A nasojejunal nutrition tube suitable for placement during laparoscopic surgery

Abstract

The present invention relates to a nasojejunal nutrition tube suitable for placement during laparoscopic surgery. The tube comprises a nutrition tube, an air bag, a delivery end, a positioning end, a delivery flare, an air bag gas delivery assembly, and a guide wire. The delivery end is fixedly connected between the positioning end and the nutrition tube, the air bag is arranged on the delivery end, the delivery flare is arranged on the nutrition tube, the air bag gas delivery assembly is connected to the air bag, the air bag gas delivery assembly is fixedly connected to the delivery flare, the guide wire is detachably connected to the nutrition tube, and a feeding inclined hole is arranged on the delivery end. The beneficial effects of the present invention are: (1) the broken end portion can be freely rotated, and the direction can be changed to facilitate the placement operation. (2) The sealing effect after the air bag is inflated can be completed by one hand, which is convenient for operation. (3) It can simulate intestinal peristalsis to transport nutrients and effectively prevent blockage.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a nasojejunal nutrition tube suitable for placement in laparoscopic surgery. Background Art

[0002] Over the past 20 years, with the rapid development of laparoscopic technology, an increasing number of radical gastrointestinal tumor surgeries have been performed laparoscopically or with the assistance of surgical robots. Numerous clinical studies have demonstrated the advantages of laparoscopic surgery over traditional open surgery, including less trauma to patients and faster postoperative recovery. Furthermore, laparoscopic surgery is comparable to traditional open surgery in terms of tumor radicality.

[0003] In clinical practice, some patients undergoing radical resection of hepatobiliary, pancreatic, and gastric tumors require intraoperative placement of a nasojejunal feeding tube to address postoperative nutritional needs. This tube allows for enteral nutrition after surgery, accelerating patient recovery. In the era of open surgery, the nasojejunal feeding tube could be placed in the appropriate position during digestive tract reconstruction using the surgeon's sense of touch and coordination. However, with laparoscopic surgery becoming increasingly prevalent, accurate placement of the nasojejunal feeding tube has become a relatively difficult procedure due to the surgeon's inability to place their hands in the patient's abdominal cavity during surgery. Especially for surgeons who are not skilled in laparoscopic surgery, laparoscopic placement of a nasojejunal feeding tube often takes a considerable amount of time and may even result in iatrogenic intestinal damage. Summary of the Invention

[0004] In view of the problems in the prior art, the present invention provides a nasojejunal nutrition tube suitable for placement during laparoscopic surgery.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A nasojejunal nutrition tube suitable for placement during laparoscopic surgery comprises a nutrition tube, an air bag, a delivery end, a positioning end, a delivery flare, an air bag gas delivery assembly, and a guide wire. The delivery end is fixedly connected between the positioning end and the nutrition tube, the air bag is arranged on the delivery end, the delivery flare is arranged on the nutrition tube, the air bag gas delivery assembly is connected to the air bag, the air bag gas delivery assembly is fixedly connected to the delivery flare, the guide wire is detachably connected to the nutrition tube, the delivery end is provided with a feeding oblique hole, and the positioning end is provided with a flashing cold light lamp.

[0007] Specifically, the delivery expansion port includes two adjustment wires for controlling the direction of the positioning end, and two elastic guide ropes fixed to the positioning end. The two adjustment wires and the two elastic guide ropes are slidably connected to the nutrition tube and the delivery end.

[0008] Specifically, the nutrition tube includes an outer tube wall, a bending peristaltic simulation tube and an electromagnet control part. The bending peristaltic simulation tube is arranged on the inner wall of the outer tube wall, and the electromagnet control part is fixedly connected to the positioning end head. The outer tube wall, the bending peristaltic simulation tube and the electromagnet control part can all be bent.

[0009] Specifically, the bending peristaltic simulation tube includes a plastic tube wall and a telescopic iron ring, and the plastic tube wall is fixedly connected to a plurality of telescopic iron rings.

[0010] Specifically, the electromagnet control part includes an inner wall rubber tube, a return spring, a limiting track, a winding wheel, a connecting shaft, an electromagnet ring, a limiting guide block, a spring limiting end and a traction wire. The inner wall rubber tube is fixed to the outer tube wall, the return spring is sleeved on the limiting track, the upper end of the return spring contacts the electromagnet ring, the bottom of the electromagnet ring is fixed to the limiting guide block, the bottom of the return spring is fixed to the spring limiting end, the spring limiting end is fixed to the outer tube wall, the spring limiting end is located on the upper side of the feeding inclined hole of the conveying end, one end of the traction wire is fixed to the bottom of the limiting guide block, the limiting guide block is slidably connected in the limiting track, the winding wheel is fixed with a connecting shaft, the connecting shaft is rotatably connected to the outer tube wall, the traction wire passes through the winding wheel, and the other end of the traction wire passes through the inner wall rubber tube.

