A visual anti-reflux multifunctional nutrition gastric tube

Abstract

A visualized anti-reflux multifunctional nutrition gastric tube belongs to the field of medical devices, comprising a central tube, a concentric outer sleeve arranged on the periphery of the central tube, two ends of the central tube extending to the outside of the two ends of the outer sleeve, the central tube and the outer sleeve both including an interior and an exterior of the body, the outer sleeve is sealed and connected to the periphery of the central tube at the end inside the body, a trachea is arranged in the outer sleeve, the trachea extends to an anti-reflux airbag arranged at the lower part of the inner part of the outer sleeve, a visualized camera wire is passed through the end of the central tube, a signal transmitting device is connected to the upper end of the wire, a plurality of openings are arranged on the central tube and the outer sleeve, and through dynamic real-time imaging technology, the central tube has the functions of both a gastric tube and a jejunal nutrition tube, and its unique anti-reflux function can also effectively solve the problem that the application of laryngeal mask anesthesia is limited to gastric surgery.

Description

Technical Field

[0001] The utility model relates to a nutritional gastric tube, in particular to a visualized anti-backflow multifunctional nutritional gastric tube, belonging to the field of medical instruments. Background Art

[0002] In recent years, the incidence of esophageal-gastric junction adenocarcinoma has shown a certain upward trend both at home and abroad, and radical surgical resection is still the only means of curing it. Gastric tubes and jejunal feeding tubes, as commonly used clinical medical devices, are widely used in gastrointestinal decompression and nutrient infusion in patients undergoing surgery for esophageal-gastric junction adenocarcinoma. Conventional gastric tubes and jejunal feeding tubes are inserted through the nasal cavity blindly, and the distal ends pass through the nasal cavity, oral cavity, and esophagus to reach the designated position, providing gastrointestinal decompression, nasogastric feeding nutrition, and enteral nutrition support to improve patient prognosis.

[0003] Conventional gastric tubes and jejunal feeding tubes are both single-lumen tubes. Using traditional methods to insert gastric tubes and jejunal feeding tubes, two tubes need to be inserted through the nasal cavity separately. They can only be inserted blindly without visual operation, and cannot effectively suppress reflux and aspiration.

[0004] Before the operation, a gastric tube is inserted through the nasal cavity and the patient is instructed to swallow. It often happens that the gastric tube stays in the mouth and cannot enter the esophagus. The intubation time is too long and the accuracy rate is low. Repeated blind insertion will cause edema of the throat tissue and increase the difficulty of intubation. Since there is abundant cavernous venous tissue in the nasal cavity, it is also easy to cause edema and bleeding of the nasal mucosa, which brings tension and fear to the patient.

[0005] According to the intraoperative surgical requirements, the gastric tube needs to be withdrawn while being sucked, and then the jejunal nutrition tube is inserted into the side hole at the tip of the gastric tube and sent into the stomach cavity through the nose at the same time. During the operation, it is pulled out and separated by the gastric stump. After the anastomosis is completed, the gastric tube and jejunal nutrition tube are sent to the stomach cavity and jejunum respectively. Because the patient under general anesthesia is in an unconscious state, the patient cannot be required to complete swallowing and other actions to cooperate with the insertion of the gastric tube and jejunal nutrition tube. In addition, there is a tracheal tube in the upper part of the laryngopharynx, which causes the jejunal nutrition tube to be blocked from the pharyngeal isthmus when it descends to this point, and it is entrenched in the mouth and cannot enter the esophagus. The operation is complicated, time-consuming, and the accuracy rate is low.

[0006] How to use a gastric tube under visual conditions to deliver enteral nutrition to the intestines and parenteral nutrition to the stomach, and to extract gastric juice and intestinal juice from the stomach and intestines to achieve gastrointestinal decompression according to clinical needs, is a convenient device that gastrointestinal surgeons are very much looking forward to. Utility Model Content

[0007] In view of the prior art of inserting a gastric tube and a jejunal nutrition tube, two tubes need to be inserted separately through the nasal cavity, and it is a blind insertion that cannot be visualized, and it cannot effectively suppress problems such as reflux and aspiration. The utility model provides a visualized anti-reflux multifunctional nutrition gastric tube, the purpose of which is to accurately insert an anti-reflux multifunctional nutrition gastric tube that has the functions of both a gastric tube and a jejunal nutrition tube through dynamic real-time imaging technology. Its unique anti-reflux function can also effectively solve the problem that the application of laryngeal mask anesthesia is limited to gastric surgery.

