Disposable gastroscope synchronous gastrointestinal tube imbedding device with rapid separation mechanism

Abstract

The invention relates to the technical field of medical endoscope auxiliary instruments, in particular to a disposable gastroscope synchronous gastrointestinal tube implantation device with a rapid separation mechanism. The gastroscope comprises a gastroscope body and a gastrointestinal tube body, the gastroscope body is connected with a handheld operation portion in the gastroscope and used for being inserted into the body of a patient, and the gastrointestinal tube body and the gastroscope body are coaxially arranged; the endoscope body is of a split type structure and comprises a fixed tube communicated with the inside and the outside of a patient, a rotating tube used for being inserted into the stomach and intestine of the patient and a camera for displaying images in the stomach and intestine in real time. In the process that the gastrointestinal tube body is inserted into the stomach and intestine of a patient along with the rotating tube, if the camera observes that the gastrointestinal tube body to be separated right faces the swelling position in advance, normal saline introduced into the fixed tube is pressurized through the endoscope injection tube and is injected to the sunken side of a blade at a certain inclination angle. The blades are deflected by a certain angle by energy instantly generated when the water column impacts the blades, and the grooves which originally directly face the swelling position of the small intestine cavity are rotated away from the position.

Description

Technical Field

[0001] This invention relates to the field of medical endoscopic auxiliary device technology, and more specifically, to a disposable gastroscopy-assisted simultaneous gastrointestinal tube insertion device with a rapid separation mechanism. Background Technology

[0002] Critically ill, comatose, or dysphagic patients lack the ability to swallow independently, so an artificial channel needs to be established inside their gastrointestinal tract for nutritional feeding or gastrointestinal decompression, and the real-time observation function of the endoscope is used to quickly locate the affected area.

[0003] Currently, the most common clinical practice involves inserting, observing, and withdrawing the endoscope, followed by manual or guidewire-guided insertion of the gastrointestinal tube. A few hospitals with more advanced medical techniques use endoscopic clamping and traction or guidewire exchange to create artificial feeding or decompression pathways. All of these methods require the patient's throat to undergo at least two instrument insertions and removals, increasing the risk of throat injury.

[0004] In view of this, we propose a disposable gastroscopy-guided simultaneous gastrointestinal tube placement device with a rapid separation mechanism to improve the shortcomings of the prior art. Summary of the Invention

[0005] This invention provides a disposable gastroscopy-guided simultaneous gastrointestinal tube insertion device with a rapid separation mechanism, which solves the problem that in current medical practice, when constructing an artificial feeding or decompression channel inside a patient's gastrointestinal tract, the patient's throat area needs to undergo at least two instrument insertions and removals.

[0006] To achieve the above objectives, the disposable gastroscopy-synchronized gastrointestinal tube insertion device with a rapid separation mechanism includes a scope body and a gastrointestinal tube body. The scope body is connected to the handheld operating part of the gastroscope and is used for insertion into the patient's body. The gastrointestinal tube body is coaxially arranged with the scope body. By constructing a coaxial combination between the scope body and the gastrointestinal tube body, the gastrointestinal tube body, which serves the purpose of nutrition feeding or gastrointestinal decompression, can be inserted into the patient's gastrointestinal tract synchronously with the scope body. Furthermore, during the positioning of the gastrointestinal tube body to the target area, it can be precisely guided by the real-time imaging function of the scope body.

[0007] The endoscope has a split structure, including a fixed tube connecting the inside and outside of the patient's body, a rotating tube for inserting into the patient's gastrointestinal tract, and a camera for displaying real-time images of the inside of the gastrointestinal tract. A groove is provided on one side of the rotating tube, and the part of the gastrointestinal tube body inserted into the patient's gastrointestinal tract is located in the groove. Multiple buckles for fixing the gastrointestinal tube body are provided on the inner side of the groove.

[0008] A rotating component is integrally provided on the inner wall of the end of the rotating tube near the fixed tube. Multiple endoscopic jet tubes are provided on the inner wall of the end of the fixed tube near the rotating tube. The endoscopic jet tubes are used to spray liquid to drive the rotating component to rotate at a preset angle α so that the groove is no longer directly facing the swollen part of the patient's small intestine wall. The angle between the liquid jet ejected from the endoscope's jet tube and the cross-sectional plane of the fixed tube is an acute angle β.

