External drainage device for intestinal obstruction and use method therefor

Abstract

Disclosed are an external drainage device for intestinal obstruction and a use method therefor, belonging to the technical field of medical devices, and solving the problems in the prior art that an air bag may slide out of a support tube during use, and the support tube cannot be synchronously disintegrated. The present invention comprises a support tube fixed in the intestinal tract at the front end of an anastomotic stoma, a blocking mechanism arranged in the support tube and used for blocking the circulation of intestinal contents and preventing the intestinal contents from flowing through the inner wall of the support tube, a limiting mechanism arranged on the inner wall of the support tube and used for preventing the blocking mechanism from sliding, and disintegration mechanisms respectively arranged at two ends of the support tube and used for synchronous disintegration of the support tube and the limiting mechanism. In the present invention, the limiting mechanism is arranged on the inner wall of the support tube, and the limiting mechanism abuts against one end of the blocking mechanism, so as to prevent the contents from passing through the anastomotic stoma when the blocking mechanism slips off during use, and the support tube is left in the intestinal tract to self-disintegrate. The support tube is provided with the disintegration mechanisms, and the disintegration mechanisms can facilitate synchronous disintegration of other parts of the external drainage device for intestinal obstruction.

Description

An intestinal obstruction external drainage device and its usage method Technical Field

[0001] 0001. This invention belongs to the field of medical device technology, specifically relating to an intestinal obstruction external drainage device and its usage method. Background Technology

[0002] 0002. The incidence of anastomotic leakage varies depending on the anastomotic site, anastomosis method, technique, and the patient's underlying diseases. The incidence of anastomotic leakage after rectal surgery can be as high as approximately 20%. Therefore, during the anastomotic recovery process, it is necessary to intervene in the flow of intestinal contents to prevent adverse effects on anastomotic healing. Traditionally, a colostomy is used to divert intestinal contents. An opening is made in the patient's abdominal wall, a section of intestine is pulled out, and the intestinal segment is cut and fixed to complete the colostomy, allowing intestinal contents to flow out through the abdominal wall opening, thereby protecting the distal anastomosis. However, this method requires a second surgery after the intestinal anastomosis has healed to suture the colostomy segment and reinsert it into the abdominal cavity. This not only increases patient suffering but also consumes a significant amount of medical resources.

[0003] 0003. In traditional methods, the combined use of a stent and drainage tube can drain intestinal contents while protecting the anastomosis. During use, the drainage tube is axially inserted through the hollow cavity of the stent. The user adjusts the amount of liquid and gas in the tightly fixed balloon on the drainage tube to seal the inner wall of the stent. However, during intestinal activity and the discharge of intestinal contents, the drainage tube may be compressed and slip out of the stent cavity. This causes the stent to come into direct contact with the intestinal contents over a large area, unexpectedly accelerating the stent's disintegration process. This can lead to the unhealed anastomosis directly contacting the intestinal contents, causing serious consequences such as intestinal leakage. Therefore, to prevent premature slippage, the stent's inner and outer sides near the axial ends are designed with "protrusions" to hinder the balloon from sliding relative to the stent and the stent from the intestinal lumen. Because the stent ends inevitably come into contact with intestinal contents or fluid, this contact accelerates the disintegration of the stent ends. Simultaneously, the protrusions at both ends increase the equivalent thickness of the middle part of the stent, preventing the protrusions from disintegrating synchronously with the stent (as shown in Figure 6). This can lead to uncontrollable complications and even endanger the patient's life. Summary of the Invention

[0004] 0004. The present invention provides an intestinal anastomosis protection device and its method of use, so as to at least solve some of the above-mentioned technical problems.

