CN114272141B - Double-cavity visual gastrointestinal tube and double-cavity injection device with same - Google Patents

Abstract

The application discloses a double-cavity visual gastrointestinal tube and a double-cavity injection device with the same, comprising a main tube, an intestinal tube, a guide wire and a camera, wherein the main tube is provided with a proximal end, a distal end, a nasogastric channel and a nasogastric channel which penetrate from the distal end to the proximal end, and the proximal end is provided with a first liquid outlet communicated with the nasogastric channel and an interface part communicated with the nasogastric channel. The intestinal tube is formed into an elastic spiral structure, the intestinal tube is provided with a connecting end and a liquid outlet end, the connecting end is connected with the interface part, and the liquid outlet end is provided with a second liquid outlet for liquid to flow out; one end of the guide wire sequentially passes through the nasal and intestinal channel and the intestinal canal and then passes out of the second liquid outlet, and the other end of the guide wire is positioned outside the distal end; the camera is arranged at one end of the guide wire, and the other end of the guide wire is provided with a data connector connected with the camera through signals. According to the double-cavity visual gastrointestinal tube provided by the application, the medicine can be respectively administered through the nasogastric channel and the nasogastric channel, and one tube can meet different requirements during treatment. In addition, the problem of blockage of the tube in the intestinal cavity is effectively prevented.

Description

Double-cavity visual gastrointestinal tube and double-cavity injection device with same

Technical Field

The application relates to a medical gastrointestinal tube, in particular to a double-cavity visual gastrointestinal tube and a double-cavity injection device with the same.

Background

The gastrointestinal tube is a medical tube adapted for transgastric nutrient supply and gastrointestinal decompression. The gastrointestinal tube in the related art is mostly a flexible tube, and holes are formed in the corresponding region of the stomach and the corresponding region of the intestinal tract, so that the gastrointestinal tube with the structure is inconvenient for separate administration of the stomach and the intestinal tract. In addition, the gastrointestinal tube is a straight tube, and when the gastrointestinal tube stretches into the field cavity, the lower end of the gastrointestinal tube is easy to be embedded into tissues, so that the gastrointestinal tube is blocked, and the subsequent treatment is greatly troublesome due to the blocking of the gastrointestinal tube, and even the gastrointestinal tube needs to be replaced. In addition, in the visual process, the state in the intestinal tract is difficult to visually obtain, and the tube is inconvenient to put.

Disclosure of Invention

The present application aims to solve at least one of the technical problems in the related art to some extent. Therefore, the application aims to provide a double-cavity visual gastrointestinal tube and a double-cavity injection device with the same.

To achieve the above object, in one aspect, a dual lumen visual gastrointestinal tube according to an embodiment of the present application comprises:

the main pipe is provided with a proximal end, a distal end, a nasogastric channel and a nasogastric channel, wherein the nasogastric channel and the nasogastric channel penetrate from the distal end to the proximal end, and the proximal end is provided with a first liquid outlet communicated with the nasogastric channel and an interface part communicated with the nasogastric channel;

the intestinal tube is formed into an elastic spiral structure, the intestinal tube is provided with a connecting end and a liquid outlet end, the connecting end is connected with the interface part so that the intestinal tube is communicated with the nasal intestinal channel, and the liquid outlet end is provided with a second liquid outlet for liquid to flow out;

one end of the guide wire sequentially passes through the nose-intestine channel and the intestine and then passes out of the second liquid outlet, and the other end of the guide wire is positioned outside the distal end;

the camera is arranged at one end of the guide wire, and the other end of the guide wire is provided with a data connector in signal connection with the camera.

