Intestinal tract drainage tube and drainage device for colon drainage

Abstract

The invention relates to the technical field of intestinal tract drainage devices, and discloses an intestinal tract drainage tube for colon drainage and a drainage device.The intestinal tract drainage tube for colon drainage comprises an outer tube and an air bag arranged at one end of the outer tube; the inner tube is located in the outer tube and used for allowing a drained object to pass through, and a preset gap exists between the outer wall of the inner tube and the inner wall of the outer tube; the flushing unit is arranged on the outer pipe, and the sealing ring is used for connecting the outer pipe and the inner pipe; the plurality of water outlet pipes are uniformly arranged on the sealing ring and are communicated with the gap; the injection assembly is connected with the connecting pipe, the connecting pipe communicates with the gap, and the liquid is conveyed into the gap through cooperation of the injection assembly and the connecting pipe; liquid can be buffered through the arranged containing cavity, the situation that the flow speed of water flow is too large, and intestines and stomach of a human body are stimulated is avoided, lubricating oil is generally injected into the injection nozzle which directly injects into the water injection pipe, and the lubricating oil is smoothly injected when the anal tube retreats out without hurting the intestinal tract; the drainage cleaning work on the intestinal tract of the patient is completed.

Description

Technical Field

[0001] The invention relates to the technical field of intestinal drainage devices, in particular to an intestinal drainage tube and a drainage device for colon drainage. Background Art

[0002] An intestinal drainage tube is a medical device that is usually placed in the intestine or at the site of perforation to drain feces, pus, blood, etc. accumulated in the intestine to avoid infection caused by local pus accumulation and promote wound healing. During use, the drainage tube must be kept unobstructed, and the color and amount of the drainage fluid must be observed. Vigorous activities should be avoided to prevent the drainage tube from shifting or falling off.

[0003] For example, a patent application with publication number CN111658856A discloses an intestinal irrigation and drainage device, which includes an anal canal body; an air bag is arranged on the proximal periphery of the anal canal body; a fitting sheet and a first irrigation tube are arranged on one side of the air bag, and the air bag is arranged on the inner side of the fitting sheet; a second irrigation tube is also arranged in the middle of the anal canal body; the second irrigation tube is communicated with the internal channel of the anal canal body; an inflation tube is also arranged on one side of the second irrigation tube; the inflation tube is communicated with the air bag.

[0004] There are still some problems with the above application. In order to complete the cleaning work in different situations at the same time, the above application provides multiple flushing tubes on the anal canal body. By injecting clean water, lubricating oil or saline into the flushing tubes, the patient's intestines can be cleaned, lubricated or sterilized. However, due to the excessive amount of liquid that needs to be injected, multiple branches will be formed on the anal canal body. Too many branches are not only difficult to manufacture but also require too many fixed positions during subsequent placement, which increases the workload of caregivers.

[0005] Therefore, how to provide a new drainage device to complete the drainage and cleaning of the patient's intestines is a problem that needs to be solved at present. Summary of the invention

[0006] The present invention provides an intestinal drainage tube and a drainage device for colon drainage to solve the above problems existing in the prior art.

[0007] An intestinal drainage tube for colon drainage, comprising:

[0008] an outer tube, and an air bag disposed at one end of the outer tube;

[0009] An inner tube, located inside the outer tube, for the passage of the drained object, with a predetermined gap between the outer wall of the inner tube and the inner wall of the outer tube;

[0010] A flushing unit, disposed on the outer tube, for conveying different liquids into the gap and allowing the liquids to flow into a predetermined position;

[0011] The flushing unit comprises an injection assembly, a connecting pipe, a sealing ring and a water outlet pipe;

[0012] A sealing ring, used to connect the outer tube and the inner tube;

[0013] A plurality of water outlet pipes are evenly arranged on the sealing ring and communicated with the gap;

[0014] The injection assembly is connected to the connecting pipe, and the connecting pipe is communicated with the gap. The liquid is transported to the gap through the cooperation between the injection assembly and the connecting pipe.

[0015] Furthermore, the injection assembly includes a mounting seat, at least two injection nozzles arranged on the mounting seat, a placement cavity and two water injection channels provided on the mounting seat, and a water injection pipe arranged in the placement cavity;

[0016] The water inlet end of the water injection pipe is at a predetermined distance from the bottom of the placement cavity, and the water outlet end of the water injection pipe is connected to the connecting pipe;

[0017] One end of the two water injection channels is communicated with the placement cavity respectively, and the other end of the two water injection channels is communicated with the two injection nozzles respectively;

[0018] The connection points between the two water injection channels and the inner wall of the placement cavity are located at different heights, and a delivery pipe is arranged between the water injection channel far away from the bottom of the placement cavity and the water injection pipe.

