An intestinal stoma negative pressure suction device

Abstract

The present application provides a kind of intestinal stoma negative pressure suction device, it is related to medical instrument technical field, including: cut-off part;Cut-off part is equipped with suction part;Cut-off part is equipped with docking part;Docking part is equipped with replacement part.The present application is driven by cut-off extrusion block accurate down pressure extrusion cut-off capsule by utilizing screw thread transmission, can be in the premise that no need to remove negative pressure pipeline, no need to close stop external negative pressure equipment, quickly realize pipeline conduction and extrusion cut-off switching control, while cut-off capsule adopts flexible silica gel material and compacts plugging with extrusion block, cut-off is sealed, and the effect of negative pressure pressure maintenance is excellent, can effectively prevent negative pressure gas leakage, pipeline deflation pressure relief, avoid the situation that not completely dirty drainage caused by insufficient negative pressure suction, stoma dirt accumulation immersion skin, solve the problem that paste type ostomy bag can only realize passive accumulation of excrement, no active negative pressure suction drainage function, intestinal liquid is easy to accumulate and remain in stoma mouth portion.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a negative pressure suction device for an intestinal stoma. Background Technology

[0002] Intestinal stoma surgery is a core palliative and radical surgical intervention in general surgery and colorectal surgery for critical intestinal diseases such as colorectal cancer, severe intestinal obstruction, intestinal perforation, intestinal trauma, and severe inflammatory bowel disease. It mainly involves surgically severing the diseased intestinal segment, harvesting a healthy intestinal segment, and bringing it out of the body through an abdominal stoma to replace the original anus and allow normal intestinal waste to be discharged. This avoids continuous stimulation of the diseased intestinal segment by waste, reduces the risk of abdominal infection and intestinal rupture, saves the patient's life, and maintains basic intestinal metabolic physiological function.

[0003] In recent years, with the expansion of the aging population and the increasing incidence of intestinal malignancies and acute abdominal pain, the number of patients undergoing permanent and temporary intestinal stoma surgery has continued to increase. These patients include various groups such as middle-aged and elderly critically ill patients, patients undergoing short-term stoma transitional rehabilitation after surgery, and special infants with congenital intestinal malformations and stomas. Professional and meticulous post-stoma care has become a core and key link in clinical post-operative rehabilitation management, reducing the incidence of complications, and improving the post-operative quality of life of patients. It is directly related to the progress of stoma wound healing, the patient's recovery period, and the success rate of subsequent stoma reduction surgery.

[0004] Under normal physiological conditions, the intestinal stoma continuously discharges a mixture of waste, including loose stools, intestinal fluid, intestinal secretions, and residual digestive waste. This waste contains a large amount of digestive enzymes, bacteria, and corrosive metabolic substances. If it cannot be cleaned in a timely, efficient, and continuous manner, it can easily directly soak into the skin around the stoma and the postoperative abdominal wall surgical incision. Long-term immersion and stimulation can easily induce a variety of common postoperative complications, such as stoma skin-mucosal separation, peristomal dermatitis, skin redness and ulceration, wound infection, stoma necrosis, and stoma retraction. These complications not only aggravate the patient's physical pain and increase the suffering of postoperative recovery, but also prolong the hospitalization period, increase the medical costs of clinical anti-infection treatment and subsequent secondary repair surgery, and in severe cases, can lead to systemic infection, stoma function failure, and other critical conditions, directly threatening the patient's postoperative life, health, and recovery prognosis. Therefore, a negative pressure suction device is needed to facilitate the external discharge of the patient's mixed waste.

