Nasal gastrointestinal cannula capable of positioning in minimally invasive surgery

Abstract

The invention provides an alimentary canal nasal gastrointestinal cannula capable of realizing positioning in a minimally invasive surgery. The alimentary canal nasal gastrointestinal cannula is characterized by comprising a nasal gastrointestinal cannula body and a positioning mechanism, the positioning mechanism penetrates through the length of the whole nasal gastrointestinal cannula body and is provided with a plurality of light-emitting components; and the light-emitting components are arranged at intervals or positions of specific distances and are used for positioning the whole or local part of the nasal gastrointestinal intubation tube body. Therefore, intubation can be completed quickly and accurately.

Description

Technical Field

[0001] The invention relates to a medical auxiliary appliance, in particular to a nasogastric intubation tube which can be positioned in minimally invasive surgery. Background Art

[0002] Patients who have just completed surgery and are unable to eat on their own, or unconscious patients, all need to have a nasogastric tube inserted. However, in current clinical practice, when the chest is opened for surgery, the physician can intuitively determine the direction of the tube by feel and complete the insertion. However, considering the speed of postoperative healing and the risk of infection caused by open surgery, current clinical surgery is more inclined to use minimally invasive surgical solutions. However, when minimally invasive surgery requires tube insertion, the process becomes very difficult. Since the window for minimally invasive surgery is extremely small, the tube needs to be inserted as Figure 1 As shown, the target position can only be reached by continuously passing through the cardia and pylorus. In the minimally invasive state, the physician cannot judge the direction of the catheter by touch. Therefore, the catheterization process is often extremely challenging for the physician's personal experience and ability, which will waste a lot of operation time and increase the difficulty of the operation.

[0003] In addition, in some double-line intubation operations, the intestinal intubation segment (black) needs to be Figure 2 As shown, the target position can be reached by continuously passing through the cardia and pylorus. At the same time, the gastric tube insertion section (dark gray) is required to be located exactly between the cardia and pylorus, and the closer to the pylorus, the better. In the minimally invasive state, the physician cannot judge the direction of the intestinal tube (especially the liquid outflow position of the intestinal tube) and the position of the hole by touch, and whether the gastric tube section reaches the appropriate position between the cardia and pylorus. Therefore, in the process of catheterization of such tubes, since it is necessary to judge the positions of the two tubes, it is more challenging for the physician's personal experience and ability, and thus a lot of operation time will be wasted, increasing the difficulty of the operation. Summary of the invention

[0004] The present invention aims to overcome the above-mentioned defects and provide a solution which has a simple structure, a high degree of accessory integration, is easy to operate, and can be applied to quickly implement nasogastric intubation and placement in minimally invasive surgery.

[0005] The present invention provides a digestive tract nasogastric intubation tube that can be positioned in minimally invasive surgery, which is characterized by:

[0006] It includes a nasogastric intubation tube body and a positioning mechanism;

[0007] The positioning mechanism runs through the entire length of the nasogastric intubation tube body and has a plurality of light-emitting components;

[0008] The above-mentioned light-emitting components are arranged at intervals or positions of specific distances to locate the entire or part of the nasogastric intubation tube body.

[0009] Furthermore, the present invention provides a digestive tract nasogastric intubation tube that can be positioned in minimally invasive surgery, which is also characterized by:

[0010] The nasogastric intubation tube body has a fluid input end and an output end;

[0011] The input end is provided with a connector for connecting with a fluid input device;

[0012] The output end is a sealed structure, and the proximal end of the sealed end has a liquid outlet.

[0013] Furthermore, the present invention provides a digestive tract nasogastric intubation tube that can be positioned in minimally invasive surgery, which is also characterized by:

[0014] The light emitting component points to the position of the liquid outlet.

[0015] Furthermore, the present invention provides a digestive tract nasogastric intubation tube that can be positioned in minimally invasive surgery, which is also characterized by:

[0016] The above-mentioned nasogastric intubation tube body has a pre-buried groove;

[0017] The positioning mechanism is embedded in the embedded groove by embedding.