[0005] 0005. To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] An intestinal anastomosis protection device includes a support tube fixed in the intestinal tract at the anastomosis front end, a blocking mechanism disposed in the support tube to block the flow of intestinal contents and prevent intestinal contents from flowing through the inner wall of the support tube, a limiting mechanism disposed on the inner wall of the support tube to prevent the blocking mechanism from sliding, and a disintegration mechanism disposed at both ends of the support tube for the synchronous disintegration of the support tube and the limiting mechanism.

[0007] 0006. Further, the limiting mechanism includes a limiting ring plate disposed on the inner wall of the support tube and in contact with the end of the blocking mechanism.

[0008] 0007. Furthermore, the outer wall of the limiting ring plate and the inner wall of the support tube form an acute angle.

[0009] 0008. Further, the disintegration mechanism includes several disintegration grooves evenly distributed on the support tube, wherein the disintegration groove at one end of the support tube passes through the limiting mechanism and divides the limiting mechanism into several parts.

[0010] 0009. Furthermore, the outer wall of the support tube is provided with an arc-shaped boss located between two adjacent disintegration grooves.

[0011] 0010. Furthermore, a wire hole is provided at each end of the support tube.

[0012] 0011. Further, the blocking mechanism includes a drainage tube disposed inside the support tube and extending out of the body from the anus along the intestine for draining intestinal contents to the outside, an air bladder disposed on the outer wall of the drainage tube and tightly fitted with the limiting mechanism after expansion, and a media delivery tube disposed inside the drainage tube with one end connected to the air bladder and the other end connected to the external media delivery mechanism.

[0013] 0012. Further, the guide tube is provided with a hemispherical plug, and the plug has an inlet for intestinal contents that is connected to the guide tube and allows intestinal contents to pass through; the inlet for intestinal contents is located upstream of the support tube.

[0014] 0013. Furthermore, the support tube and the limiting mechanism are made of polycaprolactone.

[0015] 0014. A method of using an intestinal anastomosis protection device, comprising the following steps:

[0016] S1. Place the support tube into the intestine at the anterior end of the anastomosis.

[0017] S2. Use sutures to pass through the suture holes at both ends of the support tube and suture the support tube to fix it in the intestine;

[0018] S3. Connect one end of the medium delivery pipe inside the guide tube to the airbag and the other end to the external medium delivery mechanism.

[0019] S4. Insert the airbag into the support tube;

[0020] S5. Open the medium inlet and outlet valves on the medium delivery pipe. The external medium delivery mechanism delivers the medium to the air bladder through the medium delivery pipe, causing the air bladder to inflate. After inflating, the outer wall of the air bladder fits tightly against the wall of the support pipe, and one end of the air bladder contacts the limiting ring plate.

[0021] S6. After the airbag inflates, close the external conveying mechanism and the medium inlet / outlet valve, and disconnect the external conveying mechanism from the conveying mechanism.

[0022] S7. After the anastomosis is restored, open the medium inlet / outlet valve to release the medium in the balloon, causing the balloon to shrink. Pull the balloon and drainage tube in the intestine out of the anus and out of the body, while the support tube remains in the intestine to degrade on its own.

[0023] S8. When the support tube disintegrates, the support tube, the limiting ring plate and the arc-shaped boss disintegrate simultaneously because the support tube is provided with a disintegration groove.

[0024] 0015. Compared with the prior art, the present invention has the following beneficial effects:

[0025] This invention features a simple structure, a scientifically sound design, and convenient use. The support tube is fixed within the intestine at the anastomosis site, while the blocking mechanism is located within the support tube. This blocking mechanism prevents intestinal contents from passing through the anastomosis, thus protecting the anastomosis, facilitating its recovery, reducing the incidence of anastomotic complications, and not affecting the patency of the intestine itself. Furthermore, after the anastomosis has healed, the blocking mechanism can be pulled out of the intestinal lumen through the anus, further aiding in recovery. A limiting mechanism is located inside the support tube. When the outer wall of the blocking mechanism seals against the inner wall of the support tube, one end of the blocking mechanism abuts against the limiting mechanism, preventing the blocking mechanism from slipping out of the support tube during use and reducing the risk of intestinal contents passing through the anastomosis.