[0009] In the above technical solution, the fixed tube and the rotating tube are made of PTFE, and their inner diameters are both ≥10mm, their wall thicknesses are 0.05mm, and their total length is 170cm.

[0010] The front end of the camera is rounded and coated with a super-slippery hydrophilic coating with a friction coefficient of ≤0.05.

[0011] In another technical solution, the side wall of the fixed tube is provided with an inlet pipe that communicates with the outside. The fixed tube has multiple branch pipes at one end near the connection with the rotating tube. One end of each branch pipe is connected to the inlet pipe, and the other end of each branch pipe is connected to the interior of the fixed tube.

[0012] This allows for the introduction of external saline solution into the fixed tube for rinsing and moistening the affected area, and for the operation of turning the groove.

[0013] Each of the branch pipes is connected to an endoscope jet pipe at its opening inside the fixed pipe. The endoscope jet pipe is used to pressurize external liquid and spray it into the fixed pipe.

[0014] The rotating component is driven to rotate by pressurized liquid, which in turn causes the rotating tube, which is integrally connected to the rotating component, to change direction. Ultimately, when the gastrointestinal tube body is disengaged from the groove, the groove is no longer directly facing the swollen area of ​​the small intestinal wall.

[0015] The multiple endoscopic jet tubes are arranged in a ring array about the axis of the fixation tube.

[0016] If the water jet from the endoscope nozzle is perpendicular to the slope of the fixed tube's cross-section, the water jet cannot provide the driving force for the rotation of the rotating assembly. If the endoscope nozzle sprays water horizontally, although it can drive the rotating assembly to rotate, this would place the endoscope nozzle in the path of the rotating assembly's rotation, thus obstructing its rotation. Therefore, by positioning the nozzle of the endoscope nozzle diagonally above the rotating assembly, the water jet can provide the driving force for the rotating assembly's rotation without hindering the rotation of the endoscope nozzle.

[0017] In the above scheme, the inner wall of the fixed tube near the interface with the rotating tube is provided with a groove, and multiple drainage holes are provided on the side of the groove away from the inner cavity of the fixed tube.

[0018] The rotating assembly includes a rotating shaft and a fixed base. The fixed base is integrally formed with the inner wall of the rotating tube. The rotating shaft is fixedly connected to the fixed base and extends into the interior of the fixed tube. Multiple blades are radially fixedly connected to the rotating shaft.

[0019] The longitudinal section of the blade is fan-shaped, and the arc angle of the fan is between 180° and 360°, so that the blade can withstand the impact force of the water jet ejected from the endoscope jet tube and catch part of the liquid. The end of the blade away from the rotating shaft extends into the groove.

[0020] The centrifugal force generated by the rotation of the blades propels the collected saline solution from the drain hole into the small intestine. Since the gastrointestinal tube body, located near the swollen area of ​​the small intestine wall, is part of the tube within the groove, meaning the small intestine wall near the drain hole is intact, the tube body stops extending into the affected area as it needs to perform medical procedures there. After flowing out of the drain hole, the saline solution flows down the small intestine wall to moisten the swollen area, and is then suctioned out at the end of the rotating tube.

[0021] The portion of the gastrointestinal tube body that transitions from the fixed tube to the groove is in a non-tight state, meaning that the projected length of the gastrointestinal tube body on this path is greater than the length of the line connecting the fixed tube to the groove on the rotating tube.

[0022] Based on the above description, the beneficial effects of the present invention compared with the prior art are as follows: 1. The gastrointestinal tube body can be inserted in one insertion, shortening the average operation time; no guide wire traction or X-ray confirmation of position is required, reducing the slippage rate; real-time observation through the camera on the endoscope ensures that the tip passes through the pylorus and reaches the small intestine, improving the positioning accuracy; the gastrointestinal tube is retained after the endoscope is removed, allowing for continued nutrition injection or decompression of the small intestinal lumen.