According to the double-cavity visual gastrointestinal tube provided by the embodiment of the application, on one hand, the main tube is provided with the nasogastric channel and the nasogastric channel, and can be respectively administered through the nasogastric channel and the nasogastric channel, and one tube meets different requirements in treatment. On the other hand, connect one section intestines pipe at the proximal end of being responsible for, this intestines pipe and nose intestines passageway to construct to have elastic heliciform structure, so, after placing intestines pipe in the intestinal, intestines pipe keeps the heliciform state to support in the intestinal cavity under the elastic action, and then can make the liquid end of intestines pipe unsettled in the intestinal cavity, the tissue contact with the intestinal cavity has effectively prevented the problem of the stifled pipe of intestinal cavity holding, ensures that the treatment is more smooth reliable. On the other hand, through the camera that sets up on the seal wire, can utilize the camera to gather internal image data, conveniently put the pipe, also can carry out the real-time supervision in the intestinal to the treatment, be favorable to the accurate operation and the accurate control in the treatment.

According to one embodiment of the application, the camera is provided with at least one LED cold light source for providing illumination of the intestinal environment.

According to one embodiment of the application, the guide wire forces the intestine to change from helical to substantially linear as the guide wire penetrates into the intestine.

According to one embodiment of the application, the main tube is circular in cross section and a diaphragm is formed in the main tube to separate the nasogastric and nasogastric passages.

According to one embodiment of the application, the intestinal tube is formed in a conical spiral structure tapering from the connection end towards the discharge end.

According to one embodiment of the application, the liquid outlet end is close to the central line of the main pipe, and the plane of the second liquid outlet is parallel to the central line.

According to one embodiment of the application, the intestinal tube comprises an inner layer, an outer layer and an intermediate layer, wherein the inner layer and the outer layer are made of medical plastic materials, and the intermediate layer is wrapped by an elastic wire mesh on the outer surface of the inner layer.

According to one embodiment of the application, the outer peripheral wall of the liquid outlet end is sleeved with a counterweight sleeve for increasing the weight of the liquid outlet end.

According to one embodiment of the application, the nasal cavity device further comprises a Y-shaped connector, one end of the Y-shaped connector is connected to the distal end of the main pipe, the other end of the Y-shaped structure is provided with a first connector and a second connector, the first connector is communicated with the nasal stomach channel, and the second connector is communicated with the nasal intestinal channel.

In another aspect, a dual-chamber injection device according to an embodiment of the present application includes:

a dual lumen visual gastrointestinal tube as described above;

and the injector is suitable for being connected with the distal end of the main pipe so as to inject or draw liquid into the nasogastric channel or the nasogastric channel.

According to the double-cavity injection device provided by the embodiment of the application, the double-cavity visual gastrointestinal tube is provided, so that the double-cavity visual gastrointestinal tube can be used for respectively administering medicines through a nasogastric channel and a nasogastric channel, and one tube can meet different requirements during treatment. In addition, after the intestinal canal is placed in the intestinal canal, the intestinal canal is supported in the intestinal canal cavity in a spiral state under the elastic action, so that the liquid outlet end of the intestinal canal is suspended in the intestinal canal cavity and is not contacted with tissues of the intestinal canal cavity, the problem of canal blockage in the intestinal canal cavity is effectively prevented, and the smooth and reliable treatment is ensured. Furthermore, the tube placement is convenient, the real-time monitoring in the intestinal tract can be performed in the treatment process, and the accurate operation and the accurate control in the treatment process are facilitated.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a dual lumen visual gastrointestinal tube according to an embodiment of the present application;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a front view of a dual lumen visible gastrointestinal tube in accordance with an embodiment of the present application;

FIG. 4 is a cross-sectional view taken at position A-A of FIG. 3

Fig. 5 is a schematic view of another embodiment of a dual lumen visual gastrointestinal tube according to the present application.

Reference numerals:

10. a main pipe;

d101, proximal end;

d102, distal end;

h101, naso-intestinal tract;

h102, nasogastric passageway;

h1021, the first liquid outlet;

101. an interface part;

20. an intestinal canal;

201. a connection end;

202. a liquid outlet end;

h202, a second liquid outlet;

30. a Y-type joint;

301. a first joint;

302. a second joint;

303. a first sealing cover;

304. a second sealing cover;

40. a guide wire;

41. a camera;

411. an LED cold light source;

50. a counterweight sleeve.