[0026] 0016. The support tube of the present invention remains in the intestine and degrades on its own. Since both ends of the support tube are equipped with disintegration mechanisms, the disintegration mechanisms can make the support tube and the limiting mechanism disintegrate synchronously, thereby reducing the risk of inconsistent disintegration speeds between the support tube and the limiting mechanism. Attached Figure Description

[0027] 0017. Figure 1 is a schematic diagram of the structure of the present invention.

[0028] 0018. Figure 2 is a cross-sectional view of the present invention.

[0029] 0019. Figure 3 is a schematic diagram of the support tube of the present invention.

[0030] 0020. Figure 4 is a cross-sectional view of the guide tube of the present invention.

[0031] 0021. Figure 5 is a schematic diagram of the disintegration of the support tube of the present invention.

[0032] 0022. Figure 6 is a schematic diagram of the disintegration of the present invention without a disintegration mechanism.

[0033] 0023. The names corresponding to the reference numerals in the attached drawings are:

[0034] 1. Support tube; 3. Limiting ring plate; 4. Disintegration groove; 5. Arc-shaped boss; 7. Threading hole; 8. Guide tube; 9. Airbag; 10. Medium delivery tube; 11. Plug; 12. Intestinal contents inlet; 13. Medium inlet / outlet valve; 14. Raised edge. Detailed Implementation

[0035] 0024. To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] 0025. In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] 0026. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; of course, they can also refer to a mechanical connection or an electrical connection; furthermore, they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0038] 0027. As shown in Figures 1-5, the present invention provides an intestinal anastomosis protection device, comprising a support tube 1 fixed in the intestinal tract at the anastomosis front end, a blocking mechanism disposed in the support tube 1 for blocking the flow of intestinal contents and preventing intestinal contents from flowing through the inner wall of the support tube 1, a limiting mechanism disposed on the inner wall of the support tube 1 for preventing the blocking mechanism from sliding, and a disintegration mechanism disposed at both ends of the support tube 1 for the synchronous disintegration of the support tube 1 and the limiting mechanism.

[0039] 0028. The present invention provides a support tube 1 fixed inside the intestine at the anastomosis site. A blocking mechanism is located inside the support tube 1. The blocking mechanism blocks the intestinal contents at the front end of the support tube 1 and simultaneously drains the contents blocked at the front end of the support tube 1 out of the body through the blocking mechanism, preventing intestinal contents from passing through the anastomosis site, protecting the intestinal anastomosis site, facilitating anastomosis recovery, reducing the incidence of anastomosis complications, and not affecting the patency of the intestine itself. After the intestinal anastomosis site recovers, the blocking mechanism can be pulled out of the intestinal lumen through the anus, thus facilitating the recovery of the intestinal anastomosis site. A limiting mechanism is located inside the support tube 1. When the outer wall of the blocking mechanism is sealed with the inner wall of the support tube 1, one end of the blocking mechanism abuts against the limiting mechanism, preventing the blocking mechanism from slipping out of the support tube 1 during use, reducing the risk of intestinal contents passing through the anastomosis site. Since the support tube 1 remains in the intestine and degrades on its own after the anastomosis site recovers, and since both ends of the support tube 1 are provided with disintegration mechanisms, the disintegration mechanisms can make the support tube 1 and the limiting mechanism disintegrate synchronously, thereby reducing the risk of inconsistent disintegration speeds between the support tube 1 and the limiting mechanism.

[0040] 0029. As shown in Figures 1-5, the present invention provides an intestinal anastomosis protection device, comprising a support tube 1 fixed in the intestinal tract at the anastomosis front end, a blocking mechanism disposed in the support tube 1 for blocking the flow of intestinal contents and preventing intestinal contents from flowing through the inner wall of the support tube 1, a limiting mechanism disposed on the inner wall of the support tube 1 for preventing the blocking mechanism from sliding, and a disintegration mechanism disposed at both ends of the support tube 1 for the synchronous disintegration of the support tube 1 and the limiting mechanism.

