Multi-opening stomach tube and matching device thereof

Abstract

The invention belongs to the technical field of medical instruments, and discloses a multi-hole stomach tube and a matching device thereof.The multi-hole stomach tube comprises a tube body, a guide wire and a positioning assembly, a main hole is formed in the end of an imbedding section of the tube body, and side holes are formed in the peripheral side of the tail end of the imbedding section of the tube body; passivation ends are arranged at the two ends of the guide wire, reference marks are evenly arranged on the outer tube section of the guide wire, positioning marks are evenly arranged on the outer tube section of the guide wire, and implantation marks are evenly arranged on the implantation section of the guide wire. The positioning assembly comprises a positioning block, a solvent dropping bottle, a main magnetic block and an auxiliary magnetic block, adhesive tapes are arranged on the two sides of the positioning block, the solvent dropping bottle and the main magnetic block are arranged in the positioning block in a penetrating mode, and the main magnetic block and the auxiliary magnetic block on the guide wire are magnetically attracted. Establishing a guide path for the guide wire tube body; the main magnetic block is tightly attached to the tube body to attract the auxiliary magnetic block, a guide wire guiding path is fixed, whether the tube is arranged in place or not is judged by observing the positions of all the marks, a traditional blind insertion tube arrangement mode is replaced, tube replacement is more convenient, and dependence on professional experience is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a multi-hole stomach tube and a matching device thereof. Background Art

[0002] Indwelling a gastric tube is a basic nursing operation technique commonly used in clinical practice. Nasogastric tube feeding provides nutrition for comatose patients or patients who cannot eat orally. Traditional gastric tubes are mostly side-opened or front-end closed. For example, the side-opening design of ordinary gastric tubes is prone to getting stuck in the fibrotic and narrow anatomical environment of the pharynx of nasopharyngeal carcinoma patients, resulting in a high tube placement failure rate. In addition, the traditional tube replacement operation usually involves removing the old tube first and then blindly inserting a new tube. For nasopharyngeal carcinoma patients, the success rate of secondary tube placement is only 53% due to pharyngeal fibrosis. Although guidewires can now be used for assisted tube placement, the current guidewire structure is relatively simple and has a single function. It cannot provide deep guidance for tube replacement, and it is difficult for non-medical workers to operate independently. In addition, during the tube replacement process, the guidewire is affected by the gastric tube and is prone to displacement and poor stability, resulting in inadequate or failed tube placement. Summary of the Invention

[0003] The present invention aims to provide a multi-hole gastric tube and its supporting device to solve the problem that gastric tube replacement is inconvenient and requires high professionalism at the current stage.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] The tube body is provided with a plurality of side holes on the circumference of the tail end of the insertion section of the tube body, and the side holes form a certain angle with the tube body channel; both ends of the guide wire are provided with a blunt end, the guide wire is longer than the tube body and is adapted to the tube body, the outer tube section of the guide wire is evenly provided with a plurality of groups of reference marks, the outer tube section of the guide wire is evenly provided with a plurality of groups of positioning marks, and the guide wire insertion section is evenly provided with a plurality of groups of insertion marks; the positioning assembly includes a positioning block, a solvent dripping bottle, a main magnetic block and an auxiliary magnetic block, adhesive tapes are provided on both sides of the positioning block, the solvent dripping bottle and the main magnetic block are both inserted into the positioning block, the solvent dripping bottle is located on one side of the main magnetic block, the bottom end of the main magnetic block is flat, the main magnetic block and the auxiliary magnetic block are magnetically attracted to each other, and the auxiliary magnetic block is provided on the guide wire and is located at the intersection of the outer tube section and the insertion section on the guide wire.