[0019] A drainage device, comprising an intestinal drainage tube for colon drainage, and also comprising a clamping assembly, a drainage bag, a transfer tube and an exhaust unit;

[0020] A clamping assembly, comprising a first connecting member and a second connecting member, wherein the first connecting member is arranged on the outer tube and is provided with a clamping groove, and the second connecting member is located on the transfer tube and is provided with a protrusion adapted to the clamping groove;

[0021] A drainage bag for receiving drainage;

[0022] A transfer tube, used to connect the clamping assembly and the drainage bag, so that the drainage material can be transported into the drainage bag;

[0023] The exhaust unit is connected to the drainage bag and is used to exhaust the gas in the drainage bag and to sample and collect the gas.

[0024] Furthermore, the exhaust unit includes an exhaust seat, an exhaust component, a sample gas collection component and a temporary storage component;

[0025] An exhaust seat is connected to the drainage bag, and comprises an upper valve seat, a middle valve seat and a lower valve seat, wherein the exhaust assembly, the sample gas collection assembly and the temporary storage assembly are respectively located on the lower valve seat, the middle valve seat and the upper valve seat;

[0026] An exhaust component is provided with a preset exhaust pressure to discharge the gas exceeding the preset pressure;

[0027] The gas sampling assembly is used to collect and sample the discharged gas during the gas discharge process;

[0028] The temporary storage component is used to collect the gas exceeding the set exhaust volume and adjust the gas pressure in the drainage bag or exhaust seat.

[0029] Furthermore, the exhaust assembly includes an air inlet and an air outlet opened on the lower valve seat, a fixed seat arranged in the lower valve seat, an adjusting part movably connected to the lower valve seat and located in the fixed seat, a sealing seat arranged on the adjusting part, and a sealing ball located on the sealing seat;

[0030] The fixing seat is a hollow structure with an air outlet at the top, wherein the sealing seat is hourglass-shaped with one end located inside the fixing seat and the other end located outside the fixing seat, and a space for gas flow is reserved between the outer wall of the fixing seat and the inner wall of the lower valve seat;

[0031] The air outlet end of the air inlet is connected to the space, and the air inlet end of the air outlet is connected to the interior of the fixing seat;

[0032] The sealing ball abuts against the sample gas collection component.

[0033] Further, the regulating part includes a first knob threadedly connected to the lower valve seat, a driving rod connected to the first knob, a limit block sleeved on the driving rod, and an exhaust spring located between the limit block and the first knob;

[0034] There is a predetermined gap between the first knob and the outer wall of the driving rod for accommodating one end of the exhaust spring;

[0035] The sealing seat has a predetermined elasticity;

[0036] The sealing seat is deformed by rotating the first knob, thereby applying a predetermined prestress to the sealing seat, so that when the gas pressure exceeds the preset prestress, the gas can be discharged.

[0037] Furthermore, the sample gas collection assembly includes a sampling cavity opened in the middle valve seat, a sampling seat arranged in the sampling cavity, a connecting block arranged on the sampling seat, an air outlet arranged on the middle valve seat and connected to the sampling cavity, and a sampling bottle connected to the air outlet;

[0038] The connecting block is provided with a conveying hole;

[0039] The sealing ball abuts against the connecting block to block or open the conveying hole;

[0040] By blocking or opening the delivery hole through the sealing ball, the airflow entering the sampling chamber is controlled so that the sample gas can be delivered to the sampling bottle along the air outlet hole to complete the sampling work.

[0041] Further, the temporary storage component includes a first air duct opened on the lower valve seat and connected to the air inlet duct, a second air duct located on the middle valve seat and connected to the first air duct, a third air duct provided on the upper valve seat and connected to the second air duct, a fourth air duct provided on the upper valve seat and connected to the third air duct, and a fifth air duct provided on the upper valve seat;

[0042] Wherein, a temporary storage cavity is provided on the upper valve seat, a groove is provided on the sampling seat, the fourth air duct is connected with the groove, and the fifth air duct is connected with the temporary storage cavity.

[0043] Furthermore, the temporary storage assembly also includes an adjusting rod threadedly connected to the upper valve seat, a second knob provided at one end of the adjusting rod, a driving seat connected to the other end of the adjusting rod, a limit seat located in the temporary storage cavity, and a limit portion provided on the limit seat;

[0044] A limit spring is also provided between the limit seat and the driving seat;

[0045] The driving seat is a hemispherical structure.

[0046] Furthermore, the limiting portion includes an air outlet seat arranged on the upper valve seat, a plurality of elastic support frames evenly arranged in the temporary storage cavity, a connecting ring for connecting the elastic support frames, and a sealing bead arranged on the connecting ring;

[0047] The gas outlet seat has a predetermined elasticity, a transmission hole is provided on the gas outlet seat, and the groove and the temporary storage cavity are communicated through the transmission hole.

