KR101065368B1 - Stent for an obesity patient treatment - Google Patents

Abstract

The present invention relates to a stent for treating obese patients who can suppress the increase of obesity by reducing the nutritional intake by allowing food to be digested and nutrient intake only in the small intestine after moving directly to the small intestine without remaining in the stomach and duodenum. In more detail, one or more strands of superelastic shape memory alloy, such as a stent wire for weaving the stents weaving or cross each other to form a space portion, the upper and lower ends of the cylindrical body formed with a plurality of bent ends along the circumference In the shape memory alloy stent to which the medical film is bonded to the inside of the shape, the cylindrical shape of the shape memory alloy stent to the lower end of the cylindrical tube is connected to each other by fastening lines, the upper and lower ends of the shape memory alloy stent Insertion is inserted into the main entrance of the entrance and the entrance gate of the exit. The base tube is inserted into the lumen of the duodenum to allow food to move directly to the small intestine along the shape memory alloy stent and tube, and digestion is absorbed to reduce nutrient absorption in the stomach and duodenum.

Stent, Obesity, Biodegradable Polymer, Duodenum, Hook, Stomach, Gastrectomy

Description

Stent for an obesity patient treatment

The present invention relates to a stent for treating obese patients, in particular, the food is not in the stomach and duodenum go directly to the small intestine after digestion and nutrient intake is made only in the small intestine to reduce the nutrient intake rate to suppress the increase in obesity A stent for the treatment of obese patients.

In general, high obesity is medically calculated by dividing one's body weight by the square of height (kg / m2), and the body mass index is 30 or more.

In addition, in the case of Asians with simple weight, visceral fat rate, abdominal fat rate, body fat rate is examined in detail and finally diagnosed.

In this way, if the high obesity is severely adversely affected by the patient, the risk of developing diabetes, hypertension, hyperlipidemia, fatty liver, etc., which can be referred to as a typical obesity complication.

Of course, the incidence of these diseases, as well as the resulting mortality rate, is sharply increased compared to simple obesity, and in terms of weight loss, overweight obesity is rapidly reduced compared to those who are overweight to succeed in losing weight with news and exercise. .

Statistically, people with high obesity are more likely to try radical and extreme weight loss programs than those who are overweight and thus have a much higher chance of developing a yo-yo.

If these patients with high obesity have a history of failing conservative treatments such as diet, exercise, behavior, and habit correction, they have a body mass index of 30 or higher, and diabetes, hypertension, hypercholesterolemia, fatty liver, and arthritis caused by obesity In the case of acute obesity, sleep apnea, and BMI of 35 or higher, obesity, severe pathological abdominal obesity, which is a characteristic form of Asian obesity, should also be considered as a surgical consideration.

In other words, a surgical method, gastrectomy, is used. Gastrectomy reduces the area of the Taiwan where the stomach is stretched along a small curve, leaving the anterior antrum (lower part) that plays an important digestive function. The method is used.

If the gastrectomy is performed, a small amount of food can easily result in satiety, resulting in a decrease in the amount of food to be eaten, resulting in overeating and binge eating.

However, the above-described gastrectomy is mainly inconvenient to be hospitalized or hospitalized after surgery, vomiting and diarrhea, abdominal hernia and infection, pneumonia, respiratory disease, etc. If the gastric juice leaks due to this wrong problem is also occurring.

In addition, the medical costs increase accordingly, there is a problem that the additional cost burden due to complications than the obesity treatment surgery and six months follow-up treatment costs.

Therefore, the present invention has been made in view of the problems of the prior art as described above, so that the ingested food is not digested and absorbed in the stomach or duodenum, but is digested and absorbed only in the small intestine, thereby reducing nutrient intake and increasing obesity. It is an object to provide a stent for treating obese patients that can prevent.

In addition, another object of the present invention is to install a hook on the upper and lower ends of the stent so that the stent is not separated by the movement or load of food and the hook is decomposed in the body after a certain time to facilitate removal.

In addition, another object of the present invention is to make the length of the stent or the length of the tube to penetrate the stomach, penetrating the duodenum so that food does not remain in the stomach or duodenum.