[0011] Specifically, the positioning end includes an end wall tube, a protective steel wire mesh and a lamp placement groove. The protective steel wire mesh is fixed to the inside of the end wall tube, the end wall tube is fixed to the conveying end, the lamp placement groove is used to install the lamp, and the lamp placement groove is arranged in the protective steel wire mesh. Two adjustment steel wires and two elastic guide ropes are all fixed to the upper end of the end wall tube.

[0012] Specifically, the conveying expansion also includes an expansion cylinder and an angle adjustment wheel. The two angle adjustment wheels are rotatably connected to the expansion cylinder, the expansion cylinder is fixed to the outer tube wall, the two adjustment wires are respectively fixed to the two angle adjustment wheels, and the two elastic guide ropes are fixed to the expansion cylinder.

[0013] Specifically, the two elastic ropes are both made of elastic rubber material.

[0014] Specifically, the airbag gas delivery assembly includes an airbag connecting tube and a syringe connecting tube. The airbag connecting tube is detachably connected to the flaring tube and communicates with the airbag. The syringe connecting tube is fixed to the airbag connecting tube.

[0015] Specifically, the airbag air delivery assembly also includes guide rods, a fixed plate, a closing plate and a clamping plate. Multiple guide rods are fixedly connected to the bag connecting tube. Two fixed plates are provided, and the two fixed plates are located on the upper and lower sides of the airbag connecting tube. Multiple guide rods are fixedly connected to one of the two fixed plates, and multiple guide rods are slidably connected to the other fixed plate. The clamping plate is fixed to one of the two fixed plates, and the closing plate is rotatably connected to the other fixed plate.

[0016] Specifically, the closing plate is made of hard plastic material.

[0017] The beneficial effects of the present invention are:

[0018] (1) The broken part can be rotated freely, and the direction can be changed to facilitate the placement operation.

[0019] (2) The sealing effect after the airbag is inflated can be completed with one hand, which is convenient for operation.

[0020] (3) It can simulate intestinal peristalsis to transport nutrients and effectively prevent blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and examples.

[0022] Figure 1 It is an overall diagram of the present invention;

[0023] Figure 2 For the present invention Figure 1 Magnified image of;

[0024] Figure 3 The nutrition tube of the present invention is cut away Figure 1 ;

[0025] Figure 4 The nutrition tube of the present invention is cut away Figure 2 ;

[0026] Figure 5 It is an enlarged view of the figure of the present invention;

[0027] Figure 6 This is a schematic diagram of the connection between the nutrition tube, the delivery expansion port, and the air bag gas delivery component of the present invention;

[0028] Figure 7 This is a schematic diagram of the connection between the nutrition tube and the air bag of the present invention;

[0029] Figure 8 is a cross-sectional view of the positioning end head of the present invention;

[0030] Figure 9 The air bag gas delivery component of the present invention;

[0031] Figure 10 Another perspective of the air bag air delivery component of the present invention.