[0018] or

[0019] The above-mentioned nasogastric intubation tube body is a double-layer structure, comprising an inner tube and an outer tube which are nested;

[0020] The inner tube can accommodate a guide wire to pass through;

[0021] The positioning mechanism is arranged between the inner tube and the outer tube.

[0022] Furthermore, the present invention provides a digestive tract nasogastric intubation tube that can be positioned in minimally invasive surgery, which is also characterized by:

[0023] The above-mentioned nasogastric intubation body includes a nasogastric intubation and a nasointestinal intubation;

[0024] The rear ends of the nasogastric cannula and the nasointestinal cannula form a double-chamber shape at the rear end of the nasogastric cannula body;

[0025] The front end of the nasogastric cannula is formed into a single tube shape at the front end of the nasogastric cannula body;

[0026] The positioning mechanism runs through the entire length of the nasogastric intubation tube body and has a plurality of light-emitting components;

[0027] The above-mentioned light-emitting components are arranged at intervals or positions of specific distances to locate the entirety or part of the nasointestinal section cannula, and to distinguish the location of the nasogastric section cannula.

[0028] Furthermore, the present invention provides a digestive tract nasogastric intubation tube that can be positioned in minimally invasive surgery, which is also characterized by:

[0029] The above-mentioned nasointestinal segment cannula has an intestinal segment fluid input end and an intestinal segment fluid output end;

[0030] The intestinal fluid input end is provided with a connector for connecting to the intestinal fluid input device;

[0031] The intestinal fluid output end is a sealed end structure, and the proximal end of the sealed end has an intestinal fluid outlet hole;

[0032] The nasogastric cannula has a gastric fluid input end and a gastric fluid output end;

[0033] The above-mentioned gastric segment fluid input end is equipped with a connector to connect with the gastric segment fluid input device;

[0034] The gastric fluid output end is a sealed structure, and the proximal end of the sealed end is provided with a gastric fluid outlet hole.

[0035] Furthermore, the present invention provides a digestive tract nasogastric intubation tube that can be positioned in minimally invasive surgery, which is also characterized by:

[0036] The light-emitting component points to the position of the fluid outlet hole of the intestinal segment;

[0037] and

[0038] The light emitting assembly also points to the location of the fluid outlet of the stomach segment and makes an indication different from the fluid outlet of the nasointestinal segment cannula or the intestinal segment.

[0039] Furthermore, the present invention provides a digestive tract nasogastric intubation tube that can be positioned in minimally invasive surgery, which is also characterized by:

[0040] The above-mentioned nasogastric intubation tube body has a pre-buried groove;

[0041] The positioning mechanism is embedded in the embedded groove by embedding.

[0042] or

[0043] The above-mentioned nasogastric intubation tube body is a double-layer structure, comprising an inner tube and an outer tube which are nested;

[0044] The positioning mechanism is arranged between the inner tube and the outer tube.

[0045] Furthermore, the present invention provides a digestive tract nasogastric intubation tube that can be positioned in minimally invasive surgery, which is also characterized by:

[0046] The positioning mechanism is detachably connected to the nasogastric intubation tube body.

[0047] Furthermore, the present invention provides a digestive tract nasogastric intubation tube that can be positioned in minimally invasive surgery, which is also characterized by:

[0048] The above-mentioned light-emitting assembly comprises light-emitting elements of different light colors;

[0049] The light emitting elements of different light colors are respectively arranged at different positions of the nasogastric intubation tube body, or represent specific positions, or represent specific length ranges.

[0050] Furthermore, the present invention provides a digestive tract nasogastric intubation tube that can be positioned in minimally invasive surgery, which is also characterized by:

[0051] A light-emitting component is arranged around the liquid outlet hole;

[0052] or

[0053] The nasogastric intubation tube body is provided with a light-emitting component at a position opposite to the liquid outlet.

[0054] Furthermore, the present invention provides a digestive tract nasogastric intubation tube that can be positioned in minimally invasive surgery, which is also characterized by:

[0055] The sealed inner surface of the nasogastric intubation tube body has a detachable structure;

[0056] The light-emitting component and the end cap are connected via a removable structure.