[0005] Currently, traditional negative pressure suction devices are usually used in conjunction with adhesive ostomy bags. However, adhesive ostomy bags can only passively collect and store excrement, without active negative pressure suction and drainage. Loose stools and thin intestinal fluids are prone to accumulate and remain at the stoma opening, and cannot be quickly removed from the stoma contact surface. This leads to continuous maceration and corrosion of the stoma mucosa and surrounding skin. Even with regular ostomy bag replacements, it is still impossible to avoid the problems of leakage and skin maceration and inflammation in a short period of time. Summary of the Invention

[0006] This invention relates to a negative pressure suction device for intestinal stomas, which has a cutting-off section and an air suction section. By using a screw thread drive to drive the cutting-off compression block to precisely press down and squeeze the cutting-off balloon, the device can quickly switch between pipeline opening and compression cutting-off control at any time without removing the negative pressure pipeline or shutting down the external negative pressure equipment. At the same time, the cutting-off balloon is made of flexible silicone material and is compacted and sealed by the compression block, resulting in a tight cut-off seal and excellent negative pressure maintenance. This effectively prevents the leakage of negative pressure gas and the leakage and pressure drop of the pipeline, avoiding insufficient negative pressure suction that leads to incomplete drainage of waste and accumulation of stoma waste in the skin, thus ensuring the continuous and stable operation of negative pressure suction.

[0007] This invention provides a negative pressure suction device for an intestinal stoma, specifically comprising: a cut-off section; the cut-off section includes a fixed side plate; a pressure groove is formed on the fixed side plate; two opposing stabilizing grooves are formed on the inner wall of the pressure groove; a top mounting frame is fixedly connected inside the pressure groove; an adjusting screw is rotatably connected inside the top mounting frame; a pushing sleeve is threadedly connected to the outer wall of the adjusting screw; and a cut-off compression block is rotatably connected to the bottom of the pushing sleeve. An air extraction section is provided on the outside of the cut-off section; the air extraction section includes a collection cylinder; a connecting head is fixedly connected to the outer wall of the rear end of the collection cylinder; a connecting pipe is fixedly connected to the rear side of the connecting head; a cut-off bladder is fixedly connected to the rear end of the connecting pipe; and an air extraction pipe is fixedly connected to the rear side of the connecting head. The cut-off portion is provided with a docking portion on its exterior; the docking portion includes a docking piece; the docking piece has an inner slot; the docking piece has two shrinkage grooves inside; the two shrinkage grooves are respectively slidably connected to two inner sliding push pieces; the sides of the two inner sliding push pieces that are close to each other are fixedly connected with locking rods; the sides of the two inner sliding push pieces that are far apart from each other are fixedly connected with constraint springs; the cylindrical rods on the sides of the two inner sliding push pieces that are far apart from each other are provided with outer pull rings. The cut-off portion is provided with a replacement portion on its exterior; the replacement portion includes a replacement insert plate; a docking inner cylinder is fixedly inserted inside the replacement insert plate; a locking insertion hole is provided on the outer side wall of the replacement insert plate; a docking sleeve is provided on the rear side of the replacement insert plate; an attachment piece is fixedly connected to the outer side of the docking sleeve.

[0008] Preferably, the top mounting bracket has a shaft hole at the middle position; the top of the adjusting screw rotates through the shaft hole and is fixedly connected to a handle.

[0009] Preferably, the inner wall of the push sleeve is provided with a threaded groove for cooperating with the outer wall of the adjusting screw; two rectangular blocks are fixedly connected to the outer walls of the two sides of the cut-off extrusion block for sliding connection in the corresponding stabilizing groove.

[0010] Preferably, the inside of the collecting cylinder is configured as a cavity structure; the connecting top has two insertion holes that communicate with the collecting cylinder.

[0011] Preferably, the front end of the connecting tube is fixedly inserted into a socket of the connecting head; the truncated sac is inserted into the pressure groove; and the top side of the outer wall of the truncated sac remains in contact with the bottom of the truncated extrusion block.

[0012] Preferably, one end of the suction pipe is fixedly inserted into another insertion hole of the connecting top; an external tap is fixedly connected to the other end of the suction pipe.

[0013] Preferably, the mating piece is fixed to the rear side of the fixed side plate; the inner slot is aligned with the pressure groove.

[0014] Preferably, each of the two shrinkage grooves is connected to one of the two inner slots; and cylindrical rods are fixed to the sides of the two inner push plates that are far apart from each other.