[0048] Beneficial effect: The present invention discloses an intestinal drainage tube and drainage device for colon drainage. In order to complete the drainage and cleaning work of the patient's intestine, the device is provided with an injection assembly. Before the liquid injection and cleaning is performed, the injection liquid is connected to the injection nozzle through the infusion tube, and then the injection liquid can flow along the injection nozzle and the water injection channel to the water injection tube or the placement cavity. The liquid injected into the placement cavity can only flow from the water injection tube to the gap between the outer wall of the inner tube and the inner wall of the outer tube when the liquid level height is higher than the top of the water injection tube, and then the liquid is discharged from the water outlet pipe along the gap, thereby completing For the flushing work at the predetermined position, in this process, the injection nozzle used to inject liquid into the placement cavity is generally used to inject water or saline. The placement cavity can buffer the liquid to avoid excessive water flow rate and irritation to the human stomach and intestines. The injection nozzle that directly injects into the water injection pipe is generally used to inject lubricating oil, which is smooth when exiting the anal canal without damaging the intestines. Through the clamping assembly arranged at one end of the outer tube, the device can be connected to a drainage bag. Through the existing negative pressure device, a certain negative pressure is created in the drainage bag, thereby completing the drainage work through the inner tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 It is a schematic structural diagram of a drainage device of an intestinal drainage tube for colon drainage according to the present invention;

[0050] Figure 2 It is a schematic diagram of the structure of the outer tube and the inner tube of the present invention;

[0051] Figure 3 It is a schematic diagram of the water outlet pipe structure of the present invention;

[0052] Figure 4 It is a schematic diagram of the injection assembly structure of the present invention;

[0053] Figure 5 is a half-section view of an exhaust unit of the present invention;

[0054] Figure 6 is a perspective view of an exhaust assembly of the present invention;

[0055] Figure 7 is a schematic diagram of a sample gas collection assembly of the present invention;

[0056] Figure 8 is a schematic diagram of a temporary storage component of the present invention;

[0057] Fig. 9 It is a schematic diagram of the limiting portion of the present invention.

[0058] Figure numerals: 1, outer tube; 2, air bag; 3, flushing unit; 31, injection assembly; 311, mounting seat; 312, injection nozzle; 313, delivery pipe; 314, water injection channel; 315, water injection pipe; 32, connecting pipe; 33, sealing block; 34, guide block; 35, sealing ring; 36, water outlet pipe; 4, clamping assembly; 41, first connecting piece; 42, second connecting piece; 5, drainage bag; 6, exhaust unit; 61, exhaust seat; 611, lower valve seat; 612, middle valve seat; 613, upper valve seat; 62, exhaust assembly; 621, air outlet; 622, air inlet; 623, first knob; 624, drive rod; 62 5. Limit block; 626. Exhaust spring; 627. Sealing seat; 628. Sealing ball; 629. Fixed seat; 63. Temporary storage assembly; 631. First air duct; 632. Second air duct; 633. Third air duct; 634. Fourth air duct; 635. Fifth air duct; 636. Drive seat; 637. Limit spring; 638. Limit seat; 639. Elastic support frame; 6310. Sealing bead; 6311. Second knob; 6312. Air outlet seat; 6313. Connecting ring; 6314. Adjusting rod; 64. Sample gas collection assembly; 641. Sampling seat; 642. Connecting block; 643. Air outlet; 7. Inner tube; 8. Transfer tube. DETAILED DESCRIPTION

[0059] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0060] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0061] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0062] The present invention discloses an intestinal drainage tube and a drainage device for colon drainage, referring to Figure 1-Figure 9 , an intestinal drainage tube for colon drainage comprises:

[0063] An outer tube 1, and an air bag 2 arranged at one end of the outer tube 1; an inner tube 7, located inside the outer tube 1, for the passage of the drained object, and a predetermined gap between the outer wall of the inner tube 7 and the inner wall of the outer tube 1; a flushing unit 3, arranged on the outer tube 1, for transporting different liquids into the gap and allowing the liquid to flow into a predetermined position; the flushing unit 3 includes an injection assembly 31, a connecting pipe 32, a sealing ring 35 and a water outlet pipe 36; the sealing ring 35 is used to connect the outer tube 1 and the inner tube 7; the water outlet pipe 36 is a plurality of pipes, which are evenly arranged on the sealing ring 35 and communicated with the gap; the injection assembly 31, connected to the inner tube 7, The connecting tube 32 is connected, and the connecting tube 32 is communicated with the gap. The liquid is transported to the gap through the cooperation of the injection component 31 and the connecting tube 32; the airbag 2 is a conical structure, so by inflating the conical airbag 2, it is not only convenient to insert the airbag 2, but also can complete the fixation of the drainage tube, ensure the stability of the drainage tube, and avoid the drainage tube from falling. The gap between the inner tube 7 and the outer tube 1 is set as a flow channel for the liquid, and then different liquids can be used to clean or disinfect the patient's predetermined position, and even lubricating liquid can be injected to ensure smooth withdrawal of the anal canal without damaging the intestine.