The achievement of the objects, functional features and advantages of the present application will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below are exemplary and intended to illustrate the present application and should not be construed as limiting the application, and all other embodiments, based on the embodiments of the present application, which may be obtained by persons of ordinary skill in the art without inventive effort, are within the scope of the present application.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The dual lumen visual gastrointestinal tube 20 and the dual lumen injection device having the same according to the embodiment of the present application will be described in detail with reference to the accompanying drawings.

Referring to fig. 1 to 4, a dual-lumen visual gastrointestinal tube 20 according to an embodiment of the present application includes a main tube 10, a gastrointestinal tube 20, a guide wire 40, and a camera 41.

Specifically, the main tube 10 may be made of medical soft plastic material, such as Polyurethane (PU) or thermoplastic polyurethane elastomer (TPU), and the outer diameter of the main tube 10 may be designed according to clinical adaptability, for example, the outer diameter of the main tube 10 may be 6.6mm. The main tube 10 has a proximal end D101, a distal end D102, and a nasogastric passageway H102 and a nasogastric passageway H101 penetrating from the distal end D102 to the proximal end D101, and the proximal end D101 has a first liquid outlet H1021 communicating with the nasogastric passageway H102 and an interface portion 101 communicating with the nasogastric passageway H101. Proximal end D101 refers to the end that is inserted into the human body during use, and distal end D102 refers to the end that is left outside the human body during use.

The intestinal tube 20 is formed into a spiral structure with elasticity, the intestinal tube 20 has a connection end 201 and a liquid outlet end 202, the connection end 201 is connected with the interface portion 101 so that the intestinal tube 20 is communicated with the nasal intestinal channel H101, and the liquid outlet end 202 has a second liquid outlet H202 for liquid outflow.

That is, the bowel tube 20 is connected to the proximal end D101 of the main tube 10 and communicates with the naso-intestinal channel H101 of the main tube 10, and the bowel tube 20 is of a spiral structure having elasticity, and when no external force is interposed, the bowel tube 20 maintains the spiral structure, and when the external force is withdrawn after being straightened by the external force, the bowel tube 20 can recover the spiral structure.

One end of the guide wire 40 sequentially passes through the nasal and intestinal channel and the intestinal canal and then passes out of the second liquid outlet, and the other end of the guide wire 40 is positioned outside the distal end. The camera 41 is arranged at the one end of the guide wire 40, and the other end of the guide wire 40 is provided with a data connector in signal connection with the camera 41, and the data connector can be connected to monitoring equipment, so that video images can be displayed through the monitoring equipment.

That is, the guide wire 40 can be threaded through the nose-intestine channel of the main tube and then through the intestine tube to exit through the second outlet of the outlet end of the intestine tube. In the transnasal catheterization process, the guide wire 40 can be retracted into the liquid outlet end of the intestinal canal first, and then the transnasal catheterization is started, and the intestinal canal is conveniently penetrated into the stomach by utilizing the guiding function of the guide wire 40 due to the relatively large hardness of the guide wire 40. In addition, set up camera 41 in the one end that wire 40 stretched into in the intestinal, camera 41 can be followed the catheterization process and get into the internal, can acquire internal image data with camera 41 to be convenient for more smooth and quick catheterization. In addition, the camera 41 may be used to acquire image data in the intestinal tract, so as to monitor the state in the intestinal tract.