[0023] 2. During the insertion of the gastrointestinal tube into the patient's gastrointestinal tract along with the rotating tube, if the camera observes in advance that the gastrointestinal tube is facing the swollen area, a column of physiological saline is sprayed at a certain angle through the endoscopic jet tube onto the concave side of the blade. The energy generated by the water jet hitting the blade at that moment causes the blade to deflect at a certain angle, moving the groove that was originally facing the swollen area of ​​the small intestine away from that position, thus misaligning the gastrointestinal tube with the swollen area of ​​the small intestine wall. Attached Figure Description

[0024] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a perspective view of the overall structure of the present invention; Figure 2 This is a diagram showing the positional relationship between the endoscope body and the gastrointestinal tube body of the present invention; Figure 3 This is a diagram showing the position of the rotating tube of the present invention after it is inserted into the small intestine. Figure 4 This is a partial cross-sectional perspective view of the present invention; Figure 5 This is a schematic diagram illustrating the principle of the present invention: the liquid flows through a fixed tube to the endoscope injection tube and is then ejected. Figure 6 This is a cross-sectional front view of the fixed tube and the rotating tube of the present invention; Figure 7 This is a three-dimensional structural diagram of the rotating assembly of the present invention; Figure 8 This is a diagram showing the state of the gastrointestinal tube body of the present invention at the corner of the fixed tube; Figure 9 This is a schematic diagram illustrating the principle of how the liquid ejected from the endoscope jet tube drives the rotating tube to rotate according to the present invention.

[0025] The meanings of the labels in the diagram are as follows: 100. Operating unit; 110. Endoscope body; 111. Fixing tube; 112. Rotating tube; 113. Camera; 114. Groove; 115. Buckle; 120. Gastrointestinal tube body; 130. Inlet tube; 131. Branch tube; 140. Slide groove; 141. Drain hole; 200. Endoscopic jet tube; 300. Rotating assembly; 310. Rotating shaft; 311. Blade; 320. Fixture. Detailed Implementation

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Example 1: Addressing the issue of potential throat injury during repeated instrument insertions and removals when constructing artificial feeding or decompression channels within the patient's gastrointestinal tract, this example provides a disposable endoscopic device for simultaneous gastrointestinal tube placement with a rapid separation mechanism. Figure 1As shown, the insertion device includes a scope body 110 and a gastrointestinal tube body 120. The scope body 110 is connected to the handheld operating part 100 in the gastroscope and is used to insert into the patient's body. The gastrointestinal tube body 120 is coaxially arranged with the scope body 110. By constructing a coaxial combination between the scope body 110 and the gastrointestinal tube body 120, the gastrointestinal tube body 120, which plays a role in nutrition feeding or gastrointestinal decompression, can be inserted into the patient's gastrointestinal tract synchronously with the scope body 110. Furthermore, the gastrointestinal tube body 120 can be precisely guided by the real-time imaging function of the scope body 110 during the positioning process to the target area.

[0028] To facilitate understanding of the above content, Figure 2 The lieutenant general was originally located The gastrointestinal tube body 120 was moved to... The demonstration will be held after the point, revealing how the endoscope body 110 and the gastrointestinal tube body 120 are specifically coaxially arranged.

[0029] The endoscope body 110 has a split structure, including a fixed tube 111 that connects the inside and outside of the patient's body, a rotating tube 112 for insertion into the patient's gastrointestinal tract, and a camera 113 for real-time display of images inside the gastrointestinal tract. A groove 114 is provided on one side of the rotating tube 112, and the part of the gastrointestinal tube body 120 inserted into the patient's gastrointestinal tract is located in the groove 114. Multiple buckles 115 for fixing the gastrointestinal tube body 120 are provided inside the groove 114.

[0030] Then combine Figure 4 As shown, in actual use, the fixed tube 111 Point and rotating tube 112 The points coincide; in this diagram, for ease of showing its structure, the points that were originally located... The fixed tube 111 at point 111 is first moved to the position of point 111. Point, then translate to Point: Rotating tube 112 is rotatably connected to fixed tube 111; A rotating assembly 300 is integrally provided on the inner wall of the rotating tube 112 near the fixed tube 111. A plurality of endoscopic jet tubes 200 are provided on the inner wall of the fixed tube 111 near the rotating tube 112. The endoscopic jet tubes 200 are used to spray liquid to drive the rotating assembly 300 to rotate at a preset angle α so that the groove 114 is no longer directly facing the swollen part of the patient's small intestine wall. The angle between the liquid water column ejected from the endoscope jet tube 200 and the cross-sectional plane of the fixed tube 111 is an acute angle β.