In order to achieve the above object, the present invention forms a space portion by weaving stent wires such as one or more strands of superelastic shape memory alloy, or by intersecting them with a jig zag, and a plurality of bent ends are formed at upper and lower ends. In the shape memory alloy stent to which the medical film is bonded to the interior of the cylindrical body formed along the, the cylindrical shape of the shape memory alloy stent to the lower end of the cylindrical body is connected to each other with a fastening line, the image of the shape memory alloy stent The lower end is inserted into the upper inlet and the outlet into the pylorus, and the tube is inserted into the duodenum lumen so that the food moves directly along the shape memory alloy stent and tube into the small intestine. Absorption to reduce nutrient absorption in the stomach and duodenum It provides for the treatment of obese patients with a stent.

As described above, the present invention does not digest and absorb nutrients in the stomach or duodenum, so that digestion and nutrient absorption are achieved only in the small intestine, thereby reducing the nutrient intake and preventing an increase in obesity.

In addition, the hook is installed at the upper and lower ends of the stent so that the stent is not separated by the movement or the load of the food, and the hook is decomposed in the body after a certain time to facilitate the removal.

In addition, the length of the stent or the length of the tube penetrates the stomach, penetrating the duodenum to have the effect that the food does not remain in the stomach or duodenum.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

The obesity patient treatment stent of the present invention to the anti-obesity stent (100A) and the shape memory alloy stent (10) to which the hook hook 30 is connected to the shape-memory alloy stent (10) to weave the wire 11 The obesity prevention stent 100B to which the tube 20 is connected is as follows.

As shown in Figures 1 and 6, the anti-obesity stent (100A) is composed of a shape memory alloy stent 10 of the length that can pass through the stomach 203 of the stomach (200).

Here, the shape memory alloy stent 10 is formed of a space portion 12 by weaving the stent manufacturing wires 11, such as one or more strands of superelastic shape memory alloy, or cross each other with a zig zag. At the bottom, a plurality of bent ends 13 are formed by adhering the medical coating 15 to the inside of the cylindrical body 14 formed along the circumference.

At this time, the cylindrical body 14 of the shape memory alloy stent 10 is formed to a length that can pass through the body (203: 203) of the body of the stomach 200 so that food does not remain inside the stomach (200). Configure it to pass through.

As shown in FIGS. 2, 3, and 7, the anti-obesity stent 100B includes a shape memory alloy stent 10 and a tube 20.

Here, the shape memory alloy stent 10 is formed of a space portion 12 by weaving the stent manufacturing wires 11, such as one or more strands of superelastic shape memory alloy, or cross each other with a zig zag. At the bottom, a plurality of bent ends 13 are formed by adhering the medical coating 15 to the inside of the cylindrical body 14 formed along the circumference.

At this time, the cylindrical body 14 of the shape memory alloy stent 10 is formed to a length that can pass through the gastric body (胃 體: 203) of the body of the stomach (200) so that food does not remain inside the stomach (200) Configure it to pass through.

In addition, the tube 20 has a flexible and thin cylindrical shape at the lower end of the cylindrical body 14 of the shape memory alloy stent 10 and is woven together by a fastening line 21.

In this case, the tube 20 will be configurable to connect to the lower end or the upper end of the cylindrical body 14 of the shape memory alloy stent 10 as well as the length.

In addition, the tube 20 is formed by the length of the lumen of the duodenum 300 located up to the front of the pylorus 201 and the bile duct 400 of the stomach 200 so that food can pass without remaining inside the duodenum 300. Configure it to be.

Such, the tube 20 is made of polytetrafluoroethylene (PTFE) is configured so that food is moved smoothly without being deposited on the surface.

In addition, the upper and lower ends of the cylindrical body 14 of the shape memory alloy stent 10 constituting the anti-obesity stent 100A, 100B, the shape memory alloy stent to be caught by the powder 201 and the pyloric 202 The bent end 13 of (10) is connected by a connecting line 31 made of a biodegradable polymer component to protrude outward from the hook 30 made of a biodegradable polymer component.

That is, the shape memory alloy stent 10 is caught by the hook 30 so as not to be separated from the mortar 201 and the pyloric 202 by the movement or load of food, and after a certain time (about 6 months) The hook 30 is configured to be biodegradable to facilitate removal of the shape memory alloy stent 10.

In addition, the biodegradable polymers include polylactic acid (PLLA), polylactic acid (PLA), polyglycolic acid (PGA), polyglycolide-co-l-lactide acid (PGLA), polydioxanone (PDO), and polyglycol (PGCL). glycolide-co-caprolactone) is composed of one or two or more selected from each other.