[0041] 0030. The limiting mechanism includes a limiting ring plate 3 disposed on the inner wall of the support tube 1 and in contact with the end of the blocking mechanism.

[0042] 0031. Based on Embodiment 1, this Embodiment 2 provides a more preferred structure for the limiting mechanism, specifically: the limiting mechanism includes a limiting ring plate 3 disposed on the inner wall of the support tube 1 and in contact with the end of the blocking mechanism.

[0043] 0032. The limiting ring plate 3 of the present invention is disposed on the inner wall of the support tube 1. The limiting ring plate 3 and the support tube 1 are integral structures. When in use, after the blocking mechanism expands, the outer wall of the blocking mechanism abuts against the inner wall of the support tube 1 to seal it. At the same time, one end of the blocking mechanism contacts the end of the limiting ring plate 3, thereby limiting the blocking mechanism with the limiting ring plate 3, preventing the blocking mechanism from sliding out of the support tube 1 during use, thereby preventing intestinal contents from passing through the anastomosis.

[0044] 0033. As shown in Figures 1-5, the present invention provides an intestinal anastomosis protection device, comprising a support tube 1 fixed in the intestinal tract at the anastomosis front end, a blocking mechanism disposed in the support tube 1 for blocking the flow of intestinal contents and preventing intestinal contents from flowing through the inner wall of the support tube 1, a limiting mechanism disposed on the inner wall of the support tube 1 for preventing the blocking mechanism from sliding, and a disintegration mechanism disposed at both ends of the support tube 1 for the synchronous disintegration of the support tube 1 and the limiting mechanism.

[0045] 0034. The limiting mechanism includes a limiting ring plate 3 disposed on the inner wall of the support tube 1 and in contact with the end of the blocking mechanism.

[0046] 0035. The outer wall of the limiting ring plate 3 and the inner wall of the support tube 1 form an acute angle.

[0047] 0036. Based on Example 2, this embodiment 3 provides a more preferred structure for the limiting ring plate 3, specifically: the outer wall of the limiting ring plate 3 and the inner wall of the support tube 1 form an acute angle.

[0048] 0037. The outer wall of the limiting ring plate 3 and the inner wall of the support tube 1 of the present invention form an acute angle, which can effectively reduce the thickness of the limiting ring plate 3, making it easier for the limiting ring plate 3 and the support tube 1 to disintegrate synchronously. At the same time, when the blocking mechanism is placed in the support tube 1, the limiting ring plate 3 can also guide the blocking mechanism, thereby making it easier for the blocking mechanism to be placed in the support tube 1.

[0049] 0038. As shown in Figures 1-5, the present invention provides an intestinal anastomosis protection device, comprising a support tube 1 fixed in the intestinal tract at the anastomosis front end, a blocking mechanism disposed in the support tube 1 for blocking the flow of intestinal contents and preventing intestinal contents from flowing through the inner wall of the support tube 1, a limiting mechanism disposed on the inner wall of the support tube 1 for preventing the blocking mechanism from sliding, and a disintegration mechanism disposed at both ends of the support tube 1 for the synchronous disintegration of the support tube 1 and the limiting mechanism.

[0050] 0039. The disintegration mechanism includes several disintegration grooves 4 evenly distributed on the support tube 1, wherein the disintegration groove 4 at one end of the support tube 1 passes through the limiting mechanism and divides the limiting mechanism into several parts.

[0051] 0040. Based on Example 1, this embodiment 4 provides a more preferred structure for the disintegration mechanism, specifically: the disintegration mechanism includes a plurality of disintegration grooves 4 evenly distributed on the support tube 1, wherein the disintegration groove 4 at one end of the support tube 1 passes through the limiting mechanism and divides the limiting mechanism into a plurality of parts.

