% to 70% of the greater curvature of the gastrectomy, forming a tube with a diameter of about 2 cm (sleeve sleeve) stomach;

Step 4: Take out the resected stomach specimen;

There is no need to remove product A, just use a syringe to draw out the gas (or liquid) through the one-way valve 6, and product A is restored to an ordinary gastric tube, which is left in the patient's body; postoperative drainage and assistance are performed through the through hole 8 set at the end of the product. eat.

Example 2

Referring to FIGS. 4-6 , this embodiment is similar to Embodiment 1 except that the shape of the elastic portion 3 and the number of branch pipes 5 are different from those of Embodiment 1:

The elastic part 3 of this embodiment is still made of elastic rubber with a thinner thickness as in the first embodiment. However, the elastic part 3 of this embodiment does not surround the stomach tube body 1 for a whole circumference, but is on the outer circumference of the stomach tube body 1 Two independent elastic parts 3 are provided; the two elastic parts 3 are symmetrically arranged on the outer periphery of the gastric tube body 1, correspondingly, the number of the branch pipes 5 is also two, that is, independent inflation or liquid filling, the two elastic parts 3 are simultaneously After filling, the distance between g and h in Figure 5 is also 1.0-1.2 cm;

The operation mode of the product of this embodiment is also similar to that of the product of embodiment 1, except that the two elastic parts need to be inflated or filled with liquid respectively; In the same way, they also play the role of support tube in LSG surgery. When cutting the stomach wall, it plays the role of support and guidance, so as to avoid excessive cutting of the stomach wall, so as to avoid the narrowing of the stomach cavity.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection of the utility model.

Claims (6)

1. The utility model provides a stomach tube for operation is cut except that peritoneoscope stomach, includes stomach tube body (1), its characterized in that: the stomach tube comprises a stomach tube body (1), and is characterized in that a connecting part (2) is arranged at the head end of the stomach tube body (1), an elastic part (3) is arranged on the stomach tube body (1), the elastic part (3) is positioned at the periphery of the stomach tube body (1), a separation cavity (4) is reserved between the elastic part and the stomach tube body (1), a branch pipe (5) is further arranged on the stomach tube body (1), the branch pipe (5) is communicated with the separation cavity (4), and a check valve (6) is arranged on the branch pipe (5); still be provided with trompil section (7) on stomach tube body (1), be provided with through-hole (8) on trompil section (7), trompil section (7) are located the position that is close to stomach tube body (1) tail end, elasticity portion (3) are located between connecting portion (2) and trompil section (7).

2. The gastric tube for the laparoscopic partial gastrectomy of claim 1, wherein: the elastic part (3) surrounds the whole periphery of the stomach tube body (1), and the branch tube (5) is one.

3. The gastric tube for the laparoscopic partial gastrectomy of claim 1, wherein: the stomach tube is characterized in that the elastic parts (3) are at least one independent elastic part, the elastic parts (3) are uniformly distributed on the periphery of the stomach tube body (1), and the number of the branched pipes (5) is the same as that of the elastic parts (3).

4. The gastric tube for the laparoscopic partial gastrectomy of claim 1, wherein: the stomach tube body (1) surface is provided with the scale, and every 1cm sets up a mark.

5. The gastric tube for the laparoscopic partial gastrectomy of claim 1, wherein: stomach tube body (1) length is 90 ~ 120cm, elasticity portion (3) length is 20 ~ 30cm, elasticity portion (3) are close to the one end of stomach tube body (1) head end and apart from stomach tube body (1) head end 60 ~ 80 cm.

6. The gastric tube for the laparoscopic partial gastrectomy of claim 1, wherein: the diameter of the expanded elastic part (3) is 1.0-1.2 cm.

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