[0006] Furthermore, a scraping assembly is provided on the positioning block, and the scraping assembly includes an adjusting bolt, an extrusion plate and a movable frame. The adjusting bolt is passed through the top surface of the positioning block, and the bottom end of the adjusting bolt contacts the top surface of the extrusion plate. The bottom surface of the extrusion plate is connected to the compression spring. The compression spring and the extrusion plate are both sleeved on the top of the movable frame. The movable frame is slidably set in the cavity in the positioning block, and an arc plate is provided after the bottom end of the movable frame passes through the positioning block.

[0007] Furthermore, the adjusting bolt and the compression spring are both made of non-metallic materials, the arc-shaped plate is adapted to the outer surface of the tube body, and an adjusting air valve is provided on the top of the solvent dropper bottle.

[0008] Furthermore, a bonding sheet is provided on the positioning block, and adhesive tapes are provided on both sides of the bonding sheet.

[0009] Furthermore, the end of the insertion section of the tube body is tapered and its edge is provided with a rounded transition, the edges of the main hole and the side holes are provided with a rounded transition, and scale lines are printed on the surface of the tube body.

[0010] Furthermore, the auxiliary magnetic block is covered with medical silica gel, and the surface of the guide wire is coated with a polyurea coating.

[0011] The principle and beneficial effects of the technical solution are:

[0012] The present invention provides a multi-hole gastric tube and its supporting device. Before changing the tube, the guide wire is inserted into the gastric tube body on the patient. When all the insertion marks have entered the patient's nasal cavity, the positioning mark is just located in the tube body outside the patient's body, and the reference mark is just flush with the connector at the end of the tube body. The guide wire is positioned by multiple sets of marks, which makes it convenient for the operator to understand whether the guide wire is inserted in place. After the guide wire is inserted in place, the secondary magnetic block on it is just located in front of the patient's nostril. The main magnetic block is pressed against the tube body to attract the secondary magnetic block, and the positioning block is fixed to one side of the nostril with adhesive tape, so that the guide wire is adsorbed and positioned to avoid it Move, the lubricating liquid in the solvent dropper bottle drops on the outer wall of the tube body, reducing the friction between the main magnetic block and the tube body, so that the tube body can move relative to the main magnetic block and the auxiliary magnetic block, and slowly pull the tube body out of the patient's body. At this time, the guide wire is still in the patient's body, and the new tube body is put on the guide wire through the main hole. The guiding path established by the guide wire makes it convenient to insert the new tube into the patient's body. By observing the position of each mark, it can be judged whether the tube is in place, replacing the traditional blind insertion method, making tube replacement more convenient and effective, reducing dependence on professional experience, and making it possible to replace the tube independently in home care. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of a multi-hole gastric tube and its supporting device according to the present invention;

[0014] Figure 2 This is a schematic diagram of the assembly structure of a multi-hole gastric tube and its supporting device of the present invention;

[0015] Figure 3 for Figure 2 A magnified schematic diagram of point A in the middle;

[0016] Figure 4 This is a cross-sectional view of a multi-hole gastric tube and its supporting device according to the present invention;

[0017] Figure 5 for Figure 4 A magnified schematic diagram of point B in the middle;

[0018] Figure 6 for Figure 4 The enlarged schematic diagram of point C in the middle;

[0019] The names of the corresponding marks in the accompanying drawings are: 1. tube body; 2. guide wire; 3. positioning assembly; 4. connector; 5. main hole; 6. side hole; 7. scale line; 8. blunt end; 9. reference mark; 10. positioning mark; 11. insertion mark; 12. adhesive tape; 13. positioning block; 14. solvent dropper bottle; 15. main magnetic block; 16. adjusting bolt; 17. extrusion plate; 18. compression spring; 19. movable frame; 20. curved plate; 21. auxiliary magnetic block; 22. bonding sheet. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:

[0021] like Figures 1-6As shown, a multi-hole gastric tube and its supporting device include a tube body 1, a guide wire 2 and a positioning component 3. The end of the external section of the tube body 1 is connected to the connector 4. The end of the insertion section of the tube body 1 is provided with a main hole 5. The inner diameter of the main hole 5 is larger than the outer diameter of the blunt end 8 on the guide wire 2, so that the guide wire 2 can smoothly pass through the outside of the tube body 1, which is convenient for establishing a guide path. A plurality of side holes 6 are provided on the circumference of the tail end of the insertion section of the tube body 1. The side holes 6 and the channel of the tube body 1 form a certain angle, and the angle is 30±5°, which can reduce the friction between the guide wire 2 and the edge of the side hole 6; both ends of the guide wire 2 are provided with blunt ends 8, which can reduce the friction between the end of the guide wire 2 and the inner wall of the tube body 1, reducing the impact on the tube body 1 The loss is reduced, and the weight of the end of the guide wire 2 is appropriately increased to facilitate the insertion of the guide wire 2 into the tube body 1; the length of the guide wire 2 is longer than the tube body 1 and is adapted to the tube body 1. The outer section of the guide wire 2 is evenly provided with multiple groups of reference marks 9, and the reference marks 9 can be black as a warning color. The outer section of the guide wire 2 is evenly provided with multiple groups of positioning marks 10, and the positioning marks 10 can be blue as a warning color. The insertion section of the guide wire 2 is evenly provided with multiple groups of insertion marks 11, and the insertion mark 11 can be red as a warning color, so that the guide wire 2 as a whole forms a distinct three-color guide wire 2, and the traditional scale mark is divided into three-segment marks by three colors, so that the operator does not need to determine the scale lines one by one, The warning and reference effects are better. At the same time, each mark can be attached by PTE heat shrink process, which can better adhere to the surface of the guide wire 2 and is not easy to fall off. After the guide wire 2 passes through the tube body 1 and is placed in place, the insertion section of the guide wire 2 corresponds to the tube section of the tube body 1 inserted into the patient's nasal cavity to the stomach, the extracorporeal section of the guide wire 2 corresponds to the extracorporeal section of the tube body 1 located outside the patient's nasal cavity, and the extracorporeal section of the guide wire 2 is located outside the tube body 1. Through three-stage positioning, a reference is provided for the operator to facilitate the tube replacement operation and avoid improper tube placement. The positioning component 3 includes a positioning block 13, a solvent dropper 14, a main magnetic block 15 and an auxiliary magnetic block 21. Adhesive tape 12 is provided on both sides of the positioning block 13. The solvent dropper bottle 14 The bottle 14 and the main magnetic block 15 are both inserted into the positioning block 13, and the solvent dripping bottle 14 is located on one side of the main magnetic block 15. Medical-grade lubricating fluid is stored in the solvent dripping bottle 14. The bottom end of the main magnetic block 15 is flat. The flat bottom setting makes the main magnetic block 15 have a smaller contact area with the outer wall of the tube body 1, which can reduce friction. The main magnetic block 15 and the auxiliary magnetic block 21 are magnetically attracted to each other. When the two are attracted to each other, they are respectively attached to the outer wall and inner wall of the tube body 1. The magnetic attraction force can ensure that the two remain in the same position and will not over-clamp the tube body 1, so that the tube body 1 can move relative to the main magnetic block 15 and the auxiliary magnetic block 21. The auxiliary magnetic block 21 is set on the guide wire 2 and is located at the intersection of the outer section of the tube and the insertion section on the guide wire 2.

[0022] When the patient needs to replace the new gastric tube, the operator first uses a syringe to slowly inject 3-5 ml of medical paraffin oil into the tube body 1 on the patient, ensuring that the paraffin oil fully lubricates the inner wall of the old tube body 1 and reduces the friction resistance between the guide wire 2 and the inner wall of the old tube body 1. Then, use medical paraffin oil to lubricate the surface of the guide wire 2. After lubrication, insert the insertion section of the guide wire 2 into the old tube body 1 and slowly push it along the diameter of the old tube body 1 into the patient's body. When pushing the guide wire 2, the position of each group of marks must be strictly observed. When all the insertion marks 11 on the guide wire 2 are completely inserted into the patient's nasal cavity, the original insertion depth of the old tube body 1 is indicated, and the first reference mark 9 is flush with the end face of the connector 4 on the old tube body 1, indicating that the guide wire 2 is in place.