[0052] 0041. Preferably, there are six disintegration grooves 4 in this invention. The six disintegration grooves 4 are evenly distributed on the support tube 1, and the disintegration groove 4 on one end of the support tube 1 is provided through the limiting ring plate 3, thereby dividing the limiting ring plate 3 into six parts. This allows the limiting ring plate 3 to disintegrate synchronously with the support tube 1. When the support tube 1 is retained in the intestine, the support tube 1 disintegrates over time. Since the disintegration grooves 4 are distributed on both the support tube 1 and the limiting ring plate 3, the support tube 1 and the limiting ring plate 3 can disintegrate synchronously.

[0053] 0042. As shown in Figures 1-5, the present invention provides an intestinal anastomosis protection device, comprising a support tube 1 fixed in the intestinal tract at the anastomosis front end, a blocking mechanism disposed in the support tube 1 for blocking the flow of intestinal contents and preventing intestinal contents from flowing through the inner wall of the support tube 1, a limiting mechanism disposed on the inner wall of the support tube 1 for preventing the blocking mechanism from sliding, and a disintegration mechanism disposed at both ends of the support tube 1 for the synchronous disintegration of the support tube 1 and the limiting mechanism.

[0054] 0043. The disintegration mechanism includes several disintegration grooves 4 evenly distributed on the support tube 1, wherein the disintegration groove 4 at one end of the support tube 1 passes through the limiting mechanism and divides the limiting mechanism into several parts.

[0055] 0044. An arc-shaped boss 5 is provided on the outer wall of the support tube 1 between two adjacent disintegration grooves 4.

[0056] 0045. Based on Example 4, this embodiment 5 provides a more preferred structure for the support tube 1, specifically: the outer wall of the support tube 1 is provided with an arc-shaped protrusion 5 located between two adjacent disintegration grooves 4.

[0057] 0046. The arc-shaped protrusion 5 of the present invention is provided on the outer wall of the support tube 1, and the arc-shaped protrusion 5 is located between two adjacent disintegration grooves 4. The arc-shaped protrusion 5 prevents the intestinal tube from slipping on the outer wall of the support tube 1 during the suturing and fixing process, thereby facilitating the fixing of the intestinal tube. At the same time, the arc-shaped protrusion 5 is located between two adjacent disintegration grooves 4, so that the arc-shaped protrusion 5 can disintegrate synchronously with the support tube 1 during the disintegration process.

[0058] 0047. As shown in Figures 1-5, the present invention provides an intestinal anastomosis protection device, comprising a support tube 1 fixed in the intestinal tract at the anastomosis front end, a blocking mechanism disposed in the support tube 1 for blocking the flow of intestinal contents and preventing intestinal contents from flowing through the inner wall of the support tube 1, a limiting mechanism disposed on the inner wall of the support tube 1 for preventing the blocking mechanism from sliding, and a disintegration mechanism disposed at both ends of the support tube 1 for the synchronous disintegration of the support tube 1 and the limiting mechanism.

[0059] 0048. Each end of the support tube 1 has a wire hole 7.

[0060] 0049. Based on Example 1, this embodiment 6 provides a more preferred structure for the support tube 1, specifically: a wire hole 7 is provided at each end of the support tube 1.

[0061] 0050. The present invention provides a thread hole 7 at each end of the support tube 1. In use, the support tube 1 covers the intestinal tube near the anastomosis with the outer wall of the support tube 1, and the intestinal tube covered with the support tube 1 is sutured and fixed by passing suture thread through the thread hole 7 at both ends of the support tube 1, so that the support tube 1 is fixed in the intestinal lumen, thereby facilitating the suturing and fixing of the intestinal tube.