[0008] The technical scheme of the utility model is: a visualized anti-reflux multifunctional nutrition gastric tube, comprising a camera, the visualized anti-reflux multifunctional nutrition gastric tube comprising a central tube, the outer periphery of the central tube is provided with a concentric outer sleeve, the two ends of the central tube extend to the outside of the two ends of the outer sleeve, the central tube and the outer sleeve both include an inner body and an outer body, the outer sleeve is sealed and connected to the outer periphery of the central tube at the inner end of the body, an inflatable tube is arranged in a rectangular shape inside the outer sleeve, the trachea extends to the anti-reflux airbag arranged below the inner end of the outer sleeve body, the central tube is penetrated with a wire and a guide wire of a visualized camera part of a visualized camera device, the wire and the guide wire at the inner end of the central tube body are connected with a visualized camera part, the wire at the outer end of the central tube body is connected with a signal acquisition and transmission device connected with the camera wire and wirelessly connected with a terminal, and a plurality of openings are arranged on the central tube and the outer sleeve;

[0009] Further, the central tube extending from the inner end of the outer tube body is an intestinal tube, and the intestinal tube inside the central tube body has multiple openings, including the opening at the end of the central tube and multiple thin tube bypass holes connected to the outer periphery of the intestinal tube and the central tube; the inner part of the outer tube body is a stomach tube, and the stomach tube inside the outer tube body is provided with multiple openings, including a thick tube bypass hole connected to the outer periphery of the stomach tube and the inner part of the outer tube;

[0010] Furthermore, a one-way valve water injection piston is arranged at the outer periphery of the external end of the central tube, a valve water injection piston port is arranged above the one-way valve water injection piston at the outer periphery of the central tube, a piston cover is provided on the one-way valve water injection piston, an opening identical to the one-way valve water injection piston port is arranged at the upper end of the piston cover, and the piston cover is connected to the outer periphery of the outer sleeve through a connecting cable;

[0011] Furthermore, an inclined external bypass tube and an air filling tube are arranged on the outer circumference of the upper part of the outer part of the outer sleeve, and a one-way valve is arranged on the outer end of the air filling tube;

[0012] Furthermore, the anti-backflow airbag is arranged on the outer periphery of the central tube below the end inside the outer tube body, the distance between the anti-backflow airbag and the head end inside the central tube body is between 3-4 cm, the trachea is sealed and connected to the anti-backflow airbag through the outer tube, and the inflation tube and the inner end of the outer tube body are sealed with each other;

[0013] Furthermore, a plurality of LED lights are arranged around the camera of the visualization camera unit, and the maximum diameter of the visualization camera unit is smaller than the inner diameter of the central tube;

[0014] Furthermore, the signal collection and transmission device is wirelessly connected to the terminal display, and the terminal display includes a mobile phone and a computer display.

[0015] The positive effects of the utility model are as follows: by arranging a central tube on the visualized anti-reflux multifunctional nutrition gastric tube, a visualized camera part can be inserted, so that the blind insertion in the prior art is transformed into visualization, and the conditions of the nasal cavity, esophagus, stomach, duodenum, jejunum, etc. along the way can be understood during the insertion process; by arranging a one-way valve water injection piston at the upper end of the central tube and injecting water from the valve water injection piston port, blood stains and sticky substances at the end of the camera head can be cleaned to achieve a clear state; by arranging a piston cover and arranging an opening on the piston cover that is the same as the one-way valve water injection piston port, the piston cover can be covered when the camera part is pulled out, and water, nutrient solution and medicine can be injected after the operation. Injection is performed through the opening on the piston cover; by providing an inclined external bypass tube on the upper part of the outer outer tube body, gastric juice can be sucked outward by negative pressure, and nutrient solution, medicine, etc. can also be injected into the stomach; by providing an inclined flushing tube on the upper part of the outer outer tube body and a one-way valve at the end, the anti-reflux balloon can be inflated to enlarge the originally flat anti-reflux balloon. When its diameter exceeds the cardia connecting the esophagus and the stomach, the tail end of the central tube outside the nasal cavity is gently pulled outward until resistance is felt, so that it is positioned in the cardia to play an anti-reflux role. At this time, the end of the enteral tube is located in the stomach, and the enteral tube can be used as a stomach tube to perform negative pressure suction of the stomach, so that laryngeal mask anesthesia can be safely used in gastric surgery. After the operation is completed, the one-way valve at the inflatable mouth end can release the gas in the anti-reflux balloon, and the enteral tube can be extended from the stomach to the intestine to implement enteral nutrition injection, etc. By setting a plurality of thin tube bypass holes on the inner periphery of the central tube, enteral nutrition solution, medicine, etc. can be injected into the periphery of the intestine. By setting an opening at the inner end of the central tube body, camera cleaning water can flow out from the end opening. By setting a thick tube bypass hole on the inner periphery of the outer tube body, it is beneficial to extract gastric juice and decompress the stomach. The utility model uses dynamic real-time imaging technology to accurately insert an anti-reflux multifunctional nutrition gastric tube that has the functions of a gastric tube and a jejunal nutrition tube. Its unique anti-reflux function can also effectively solve the problem that the application of laryngeal mask anesthesia is limited to gastric surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The overall structural diagram of the utility model.