[0031] During implementation, since the camera 113 passes through all the locations that the groove 114 and the gastrointestinal tube body 120 will traverse before the camera 113 captures an ulcerated and swollen area inside the small intestine, the endoscopic spray tube 200 sprays liquid, such as saline, driving the rotating component 300 to rotate by a preset angle α. The size of α is calculated from the image captured by the camera 113, simply ensuring that the groove 114 is no longer directly facing the swollen area of ​​the small intestinal wall. During the detachment phase, the gastrointestinal tube body 120 can be aligned with the normal part of the small intestinal lumen, and thus, when detached from inside the groove 114, the movement of the gastrointestinal tube body 120 is not restricted by the position of the swollen area.

[0032] It should be noted that each latch 115 consists of a female component and a male component. The male component has a protrusion, and correspondingly, the female component has a complementary groove. When the protrusion of the male component is inserted into the hole of the female component, the gastrointestinal tube body 120 is locked into the groove 114 by elastic deformation. Simultaneously, at least one component in each pair of female and male components integrates a sensor, such as a Hall effect sensor. This sensor responds to electrical signals emitted by the operating unit 100; when a specific electrical signal is received, the sensor triggers a corresponding action. The female and male components also include electromagnetic coils for receiving and processing the electrical signals emitted by the operating unit 100 and converting them into mechanical force for unlocking the female and male components.

[0033] The following explains the principle by which the electrical signals emitted by the operating unit 100 control the opening of the female and male parts of the latch 115: First, once the gastrointestinal tube body 120 reaches the target position, the operator presses the button on the operation unit 100, generating an electrical signal. This signal is transmitted through the internal circuitry of the endoscope body 110 to the electrical signal receiving and control section of the latch 115. Next, the Hall effect sensors and electromagnetic coils in the female and male components receive this signal. The Hall effect sensors detect changes in the magnetic field inside the electromagnetic coil, triggering the unlocking mechanism. For example, after receiving the electrical signal, the Hall effect sensors control the magnitude and direction of the current in the electromagnetic coil, thereby changing the magnetic field strength and weakening the magnetic force between the protrusions and holes of the female and male components, thus unlocking them.

[0034] In order to reduce the resistance when the fixed tube 111 and the rotating tube 112 are inserted into the patient's gastrointestinal tract, and to reduce the damage to the patient caused by the reaction of the fixed tube 111 and the rotating tube 112 to the patient's throat and gastrointestinal wall, the fixed tube 111 and the rotating tube 112 are further defined below.

[0035] The fixed tube 111 and the rotating tube 112 are made of PTFE and have an inner diameter of ≥10mm. The wall thickness of both is 0.05mm and the total length of both is 170cm.

[0036] The front end of the part where camera 113 is located has a blunt, rounded shape, and its outer surface is coated with a super-slippery hydrophilic coating with a friction coefficient ≤0.05. Its function is as follows: PTFE hardly reacts with corrosive substances such as stomach acid and digestive enzymes, and it does not irritate the gastrointestinal mucosa, thus avoiding inflammation. Moreover, the smooth surface of PTFE, combined with a hydrophilic coating, further reduces friction, minimizing irritation to the patient's throat and gastrointestinal lining, and preventing the adhesion of mucus and food residue, thereby reducing the risk of cross-infection.

[0037] The adult esophagus is about 25cm long, the stomach is about 25-30cm long, and the duodenum of the small intestine is about 25-30cm long. The total length of the fixed tube 111 and the rotating tube 112, 170cm, can not only reach the patient's stomach, but also pass through the pylorus to reach the duodenum of the small intestine, avoiding the omission of lesions due to insufficient examination length.

[0038] The gastrointestinal mucosa, especially in eroded or swollen areas, is very fragile. The blunt, rounded tip reduces scraping at narrow or curved areas such as the esophageal inlet, gastric angle, and duodenum during insertion, preventing mucosal tears or bleeding and lowering the risk of examination complications. At the same time, the blunt, rounded shape better conforms to the natural curvature of the digestive tract, allowing for a "smooth opening" of mucosal folds during insertion rather than "poking," thus improving the smoothness of the procedure.