[0057] Furthermore, the present invention provides a digestive tract nasogastric intubation tube that can be positioned in minimally invasive surgery, which is also characterized by:

[0058] The outer surface of the nasogastric intubation tube body is provided with scales. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] Figure 1 , Specific route diagram of nasogastric intubation; 1A is single-tube mode, 1B is double-tube mode;

[0060] Figure 2 , a schematic diagram of a nasogastric intubation structure that can be positioned during minimally invasive surgery provided in this embodiment;

[0061] Figure 3 , a schematic cross-sectional view of a nasogastric intubation tube that can be positioned during minimally invasive surgery provided in this embodiment;

[0062] Figure 4 , a schematic diagram of a double-layer structure of a nasogastric intubation tube that can be positioned during minimally invasive surgery provided in this embodiment;

[0063] Figure 5 , a schematic diagram of a disengagement structure of a nasogastric intubation tube that can be positioned during minimally invasive surgery provided in this embodiment;

[0064] Figure 6 , a schematic diagram of the arrangement of a light-emitting component of a nasogastric intubation tube that can be positioned during minimally invasive surgery provided by this embodiment;

[0065] Figure 7 , a practical demonstration diagram of a nasogastric intubation method that can be positioned during minimally invasive surgery provided in this embodiment;

[0066] Figure 8 , a schematic diagram of the structure of a double-tube nasogastric intubation tube for the digestive tract that can be positioned in minimally invasive surgery provided in this embodiment;

[0067] Fig. 9 , a schematic diagram of the arrangement of the light emitting components of another double-tube nasogastric intubation tube for the digestive tract that can be positioned in minimally invasive surgery provided by this embodiment;

[0068] Fig.10 , a schematic cross-sectional view of a double-tube nasogastric intubation tube for the digestive tract that can be positioned in minimally invasive surgery provided in this embodiment;

[0069] Fig.11 , a schematic diagram of a double-layer structure of a double-tube nasogastric intubation tube for the digestive tract that can be positioned in minimally invasive surgery provided in this embodiment;

[0070] Fig.12 , a schematic diagram of the disassembly structure of a double-tube nasogastric intubation tube for the digestive tract that can be positioned in minimally invasive surgery provided in this embodiment;

[0071] Fig.13 , a schematic diagram of the arrangement of light-emitting components of a double-tube nasogastric intubation tube for the digestive tract that can be positioned in minimally invasive surgery provided in this embodiment; DETAILED DESCRIPTION

[0072] The present invention is capable of various modifications and various embodiments, and therefore specific embodiments are illustrated and described in the accompanying drawings. However, this is not intended to limit the present invention to specific implementations, but should be understood to include all modifications, equivalents, and even substitutes that fall within the concept and technical scope of the present invention.

[0073] Example 1

[0074] like Figure 2As shown, this embodiment provides a nasogastric intubation tube that can be positioned in minimally invasive surgery, which includes a nasogastric intubation tube body 100 and a positioning mechanism 200;

[0075] The appearance of the nasogastric intubation tube body 100 is similar to that of a conventional nasogastric intubation tube, that is, it has a fluid input end and an output end;

[0076] The input end is located outside the nasal cavity after the catheter is placed, and is equipped with a connector to connect to the fluid input device 110;

[0077] The output end is a sealing structure 120, and the proximal end of the sealing end has a liquid outlet 121, so that when the catheter is placed, life-sustaining substances such as nutrients flow into the intestine from the liquid outlet.

[0078] The positioning mechanism 200 runs through the entire length of the nasogastric intubation tube body and has a plurality of light emitting components 210;

[0079] The light emitting components 210 are arranged at specific intervals or positions to locate the entire or a part of the nasogastric intubation tube body.

[0080] The specific distance refers to the distance specified at the beginning of the design, for example: a light point is set every 5 cm, so the depth of the tube body can be determined by counting the number of light points passing through the observation port.

[0081] The specific position can be the terminal (i.e., the deepest end of the display tube after entering the body), the liquid outlet (i.e., the position of the liquid outlet to ensure that the liquid outlet is located in the target intestine). The arrangement of the light-emitting points at the position of the liquid outlet can be in a circle around the liquid outlet, near the liquid outlet, or at the inner wall of the tube opposite to the liquid outlet.