[0015] Preferably, the replacement insert is inserted into the inner slot; a circular locking hole is provided in the middle of the replacement insert, and the docking inner cylinder is fixed in the circular locking hole; the transection balloon can be inserted into the interior of the docking inner cylinder; the rear end of the docking inner cylinder can be connected to the stoma in the patient's body.

[0016] Preferably, the locking socket is a circular socket, and the end of the locking rod can be inserted into the corresponding circular socket; the docking sleeve can be threaded onto the docking piece; the adhesive patch is used to contact the patient's skin.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. In this invention, by using a screw thread drive to drive the cutting and squeezing block to precisely press down and squeeze the cutting balloon, the pipeline can be quickly switched between opening and cutting at any time without removing the negative pressure pipeline or shutting down the external negative pressure equipment. At the same time, the cutting balloon is made of flexible silicone material and is compacted and sealed by the squeezing block, resulting in a tight cut-off seal and excellent negative pressure retention. This effectively prevents the leakage of negative pressure gas and the pipeline from leaking and depressurizing, avoiding insufficient negative pressure suction that leads to incomplete drainage of waste and accumulation of stoma waste that soaks the skin, thus ensuring the continuous and stable operation of negative pressure suction.

[0018] 2. In this invention, the inner slot, shrinkage groove, inner push plate, constraint spring, locking rod, and outer pull ring on the docking plate work together to achieve quick insertion and removal assembly and automatic locking positioning of the replacement insert plate and docking inner cylinder. Disassembly and assembly do not require any auxiliary tools, and medical staff can quickly complete the replacement and disassembly operations by themselves, which greatly simplifies the clinical nursing operation process and reduces the nursing workload of medical staff. At the same time, the locking rod has strong elastic insertion and locking stability, and it is not easy to loosen, misalign, or fall off during use. The device has high assembly stability and does not loosen under long-term negative pressure operation, which greatly improves the safety of use.

[0019] 3. In this invention, by adopting an integrated structure of a collection cylinder with a connecting top, connecting pipe, suction pipe, and external tap, it can centrally and temporarily collect mixed waste such as intestinal fluid, loose stool, and secretions aspirated from the stoma. The transparent cylinder allows medical staff to visually observe the amount of waste stored and clean and drain it as needed in a timely manner, avoiding waste overflow that could affect negative pressure drainage operations. Furthermore, it can be quickly adapted to routine external negative pressure equipment in clinical settings through the external tap, making it highly versatile for negative pressure connection and adaptable to the negative pressure air source needs of different hospitals and nursing scenarios. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0021] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0022] In the attached diagram: Figure 1 A schematic diagram of a three-dimensional assembly structure according to an embodiment of the present invention is shown; Figure 2 A schematic diagram of the three-dimensional assembly bottom view structure according to an embodiment of the present invention is shown; Figure 3 A schematic diagram of the exploded structure according to an embodiment of the present invention is shown; Figure 4 A schematic diagram of the exploded bottom view structure according to an embodiment of the present invention is shown; Figure 5 A schematic diagram of a partially cut-out structure according to an embodiment of the present invention is shown; Figure 6 The invention is illustrated by an embodiment of the invention. Figure 5 A schematic diagram of the enlarged structure of section A; Figure 7 The invention is illustrated by an embodiment of the invention. Figure 5 A schematic diagram of the enlarged structure of section B is shown. Figure 8A schematic diagram of the truncated portion assembly structure according to an embodiment of the present invention is shown; Figure 9 A schematic diagram of the air extraction unit assembly structure according to an embodiment of the present invention is shown; Figure 10 A schematic diagram of the docking assembly structure according to an embodiment of the present invention is shown; Figure 11 A schematic diagram of the replacement assembly structure according to an embodiment of the present invention is shown.