[0064] The injection assembly 31 includes a mounting seat 311, at least two injection nozzles 312 arranged on the mounting seat 311, a placement cavity and two water injection channels 314 are provided on the mounting seat 311, and a water injection pipe 315 is provided in the placement cavity; the water inlet end of the water injection pipe 315 is a predetermined distance away from the bottom of the placement cavity, and the water outlet end of the water injection pipe 315 is connected to the connecting pipe 32; one end of the two water injection channels 314 is respectively connected to the placement cavity, and the other end of the two water injection channels 314 is respectively connected to the two injection nozzles 312; wherein the connection points of the two water injection channels 314 and the inner wall of the placement cavity are located at different heights, wherein a delivery pipe 313 is provided between the water injection channel 314 far away from the bottom of the placement cavity and the water injection pipe 315; before the injection cleaning is performed, the injection liquid is connected to the injection nozzle 312 through the infusion tube, and then the injection liquid can flow along the injection nozzle 3 12 and the water injection channel 314 flow to the water injection pipe 315 or the placement cavity. The liquid injected into the placement cavity can only flow from the water injection pipe 315 to the gap between the outer wall of the inner tube 7 and the inner wall of the outer tube 1 when the liquid level is higher than the top of the water injection pipe 315. Then the liquid is discharged from the outlet pipe 36 along the gap, thereby completing the flushing of the predetermined position. In this process, the injection nozzle 312 used to inject liquid into the placement cavity is generally used to inject water or saline. The placement cavity is provided to buffer the liquid to avoid excessive water flow rate and irritation to the human stomach and intestines. The injection nozzle 312 that directly injects into the water injection pipe 315 is generally used to inject lubricating oil, which is smooth when exiting the anal canal and does not hurt the intestines. The lubricating oil is directly injected into the water injection pipe 315, so it will not remain in the placement cavity, thereby avoiding waste of lubricating oil.

[0065] In a further embodiment, it is necessary to sample and test the gas in the patient's body in the following two situations. One is when the doctor suspects infection or complications, that is, if the patient has abnormal symptoms such as fever, abdominal pain, abdominal distension, etc. after the operation, the doctor may suspect the existence of abdominal infection or complications (such as gastrointestinal perforation); in this case, the doctor will consider sampling and testing the abdominal gas to understand whether there are abnormal gas components or bacteria. The second is a special examination after laparoscopic surgery: In laparoscopic surgery, in order to create a surgical field of view, it is usually necessary to inject CO2 gas into the abdominal cavity to form pneumoperitoneum. After the operation, if the doctor suspects that the pneumoperitoneum has not completely dissipated or there are other abnormal conditions, he may consider sampling and testing the abdominal gas. However, direct sampling is too difficult.

[0066] In order to solve the above problems, the present invention further provides a drainage device, which includes an intestinal drainage tube and a clamping assembly 4, a drainage bag 5, a transfer tube 8 and an exhaust unit 6; the clamping assembly 4 includes a first connecting member 41 and a second connecting member 42, wherein the first connecting member 41 is arranged on the outer tube 1 and the first connecting member 41 is provided with a clamping groove, the second connecting member 42 is located on the transfer tube 8 and the second connecting member 42 is provided with a protrusion adapted to the clamping groove; the drainage bag 5 is used to receive the drainage; the transfer tube 8 is used to connect the clamping assembly 4 and the drainage bag 5 so that The drainage material can be transported to the drainage bag 5; the exhaust unit 6 is connected to the drainage bag 5, and is used to exhaust the gas in the drainage bag 5 and collect samples of the gas; when there is more gas in the drainage bag 5, although there is not much drainage in the drainage bag 5, the volume of the drainage bag 5 will increase under the influence of the gas, and the exhaust unit 6 is set to complete the exhaust of the gas in the drainage bag 5. During the exhaust process, the gas is sampled, so that the sample gas can be detected, and there is no need to directly sample the patient's abdominal cavity, thereby avoiding secondary injury to the patient.

[0067] The exhaust unit 6 includes an exhaust seat 61, an exhaust component 62, a sample gas collection component 64 and a temporary storage component 63; the exhaust seat 61 is connected to the drainage bag 5, and includes an upper valve seat 613, a middle valve seat 612 and a lower valve seat 611, and the exhaust component 62, the sample gas collection component 64 and the temporary storage component 63 are respectively located on the lower valve seat 611, the middle valve seat 612 and the upper valve seat 613; the exhaust component 62 presets an exhaust pressure and discharges the gas exceeding the preset pressure; the sample gas collection component 64 is used to collect and sample the discharged gas during the gas discharge process; the temporary storage component 63 is used to collect the gas exceeding the predetermined exhaust volume and adjust the gas pressure in the drainage bag 5 or the exhaust seat 61.