[0082] There are several ways to fix the positioning mechanism 200 and the nasogastric intubation tube body 100 to each other:

[0083] Solution 1: Figure 2 As shown, the positioning mechanism 200 is in the shape of a light beam or linear LED, one end of which is fixed to the sealing end, and passes through the entire length of the nasogastric intubation tube body along the inner tube wall to reach the outlet end.

[0084] Option 2: Figure 3 As shown, the nasogastric intubation tube body 100 has a pre-buried groove 101, which is C-shaped so that the positioning mechanism 200 implanted therein can be clamped;

[0085] The positioning mechanism 200 is in the shape of a light beam or a linear LED and is embedded in the embedded groove 101 by way of embedding.

[0086] When the positioning mechanism is buried, the lateral opening of the groove can be closed by heat shrinking, sealing, etc., or it can be left unclosed. Since the medical light beam that can be used in this device is a low-voltage and low-current component, and the catheterization time is extremely short, the power is cut off when the catheterization is completed, and there is no risk of burns to the human body.

[0087] Option 3: Figure 4 As shown, the nasogastric intubation tube body 100 is a double-layer structure, including an inner tube 100A and an outer tube 100B which are nested. The inner tube 100A and the outer tube 100B need to reserve the position of the liquid outlet hole 121, that is, the liquid outlet hole 121 is connected to the inner tube and is not connected to the outer tube, so that the space between the inner and outer tubes is a space without any interaction with the fluid or body fluid;

[0088] The inner tube 100A can accommodate the passage of a guide wire;

[0089] The positioning mechanism 200 is disposed between the inner tube and the outer tube, that is, the contact between the energized device and the fluid or body fluid is isolated to avoid the influence of even a small current.

[0090] Regarding the positioning mechanism, in addition to the fixed installation method (ie, through traditional fixing methods such as thermoplasticization, one-piece molding, bonding, and bundling), it can also be a detachable (ie, detachable) structure.

[0091] For example Figure 5 As shown, the sealed inner surface of the nasogastric intubation body has a deformable hook 122;

[0092] The positioning mechanism and the deformable hook have a ring 220 at the corresponding position, and the two are connected by hooking the ring 220. When the catheter is placed and the light-emitting element is no longer needed, the hook can be directly deformed by pulling with external force to release the ring.

[0093] Regarding the light emitting assembly, it includes light emitting elements of different light colors;

[0094] Light emitting elements of different light colors are respectively arranged at different positions of the nasogastric intubation tube body, either indicating a specific position or a specific length range.

[0095] In this embodiment, the specific position is the liquid outlet, such as Figure 6 As shown, a circle of light emitting components 201 of a different color from other colors is arranged around the liquid outlet to indicate the position of the liquid outlet, so as to more clearly know whether the liquid outlet has passed through the stomach and entered the intestine.

[0096] In this embodiment, it is suggested that the specific length range corresponds to different depths of entry into the pipe through specific light colors, such as: 0-10cm is blue, 10-15cm is red, 15-20cm is yellow, 20-25 is green and other different colors, or staggered colors, which can make it easier to judge the depth of entry of the pipe body and simply measure the internal environment.

[0097] In addition, the outer surface of the nasogastric intubation tube body may also be provided with scales for judging the total depth of the tube body.

[0098] Using this product, the specific method of catheterization under minimally invasive surgery is as follows: Figure 7 As shown in the figure, it can be found that the entire catheterization process can be monitored by inserting a miniature probe into the minimally invasive incision. Since the catheterization of this embodiment has the characteristic of luminescence, during the operation, the displacement of the luminous light spot can be used to guide the remote operator to adjust the position and direction.