[0023] List of reference numerals 1. Cut-off section; 101. Fixed side plate; 102. Pressure groove; 103. Stabilizing slide; 104. Top mounting bracket; 105. Adjusting screw; 106. Pushing sleeve; 107. Cut-off extrusion block; 2. Air extraction section; 201. Collection cylinder; 202. Connecting head; 203. Connecting pipe; 204. Cut-off bulb; 205. Air extraction pipe; 206. External tap; 3. Connecting part; 301. Connecting piece; 302. Inner slot; 303. Shrinkage groove; 304. Inner push piece; 305. Locking rod; 306. Restraint spring; 307. Outer pull ring; 4. Replacement part; 401. Replacement insert plate; 402. Connecting inner cylinder; 403. Locking hole; 404. Connecting sleeve; 405. Attaching patch. Detailed Implementation

[0024] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples.

[0025] Example 1: Please refer to Figures 1 to 11This invention proposes an intestinal stoma negative pressure suction device, comprising: a cutting section 1; the cutting section 1 includes a fixed side plate 101; the fixed side plate 101 is used to assist in the installation and fixation of other structures of the cutting section 1, so as to block the communication between the cutting balloon 204 and the docking inner cylinder 402 by compression cutting, so as to facilitate the device to perform negative pressure treatment; a pressure groove 102 is provided on the fixed side plate 101; the pressure groove 102 is used to assist in the internal clamping of the cutting balloon 204, so as to facilitate its stability; two opposing stabilizing grooves 103 are provided on the inner wall of the pressure groove 102; the stabilizing grooves 103 are used to assist in constraining the cutting compression block 107, so as to maintain its stability during the adjustment process; a top mounting frame 104 is fixedly connected inside the pressure groove 102; the top mounting frame 104 is used to assist in the installation of the adjusting screw 105, facilitating its stability; the adjusting screw 105 is rotatably connected inside the top mounting bracket 104; the adjusting screw 105 is used to control the push sleeve 106 and the cutting and squeezing block 107 to squeeze the cut-off bladder 204 during rotation; the push sleeve 106 is threadedly connected to the outer wall of the adjusting screw 105; the push sleeve 106 is used to adjust its position under the drive of the adjusting screw 105, so as to drive the cutting and squeezing block 107 to squeeze the cut-off bladder 204; the bottom of the push sleeve 106 is rotatably connected to the cutting and squeezing block 107; the cutting and squeezing block 107 is used to squeeze the cut-off bladder 204, thereby preventing gas leakage during the vacuuming negative pressure process.

[0026] The cut-off section 1 is provided with an air extraction section 2; the air extraction section 2 includes a collection cylinder 201, which is located in front of the fixed side plate 101; the collection cylinder 201 is used to temporarily store the mixed waste sucked out by negative pressure, so as to facilitate its unified collection; a connecting head 202 is fixedly connected to the outer wall of the rear end of the collection cylinder 201; the connecting head 202 is used to assist in connecting the collection cylinder 201 with the connecting pipe 203 and the air extraction pipe 205; the connecting pipe 203 is fixedly connected to the rear side of the connecting head 202; the connecting pipe 203 is used to connect... The cut-off balloon 204 conveys the sucked-out mixed impurities; the cut-off balloon 204 is fixedly connected to the rear end of the connecting pipe 203, and the cut-off balloon is made of flexible silicone material; the cut-off balloon 204 is used to assist in conveying the sucked-out mixed impurities while working with the cut-off extrusion block 107 to prevent air leakage, so as to help maintain a negative pressure state; the exhaust pipe 205 is fixedly connected to the rear side of the connecting head 202; the exhaust pipe 205 is used to connect with the external tap 206 to the external negative pressure device to help keep the device in a negative pressure state.