That is, the anti-obesity stent 100A and 100B are inserted into the upper and lower ends of the shape memory alloy stent 10 into the main entrance (문: 201) and the exit pyloric (幽門: 202) of the upper 200. Perform a jam.

In addition, the tube 20 is inserted into the lumen of the duodenum 300.

As shown in Figure 4 and 8, as another embodiment of the anti-obesity stent (100B) the cylindrical body 14 of the shape of the enterprise alloy stent 10 is formed short, the stomach 203 of the stomach 200 The end facing toward) is extended so that the diameter can be extended to the outside so as to be supported by the pylorus 202 of the stomach 200, and the tube 20 may be configured to be positioned inside the lumen of the duodenum 300.

As shown in Figure 5 and 9, as another embodiment of the anti-obesity stent (100B) is formed by extending both ends of the shape enterprise alloy stent 10 larger than the diameter of the cylindrical body (14) The procedure is supported to support the powder 201 and the pylori 202 of the 200, the tube 20 may be configured to be located inside the lumen of the duodenum (300).

The procedure and action of the anti-obesity stent 100A and the anti-obesity stent 100B of the present invention configured as described above are as follows.

1. As shown in Figures 1 and 6, the anti-obesity stent (100A) is hooked to the bent end (13) formed at the upper and lower ends of the cylindrical body 14 of the shape memory alloy stent (10) 30 is connected so as to protrude outward to the connecting line (31).

Next, the volume of the shape memory alloy stent 10 is reduced and inserted into a separate surgical catheter (not shown).

Thereafter, the catheter is inserted to pass through the body 201 of the stomach 200 of the human body using a laparoscopic procedure.

Then, the catheter is continuously passed across the space of the stomach 203 of the stomach 200 and passed through the pylorus 202 of the stomach 200 to prevent the obesity prevention stent 100A from the front of the bile duct 400. Withdraw from inside the site.

At this time, the lower end of the shape memory alloy stent 10 is withdrawn to be positioned in the pyloric 202 portion of the upper 200 so that the lower end is caught by the hook (30).

On the other hand, while the shape memory alloy stent 10 is continuously drawn out and the cylindrical body 14 is drawn out to cross the space of the stomach 203 of the stomach 200, the upper end is drawn out to be inserted into the powder 201 hook After the upper end is caught by 30, the catheter is removed and the procedure is completed.

When the anti-obesity stent (100A) is ingested and then eaten, the food moves along the esophagus of the human body to be directly moved to the small intestine along the shape memory alloy stent (10) and digested and absorbed.

At this time, the shape memory alloy stent 10 by the hook 30 is locked to the powder 201 and the pyloric 202 can be prevented from being separated or struck by the movement or load of food.

2. As shown in Figures 2 and 3, 7, the anti-obesity stent (100B) fastening the tube 20 to the lower end of the cylindrical body 14 of the shape memory alloy stent 10 (21) Weave and connect with), and connects the hook 30 to the bent end 13 so as to protrude outward with the connecting line 31.

Next, the volume of the shape memory alloy stent 10 and the tube 20 is reduced and inserted into a separate surgical catheter (not shown).

Thereafter, the catheter is inserted to pass through the body 201 of the stomach 200 of the human body using a laparoscopic procedure.

Then, the catheter is continuously passed across the space of the stomach 203 of the stomach 200 and passed through the pylorus 202 of the stomach 200 to prevent the obesity prevention stent 100A from the front of the bile duct 400. Withdraw from inside the site.

At this time, the tube 20 is drawn out to be located inside the lumen of the duodenum 300, and when the withdrawal of the tube 20 is completed, the lower end of the shape memory alloy stent 10 is the pyloric 202 portion of the upper 200. The lower end is hooked by the hook 30 so as to be located at.

On the other hand, while the shape memory alloy stent 10 is continuously drawn out, the cylindrical body 14 is drawn out to cross the space of the stomach 203 of the stomach 200, and the upper end is drawn out to be inserted into the powder 201. After the upper end is hooked by the hook 30, the catheter is removed and the procedure is completed.

When the food is ingested after the anti-obesity stent 100A is performed, the food moves along the esophagus of the human body to be directly moved to the small intestine along the shape memory alloy stent 10 and the tube 20 and digested and absorbed. .

At this time, the shape memory alloy stent 10 by the hook 30 is locked to the powder 201 and the pyloric 202 can be prevented from being separated or struck by the movement or load of food.