[0062] 0051. As shown in Figures 1-5, the present invention provides an intestinal anastomosis protection device, comprising a support tube 1 fixed in the intestinal tract at the anastomosis front end, a blocking mechanism disposed in the support tube 1 for blocking the flow of intestinal contents and preventing intestinal contents from flowing through the inner wall of the support tube 1, a limiting mechanism disposed on the inner wall of the support tube 1 for preventing the blocking mechanism from sliding, and a disintegration mechanism disposed at both ends of the support tube 1 for the synchronous disintegration of the support tube 1 and the limiting mechanism.

[0063] 0052. The blocking mechanism includes a drainage tube 8 disposed inside the support tube 1 and extending out of the body from the anus along the intestine to drain intestinal contents to the outside, an airbag 9 disposed on the outer wall of the drainage tube 8 and tightly fitted with the limiting mechanism after expansion, and a media delivery tube 10 disposed inside the drainage tube 8, with one end connected to the airbag 9 and the other end connected to the external media delivery mechanism.

[0064] 0053. Based on Example 1, this embodiment 7 provides a more preferred structure for the blocking mechanism, specifically: the blocking mechanism includes a guide tube 8 disposed inside the support tube 1 and extending out of the body from the anus along the intestine to drain the intestinal contents to the outside, an airbag 9 disposed on the outer wall of the guide tube 8 and tightly fitted with the limiting mechanism after expansion, and a medium delivery tube 10 disposed inside the guide tube 8 with one end connected to the airbag 9 and the other end connected to the external medium delivery mechanism.

[0065] 0054. In this invention, the drainage tube 8 is placed inside the support tube 1, and the drainage tube 8 extends out of the body from the anus along the intestine. The drainage tube 8 can drain the intestinal contents to the outside, thereby avoiding the intestinal contents from passing through the anastomosis. The air bladder 9 is placed on the drainage tube 8. After inflation, the outer wall of the air bladder 9 abuts and seals tightly against the inner wall of the support tube 1, and one end of the air bladder 9 contacts the end of the limiting ring plate 3 to prevent the air bladder 9 from slipping out of the drainage tube 8 during use, thereby preventing the unhealed anastomosis from directly contacting the intestinal contents and reducing the risk of anastomosis infection. The medium delivery tube 10 is placed inside the drainage tube 8, and the medium... One end of the delivery tube 10 is connected to the air bladder, and the other end is connected to the external medium delivery mechanism. During use, the external medium delivery mechanism delivers the medium to the air bladder 9 through the medium delivery tube 10, causing the air bladder 9 to inflate. After inflation, the outer wall of the air bladder 9 abuts against the inner wall of the support tube 1 to seal it, preventing intestinal contents from passing through the anastomosis, thus facilitating anastomosis healing. After the anastomosis heals, the external medium delivery mechanism sucks out the medium from the air bladder 9, causing the air bladder 9 to shrink, and the air bladder and drainage tube in the intestine are pulled out from the anus to the outside of the body, thus facilitating the removal of the blocking mechanism from the intestine.

[0066] 0055. The medium conveying pipe 10 of the present invention is provided with a medium inlet / outlet valve 13, which conveys the medium to the air bag 9 and also allows the medium to remain in the air bag 9, so that the air bag 9 is kept in an inflated state.

[0067] 0056. The guide tube 8 of the present invention is provided with a medium inlet and outlet that are connected to the medium conveying tube 10. The medium inlet and outlet facilitate the connection between the medium conveying tube 10 and the airbag 9.

[0068] 0057. As shown in Figures 1-5, the present invention provides an intestinal anastomosis protection device, comprising a support tube 1 fixed in the intestinal tract at the anastomosis front end, a blocking mechanism disposed in the support tube 1 for blocking the flow of intestinal contents and preventing intestinal contents from flowing through the inner wall of the support tube 1, a limiting mechanism disposed on the inner wall of the support tube 1 for preventing the blocking mechanism from sliding, and a disintegration mechanism disposed at both ends of the support tube 1 for the synchronous disintegration of the support tube 1 and the limiting mechanism.