[0027] The cut-off portion 1 is provided with a docking portion 3; the docking portion 3 includes a docking piece 301, which is disposed on the rear side of the fixed side plate 101; the docking piece 301 is used to assist in the installation and fixation of other structures of the docking portion 3, so as to facilitate its overall stability and ease of use; the docking piece 301 is provided with an inner slot 302; the inner slot 302 is used to assist in the internal insertion of the replacement insert plate 401, so as to facilitate the docking of the inner cylinder 402 and the cut-off bladder 204; two shrinkage grooves 303 are provided inside the docking piece 301; the shrinkage grooves 303 are used to assist in the installation of the inner moving push piece 304, so as to facilitate its telescopic adjustment; two inner moving push pieces 304 are slidably connected inside the two shrinkage grooves 303 respectively; the inner moving push pieces 304 are used to control the locking rod 305 to be inserted into the inner under the action of the constraint spring 306. The replacement plate 401 is kept stable within the locking socket 403. Locking rods 305 are fixed to the sides of the two inner sliding push plates 304 that are close to each other. The locking rods 305 constrain the replacement plate 401 by inserting them into the locking socket 403 to maintain its stability. Constraint springs 306 are fixed to the sides of the two inner sliding push plates 304 that are far apart from each other. The constraint springs 306 push the inner sliding push plates 304 to adjust their position under the action of the springs for ease of use. External pull rings 307 are provided on the cylindrical rods on the sides of the two inner sliding push plates 304 that are far apart from each other. The other end of the external pull rings 307 slides through and extends to the outside of the mating plate 301. The external pull rings 307 assist in adjusting the inner sliding push plates 304 from the outside for ease of use.

[0028] The docking part 3 is provided with a replacement part 4; the replacement part 4 includes a replacement insert plate 401; the replacement insert plate 401 is used to assist in the installation of the docking inner cylinder 402, so as to facilitate the connection between the docking inner cylinder 402 and the cut-off balloon 204 and the patient's stoma position; the docking inner cylinder 402 is fixedly inserted inside the replacement insert plate 401; the docking inner cylinder 402 is used to assist in the connection with the cut-off balloon 204 and the patient's stoma position, so as to facilitate the transportation and treatment of the suctioned mixed waste; a locking hole 403 is opened on the outer side wall of the replacement insert plate 401; the locking hole 403 is used to assist in the insertion of the locking rod 305, so as to facilitate the restraint of the replacement insert plate 401; a docking sleeve 404 is provided on the rear side of the replacement insert plate 401; the docking sleeve 404 is used to adhere to the patient's body to protect the area around the patient's stoma; an adhesive patch 405 is fixedly attached to the outer side of the docking sleeve 404; the adhesive patch 405 is used to assist in fixing the docking sleeve 404.

[0029] Example 2: Based on Example 1, as follows Figures 1 to 11 As shown, a shaft hole is provided in the middle position of the top mounting bracket 104; the top of the adjusting screw 105 rotates through the shaft hole and is fixedly connected to a handle.

[0030] The inner wall of the push sleeve 106 is provided with a threaded groove for cooperating with the outer wall of the adjusting screw 105; two rectangular blocks are fixed to the outer walls of the two sides of the cut-off extrusion block 107 for sliding connection in the corresponding stable slide groove 103.

[0031] The inside of the collecting cylinder 201 is set as a cavity structure; the connecting head 202 has two insertion holes that communicate with the collecting cylinder 201; the front end of the connecting pipe 203 is fixedly inserted into one of the insertion holes of the connecting head 202; the cut-off bladder 204 is stuck in the pressure groove 102; the top side of the outer wall of the cut-off bladder 204 is in contact with the bottom of the cut-off extrusion block 107; one end of the suction pipe 205 is fixedly inserted into the other insertion hole of the connecting head 202; an external tap 206 is fixedly connected to the other end of the suction pipe 205; the external tap 206 is used to connect to an external negative pressure device to help keep the device in a negative pressure state.

[0032] The mating piece 301 is fixedly connected to the rear side of the fixed side plate 101; the inner slot 302 is aligned with the pressure groove 102. Both shrinkage grooves 303 are connected to the two inner slots 302; cylindrical rods are fixedly connected to the mutually distant sides of the two inner push pieces 304.

[0033] The replacement insert 401 is inserted into the inner slot 302; a circular locking hole is provided in the middle of the replacement insert 401, and the docking inner cylinder 402 is fixed in the circular locking hole; the truncated balloon 204 can be inserted into the interior of the docking inner cylinder 402; the rear end of the docking inner cylinder 402 can be connected to the stoma in the patient's body. The locking insertion hole 403 is a circular insertion hole, and the end of the locking insertion rod 305 can be inserted into the corresponding circular insertion hole; the docking sleeve 404 can be threaded onto the docking piece 301; the attachment piece 405 is used to contact the patient's skin.