[0039] To facilitate understanding of the process of coaxially inserting the gastrointestinal tube body 120 and the rotating tube 112 into the patient's gastrointestinal tube and completing the separation, the specific operating steps are disclosed below: First, a suitable rotating tube 112 and gastrointestinal tube body 120 are selected during preoperative examination. The gastrointestinal tube body 120 is inserted into the groove 114 and locked with the buckle 115, forming a coaxial "tube-scope" assembly. Next, the "tube-scope" assembly is inserted coaxially through the oropharynx. Then, the assistant fixes the gastrointestinal tube body 120 outside the patient's body, and the surgeon presses the button on the operating unit 100 to release the buckle 115 from restricting the position of the gastrointestinal tube body 120. The surgeon then retracts and fixes the tube 111 and rotating tube 112, separating the rotating tube 112 from the gastrointestinal tube body 120, leaving the gastrointestinal tube body 120 in the patient's intestinal lumen. Finally, after the rotating tube 112 is completely withdrawn, nutrition is fed into the patient's small intestine or decompression is performed through the gastrointestinal tube body 120.

[0040] Example 2: In Example 1, by constructing the gastrointestinal tube body 120 and the rotating tube 112 into a coaxial "tube-scope" assembly as described above, and then inserting the assembly synchronously and separating it after reaching the target position in the small intestine, the problem of requiring the patient's throat to undergo multiple instrument insertions and exits when constructing an artificial channel can be solved.

[0041] However, generally speaking, patients who require the insertion of a gastrointestinal tube 120 have a higher probability of gastrointestinal diseases than healthy individuals, such as ulceration and swelling of the small intestine's inner wall. Please refer to [link to relevant documentation]. Figure 3 This illustrates that the cross-sectional area of ​​the small intestine lumen at the swollen area is smaller than that at the normal area. Therefore, after the gastrointestinal tube body 120 is placed inside the gastrointestinal tract, if the groove 114 is directly opposite the swollen area of ​​the inner wall of the small intestine lumen, it will cause inconvenience for the detachment of the gastrointestinal tube body 120. In view of this, the connection method of the fixing tube 111 and the rotating tube 112 is improved below. This embodiment is based on the content of Embodiment 1, and improves the position of the gastrointestinal tube body 120 when it detaches from the groove 114.

[0042] Based on the above explanation, and combined with Figure 5 The fixed tube 111 has an inlet tube 130 on its side wall that communicates with the outside. At one end of the fixed tube 111 near its connection with the rotating tube 112, multiple branch tubes 131 are provided. One end of each branch tube 131 is connected to the inlet tube 130, and the other end of each branch tube 131 is connected to the interior of the fixed tube 111. This facilitates the introduction of external saline solution into the interior of the fixed tube 111 for rinsing and moistening the affected area and for rotating the drive groove 114.

[0043] Multiple branch tubes 131 are connected to endoscopic jet tubes 200 at their openings inside the fixed tube 111. The endoscopic jet tubes 200 are used to pressurize external liquid and spray it into the fixed tube 111. The pressurized liquid drives the rotating assembly 300 to rotate, thereby causing the rotating tube 112, which is integrally connected to the rotating assembly 300, to turn. Finally, when the gastrointestinal tube body 120 is disengaged from the groove 114, the groove 114 is no longer directly facing the swollen area of ​​the small intestinal wall.

[0044] Multiple endoscopic jet tubes 200 are arranged in a circular array about the axis of the fixed tube 111. If the endoscopic jet tubes 200 spray water jets perpendicular to the cross-sectional slope of the fixed tube 111, the water jets cannot provide driving force for the rotation of the rotating assembly 300. If the endoscopic jet tubes 200 spray water jets horizontally, although they can drive the rotating assembly 300 to rotate, this would place the endoscopic jet tubes 200 in the path of the rotating assembly 300's rotation, thus obstructing the rotation of the rotating assembly 300. Therefore, by positioning the nozzle of the endoscopic jet tube 200 diagonally above the rotating assembly 300, the sprayed water jets can provide driving force for the rotation of the rotating assembly 300 without obstructing the rotation of the endoscopic jet tubes 200.

[0045] like Figure 6 and Figure 7As shown, a groove 140 is provided on the inner wall of the fixed tube 111 near the interface with the rotating tube 112. Multiple drainage holes 141 are provided on the side of the groove 140 away from the inner cavity of the fixed tube 111.