[0017] Figure 2 Schematic diagram of the structure of the visual camera device.

[0018] Explanation of reference numerals: 10-central tube, 10a outside of central tube body, 10b inside of central tube body, 11-visualized camera device, 11a-signal transmitting device, 12-one-way valve water injection piston, 12a-valve water injection piston mouth, 13-piston cover, 14-external bypass tube, 15-inflation tube, 15a-one-way valve, 16-outer tube, 16a-outside of outer tube body, 16b-inside of outer tube body, 17-thick tube bypass hole, 18-thin tube bypass hole, 19-anti-backflow airbag, 20-camera unit, 21-LED lamp, 22-camera, 23-trachea. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] The technical solution of the utility model is: a visual anti-reflux multifunctional nutrition gastric tube, comprising a camera, Figure 1 It is a schematic diagram of the overall structure of the utility model. Figure 2 1 is a structural schematic diagram of a visualization camera device, wherein the visualization anti-reflux multifunctional nutrition gastric tube comprises a central tube 10, a concentric outer sleeve 16 is arranged on the periphery of the central tube 10, the length of the central tube 10 is greater than the length of the outer sleeve 16, both ends of the central tube 10 extend to the outside of both ends of the outer sleeve 16, the central tube 10 and the outer sleeve 16 both include an inner body and an outer body, the lower end of the inner body 16a of the outer sleeve is sealed and connected to the outer periphery of the central tube 10, an inflation tube 15 is arranged inside the outer sleeve 16, and extends to the outer sleeve 16, and the outer The trachea 23 in the sleeve 16 extends through the inside of the outer sleeve body 16 to the anti-backflow airbag 19 arranged on the outer periphery of the central tube 10 below the end of the outer sleeve 16. The central tube 10 is penetrated by a guide wire and a guide wire of a visualization camera unit 20. The inner end of the central tube body is provided with a visualization camera unit 20 of a visualization camera device 11. The wire at the end of the outer end 10a of the central tube body is connected to a signal acquisition and transmission device 11a connected to the camera 22 by wire and wirelessly connected to the terminal. Multiple openings are provided on the central tube 10 and the outer sleeve 16.

[0021] The central tube 10 extending from the end portion 16b of the outer sleeve body is an intestinal tube, and the intestinal tube inside the central tube body 10b has multiple openings, including an opening at the end portion of the central tube and multiple thin tube bypass holes 18 connecting the outer periphery of the intestinal tube to the central tube 10; the inner portion 16b of the outer sleeve body is a stomach tube, and the stomach tube inside the outer sleeve body 16b is provided with multiple openings, including a thick tube bypass hole 17 connecting the outer periphery of the stomach tube to the inner portion of the outer sleeve.

[0022] A one-way valve water injection piston 12 is arranged on the outer periphery of the end portion 10a of the central tube body, a valve water injection piston port 12a is arranged above the one-way valve water injection piston on the outer periphery of the central tube 10, a piston cover 13 is provided on the one-way valve water injection piston 12, an opening which is the same as the one-way valve water injection piston port 12a is arranged on the upper end of the piston cover 13, and the piston cover 13 is connected to the outer periphery of the outer sleeve 16 by a connecting rope.

[0023] An inclined external bypass pipe 14 and an air filling pipe 15 are arranged on the outer circumference of the upper part of the outer sleeve body 16a, and a one-way valve 15a is arranged at the outer end of the air filling pipe 15.

[0024] The anti-backflow airbag 19 is arranged on the outer periphery of the central tube 10 below the end of the inner part 16b of the outer sleeve body. The distance between the anti-backflow airbag 19 and the end of the inner part 10b of the central tube body is between 3-4cm. The air tube 23 connected to the inflation tube 15 is sealed and connected to the anti-backflow airbag 19 through the outer sleeve, and the air tube 23 and the end of the inner part 16b of the outer sleeve body are sealed with each other.

[0025] A plurality of LED lights 21 are arranged around the camera head 22 of the visualization camera unit, and the maximum diameter of the visualization camera unit 20 is smaller than the inner diameter of the central tube 10 .