In using the dual lumen visual gastrointestinal tube 20 for feeding, an injection device is connected to the distal end D102 of the main tube 10, and the injection device can be selectively connected to the nasogastric passageway H102 or nasogastric passageway H101 to feed nutrients to the stomach or intestines, for example, for patients with less severe symptoms, through the stomach feeding, the nutrients can be fed to the stomach through the first fluid outlet H1021, and for severe patients such as coma, the nutrients can be fed to the intestines through the second fluid outlet H202 of the intestinal tube 20, and so on. When the double-cavity visible gastrointestinal tube 20 is used for gastrointestinal decompression, the suction device is selectively connected with the nasogastric channel H102 or the nasogastric channel H101, and then the stomach or the intestinal tract is sucked, so that internal gas or liquid is pumped out, and decompression operation of the stomach or the intestinal tract is realized.

It should be noted that, in clinic, when the tube is placed in the intestinal canal, the liquid outlet end 202 of the tube is easily contacted with the wall of the intestinal cavity or other tissues under the action of gravity, and is easily embedded into the tissues even after the intestinal canal is peristaltic, so that the tube is blocked, once the tube is blocked, the subsequent treatment is extremely inconvenient, for example, the tube is difficult to dredge, the tube needs to be replaced, and the like, which also causes great pain to the patient.

In the present application, the inventor found through research that the intestinal tube 20 is constructed to have an elastic spiral structure, and after the intestinal tube is placed in the intestinal tract, the spiral structure is supported on the wall of the intestinal cavity in a radially outward expanding manner under the elastic action, so that the liquid outlet tube of the intestinal tube 20 is suspended in the intestinal cavity and is not contacted with other tissues, and the problem that the liquid outlet end 202 is easy to block can be prevented.

According to the double-cavity visual gastrointestinal tube 20 provided by the embodiment of the application, the main tube 10 is provided with the nasogastric channel H102 and the nasogastric channel H101, and can be respectively administered through the nasogastric channel H102 and the nasogastric channel H101, and one tube meets different requirements during treatment. In addition, connect a section of intestines tube 20 at the proximal end D101 of being responsible for 10, this intestines tube 20 and nose intestines passageway H101 to be constructed to have elastic heliciform structure, so, after placing intestines tube 20 in the intestines, intestines tube 20 keeps the heliciform state to support in the intestines cavity under the elastic action, and then can make the liquid outlet end 202 of intestines tube 20 unsettled in the intestines cavity, not contact with the tissue of intestines cavity, effectively prevented the problem of the stifled pipe of intestines cavity content, ensured that the treatment is more smooth reliable.

Referring to fig. 1, in an example of the present application, the camera 41 is provided with at least one LED cold light source 411 for providing illumination of the intestinal environment, so that during the tube placement process, the in-vivo environment can be illuminated by the light provided by the LED cold light source 411 on the camera 41, thereby ensuring that the camera 41 can collect clearer image data, facilitating visual guiding and tube placement, and visual monitoring of the intestinal canal.

In one embodiment of the application, the guidewire 40 forces the intestinal tube from a spiral to a generally straight shape as the guidewire 40 penetrates into the intestinal tube. That is, the guide wire 40 has a relatively large hardness, and after penetrating into the intestinal canal by the guide wire 40, the intestinal canal can be spirally changed into a substantially straight shape and is sleeved on the guide wire 40, so that the straight shape is more convenient for guiding the placement of the canal. In addition, after the intestinal tube 20 is placed in the intestinal tract, the intestinal tube 20 can be restored to a spiral state under the elastic action to be supported in the intestinal lumen after the guide wire 40 is pulled out.

In one example of the present application, the main tube 10 has a circular cross section, and a diaphragm is formed in the main tube 10 to separate the nasogastric channel H102 and the nasogastric channel H101, and preferably, the diaphragm and the main tube 10 are integrally formed, so that the main tube 10 is formed to be easily manufactured and the nasogastric channel H102 and the nasogastric channel H101 are independent from each other.

In one embodiment of the present application, the intestinal tube 20 is formed in a conical spiral structure that tapers from the connection end 201 toward the discharge end 202.