[0068] The exhaust assembly 62 includes an air inlet 622 and an air outlet 621 opened on the lower valve seat 611, a fixed seat 629 arranged in the lower valve seat 611, an adjusting portion movably connected to the lower valve seat 611 and located in the fixed seat 629, a sealing seat 627 arranged on the adjusting portion, and a sealing ball 628 located on the sealing seat 627; the fixed seat 629 is a hollow structure, and a gas outlet hole 643 is arranged on the top thereof, wherein the sealing seat 627 is hourglass-shaped, one end of which is located in the fixed seat 629, and the other end is located outside the fixed seat 629, and a space for gas flow is reserved between the outer wall of the fixed seat 629 and the inner wall of the lower valve seat 611; the outlet end of the air inlet 622 is connected to the space, and the outlet end of the air outlet 621 is The air inlet end is connected to the fixed seat 629; the sealing ball 628 is in contact with the sample gas collection assembly 64; the regulating part includes a first knob 623 threadedly connected to the lower valve seat 611, a driving rod 624 connected to the first knob 623, a limit block 625 sleeved on the driving rod 624, and an exhaust spring 626 located between the limit block 625 and the first knob 623; wherein there is a predetermined gap between the first knob 623 and the outer wall of the driving rod 624 for placing one end of the exhaust spring 626; the sealing seat 627 has a predetermined elasticity; by rotating the first knob 623, the sealing seat 627 is deformed, thereby applying a predetermined prestress to the sealing seat 627, so that when the air pressure exceeds the preset prestress, the gas can be discharged;

[0069] Before drainage, the medical staff turns the first knob 623, and the moving first knob 623 can drive the driving rod 624 to move, thereby adjusting the position of the limit block 625, so that the limit block 625 abuts against the air outlet 643 at the top of the fixing seat 629, and the sealing seat 627 is deformed. Then, the deformation of the exhaust spring 626 is controlled by the number of turns of the first knob 623, so as to adjust the preset elastic force. Then, when drainage is performed, the gas flows into the drainage bag 5 along the drainage flow. As the gas in the drainage bag 5 increases, the gas pushes the sealing seat 627. 27 moves in the direction of the first knob 623, so that a gap is generated between the air outlet hole 643 and the sealing seat 627, and then the gas in the drainage bag 5 can enter the fixed seat 629 along the gap between the air inlet 622, the air outlet hole 643 and the sealing seat 627, and then be discharged from the air outlet 621, thereby completing the gas discharge work; by rotating the set first knob 623, a certain pressure can be preset, so that the air pressure in the drainage bag 5 can be automatically deflated after reaching a certain value, or the deflation work can be performed manually to prevent the drainage bag 5 from rupture due to excessive pressure.

[0070] The sample gas collection assembly 64 includes a sampling cavity opened in the middle valve seat 612, a sampling seat 641 arranged in the sampling cavity, a connecting block 642 arranged on the sampling seat 641, an air outlet 643 arranged on the middle valve seat 612 and connected to the sampling cavity, and a sampling bottle connected to the air outlet 643; a delivery hole is opened on the connecting block 642; the sealing ball 628 abuts against the connecting block 642 to block or open the delivery hole; the sealing ball 628 blocks or opens the delivery hole to control the air flow entering the sampling cavity, so that the sample gas can be transported to the sampling bottle along the air outlet 643 , completing the sampling work; during the deflation process, the sealing seat 627 moves toward the direction of the first knob 623, thereby adjusting the position of the sealing ball 628, so that the sealing ball 628 also moves toward the direction of the first knob 623. At this time, the sealing ball 628 is away from the connecting hole on the connecting block 642, and the gas can enter the sampling seat 641 along the connecting hole, and be discharged from the air outlet 643 along the sampling cavity in the sampling seat 641 and move into the sampling bottle, thereby completing the sampling of the gas. Therefore, sampling and testing can be carried out during the exhaust process, and there is no need to directly sample the patient's abdomen, avoiding secondary injury to the patient.