[0069] 0058. The blocking mechanism includes a drainage tube 8 disposed inside the support tube 1 and extending out of the body from the anus along the intestine to drain intestinal contents to the outside, an airbag 9 disposed on the outer wall of the drainage tube 8 and tightly fitted with the limiting mechanism after expansion, and a media delivery tube 10 disposed inside the drainage tube 8 with one end connected to the airbag 9 and the other end connected to the external media delivery mechanism.

[0070] 0059. The guide tube 8 is provided with a hemispherical plug 11, and the plug 11 is provided with an intestinal contents inlet 12 connected to the guide tube 8 for the passage of intestinal contents; the intestinal contents inlet 12 is located upstream of the support tube 1.

[0071] 0060. Based on embodiment 7, this embodiment 8 provides a more preferred structure for the guide tube 8, specifically: the guide tube 8 is provided with a hemispherical plug 11, and the plug 11 is provided with an intestinal contents inlet 12 connected to the guide tube 8 for the passage of intestinal contents; the intestinal contents inlet 12 is located upstream of the support tube 1.

[0072] 0061. The drainage tube 8 of the present invention is provided with a hemispherical plug 11. The hemispherical plug 11 can prevent damage to the intestinal wall when the drainage tube 8 is inserted or removed. The intestinal contents inlet 12 is provided on the plug 11 and is connected to the drainage tube 8. The intestinal contents inlet 12 is located upstream of the support tube 1. In use, the intestinal contents inlet 12 can facilitate the drainage of intestinal contents, so that the intestinal contents can enter the drainage tube 8 through the intestinal contents inlet 12 and be drained out of the body through the drainage tube 8.

[0073] 0062. The plug 11 and the guide tube 8 of the present invention are an integral structure.

[0074] 0063. As shown in Figures 1-5, the present invention provides an intestinal anastomosis protection device, comprising a support tube 1 fixed in the intestinal tract at the anastomosis front end, a blocking mechanism disposed in the support tube 1 for blocking the flow of intestinal contents and preventing intestinal contents from flowing through the inner wall of the support tube 1, a limiting mechanism disposed on the inner wall of the support tube 1 for preventing the blocking mechanism from sliding, and a disintegration mechanism disposed at both ends of the support tube 1 for the synchronous disintegration of the support tube 1 and the limiting mechanism.

[0075] 0064. The support tube 1 and the limiting mechanism are made of polycaprolactone.

[0076] 0065. Based on Example 1, this Example 9 provides a more preferred structure for the support tube 1 and the limiting mechanism, specifically: the support tube 1 and the limiting mechanism are made of polycaprolactone.

[0077] 0066. The support tube 1 and the limiting mechanism of this invention are made of polycaprolactone. Specifically, the support tube 1 and the limiting ring plate 3 are made of polycaprolactone, which is a biodegradable material that can be degraded and absorbed by the human body. This allows the support tube 1 and the limiting ring plate 3 to remain in the intestine and degrade on their own after the anastomosis is restored.

[0078] 0067. The medium conveyed by the medium conveying mechanism of the present invention is a fluid, preferably water.

[0079] 0068. The polycaprolactone used in this invention is an existing material that can be purchased and used directly on the market.

[0080] 0069. A method of using an intestinal anastomosis protection device includes the following steps:

[0081] S1. Place the support tube into the intestine at the anterior end of the anastomosis.

[0082] S2. Use sutures to pass through the suture holes at both ends of the support tube and suture the support tube to fix it in the intestine;

[0083] S3. Connect one end of the medium delivery pipe inside the guide tube to the airbag and the other end to the external medium delivery mechanism.