In addition, the hook 30 and the connection line 31 are made of a biodegradable polymer so that when a certain period of time passes, the hook 30 and the connection line 31 are biodegraded in the human body so as not to engage in the removal of the shape memory alloy stent 10.

As such, the food passing through the shape memory alloy stent 10 and the tube 20 is discharged into the small intestine and is partly digested by the bile secreted from the bile duct 400 to absorb nutrients into the small intestine and some to the large intestine. Done.

As a result, obesity may be lowered by reducing nutrient absorption in the stomach 200 and duodenum 300.

In addition, as another embodiment of the anti-obesity stent 100A is formed to form a short length of the shape of the enterprise alloy stent 10 is to be supported on the pyloric 202 of the stomach 200, the tube 20 is duodenum 300 To be located inside the lumen of the cavity.

On the other hand, as another embodiment of the anti-obesity stent (100A) is formed by extending both ends of the shape of the enterprise alloy stent (10) larger than the diameter of the cylindrical body 14, the main body 201 and pyloric of the stomach (200) The procedure is supported to 202, the tube 20 is to be located inside the lumen of the duodenum (300).

As shown in Figure 4 and 8, as another embodiment of the anti-obesity stent (100B) the cylindrical body 14 of the shape of the enterprise alloy stent 10 is formed short, the stomach 203 of the stomach 200 The end facing toward) is extended so that the diameter can be extended to the outside to be supported by the pylorus 202 of the stomach 200, and the tube 20 is disposed to be located inside the lumen of the duodenum 300.

That is, the end toward the gastric body 203 is formed with a diameter larger than the diameter of the cylindrical body 14 is caught at the entrance of the pylorus 202, obesity by moving the food from the gastric body 203 to the duodenum 300 It is to prevent the prevention stent (100B) is moved.

As shown in Figure 5 and 9, as another embodiment of the anti-obesity stent (100B) is formed by extending both ends of the shape enterprise alloy stent 10 larger than the diameter of the cylindrical body (14) The procedure is performed to be supported by the powder 201 and the pyloric 202 of the 200, and the tube 20 is performed to be located inside the lumen of the duodenum 300.

In the above, the present invention has been illustrated and described with reference to specific preferred embodiments, but the present invention is not limited to the above-described embodiments and is not limited to the spirit of the present invention. Various changes and modifications can be made by those who have

1 is a perspective view of a stent for treating obese patients according to the present invention,

2 is an exploded perspective view of an anti-obesity stent using a shape memory alloy stent according to the present invention;

3 is a perspective view of the combination of FIG.

Figure 4 is a combined perspective view of the anti-obesity stent using the shape memory alloy stent to be treated only in the pyloric region above,

5 is a perspective view of the obesity prevention stent using both ends of the shape memory alloy stent,

6 is an exemplary view of the procedure of FIG. 1;

7 is an exemplary view of the procedure of FIG. 3,

8 is an exemplary view of the procedure of FIG. 4;

9 is an exemplary view of the procedure of FIG. 5.

<Description of Symbols for Main Parts of Drawings>

10: shape memory alloy stent 11: wire

12: space portion 13: bending section

14 cylindrical body 15 film

20 tube 21 fastening line

30: hook 31: connecting line

100A, 100B: Obesity Prevention Stent

200: above 201: body

202: pyloric 300: duodenum

400: bile duct

Claims (10)