[0032] In the figure: a feeding tube 1; an air bag 2; a delivery end 3; a positioning end 4; a delivery flare 5; an air bag gas delivery component 6; a guide wire 7; an outer tube wall 11; a bending peristaltic simulation tube 12; an electromagnet control unit 13; a plastic tube wall 121; a telescopic iron ring 122; an inner wall rubber tube 131; a return spring 132; a limiting track 133; a winding wheel 134; a connecting shaft 135; an electromagnet ring 136; a limiting guide block 137; a spring limiting end 138; a traction wire 139; an end wall tube 41; a protective wire mesh 42; a lamp placement slot 43; a flaring tube 51; an angle adjustment wheel 52; an adjustment wire 54; an elastic guide rope 53; an air bag connecting tube 61; a syringe connecting tube 62; a guide rod 63; a fixing plate 64; a closing plate 65; and a clamping plate 66. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0034] like Figures 1-10 As shown, the present invention relates to a nasojejunal nutrition tube suitable for placement in laparoscopic surgery, comprising a nutrition tube 1, an air bag 2, a delivery end 3, a positioning end 4, a delivery flare 5, an air bag gas delivery component 6, and a guide wire 7. The delivery end 3 is fixedly connected between the positioning end 4 and the nutrition tube 1, the air bag 2 is arranged on the delivery end 3, the delivery flare 5 is arranged on the nutrition tube 1, the air bag gas delivery component 6 is connected to the air bag 2, the air bag gas delivery component 6 is fixedly connected to the delivery flare 5, the guide wire 7 is detachably connected to the nutrition tube 1, and a feeding The oblique hole and the positioning end 4 are provided with a flashing cold light. The nutrition tube 1 and the delivery end 3 are both made of materials with a certain hardness and flexibility. When in use, the nutrition tube 1 can be inserted through one nostril, and air can be delivered to the airbag 2 through the airbag air delivery component 6. The flashing cold light in the positioning end 4 can be turned off. Under laparoscopy, the airbag 2 can be accurately grasped using laparoscopic non-destructive forceps. The surgeon on the stage cooperates with colleagues under the stage to place the nutrition tube 1 into the ideal position in the distal jejunum (positioned by the airbag 2 and the flashing cold light). After removing the metal guide wire 7, confirm that the position of the nutrition tube 1 is correct again, and the gas in the airbag 2 is completely exhausted. At the same time, the colleagues in the background will properly fix the nutrition tube 1 at the patient's nostrils. After the operation, the nasojejunal nutrition tube can be used for enteral nutrition supply. The nutrition tube 1 can simulate intestinal peristalsis to transport the nutrient solution, effectively preventing high-concentration nutrient solution from clogging the nutrition tube 1. The delivery expansion 5 includes two adjustment wires 54 for controlling the direction of the positioning end 4, and two elastic guide cables 53 both fixed to the positioning end 4. The two adjustment wires 54 and the two elastic guide cables 53 are all slidably connected to the nutrition tube 1 and the delivery end 3;

[0035] The two elastic guide ropes 53 keep the nutrition tube 1 deflected toward the two elastic guide ropes 53 when the nasojejunal nutrition tube is not in use. When in use, the direction is adjusted by the two adjustment wires 54 to adjust the direction of the positioning end 4.

[0036] In further detail, the nutrition tube 1 includes an outer tube wall 11, a bending peristaltic simulation tube 12 and an electromagnet control unit 13. The bending peristaltic simulation tube 12 is arranged on the inner wall of the outer tube wall 11. The electromagnet control unit 13 is fixed to the positioning end 4. The outer tube wall 11, the bending peristaltic simulation tube 12 and the electromagnet control unit 13 can all be bent. The bending peristaltic simulation tube 12 includes a plastic tube wall 121 and a telescopic iron ring 122. The plastic tube wall 121 is fixed with multiple telescopic iron rings 122. The plastic tube wall 121 can be bent freely to ensure that the bending peristaltic simulation tube 12 is not damaged when the outer tube wall 11 is bent. The telescopic iron ring 122 can change the diameter;

[0037] The electromagnet control unit 13 includes an inner wall rubber tube 131, a return spring 132, a limiting track 133, a winding wheel 134, a connecting shaft 135, an electromagnet ring 136, a limiting guide block 137, a spring limiting end 138 and a traction wire 139. The inner wall rubber tube 131 is fixed to the outer tube wall 11, the return spring 132 is sleeved on the limiting track 133, the upper end of the return spring 132 is in contact with the electromagnet ring 136, the bottom of the electromagnet ring 136 is fixed to the limiting guide block 137, and the return spring The bottom of 132 is fixed to the spring limiting end 138, which is fixed to the outer tube wall 11. The spring limiting end 138 is located on the upper side of the feeding inclined hole of the conveying end 3. One end of the traction wire 139 is fixed to the bottom of the limiting guide block 137. The limiting guide block 137 is slidably connected to the limiting track 133. The winding wheel 134 is fixed with a connecting shaft 135, which is rotatably connected to the outer tube wall 11. The traction wire 139 passes through the winding wheel 134. The traction wire 139 is The other end passes through the inner wall rubber tube 131 and is energized by the electromagnet ring 136 to generate magnetism. After the nutrient solution is added, the position of the electromagnet ring 136 generates magnetism, which adsorbs the telescopic iron ring 122, and the diameter of the telescopic iron ring 122 becomes smaller, so that the diameter of the plastic tube wall 121 at the position of the telescopic iron ring 122 becomes smaller. By pulling the traction wire 139, the traction wire 139 pulls the limit guide block 137 under the guidance of the winding wheel 134, so that the electromagnet ring 136 slides on the limited track 133 As the position of the electromagnetic ring 136 changes, the telescopic iron ring 122 at different positions is absorbed and contracted, and the telescopic iron ring 122 moves from the opening of the outer tube wall 11 to the positioning end 4, and the plastic tube wall 121 gradually moves in the shrinking position, producing an effect similar to intestinal peristalsis, effectively preventing the nutrient solution from being blocked due to high concentration, and then discharged from the feeding inclined hole on the conveying end 3. After releasing the traction wire 139, the electromagnetic ring 136 is reset under the elastic force of the reset spring 132.