[0084] S4. Insert the airbag into the support tube;

[0085] S5. Open the medium inlet and outlet valves on the medium delivery pipe. The external medium delivery mechanism delivers the medium to the air bladder through the medium delivery pipe, causing the air bladder to inflate. After inflating, the outer wall of the air bladder fits tightly against the wall of the support pipe, and one end of the air bladder contacts the limiting ring plate.

[0086] S6. After the airbag inflates, close the external conveying mechanism and the medium inlet / outlet valve, and disconnect the external conveying mechanism from the conveying mechanism.

[0087] S7. After the anastomosis is restored, open the medium inlet / outlet valve to release the medium in the balloon, causing the balloon to shrink. Pull the balloon and drainage tube in the intestine out of the anus and out of the body, while the support tube remains in the intestine to degrade on its own.

[0088] S8. When the support tube disintegrates, the support tube, the limiting ring plate and the arc-shaped boss disintegrate simultaneously because the support tube is provided with a disintegration groove.

[0089] 0070. The medium conveying mechanism, suture, and medium inlet / outlet valve 13 used in this invention are existing technologies and can be purchased and used directly on the market. Therefore, the structure, circuit, and principle of the medium conveying mechanism, suture, and medium inlet / outlet valve 13 will not be described in detail here.

[0090] 0071. Finally, it should be noted that the above embodiments are merely preferred embodiments of the present invention used to illustrate the technical solutions of the present invention, and are not intended to limit them, let alone limit the patent scope of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention. That is to say, any changes or refinements made to the main design idea and spirit of the present invention that have no substantial meaning, but whose technical problems are still consistent with the present invention, should be included within the protection scope of the present invention. In addition, the direct or indirect application of the technical solutions of the present invention to other related technical fields are similarly included within the patent protection scope of the present invention.

Claims

1. An intestinal obstruction external drainage device, characterized in that, It includes a support tube (1) fixed in the intestinal tract at the anastomosis end, a blocking mechanism disposed in the support tube (1) to block the flow of intestinal contents and prevent intestinal contents from flowing through the inner wall of the support tube (1), a limiting mechanism disposed on the inner wall of the support tube (1) to prevent the blocking mechanism from sliding, and a disintegration mechanism disposed at both ends of the support tube (1) for the support tube (1) and the limiting mechanism to disintegrate synchronously. The limiting mechanism includes a limiting ring plate (3) disposed on the inner wall of the support tube (1); The disintegration mechanism includes several disintegration grooves (4) evenly distributed on the support tube (1), wherein the disintegration groove (4) at one end of the support tube (1) passes through the limiting mechanism and divides the limiting mechanism into several parts.

2. The intestinal obstruction external drainage device according to claim 1, characterized in that, The outer wall of the limiting ring plate (3) and the inner wall of the support tube (1) form an acute angle.

3. The intestinal obstruction external drainage device according to claim 1, characterized in that, The outer wall of the support tube (1) is provided with an arc-shaped boss (5) located between two adjacent disintegration grooves (4).

4. The intestinal obstruction external drainage device according to claim 1, characterized in that, Each end of the support tube (1) has a thread hole (7).

5. The intestinal obstruction external drainage device according to claim 1, characterized in that, The blocking mechanism includes a drainage tube (8) located inside the support tube (1) and extending out of the anus along the intestine to drain intestinal contents to the outside, an air bladder (9) located on the outer wall of the drainage tube (8) and tightly fitted with the limiting mechanism after expansion, and a media delivery tube (10) located inside the drainage tube (8) with one end connected to the air bladder (9) and the other end connected to the external media delivery mechanism.

6. An intestinal obstruction external drainage device according to claim 5, characterized in that, The guide tube (8) is provided with a hemispherical plug (11), and the plug (11) is provided with an intestinal contents inlet (12) connected to the guide tube (8) for the passage of intestinal contents; the intestinal contents inlet (12) is located upstream of the support tube (1).

7. An intestinal obstruction external drainage device according to claim 1, characterized in that, The support tube (1) and the limiting mechanism are made of polycaprolactone.

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