[0099] Example 2

[0100] like Figure 8 As shown, this embodiment provides a digestive tract double-tube nasogastric intubation tube that can be positioned in minimally invasive surgery, comprising a nasogastric intubation tube body 100 and a positioning mechanism 200;

[0101] The above-mentioned nasogastric intubation tube body 100 comprises a nasogastric intubation tube 102 and a nasointestinal intubation tube 101;

[0102] The rear end of the nasogastric cannula 102 and the rear end of the nasointestinal cannula 101 (the rear end here refers to the end close to or located outside the nasal cavity after the cannula is placed, that is, the fluid input end) form a double-chamber shape at the rear end of the nasogastric cannula body, that is, the rear ends of the nasogastric cannula 102 and the nasointestinal cannula 101 are fully or partially connected. In actual operation, due to the need to connect different nutrient solutions, the general structure is a shape in which the mouth is slightly separated and the lower part is glued as shown in the figure;

[0103] The front end of the nasogastric cannula 101 constitutes the front end of the nasogastric cannula body (the front end here refers to the end located in the intestine after the cannula is placed, i.e., the intestinal fluid output end), which is a single tube shape;

[0104] The nasointestinal segment cannula 101 has an intestinal segment fluid input end 101A and an intestinal segment fluid output end 101B;

[0105] The intestinal fluid input end 101A is equipped with a connector 101A1 to connect to the intestinal fluid input device, so that when the catheter is placed, nutrients and other life-sustaining substances flow into the intestine from the liquid outlet.

[0106] The intestinal fluid output end 101B is a sealed end structure, and the proximal end of the sealed end is provided with an intestinal fluid outlet hole 101B1.

[0107] The nasogastric cannula 102 has a gastric fluid input end 102A and a gastric fluid output end 102B;

[0108] The stomach segment fluid input end 102A is provided with a connector 102A1 for connecting to the stomach segment fluid input device, so that when the catheter is placed, nutrients and other life-sustaining substances flow into the stomach from the fluid outlet.

[0109] The gastric segment fluid output end 102B is a sealed end structure, and the proximal end of the sealed end is provided with a gastric segment fluid outlet hole 102B1.

[0110] The positioning mechanism 200 runs through the entire length of the nasogastric intubation tube body and has a plurality of light-emitting components;

[0111] The light emitting components are arranged at specific intervals or positions to locate the entirety or part of the nasointestinal cannula 101 and to distinguish and locate the nasogastric cannula 102 .

[0112] The specific distance refers to the distance specified at the beginning of the design. For example, a light point is set every 5 cm, so that the depth of the tube can be determined by counting the number of light points passing through the observation port. Different colors are generally used to identify the gastric tube and intestinal tube segments, so that the two segments can be displayed differently.

[0113] The specific position can be the terminal end of the gastric tube segment (i.e., the deepest end of the stomach that can be reached after the tube body enters the body), the terminal end of the intestinal tube segment (i.e., the deepest end of the intestine that can be reached after the tube body enters the body), and the respective markings of the two liquid outlets (i.e., showing the positions of the liquid outlets, thereby ensuring that the liquid outlets are located in the target stomach or intestine). Regarding the arrangement of the luminous points at the positions of the liquid outlets, it can be in a circle around the liquid outlets, near the liquid outlets, or at the inner wall of the tube body opposite to the liquid outlets. Regarding the above.

[0114] There are several ways to fix the positioning mechanism 200 and the nasogastric intubation tube body 100 to each other:

[0115] Solution 1: Figure 8 As shown, the positioning mechanism 200 is in the shape of a light beam or linear LED, one end of which is fixed to the sealed end of the intestinal segment, and passes through the entire length of the nasogastric intubation body along the inner tube wall to reach the outlet end, wherein the light color of the light source 212 to the left to the outlet position is different from the light color between the light source 212 and the light source 222, thereby achieving the distinction between the two segments.

[0116] During the process of using the above-mentioned tube body for clinical trials, it was found that although the above-mentioned tube body can roughly determine the end points of the gastric tube segment and the intestinal tube segment, since there is a certain distance between the liquid outlet end of the gastric tube and the end of the gastric tube (and the distance also varies for different models), the above-mentioned solution can only ensure that the terminal enters the stomach, but cannot ensure that the liquid outlet of the gastric tube segment also enters the stomach. The same problem also occurs in the intestinal tube segment. In order to solve this problem, in another scheme of the present embodiment, the light source 211 and the light source 221 are set with different colors, so as to ensure the positioning of the liquid outlet during the catheterization process.