[0038] To further describe in detail, the positioning end 4 includes an end wall tube 41, a protective steel wire mesh 42 and a lamp placement groove 43. The protective steel wire mesh 42 is fixedly connected to the inside of the end wall tube 41, the end wall tube 41 is fixedly connected to the conveying end 3, the lamp placement groove 43 is used to install lamps, and the lamp placement groove 43 is arranged in the protective steel wire mesh 42. Two adjustment steel wires 54 and two elastic guide ropes 53 are all fixedly connected to the upper end of the end wall tube 41. A flashing cold light lamp is placed inside the lamp placement groove 43. The protective steel wire mesh 42 can protect the flashing cold light lamp to prevent the flashing cold light lamp from being damaged by the clamping end wall tube 41.

[0039] To further elaborate, the conveying flare 5 also includes a flaring cylinder 51 and an angle adjustment wheel 52. The two angle adjustment wheels 52 are both rotatably connected to the flaring cylinder 51, and the flaring cylinder 51 is fixed to the outer tube wall 11. The two adjustment wires 54 are respectively fixed to the two angle adjustment wheels 52, and the two elastic guide ropes 53 are both fixed to the flaring cylinder 51. By rotating the two angle adjustment wheels 52, the adjustment wires 54 connected thereto can be pulled respectively. The adjustment wires 54 are shortened and can pull the end wall cylinder 41 toward the movement, so that the corresponding elastic guide rope 53 on the opposite side is lengthened. The two adjustment wires 54 and the corresponding elastic guide rope 53 on the opposite side can be changed in any direction to achieve the adjustment direction.

[0040] To further elaborate, the two elastic ropes 53 are both made of elastic rubber material, which can generate elastic force after being stretched. When released, the corresponding adjustment wire 54 on the opposite side can pull the end wall tube 41 under the action of elastic force to change the direction.

[0041] In further detail, the airbag gas delivery assembly 6 includes an airbag connecting tube 61 and a syringe connecting tube 62. The airbag connecting tube 61 is detachably connected to the flaring tube 51. The airbag connecting tube 61 is connected to the airbag 2. The syringe connecting tube 62 is fixed to the airbag connecting tube 61. The syringe connecting tube 62 is connected to the injection tube for injecting gas. The gas is guided from the airbag connecting tube 61 to the airbag 2, causing the airbag 2 to expand.

[0042] In further detail, the airbag gas delivery assembly 6 also includes a guide rod 63, a fixed plate 64, a closing plate 65 and a clamping plate 66. Multiple guide rods 63 are fixedly connected to the bag connecting tube 61. Two fixed plates 64 are provided. The two fixed plates 64 are located on the upper and lower sides of the airbag connecting tube 61. Multiple guide rods 63 are fixedly connected to one of the two fixed plates 64. Multiple guide rods 63 are slidingly connected to the other fixed plate 64. The clamping plate 66 is fixed to one of the two fixed plates 64. The closing plate 65 is rotatably connected to the other fixed plate 64. After the gas is injected, the airbag 2 expands. By rotating the closing plate 65 until the clamping plate 66 contacts, and then continuing to move the closing plate 65, the distance between the two fixed plates 64 is shortened, pressing the airbag connecting tube 61 so that the airbag connecting tube 61 is closed to prevent air leakage.

[0043] To further elaborate, the closing plate 65 is made of a hard plastic material, which can ensure the strength of the material and has the characteristic of being able to deform. When the closing plate 65 is pressed onto the card plate 66, the closing plate 65 is deformed, and the closing plate 65 slides on the card plate 66. Under the elastic force of the closing plate 65, it is buckled on the card plate 66. After that, the closing plate 65 can be pressed with one hand, so that the closing plate 65 leaves the card plate 66 to complete the unlocking and deflate the airbag.