[0071] The temporary storage component 63 includes a first air duct 631 opened on the lower valve seat 611 and connected to the air inlet duct 622, a second air duct 632 located on the middle valve seat 612 and connected to the first air duct 631, a third air duct 633 provided on the upper valve seat 613 and connected to the second air duct 632, a fourth air duct 634 provided on the upper valve seat 613 and connected to the third air duct 633, and a fifth air duct 635 provided on the upper valve seat 613; wherein a temporary storage cavity is opened on the upper valve seat 613, a groove is provided on the sampling seat 641, the fourth air duct 634 is connected to the groove, one end of the fifth air duct 635 is connected to the temporary storage cavity, and the other end is connected to the temporary storage tank; the temporary storage tank is a prior art; the temporary storage component 63 also includes an adjustment screwed to the upper valve seat 613 Rod 6314, a second knob 6311 arranged at one end of the adjusting rod 6314, a driving seat 636 connected to the other end of the adjusting rod 6314, a limiting seat 638 located in the temporary storage chamber, and a limiting portion arranged on the limiting seat 638; a limiting spring 637 is also arranged between the limiting seat 638 and the driving seat 636; the driving seat 636 is a hemispherical structure; the limiting portion includes an outlet seat 6312 arranged on the upper valve seat 613, a plurality of elastic support frames 639 evenly arranged in the temporary storage chamber, a connecting ring 6313 for connecting the elastic support frames 639, and a sealing bead 6310 arranged on the connecting ring 6313; the outlet seat 6312 has a predetermined elasticity, a transmission hole is opened on the outlet seat 6312, and the groove and the temporary storage chamber are connected through the transmission hole;

[0072] Since the gas discharged from the outlet 621 has a certain odor, it needs to be collected and purified to meet the established standards before being discharged. Since the collection bag has a certain volume, the collection bag needs to be replaced when the gas is full. During the replacement process, the air pressure in the drainage bag 5 needs to be released continuously. At this time, the first knob 623 is turned to adjust the pressure between the sealing ball 628 and the connecting block 642, so that the pressure of the sealing seat 627 on the fixed seat 629 is less than the pressure of the sealing bead 6310 on the outlet seat 6312, and the gas enters the drainage bag 5. The gas in the air seat 61 can be located in the groove on the sampling seat 641 along the first air duct 631, the second air duct 632, the third air duct 633, and the fourth air duct 634, and push the sealing bead 6310 to make the sealing bead 6310 away from the air outlet seat 6312, so that the gas can be located in the temporary storage cavity, and then the gas can be transported to the temporary storage tank along the fifth air duct 635 connected to the temporary storage cavity, and then in the process of replacing the collection bag, the gas pressure in the drainage bag 5 can still be adjusted to avoid excessive gas pressure in the drainage bag 5, which will lead to failure of drainage work.

[0073] In a further embodiment, when the exhaust assembly 62 is working, an adsorption device such as activated carbon may be placed at the exhaust port to remove odors from the gas;

[0074] The inner tube 7 is also sleeved with a sealing block 33 and a guide block 34 , and the sealing block 33 and the guide block 34 abut against the inner wall of the outer tube 1 , wherein the guide block 34 is provided with a plurality of communicating holes in the axial direction.

[0075] Working principle description: Before the liquid injection and cleaning, the injection liquid is connected to the injection nozzle 312 through the infusion tube, and then the injection liquid can flow along the injection nozzle 312 and the water injection channel 314 to the water injection pipe 315 or the placement cavity. The liquid injected into the placement cavity can only flow from the water injection pipe 315 to the gap between the outer wall of the inner tube 7 and the inner wall of the outer tube 1 when the liquid level is higher than the top of the water injection pipe 315. Then the liquid is discharged from the outlet pipe 36 along the gap, thereby completing the flushing work of the predetermined position. Through the clamping assembly 4 arranged at one end of the outer tube 1, Furthermore, the device can be connected to an external drainage bag 5, and a certain negative pressure is created in the drainage bag 5 through an existing negative pressure device, so that drainage work is completed through the provided inner tube 7; when there is more gas in the drainage bag 5, although there is not much drainage in the drainage bag 5, the volume of the drainage bag 5 will become larger under the influence of the gas, and the gas exhaust work in the drainage bag 5 is completed through the provided exhaust unit 6. During the exhaust process, the gas is sampled, so that the sample gas can be detected, and then there is no need to directly sample the patient's abdominal cavity, thereby avoiding secondary damage to the patient;

[0076] During exhaust: before performing drainage, the medical staff rotates the first knob 623, and the moving first knob 623 can drive the driving rod 624 to move, thereby adjusting the position of the limit block 625, so that the limit block 625 abuts against the air outlet 643 at the top of the fixing seat 629, and the sealing seat 627 is deformed, and then the deformation of the exhaust spring 626 is controlled by the number of turns of the first knob 623, so as to adjust the preset elastic force, and then during drainage, the gas flows into the drainage bag 5 along the drainage flow, and as the gas in the drainage bag 5 increases, the gas will push the sealing seat 627 to the bottom of the bag. The seat 627 moves toward the direction of the first knob 623, so that a gap is generated between the air outlet hole 643 and the sealing seat 627, and then the gas in the drainage bag 5 can enter the fixed seat 629 along the gap between the air inlet 622, the air outlet hole 643 and the sealing seat 627, and then be discharged from the air outlet 621, thereby completing the gas discharge work; by rotating the first knob 623, a certain pressure can be preset, so that the air pressure in the drainage bag 5 can be automatically deflated after reaching a certain value, or the deflation work can be performed manually to prevent the drainage bag 5 from being ruptured due to excessive pressure;