In this embodiment, the intestinal tube 20 forms a conical spiral structure that gradually decreases from the connection end 201 toward the liquid outlet end 202, that is, a structure with a large upper portion and a small lower portion, so that a large space can be formed below the intestinal tube 20 when the intestinal tube is in the intestinal tract, and the small upper portion and the small lower portion of the intestinal tube 20 can be far away from surrounding tissues when the intestinal tube is in the space, thereby ensuring that the liquid outlet end 202 of the intestinal tube 20 is less likely to contact with the surrounding tissues, and further improving the anti-blocking effect.

More advantageously, the liquid outlet end 202 is close to the center line of the main pipe 10, and the plane of the second liquid outlet H202 is parallel to the center line, that is, the plane extends toward the center line when the liquid outlet end 202 is located, so that the second liquid outlet H202 is close to the center line, and thus, the second liquid outlet H202 can be far away from the surrounding tissue as far as possible, and the structure of the surrounding tissue can be avoided, and the better anti-blocking effect is improved.

Illustratively, the ratio of the cross-sectional areas of nasogastric channel H102 and nasogastric channel H101 is between 1:1 and 5:4, with the ratio of the main tube 10 being sufficient for clinical administration.

In one embodiment of the present application, the bowel tube 20 includes an inner layer, an outer layer of medical plastic material, such as PU material, TPU material, etc., and an intermediate layer of elastic wire mesh, such as stainless steel wire mesh, wrapped around the outer surface of the inner layer.

In this embodiment, the elastic steel wire mesh is adopted in the middle layer of the intestinal tube 20, so that the intestinal tube 20 has better elasticity, and after being placed in the intestinal tract, the intestinal tube 20 can be elastically supported in the intestinal cavity and maintain a spiral structure, so that the liquid outlet end 202 is reliably suspended in the intestinal cavity, and the structure relates to the effectiveness and reliability of supporting the intestinal tube 20 in the intestinal tract.

Referring to fig. 5, in one embodiment of the present application, a weight sleeve 50 is sleeved on the outer peripheral wall of the liquid outlet end to increase the weight of the liquid outlet end. Preferably, the weight sleeve 50 is made of metal, such as stainless steel, titanium alloy, etc.

Because the intestinal canal is spiral when no other external force is interposed, in the intestinal cavity, the spiral intestinal canal is supported in the intestinal cavity, at this time, the liquid outlet end can not sink due to the fact that the liquid outlet end is kept in a spiral shape, the height of the second liquid outlet is higher, and then liquid outlet of the second liquid outlet is not smooth. Through set up counter weight cover 50 at the play liquid end, utilize the gravity effect of counter weight cover 50, can make the play liquid end subside relatively, form the decurrent state of slope, so, second liquid outlet height is lower, and then makes second liquid outlet discharge nutrient solution more smooth.

In one embodiment of the present application, the device further comprises a Y-shaped connector 30, one end of the Y-shaped connector 30 is connected to the distal end D102 of the main tube 10, the other end of the Y-shaped structure has a first connector 301 and a second connector 302, the first connector 301 is in communication with the nasogastric passageway H102, and the second connector 302 is in communication with the nasogastric passageway H101.

In this way, in use, the first connector 301 may be used to connect to an injection device or a suction device, while the second connector 302 may also be used to connect to an injection device or a suction device, facilitating connection to the injection device or suction device in use.

In one embodiment of the present application, a first sealing cover 303 adapted to seal the first connector 301 is connected to the first connector 301, a second sealing cover 304 adapted to seal the second connector 302 is connected to the second connector 302, the first sealing cover 303 and the second sealing cover are both made of soft rubber materials, and cross-shaped cuts are formed on the first sealing cover 303 and the second sealing cover 304 for plugging and unplugging the syringe.

In this embodiment, the first joint 301 may be sealed by the first sealing cover 303, and the second joint 302 may be sealed by the second sealing cover 304, so that the first joint 301 and the second joint 302 may be sealed by the first sealing cover 303 and the second sealing cover 304 when nutrition supply or gastrointestinal decompression is not required, so as to prevent the external virus and other harmful substances from entering the body to cause infection and other problems. When in use, the injector can be directly inserted on the cross incision, so that the injector is convenient to insert and pull out and convenient to use.