[0117] Option 2: Fig. 9 As shown, the solution different from Solution 1 is that independent light-emitting components are respectively provided in the gastric tube segment and the intestinal tube segment.

[0118] Option 3: Fig.10 As shown, the solution different from the above solution is that the nasogastric intubation tube body 100 has a pre-buried groove 101, which is C-shaped so that the positioning mechanism 200 implanted therein can be clamped;

[0119] The positioning mechanism 200 is in the shape of a light beam or a linear LED and is embedded in the embedded groove 101 by way of embedding.

[0120] When the positioning mechanism is buried, the lateral opening of the groove can be closed by heat shrinking, sealing, etc., or it can be left unclosed. Since the medical light beam that can be used in this device is a low-voltage and low-current component, and the catheterization time is extremely short, the power is cut off when the catheterization is completed, and there is no risk of burns to the human body.

[0121] As above, the pre-embedded method can be a single light-emitting component in solution one, or a dual independent light-emitting component in solution two.

[0122] Option 4: Fig.11 As shown, the nasointestinal tube section 101 is a double-layer structure, including an inner tube 1011 and an outer tube 1012 that are nested. The inner tube 1011 and the outer tube 1012 need to reserve the position of the liquid outlet hole, that is, the liquid outlet hole is connected to the inner tube and is not connected to the outer tube, so that the space between the inner and outer tubes is a space without any interaction with the fluid or body fluid;

[0123] The inner tube 1011 can accommodate a guide wire to pass through;

[0124] The positioning mechanism 200 is disposed between the inner tube and the outer tube. This solution isolates the contact between the energized device and the fluid or body fluid, thereby preventing even a tiny current from affecting the internal environment of the human body.

[0125] Similarly, when it is a case of dual independent light sources as shown in Solution 2, the gastric tube segment is also set to a double-layer structure.

[0126] Regarding the positioning mechanism, in addition to the fixed installation method (ie, through traditional fixing methods such as thermoplasticization, one-piece molding, bonding, and bundling), it can also be a detachable (ie, detachable) structure.

[0127] For example Fig.12 As shown, the inner surface of the sealed end (which can be a single intestinal tube segment or an intestinal tube + stomach tube segment under dual light sources) has a deformable hook 122;

[0128] The positioning mechanism and the deformable hook have a ring 220 at the corresponding position, and the two are connected by hooking the ring 220. When the catheter is placed and the light-emitting element is no longer needed, the hook can be directly deformed by pulling with external force to release the ring.

[0129] Regarding the light emitting assembly, it includes light emitting elements of different light colors;

[0130] Light-emitting elements of different colors are respectively disposed at different positions of the nasogastric intubation tube body (such as the difference between the stomach tube segment and the intestinal tube segment mentioned above), or represent specific positions, or represent specific length ranges.

[0131] In this embodiment, the layout structure of the light source at the specific position, that is, the liquid outlet hole, can be as follows: Fig.13 As shown, a circle of light emitting components 201 of a different color from other colors is arranged around the liquid outlet to indicate the position of the liquid outlet, so as to more clearly know whether the liquid outlet has passed through the stomach and entered the intestine or entered the stomach.

[0132] In this embodiment, it is suggested that the specific length range corresponds to different depths of entry into the pipe through specific light colors, such as: 0-10cm is blue, 10-15cm is red, 15-20cm is yellow, 20-25 is green and other different colors, or staggered colors, which can make it easier to judge the depth of entry of the pipe body and simply measure the internal environment.

[0133] In addition, the outer surface of the nasogastric intubation tube body may also be provided with scales for judging the total depth of the tube body.

[0134] Although the above description is centered on the embodiment, it is only an example and does not limit the present invention. It is clear to those skilled in the art that various modifications and applications not illustrated above can be made within the scope of the essential characteristics of the present embodiment. For example, each component specifically shown in the embodiment can be implemented after being modified. Moreover, various differences related to such modifications and applications should be interpreted as being included in the scope of the present invention as defined in the attached claims.