One or more strands of stent manufacturing wire 11 such as superelastic shape memory alloy are woven together or intersected with a jig to form a space portion 12, and a plurality of bent ends 13 are formed at upper and lower ends thereof. In the shape memory alloy stent 10 to which the medical film 15 is bonded to the inside of the cylindrical body 14 formed along the, The cylindrical body 14 of the shape memory alloy stent 10 is formed to a length that can pass through the body (203: 203), the body of the stomach 200, Hook 30 made of a biodegradable polymer component at the bent end 13 of the shape memory alloy stent 10 to be caught on the inner wall of the powder 201 at the upper end of the cylindrical body 14 of the shape memory alloy stent 10 ) Is connected by a connecting line 31 made of a biodegradable polymer component so as to protrude outwards, The shape memory alloy stent 10 is caught by the hook 30 so as not to be separated from the body 201 by the movement or load of food, the hook 30 is biodegraded after a certain time, the shape memory alloy stent ( 10) is configured to facilitate removal, The upper and lower ends of the shape memory alloy stent 10 are inserted into and pulled into the inlet (문: 201), which is the inlet of the upper 200, and the pyloric (幽門: 202), which is the outlet, so that food does not remain in the body 203. The stent for treating obese patients configured to reduce the absorption of nutrients in the stomach (200) by moving directly to the small intestine along the shape memory alloy stent (10) to reduce digestion. delete The biodegradable polymer component according to claim 1, wherein the lower end of the cylindrical body 14 of the shape memory alloy stent 10 is attached to the bent end 13 of the shape memory alloy stent 10 so as to be hooked to the inner wall of the pyloric 202. By connecting the hook 30 is made of a biodegradable polymer component so as to protrude outward, so that the shape memory alloy stent 10 is not separated from the pyloric 202 by the movement or load of food. The stent is caught by the hook 30, the stent for treating obese patients configured to facilitate the removal of the shape memory alloy stent 10 by the biodegradable hook 30 over a certain time. According to claim 2 or 3, wherein the biodegradable polymer is poly L-lactic acid (PLLA), Poly lactic acid (PLA), Polyglycolic acid (PGA), Poly glycolide-co-L- lactide acid (PGLA), PDO Stent for treating obese patients, characterized in that the mixture of one or two or more selected from Polydioxanone) and PGCL (Poly glycolide-co-caprolactone). One or more strands of stent manufacturing wire 11 such as superelastic shape memory alloy are woven together or intersected with a jig to form a space portion 12, and a plurality of bent ends 13 are formed at upper and lower ends thereof. In the shape memory alloy stent 10 to which the medical film 15 is bonded to the inside of the cylindrical body 14 formed along the, The cylindrical body 14 of the shape memory alloy stent 10 is formed to a length that can pass through the body (203: 203), the body of the stomach 200, At the lower end of the cylindrical body 14 of the shape memory alloy stent 10 is flexible and has a thickness formed by the lumen length of the duodenum 300 positioned up to the front of the pylorus 201 and the bile duct 400 of the stomach 200. Thin tubular tube 20 is connected to each other by fastening lines 21, Hook 30 made of a biodegradable polymer component at the bent end 13 of the shape memory alloy stent 10 to be caught on the inner wall of the powder 201 at the upper end of the cylindrical body 14 of the shape memory alloy stent 10 ) Is connected by a connecting line 31 made of a biodegradable polymer component so as to protrude outwards, The shape memory alloy stent 10 is caught by the hook 30 so as not to be separated from the body 201 by the movement or load of food, the hook 30 is biodegraded after a certain time, the shape memory alloy stent ( 10) is configured to facilitate removal, The upper and lower ends of the shape-memory alloy stent 10 are inserted into and closed at the inlet (噴 門: 201) and the pyloric (의: 202) as the inlet of the stomach 200, and the tube 20 is duodenum ( 300) by inserting into the lumen, the food is moved to the small intestine and absorbed directly into the small intestine without remaining in the stomach 200 and the duodenum 300 along the shape memory alloy stent 10 and the tube 20; A stent for treating obese patients configured to reduce nutritional absorption rate in the duodenum 300 so that obesity may be lowered. The stent for treating obese patients according to claim 5, wherein the cylindrical body (14) of the shape memory alloy stent (10) is formed so as to be shortened to be limited to the pylorus (202) and has one end of which the diameter is extended outward. delete The biodegradable polymer component according to claim 5, wherein the lower end of the cylindrical body (14) of the shape memory alloy stent (10) is bent at the bent end (13) of the shape memory alloy stent (10) so as to be hooked to the inner wall of the pyloric (202). By connecting the hook 30 is made of a biodegradable polymer component so as to protrude outward, so that the shape memory alloy stent 10 is not separated from the pyloric 202 by the movement or load of food. The stent is caught by the hook 30, the stent for treating obese patients configured to facilitate the removal of the shape memory alloy stent 10 by the biodegradable hook 30 over a certain time. The method of claim 7 or 8, wherein the biodegradable polymer is polyl-lactic acid (PLLA), polylactic acid (PLA), polyglycolic acid (PGA), poly glycolide-co-L-lactide acid (PGLA), PDO Stent for treating obese patients, characterized in that the mixture of one or two or more selected from Polydioxanone) and PGCL (Poly glycolide-co-caprolactone). The stent for treating obese patients according to claim 5, wherein the tube (20) is made of polytetrafluoroethylene (PTFE).

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