A dual-lumen injection device according to an embodiment of the present application includes a syringe and a dual-lumen visual gastrointestinal tube 20 as described in the above embodiments. A syringe is adapted to be connected to the distal end D102 of the main tube 10 for injecting or extracting fluid into the nasogastric passageway H102 or the nasogastric passageway H101.

According to the dual-cavity injection device provided by the embodiment of the application, the dual-cavity visual gastrointestinal tube 20 is provided, so that the dual-cavity visual gastrointestinal tube can be used for respectively administering medicines through the nasogastric channel H102 and the nasogastric channel H101, and one tube can meet different requirements during treatment. In addition, after the intestinal canal 20 is placed in the intestinal canal, the intestinal canal 20 is supported in the intestinal canal cavity in a spiral state under the elastic action, so that the liquid outlet end 202 of the intestinal canal 20 is suspended in the intestinal canal cavity and is not contacted with tissues in the intestinal canal cavity, the problem of canal blockage in the intestinal canal cavity is effectively prevented, and the smooth and reliable treatment is ensured.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the scope of the application, and all equivalent structural changes made by the description of the present application and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the application.

Claims (7)

1. A dual lumen visual gastrointestinal tube comprising:

the main pipe is provided with a proximal end, a distal end, a nasogastric channel and a nasogastric channel, wherein the nasogastric channel and the nasogastric channel penetrate from the distal end to the proximal end, and the proximal end is provided with a first liquid outlet communicated with the nasogastric channel and an interface part communicated with the nasogastric channel;

the intestinal tube is formed into an elastic spiral structure, the intestinal tube is provided with a connecting end and a liquid outlet end, the connecting end is connected with the interface part so that the intestinal tube is communicated with the nasal intestinal channel, and the liquid outlet end is provided with a second liquid outlet for liquid to flow out;

one end of the guide wire sequentially passes through the nose-intestine channel and the intestine and then passes out of the second liquid outlet, and the other end of the guide wire is positioned outside the distal end;

the camera is arranged at one end of the guide wire, and the other end of the guide wire is provided with a data connector in signal connection with the camera;

the intestinal canal is formed into a conical spiral structure which gradually reduces from the connecting end to the liquid outlet end;

the liquid outlet end is close to the central line of the main pipe, and the plane where the second liquid outlet is located is parallel to the central line;

the intestinal canal comprises an inner layer, an outer layer and an intermediate layer, wherein the inner layer and the outer layer are made of medical plastic materials, and the intermediate layer is wrapped on an elastic wire mesh on the outer surface of the inner layer.

2. The dual lumen visual gastrointestinal tube of claim 1, wherein the camera has at least one LED cold light source thereon for providing ambient illumination of the intestinal tract.

3. The dual lumen visual gastrointestinal tube of claim 1, wherein the guidewire forces the intestinal tube from a helical shape to a generally linear shape as the guidewire penetrates into the intestinal tube.

4. The dual lumen visual gastrointestinal tube of claim 1, wherein the main tube is circular in cross-section and a septum is formed within the main tube to separate the nasogastric and nasogastric passages.

5. The dual lumen visual gastrointestinal tube of claim 1, wherein the outer peripheral wall of the dispensing end is sleeved with a weight sleeve for increasing the weight of the dispensing end.

6. The dual lumen visual gastrointestinal tube of claim 1, further comprising a Y-connector, one end of the Y-connector being connected to a distal end of the main tube, the other end of the Y-connector having a first connector in communication with the nasogastric passageway and a second connector in communication with the nasogastric passageway.

7. A dual chamber injection device comprising:

the dual lumen visual gastrointestinal tube of any one of claims 1 to 6;

and the injector is suitable for being connected with the distal end of the main pipe so as to inject or draw liquid into the nasogastric channel or the nasogastric channel.