[0034] The specific usage and function of this embodiment are as follows: In this invention, the entire docking part 3 is first fixed to the outside of the fixed side plate 101 of the cut-off part 1 by the docking piece 301, ensuring that the inner slot 302 opened on the docking piece 301 is precisely aligned and coaxial with the pressure groove 102 on the fixed side plate 101; then, the medical staff pulls the outer pull rings 307 on both sides respectively, and the outer pull rings 307 drive the cylindrical rod to pull the inner push piece 304 to slide outward and retract along the shrinkage groove 303, compressing the constraint spring 306, so that the locking rod 305 retracts synchronously into the shrinkage groove 303, releasing the insertion limit of the inner slot 302; then, the replacement plate 401 on the replacement part 4 of the pre-selected specification is aligned with the inner slot 302 and inserted horizontally inward until the replacement plate 401 is completely engaged in place. After the replacement part 4 is assembled, ensure that the inner cylinder 402 fixed in the middle circular hole of the replacement insert plate 401 is precisely connected to the cut-off ball 204 installed inside the pressure groove 102, forming a complete waste conveying channel; after the device is assembled, rotate the handle at the top of the adjusting screw 105 to drive the adjusting screw 105 to rotate, which drives the sleeve 106 and the cut-off extrusion block 107 to rise and reset through the threaded transmission, so that the cut-off extrusion block 107 is away from the cut-off ball 204, and the cut-off ball 204 is in a naturally extended and conductive state, keeping the cut-off ball 204 in a state of open conduction. 04. The internal pipeline is unobstructed, ensuring complete communication between the inner tube 402, the cut-off balloon 204, the connecting tube 203, and the internal cavity of the collection tube 201. Then, the external negative pressure device is activated, and air is continuously drawn through the suction tube 205 to create a stable negative pressure environment inside the entire device. Under the action of negative pressure suction, the mixed waste such as intestinal fluid, loose stool, and secretions discharged from the patient's enterostomy is smoothly transported through the inner tube 402, the cut-off balloon 204, and the connecting tube 203 to the inside of the collection tube 201 for temporary storage. Medical staff can visually observe the total amount of waste collected through the transparent collection tube 201. When it is necessary to suspend the drainage of sludge, maintain the negative pressure stability inside the device, replace the collection cylinder 201, or temporarily shut down the negative pressure passage, there is no need to disconnect the negative pressure equipment. Simply rotate the handle at the top of the adjusting screw 105 manually, which will drive the adjusting screw 105 to rotate synchronously. Under the action of the threaded engagement, the pushing sleeve 106 moves downward, which drives the cutting and squeezing block 107 to slide vertically downward smoothly along the stabilizing slide groove 103, squeezing and pressurizing the cutting balloon 204 installed inside the pressure groove 102. After being squeezed, the cutting balloon 204 deforms and contracts, and the internal pipeline channel is completely compacted and blocked, completely blocking the communication passage between the cutting balloon 204 and the docking inner cylinder 402, effectively preventing the leakage of negative pressure gas, ensuring the continuous maintenance of negative pressure at the back end of the device, and eliminating the need to repeatedly start and stop the negative pressure equipment.