[0044] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0045] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A nasojejunal feeding tube suitable for placement during laparoscopic surgery, characterized by: It includes a nutrition tube, an air bag, a delivery end, a positioning end, a delivery flare, an air bag gas delivery component and a guide wire. The delivery end is fixedly connected between the positioning end and the nutrition tube, the air bag is arranged on the delivery end, the delivery flare is arranged on the nutrition tube, the air bag gas delivery component is connected to the air bag, the air bag gas delivery component is fixedly connected to the delivery flare, the guide wire is detachably connected to the nutrition tube, the delivery end is provided with a feeding inclined hole, and the positioning end is provided with a flashing cold light lamp; The delivery expansion port includes two adjustment wires for controlling the orientation of the positioning end, and two elastic guide ropes fixed to the positioning end. The two adjustment wires and the two elastic guide ropes are slidably connected to the nutrition tube and the delivery end. The nutrition tube includes an outer tube wall, a bending peristaltic simulation tube and an electromagnet control part. The bending peristaltic simulation tube is arranged on the inner wall of the outer tube wall. The electromagnet control part is fixed to the positioning end head. The outer tube wall, the bending peristaltic simulation tube and the electromagnet control part can all be bent. The electromagnet control part includes an inner wall rubber tube, a return spring, a limiting track, a winding wheel, a connecting shaft, an electromagnet ring, a limiting guide block, a spring limiting end and a traction steel wire. The inner wall rubber tube is fixedly connected to the outer tube wall, the return spring is sleeved on the limiting track, the upper end of the return spring contacts the electromagnet ring, the bottom of the electromagnet ring is fixedly connected to the limiting guide block, the bottom of the return spring is fixedly connected to the spring limiting end, the spring limiting end is fixedly connected to the outer tube wall, the spring limiting end is located on the upper side of the feeding inclined hole of the conveying end, one end of the traction steel wire is fixedly connected to the bottom of the limiting guide block, the limiting guide block is slidably connected to the limiting track, the winding wheel is fixedly connected to a connecting shaft, the connecting shaft is rotatably connected to the outer tube wall, the traction steel wire passes through the winding wheel, and the other end of the traction steel wire passes through the inner wall rubber tube.

2. A nasojejunal feeding tube suitable for placement during laparoscopic surgery according to claim 1, characterized in that: The bending peristaltic simulation tube comprises a plastic tube wall and a telescopic iron ring, wherein the plastic tube wall is fixedly connected with a plurality of telescopic iron rings.

3. The nasojejunal feeding tube suitable for placement during laparoscopic surgery according to claim 1, characterized in that: The positioning end includes an end wall tube, a protective steel wire mesh and a lamp placement groove. The protective steel wire mesh is fixed to the inside of the end wall tube, the end wall tube is fixed to the conveying end, the lamp placement groove is used to install the lamp, and the lamp placement groove is arranged in the protective steel wire mesh. Two adjustment steel wires and two elastic guide ropes are all fixed to the upper end of the end wall tube.

4. The nasojejunal feeding tube suitable for placement during laparoscopic surgery according to claim 3, characterized in that: The conveying flaring also includes a flaring cylinder and an angle adjustment wheel. The two angle adjustment wheels are both rotatably connected to the flaring cylinder, the flaring cylinder is fixed to the outer tube wall, the two adjustment wires are respectively fixed to the two angle adjustment wheels, and the two elastic guide ropes are both fixed to the flaring cylinder.

5. The nasojejunal nutrition tube suitable for placement during laparoscopic surgery according to claim 4, characterized in that: The two elastic ropes are both made of elastic rubber.

6. The nasojejunal nutrition tube suitable for placement during laparoscopic surgery according to claim 5, characterized in that: The airbag gas delivery assembly includes an airbag connecting tube and a syringe connecting tube. The airbag connecting tube is detachably connected to the flaring tube and communicates with the airbag. The syringe connecting tube is fixed to the airbag connecting tube.

7. The nasojejunal feeding tube suitable for placement during laparoscopic surgery according to claim 6, characterized in that: The airbag air delivery assembly also includes guide rods, a fixing plate, a closing plate and a clamping plate. Multiple guide rods are fixedly connected to the bag connecting tube. Two fixing plates are provided, and the two fixing plates are located on the upper and lower sides of the airbag connecting tube. Multiple guide rods are fixedly connected to one of the two fixing plates, and multiple guide rods are slidably connected to the other fixing plate. The clamping plate is fixed to one of the two fixing plates, and the closing plate is rotatably connected to the other fixing plate.

8. The nasojejunal nutrition tube suitable for placement during laparoscopic surgery according to claim 7, characterized in that: The closing plate is made of hard plastic material.

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