[0046] The rotating assembly 300 includes a rotating shaft 310 and a fixed seat 320. The fixed seat 320 is integrally formed with the inner wall of the rotating tube 112. The rotating shaft 310 is fixedly connected to the fixed seat 320 and extends into the interior of the fixed tube 111. Multiple blades 311 are radially fixedly connected to the rotating shaft 310.

[0047] The longitudinal section of blade 311 is fan-shaped, with an arc angle between 180° and 360°, so that blade 311 can withstand the impact force of the water jet ejected from the endoscope jet tube 200 and catch part of the liquid. The end of blade 311 away from the rotating shaft 310 extends into the groove 140. The centrifugal force generated by the rotation of blade 311 throws the collected saline from the drain hole 141 into the small intestine. Since the gastrointestinal tube body 120 located near the swollen area of ​​the small intestine wall is the part located inside the groove 114, that is, the small intestine wall near the drain hole 141 is intact, the gastrointestinal tube body 120 needs to perform medical operations on the affected area of ​​the small intestine, and will stop extending further when it encounters the affected area. After the saline flows out of the drain hole 141, it flows down the small intestine wall to moisten the swollen area, and is then suctioned out after reaching the end of the rotating tube 112.

[0048] The portion of the gastrointestinal tube body 120 that transitions from the fixed tube 111 to the groove 114 is in a natural state, meaning that the projected length of the gastrointestinal tube body 120 on this path is greater than the length of the line connecting the fixed tube 111 to the groove 114 on the rotating tube 112.

[0049] As disclosed above, the cross-sections of the rotating tube 112 near the fixed tube 111 and the camera 113 are nearly circular, meaning the shape of the rotating tube 112 near these two locations is close to a cylinder. The portion of the rotating tube 112 that holds the gastrointestinal tube body 120 is concave, forming a groove 114. Therefore, when the gastrointestinal tube body 120 transitions from the groove 114 to the fixed tube 111, its path is inclined, meaning the gastrointestinal tube body 120 also needs to conform to the outer contour of the rotating tube 112 at the transition point.

[0050] However, it is important to note that the gastrointestinal tube body 120 should not be in a taut state at this point. Otherwise, when the groove 114 encounters a swollen area and needs to deflect, the taut gastrointestinal tube body 120 will pull the rotating tube 112, restricting its turning.

[0051] For a better understanding of the above content, please refer to [link / reference]. Figure 8In the shaded area, the length of the dashed line between points X and Y is greater than the length of the solid line. That is, the gastrointestinal tube body 120 is kept relaxed in the area where it transitions from the fixed tube 111 to the groove 114, which leaves sufficient length margin when the rotating tube 112 deflects at a subsequent angle.

[0052] For specific implementation details, please refer to [link / reference]. Figure 9 As shown, the working principle of the insertion device is described in detail below: During the process of the gastrointestinal tube body 120 being inserted into the patient's gastrointestinal tract along with the rotating tube 112, if the camera 113 observes in advance that the gastrointestinal tube body 120 is facing the swelling, the saline solution that is introduced into the fixed tube 111 is pressurized through the endoscopic spray tube 200 and sprayed at a certain angle onto the concave side of the blade 311.

[0053] The energy generated when the water jet impacts the blade 311 causes the blade 311 to deflect at a certain angle. Consequently, the rotating tube 112 also deflects at a certain angle under the influence of the blade 311, moving the groove 114, which was originally facing the swollen area of ​​the small intestine, away from that position. This ensures that after the restriction on the position of the gastrointestinal tube body 120 is lifted, the gastrointestinal tube body 120 will not come into contact with the swollen area of ​​the small intestine wall.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A disposable gastroscopy-guided simultaneous gastrointestinal tube insertion device with a rapid separation mechanism, comprising a gastroscope body (110) and a gastrointestinal tube body (120), wherein the gastroscope body (110) is connected to an operating unit (100), and the gastrointestinal tube body (120) is coaxially arranged with the gastroscope body (110), characterized in that: The endoscope (110) includes a fixed tube (111), a rotating tube (112), and a camera (113). A groove (114) is provided on one side of the rotating tube (112). The part of the gastrointestinal tube body (120) inserted into the patient's gastrointestinal tract is located in the groove (114). Multiple buckles (115) for fixing the gastrointestinal tube body (120) are provided inside the groove (114). The rotating tube (112) is rotatably connected to the fixed tube (111); The rotating tube (112) has a rotating assembly (300) integrally provided on the inner wall of one end near the fixed tube (111). The fixed tube (111) has a plurality of endoscopic spray tubes (200) on the inner wall of one end near the rotating tube (112). The endoscopic spray tubes (200) are used to spray liquid and drive the rotating assembly (300) to rotate at a preset angle α so that the groove (114) is misaligned with the swollen part of the small intestine wall. The angle between the liquid water column ejected by the endoscope jet tube (200) and the cross-sectional plane of the fixed tube (111) is an acute angle β.