Claims

1. An enterostomy negative pressure suction device, comprising: The cut-off section (1) is characterized in that it includes a fixed side plate (101); a pressure groove (102) is provided on the fixed side plate (101); two opposing stabilizing grooves (103) are provided on the inner wall of the pressure groove (102); a top mounting bracket (104) is fixedly connected inside the pressure groove (102); an adjusting screw (105) is rotatably connected inside the top mounting bracket (104); a push sleeve (106) is threadedly connected to the outer wall of the adjusting screw (105); and a cut-off extrusion block (107) is rotatably connected to the bottom of the push sleeve (106). The cut-off portion (1) is provided with an air extraction portion (2); the air extraction portion (2) includes a collection cylinder (201); a connecting head (202) is fixedly connected to the outer wall of the rear end of the collection cylinder (201); a connecting pipe (203) is fixedly connected to the rear side of the connecting head (202); a cut-off balloon (204) is fixedly connected to the rear end of the connecting pipe (203); and an air extraction pipe (205) is fixedly connected to the rear side of the connecting head (202). The cut-off portion (1) is provided with a docking portion (3); the docking portion (3) includes a docking piece (301); the docking piece (301) is provided with an inner slot (302); the docking piece (301) has two shrinkage grooves (303) inside; the two shrinkage grooves (303) are respectively slidably connected to two inner sliding push pieces (304); the sides of the two inner sliding push pieces (304) that are close to each other are fixedly connected with locking rods (305); the sides of the two inner sliding push pieces (304) that are far apart from each other are fixedly connected with constraint springs (306); the cylindrical rods on the sides of the two inner sliding push pieces (304) that are far apart from each other are provided with outer pull rings (307). The docking part (3) is provided with a replacement part (4) on its exterior; the replacement part (4) includes a replacement insert plate (401); a docking inner cylinder (402) is fixedly inserted inside the replacement insert plate (401); a locking hole (403) is opened on the outer side wall of the replacement insert plate (401); a docking sleeve (404) is provided on the rear side of the replacement insert plate (401); an attachment piece (405) is fixedly connected to the outer side of the docking sleeve (404).

2. The enterostomy negative pressure suction device according to claim 1, characterized in that: The top mounting bracket (104) has a shaft hole in the middle position; the top of the adjusting screw (105) rotates through the shaft hole and is fixedly connected to a handle.

3. The enterostomy negative pressure suction device according to claim 1, characterized in that: The inner wall of the push sleeve (106) is provided with a threaded groove for cooperating with the outer wall of the adjusting screw (105); two rectangular blocks are fixed on the outer walls of the two sides of the cut-off extrusion block (107) for sliding connection in the corresponding stabilizing groove (103).

4. The enterostomy negative pressure suction device according to claim 1, characterized in that: The inside of the collecting cylinder (201) is set as a cavity structure; the connecting head (202) has two insertion holes that communicate with the collecting cylinder (201).

5. The enterostomy negative pressure suction device according to claim 1, characterized in that: The front end of the connecting tube (203) is fixedly inserted into a socket of the connecting head (202); the cut-off bladder (204) is inserted into the pressure groove (102); the top side of the outer wall of the cut-off bladder (204) is in contact with the bottom of the cut-off extrusion block (107).

6. The enterostomy negative pressure suction device according to claim 1, characterized in that: One end of the suction pipe (205) is fixedly inserted into another socket of the connecting head (202); an external tap (206) is fixedly connected to the other end of the suction pipe (205).

7. The enterostomy negative pressure suction device according to claim 1, characterized in that: The docking piece (301) is fixed to the rear side of the fixed side plate (101); the inner slot (302) is aligned with the pressure groove (102).

8. The enterostomy negative pressure suction device according to claim 1, characterized in that: Both of the shrinkage grooves (303) are connected to the two inner slots (302); cylindrical rods are fixed to the sides of the two inner push plates (304) that are far apart from each other.

9. The enterostomy negative pressure suction device according to claim 1, characterized in that: The replacement insert (401) is inserted into the inner slot (302); a circular locking hole is provided in the middle of the replacement insert (401), and the docking inner cylinder (402) is fixed in the circular locking hole; the transection balloon (204) can be inserted into the interior of the docking inner cylinder (402); the rear end of the docking inner cylinder (402) can be connected to the stoma in the patient's body.

10. The enterostomy negative pressure suction device according to claim 1, characterized in that: The locking socket (403) is a circular socket, and the end of the locking rod (305) can be inserted into the corresponding circular socket; the docking sleeve (404) can be threaded onto the docking piece (301); the adhesive piece (405) is used to contact the patient's skin.

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