[0077] When collecting sample gas: during the process of deflation, the sealing seat 627 moves toward the direction of the first knob 623, thereby adjusting the position of the sealing ball 628, so that the sealing ball 628 also moves toward the direction of the first knob 623. At this time, the sealing ball 628 is away from the connecting hole on the connecting block 642, and the gas can enter the sampling seat 641 along the connecting hole, and be discharged from the gas outlet 643 along the sampling cavity in the sampling seat 641 and moved to the sampling bottle, thereby completing the sampling of the gas. Therefore, sampling and testing can be carried out during the exhaust process, and there is no need to directly sample the patient's abdomen, thereby avoiding secondary damage to the patient;

[0078] During the temporary storage of gas: during the replacement process, it is necessary to continue to release the air pressure in the drainage bag 5. At this time, turn the first knob 623 to adjust the pressure between the sealing ball 628 and the connecting block 642, so that the pressure of the sealing seat 627 on the fixed seat 629 is less than the pressure of the sealing bead 6310 on the air outlet seat 6312. The gas entering the exhaust seat 61 can follow the first air duct 631, the second air duct 632, the third air duct 633, and the fourth air duct 634 and then be located in the groove on the sampling seat 641, and push the sealing bead 6310 to make the sealing bead 6310 away from the air outlet seat 6312, so that the gas can be located in the temporary storage cavity, and then the gas can be transported to the temporary storage tank along the fifth air duct 635 connected to the temporary storage cavity. In the process of replacing the collection bag, the gas pressure in the drainage bag 5 can still be adjusted to avoid excessive gas pressure in the drainage bag 5, which will lead to failure of drainage work.

[0079] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical scheme of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. An intestinal drainage tube for colon drainage, characterized in that: include: An outer tube (1), and an air bag (2) arranged at one end of the outer tube (1); An inner tube (7) is located inside the outer tube (1) and is used for the passage of the drained material, and a predetermined gap exists between the outer wall of the inner tube (7) and the inner wall of the outer tube (1); A flushing unit (3) is arranged on the outer tube (1) and is used to transport different liquids into the gap and allow the liquids to flow into a predetermined position; The flushing unit (3) comprises an injection assembly (31), a connecting pipe (32), a sealing ring (35) and a water outlet pipe (36); A sealing ring (35) for connecting the outer tube (1) and the inner tube (7); A plurality of water outlet pipes (36) are evenly arranged on the sealing ring (35) and communicated with the gap; The injection assembly (31) is connected to the connecting pipe (32), and the connecting pipe (32) is in communication with the gap. The liquid is transported into the gap through the cooperation between the injection assembly (31) and the connecting pipe (32).

2. An intestinal drainage tube for colon drainage according to claim 1, characterized in that: The injection assembly (31) comprises a mounting seat (311), at least two injection nozzles (312) arranged on the mounting seat (311), a placement cavity and two water injection channels (314) provided on the mounting seat (311), and a water injection pipe (315) arranged in the placement cavity; The water inlet end of the water injection pipe (315) is a predetermined distance away from the bottom of the placement cavity, and the water outlet end of the water injection pipe (315) is connected to the connecting pipe (32); One end of the two water injection channels (314) is respectively connected to the placement cavity, and the other end of the two water injection channels (314) is respectively connected to the two injection nozzles (312); The connection points between the two water injection channels (314) and the inner wall of the placement chamber are located at different heights, and a delivery pipe (313) is provided between the water injection channel (314) far from the bottom of the placement chamber and the water injection pipe (315).

3. A drainage device, comprising an intestinal drainage tube for colon drainage according to any one of claims 1 to 2, characterized in that: It also includes a clamping assembly (4), a drainage bag (5), a transfer tube (8) and an exhaust unit (6); A snap-fit ​​assembly (4), comprising a first connecting piece (41) and a second connecting piece (42), wherein the first connecting piece (41) is arranged on the outer tube (1) and is provided with a snap-fit ​​groove, and the second connecting piece (42) is located on the transfer tube (8) and is provided with a protrusion adapted to the snap-fit ​​groove; A drainage bag (5) for receiving drainage material; A transfer tube (8) is used to connect the clamping assembly (4) and the drainage bag (5) so that the drainage material can be transported into the drainage bag (5); The exhaust unit (6) is connected to the drainage bag (5) and is used to exhaust the gas in the drainage bag (5) and to sample and collect the gas.