Claims

1. A digestive tract nasogastric intubation tube capable of achieving positioning in minimally invasive surgery, characterized in that: It includes a nasogastric intubation tube body and a positioning mechanism; The positioning mechanism runs through the entire length of the nasogastric intubation tube body and has a plurality of light-emitting components; the light-emitting components are arranged at specific intervals or positions to position the entire or part of the nasogastric intubation tube body.

2. The digestive tract nasogastric intubation tube capable of achieving positioning in minimally invasive surgery as claimed in claim 1, characterized in that: The nasogastric intubation tube body has a fluid input end and an output end; The input end is provided with a connector for connecting with a fluid input device; The output end is a sealed end structure, and the proximal end of the sealed end is provided with a liquid outlet.

3. The digestive tract nasogastric intubation tube capable of achieving positioning in minimally invasive surgery as claimed in claim 2, characterized in that: The light emitting component points to the position of the liquid outlet.

4. A digestive tract nasogastric intubation tube capable of achieving positioning in minimally invasive surgery as claimed in any one of claims 1 to 3, characterized in that: The nasogastric intubation tube body has a pre-buried groove; The positioning mechanism is embedded in the embedded groove by way of embedding; or The nasogastric intubation tube body is a double-layer structure, comprising an inner tube and an outer tube which are nested; The inner tube can accommodate the passage of a guide wire; The positioning mechanism is arranged between the inner tube and the outer tube.

5. The digestive tract nasogastric intubation tube capable of achieving positioning in minimally invasive surgery as claimed in claim 1, characterized in that: The nasogastric intubation tube body comprises a nasogastric intubation tube and a nasointestinal intubation tube; The rear ends of the nasogastric cannula and the nasointestinal cannula form a double-chamber shape at the rear end of the nasogastric cannula body; The front end of the nasogastric cannula is formed into a single tube shape at the front end of the nasogastric cannula body; The positioning mechanism runs through the entire length of the nasogastric intubation tube body and has a plurality of light-emitting components; the light-emitting components are arranged at specific intervals or positions to position the entire or part of the nasogastric intubation tube and to distinguish and position the nasogastric intubation tube.

6. The digestive tract nasogastric intubation tube capable of achieving positioning in minimally invasive surgery as claimed in claim 5, characterized in that: The nasointestinal segment cannula has an intestinal segment fluid input end and an intestinal segment fluid output end; The intestinal fluid input end is provided with a connector for connecting to the intestinal fluid input device; The intestinal fluid output end is a sealed end structure, and the proximal end of the sealed end has an intestinal fluid outlet hole; The nasogastric cannula has a gastric fluid input end and a gastric fluid output end; The gastric segment fluid input end is provided with a connector for connecting to the gastric segment fluid input device; The gastric segment fluid output end is a sealed end structure, and the proximal end of the sealed end is provided with a gastric segment fluid outlet hole.

7. The digestive tract nasogastric intubation tube capable of achieving positioning in minimally invasive surgery as claimed in claim 6, characterized in that: The light-emitting component points to the position of the fluid outlet hole of the intestinal segment; and The light emitting component also points to the location of the fluid outlet of the stomach segment and makes an indication that is different from the nasointestinal segment cannula or the intestinal segment fluid outlet.

8. A digestive tract nasogastric intubation tube capable of achieving positioning in minimally invasive surgery as claimed in any one of claims 5 to 7, characterized in that: The nasogastric intubation tube body has a pre-buried groove; The positioning mechanism is embedded in the embedded groove by way of embedding; or The nasogastric intubation tube body is a double-layer structure, comprising an inner tube and an outer tube which are nested; The positioning mechanism is arranged between the inner tube and the outer tube.

9. The digestive tract nasogastric intubation tube capable of achieving positioning in minimally invasive surgery as claimed in claim 1, characterized in that: The positioning mechanism is detachably connected to the nasogastric intubation tube body.

10. The digestive tract nasogastric intubation tube capable of achieving positioning in minimally invasive surgery as claimed in claim 1, characterized in that: The light-emitting assembly comprises light-emitting elements of different light colors; The light emitting elements of different light colors are respectively arranged at different positions of the nasogastric intubation tube body, or represent specific positions, or represent specific length ranges.

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