[0026] The signal transmitting device 11a of the terminal wireless connection is wirelessly connected to the terminal display, and the terminal display includes a mobile phone and a computer display.

[0027] In this embodiment, the camera unit is a miniature endoscope, which is a prior art. The signal acquisition and transmission device 11a adopts the same control method as the wireless visual ear spoon, except that the camera unit 20 is extended in the central tube 10 by a wire, and the wire is set in the guide wire, which is spring-shaped and hollow in the middle. The signal acquisition and transmission device 11a weighs only 13g and is 145mm long. It has a built-in wireless transmission antenna, the network standard is IEEE 802.11b / g / n, the operating frequency is 2.4Ghz, the image transmission rate is 30fps, and the image transmitter is CMOS.

[0028] Although the structure of a central tube and an outer sleeve is adopted in this embodiment, it is not limited to this structure. The central tube and the outer sleeve can also be formed into a thicker catheter with an isolation in the middle, one side is used as a gastric nutrition catheter, and the other side is used as an intestinal nutrition catheter. The intestinal nutrition catheter is extended to both ends of the gastric nutrition catheter, and bypass tubes and bypass holes identical to those of the present technical solution are respectively set at both ends of the intestinal nutrition catheter and the gastric nutrition catheter.

[0029] The present invention adopts a material that is not transparent to X-rays, and in this embodiment, a thermosensitive polyurethane material (TPU) is adopted, the purpose of which is to be able to clearly display its position or state under X-rays. Specific embodiments

[0030] After the patient enters the operating room and is given basic anesthesia and appropriate sedation and analgesia, the visualization camera device 11 is inserted into the central tube 10, and an opening is set at the end 10b of the central tube body. Cleaning water flows out from the opening at the inner end of the central tube 10 to clean the camera part 20, and then the central tube 10 is inserted into the patient's mouth through the nose and reaches the stomach through the esophagus. By setting an inclined flushing tube 15 on the upper part of the outer part 16a of the outer sleeve body and a one-way valve 15a at the end, the anti-reflux airbag 19 is inflated to make the originally flat anti-reflux airbag 19 larger. When its diameter exceeds the cardia connecting the esophagus and the stomach, the tail end of the central tube 10 outside the nasal cavity is gently pulled outward until resistance is felt, so that the anti-reflux airbag 19 is positioned at the cardia to play an anti-reflux role. At this time, the end of the intestinal tube is located in the stomach, and the visualization camera device 11 is pulled out. The intestinal tube can be used as a stomach tube to perform stomach negative pressure suction, so that laryngeal mask anesthesia can be safely used in gastric surgery. After the gastric surgery is completed, the gas in the anti-reflux airbag 19 can be released from the one-way valve 15a at the inflation port end, and after the visualization camera 11 is inserted into the central tube 10 again, the intestinal tube can be sent from the stomach to the jejunum in a visible state. By setting a plurality of thin tube bypass holes 18 on the periphery of the central tube body 10b, nutrient solution and the like can be injected into the periphery of the intestine. By setting a thick tube bypass hole 17 on the periphery of the outer sleeve body 16b, it is beneficial to extract gastric juice and reduce the pressure on the stomach.

[0031] The positive effects of the utility model are as follows: by arranging a central tube 10 on the visualized anti-reflux multifunctional nutrition gastric tube, a visualized camera part 20 can be inserted, and the blind insertion in the prior art can be transformed into visualization, so that the conditions of the nasal cavity, esophagus, stomach, duodenum, jejunum and other cavities along the way can be understood during the insertion process; by arranging a one-way valve water injection piston 12 at the upper end of the central tube 10, water injection or intestinal nutrition injection can be performed from the valve water injection piston port 12a without delaying the operation and the camera 22. By water injection, blood stains and sticky substances at the end of the camera 20 can be cleaned to achieve a clear visual state, which is conducive to accurate positioning in the intestine and stomach; by injecting intestinal nutrition, it is conducive to maintaining the intestine; by arranging a piston cover 13, and arranging an opening on the piston cover 13 that is the same as the one-way valve water injection piston port 12a, When the camera unit 20 is pulled out, the piston cover 13 is covered, and when water injection or enteral nutrition injection is needed, water injection or enteral nutrition injection can be carried out through the opening on the piston cover 13; by arranging an inclined external bypass tube 14 on the upper part of the outer part 16a of the outer sleeve body, gastric juice can be sucked outward, and nutrient solution can also be injected into the stomach; by arranging an inclined flushing tube 15 on the upper part of the outer part 16a of the outer sleeve body and a one-way valve 15a at the end, the anti-reflux airbag 19 can be inflated to make the originally flat anti-reflux airbag 19 larger. When its diameter exceeds the cardia connecting the esophagus and the stomach, the tail end of the central tube is gently pulled outward until resistance is felt, so that the anti-reflux airbag 19 is positioned at the cardia to play an anti-reflux role. At this time, the end of the enteral tube is located in the stomach, and the enteral tube can be used as a stomach tube to perform stomach negative pressure suction, so that laryngeal mask anesthesia can be safely used in gastric surgery. After the gastric surgery is completed, the gas in the anti-reflux balloon 19 can be released from the one-way valve 15a at the inflation port end, and the enteral tube can be extended from the stomach to the intestine to implement enteral nutrition injection, etc., and a plurality of thin tube bypass holes 18 are provided on the periphery of the inner part 10b of the central tube body, so that nutrient solution and the like can be injected into the periphery of the intestine, and an opening is provided at the end of the inner part 10b of the central tube body, so that cleaning water can flow out from the front end opening of the central tube to clean the camera part, and a thick tube bypass hole 17 is provided on the periphery of the inner part 16b of the outer sleeve body, which is conducive to extracting gastric juice and reducing the pressure on the stomach; the utility model uses dynamic real-time imaging technology to accurately insert an anti-reflux multifunctional nutrition gastric tube having the functions of a gastric tube and a jejunal nutrition tube, and its unique anti-reflux function can also effectively solve the problem that the application of laryngeal mask anesthesia is limited to gastric surgery.