2. The disposable gastroscopy-guided simultaneous gastrointestinal tube insertion device with a rapid separation mechanism according to claim 1, characterized in that: The fixed tube (111) and the rotating tube (112) are made of PTFE and have an inner diameter of ≥10mm. The wall thickness of both is 0.05mm and the total length of both is 170cm.

3. The disposable gastroscopy-guided simultaneous gastrointestinal tube insertion device with a rapid separation mechanism according to claim 1, characterized in that: The front end of the camera (113) is blunt and rounded, and its outer surface is coated with a super-slippery hydrophilic coating with a friction coefficient ≤0.

05.

4. The disposable gastroscopy-guided simultaneous gastrointestinal tube insertion device with a rapid separation mechanism according to claim 1, characterized in that: The side wall of the fixed tube (111) is provided with an inlet pipe (130) that communicates with the outside. The fixed tube (111) has multiple branch pipes (131) at one end near the connection between it and the rotating tube (112). One end of each branch pipe (131) is connected to the inlet pipe (130), and the other end of each branch pipe (131) is connected to the inside of the fixed tube (111).

5. The disposable gastroscopy-guided simultaneous gastrointestinal tube insertion device with a rapid separation mechanism according to claim 4, characterized in that: Each of the branch tubes (131) is connected to an endoscope jet tube (200) at the opening inside the fixed tube (111). The endoscope jet tube (200) is used to pressurize external liquid and spray it into the fixed tube (111).

6. The disposable gastroscopy-guided simultaneous gastrointestinal tube insertion device with a rapid separation mechanism according to claim 1, characterized in that: The plurality of the endoscopic jet tubes (200) are arranged in a ring array about the axis of the fixation tube (111).

7. The disposable gastroscopy-guided simultaneous gastrointestinal tube insertion device with a rapid separation mechanism according to claim 1, characterized in that: The fixed tube (111) has a groove (140) on the inner wall of one end near its interface with the rotating tube (112). The groove (140) has multiple drainage holes (141) on the side away from the inner cavity of the fixed tube (111).

8. The disposable gastroscopy-guided simultaneous gastrointestinal tube insertion device with a rapid separation mechanism according to claim 7, characterized in that: The rotating assembly (300) includes a rotating shaft (310) and a fixed seat (320). The fixed seat (320) is integrally formed with the inner wall of the rotating tube (112). The rotating shaft (310) is fixedly connected to the fixed seat (320) and extends into the interior of the fixed tube (111). Multiple blades (311) are fixedly connected to the radial direction of the rotating shaft (310).

9. The disposable gastroscopy-guided simultaneous gastrointestinal tube insertion device with a rapid separation mechanism according to claim 8, characterized in that: The longitudinal section of the blade (311) is fan-shaped, and the arc angle of the fan is between 180° and 360°, so that the blade (311) can withstand the impact force of the water column ejected by the endoscope jet tube (200) and transfer part of the liquid to the drain port (141). The end of the blade (311) away from the rotating shaft (310) extends into the slide groove (140).

10. The disposable gastroscopy-synchronized gastrointestinal tube insertion device with a rapid separation mechanism according to claim 8, characterized in that: The portion of the gastrointestinal tube body (120) that transitions from the fixed tube (111) to the groove (114) is in a natural state, that is, the projected length of the gastrointestinal tube body (120) in the transition portion is greater than the length of the straight line connecting the fixed tube (111) and the groove (114).

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