4. A drainage device according to claim 3, characterized in that: The exhaust unit (6) comprises an exhaust seat (61), an exhaust component (62), a sample gas collection component (64) and a temporary storage component (63); An exhaust seat (61) is connected to the drainage bag (5), and comprises an upper valve seat (613), a middle valve seat (612) and a lower valve seat (611), wherein the exhaust assembly (62), the sample gas collection assembly (64) and the temporary storage assembly (63) are respectively located on the lower valve seat (611), the middle valve seat (612) and the upper valve seat (613); An exhaust component (62) is configured to preset an exhaust pressure and discharge gas exceeding the preset pressure; A gas sampling assembly (64) is used to collect and sample the discharged gas during the gas discharge process; The temporary storage component (63) is used to collect gas exceeding a predetermined exhaust volume and adjust the gas pressure in the drainage bag (5) or the exhaust seat (61).

5. A drainage device according to claim 4, characterized in that: The exhaust assembly (62) comprises an air inlet (622) and an air outlet (621) provided on the lower valve seat (611), a fixed seat (629) provided in the lower valve seat (611), an adjusting portion movably connected to the lower valve seat (611) and located in the fixed seat (629), a sealing seat (627) provided on the adjusting portion, and a sealing ball (628) located on the sealing seat (627); The fixing seat (629) is a hollow structure, and a gas outlet (643) is provided on the top thereof, wherein the sealing seat (627) is in the shape of an hourglass, one end of which is located inside the fixing seat (629) and the other end is located outside the fixing seat (629), and a space for gas flow is reserved between the outer wall of the fixing seat (629) and the inner wall of the lower valve seat (611); The air outlet end of the air inlet (622) is connected to the space, and the air inlet end of the air outlet (621) is connected to the interior of the fixing seat (629); The sealing ball (628) abuts against the sample gas collection assembly (64).

6. A drainage device according to claim 5, characterized in that: The regulating portion comprises a first knob (623) threadedly connected to the lower valve seat (611), a driving rod (624) connected to the first knob (623), a limit block (625) sleeved on the driving rod (624), and an exhaust spring (626) located between the limit block (625) and the first knob (623); There is a predetermined gap between the first knob (623) and the outer wall of the driving rod (624) for placing one end of the exhaust spring (626); The sealing seat (627) has a predetermined elasticity; By rotating the first knob (623), the sealing seat (627) is deformed, thereby applying a predetermined prestress to the sealing seat (627), so that when the gas pressure exceeds the preset prestress, the gas can be discharged.

7. A drainage device according to claim 5, characterized in that: The sample gas collection assembly (64) comprises a sampling cavity opened in the middle valve seat (612), a sampling seat (641) arranged in the sampling cavity, a connecting block (642) arranged on the sampling seat (641), an air outlet (643) arranged on the middle valve seat (612) and connected to the sampling cavity, and a sampling bottle connected to the air outlet (643); The connecting block (642) is provided with a conveying hole; The sealing ball (628) abuts against the connecting block (642) to block or open the conveying hole; By blocking or opening the delivery hole with the sealing ball (628), the airflow entering the sampling cavity is controlled so that the sample gas can be delivered to the sampling bottle along the air outlet hole (643), thereby completing the sampling work.

8. A drainage device according to claim 7, characterized in that: The temporary storage component (63) comprises a first air duct (631) opened on the lower valve seat (611) and connected to the air inlet duct (622), a second air duct (632) located on the middle valve seat (612) and connected to the first air duct (631), a third air duct (633) provided on the upper valve seat (613) and connected to the second air duct (632), a fourth air duct (634) provided on the upper valve seat (613) and connected to the third air duct (633), and a fifth air duct (635) provided on the upper valve seat (613); Wherein, a temporary storage cavity is provided on the upper valve seat (613), a groove is provided on the sampling seat (641), the fourth air duct (634) is connected to the groove, and the fifth air duct (635) is connected to the temporary storage cavity.

9. A drainage device according to claim 8, characterized in that: The temporary storage assembly (63) further comprises an adjusting rod (6314) threadedly connected to the upper valve seat (613), a second knob (6311) disposed at one end of the adjusting rod (6314), a driving seat (636) connected to the other end of the adjusting rod (6314), a limiting seat (638) located in the temporary storage chamber, and a limiting portion disposed on the limiting seat (638); A limit spring (637) is also provided between the limit seat (638) and the driving seat (636); The driving seat (636) is a hemispherical structure.

10. A drainage device according to claim 9, characterized in that: The limiting portion includes an air outlet seat (6312) arranged on the upper valve seat (613), a plurality of elastic support frames (639) evenly arranged in the temporary storage cavity, a connecting ring (6313) for connecting the elastic support frames (639), and a sealing bead (6310) arranged on the connecting ring (6313); The air outlet seat (6312) has a predetermined elasticity, and a transmission hole is provided on the air outlet seat (6312), and the groove and the temporary storage cavity are connected through the transmission hole.

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