Claims

1. A visualized anti-reflux multifunctional nutrition gastric tube, comprising a camera, characterized in that: The visualized anti-reflux multifunctional nutritional gastric tube includes a central tube, a concentric outer sleeve is arranged on the periphery of the central tube, two ends of the central tube extend to the outside of the two ends of the outer sleeve, the central tube and the outer sleeve both include an interior and an exterior, the outer sleeve is sealed and connected to the periphery of the central tube at the end inside the body, an inflation tube is arranged above the outer sleeve, the trachea extends to an anti-reflux airbag arranged below the end inside the outer sleeve body, a wire and a guide wire of a visualized camera part of a visualized camera device are penetrated in the central tube, the visualized camera part is connected to the wire and the guide wire at the end inside the central tube body, a signal acquisition and transmitting device connected to the camera wire and wirelessly connected to the terminal is connected to the wire at the end outside the central tube body, and multiple openings are arranged on the central tube and the outer sleeve.

2. A visualized anti-reflux multifunctional nutrition gastric tube according to claim 1, characterized in that: The central tube extending from the inner end of the outer sleeve is an intestinal tube, and the intestinal tube inside the central tube body has multiple openings, including an opening at the end of the central tube and multiple thin tube bypass holes connected to the outer periphery of the intestinal tube and the central tube; the inner part of the outer sleeve body is a stomach tube, and the stomach tube inside the outer sleeve body is provided with multiple openings, including a thick tube bypass hole connected to the outer periphery of the stomach tube and the inner part of the outer sleeve.

3. The visual anti-reflux multifunctional nutrition gastric tube according to claim 1, characterized in that: A one-way valve water injection piston is arranged on the outer periphery of the extracorporeal end portion of the central tube, a valve water injection piston port is arranged above the one-way valve water injection piston on the outer periphery of the central tube, a piston cover is provided on the one-way valve water injection piston, an opening identical to the one-way valve water injection piston port is arranged on the upper end of the piston cover, and the piston cover is connected to the outer periphery of the outer casing through a connecting rope.

4. The visual anti-reflux multifunctional nutrition gastric tube according to claim 1, characterized in that: An inclined external bypass pipe and an air filling pipe are arranged on the outer circumference of the upper part of the outer part of the outer sleeve, and a one-way valve is arranged on the outer end of the air filling pipe.

5. The visual anti-reflux multifunctional nutrition gastric tube according to claim 1, characterized in that: The anti-backflow airbag is arranged on the outer periphery of the central tube below the end inside the outer sleeve body, the distance between the anti-backflow airbag and the head end inside the central tube body is between 3-4cm, the inflation tube is sealed and connected to the anti-backflow airbag through the outer sleeve, and the trachea and the inner end of the outer sleeve body are sealed with each other.

6. The visualized anti-reflux multifunctional nutrition gastric tube according to claim 1, characterized in that: A plurality of LED lights are arranged around the camera head of the visualization camera unit, and the maximum diameter of the visualization camera unit is smaller than the inner diameter of the central tube.

7. The visualized anti-reflux multifunctional nutrition gastric tube according to claim 1, characterized in that: The signal collection and transmission device is wirelessly connected to the terminal display, and the terminal display includes a mobile phone and a computer display.

Images