[0023] At this time, the auxiliary magnetic block 21 on the guide wire 2 is located outside the patient's nostril, and the positioning block 13 is attached to the outer wall of the old tube body 1, so that the main magnetic block 15 and the auxiliary magnetic block 21 are attracted to each other and attached to the old tube body 1, and then the positioning block 13 is fixed to the patient's face by the adhesive tape 12, and the position of the auxiliary magnetic block 21 is limited by magnetic attraction, thereby limiting the position of the guide wire 2 to prevent it from moving, thereby establishing a stable guiding path, and preventing the guide wire 2 from being affected by the tube body 1 and displacing when the tube body 1 is subsequently withdrawn or inserted, resulting in the guide being not in place or being inserted too deeply; then open the solvent dropper bottle 14, and drip an appropriate amount of solvent onto the outer wall of the old tube body 1. Medical-grade lubricant is used to reduce the frictional resistance between the tube body 1 and the main magnetic block 15, so that the tube body 1 can more easily move relative to the main magnetic block 15 and the auxiliary magnetic block 21. The operator gently pulls the old tube body 1 outward along the guide wire 2 at a uniform speed until the old tube body 1 is completely pulled out of the patient's nostril. After the end of the old tube body 1 passes over the main magnetic block 15 and the auxiliary magnetic block 21, the old tube body 1 is completely separated from the two. At this time, the main magnetic block 15 and the auxiliary magnetic block 21 are in contact with each other, continuing to fix the guide wire 2 to prevent it from moving. There is no need to use a separate clamp to clamp and fix the guide wire 2, and there is no need to fix the distal end of the guide wire 2.

[0024] After removing the old tube body 1, take the new tube body 1 and lubricate it in the same way. After lubrication, insert the new tube body 1 into the tail end of the guide wire 2 through the main hole 5, and slowly push the new tube body 1 to move it along the path of the guide wire 2. When the end of the new tube body 1 moves to the position of the main magnetic block 15 and the auxiliary magnetic block 21 in front of the patient's nostril, the operator only needs to hold the positioning block 13 and slightly lift the main magnetic block 15 so that the gap between the main magnetic block 15 and the auxiliary magnetic block 21 allows the end of the new tube body 1 to pass through. When the end passes, loosen the Open the main magnetic block 15 and the positioning block 13. The main magnetic block 15 and the auxiliary magnetic block 21 are always attracted to each other and respectively adhere to the outer wall and inner wall of the new tube body 1, always fixing the position of the guide wire 2. If excessive displacement occurs, then open the solvent dropper 14 to drip an appropriate amount of medical lubricant onto the outer wall of the new tube body 1 at a uniform speed to reduce the friction between the tube body 1 and the magnetic blocks. The edges of the two sets of magnetic blocks are provided with rounded transitions to reduce friction, making it easier for the operator to slowly push the new tube body 1 and place it into the patient's body along the guide wire 2.

[0025] During the tube pushing process, observe the positions of each mark and the tube body 1, so that the insertion mark 11 is located in the patient's nasal cavity throughout the process, and the positioning mark 10 is located outside the patient's nasal cavity. When the new tube body 1 is pushed to the end of the connecting head 4 and the first reference mark 9 on the outer section of the tube on the guide wire 2 is aligned, it means that the tube insertion depth is consistent with the original insertion depth. At this time, the tube is in place. The operator only needs to remove the positioning block 13, release the position restriction of the guide wire 2, and then slowly remove the guide wire 2, clean the paraffin oil and secretions remaining in the patient's nasal cavity and face, and the new gastric tube replacement can be completed. A guiding path is established through the guide wire 2, which improves the success rate of tube replacement, makes tube replacement more convenient, reduces dependence on professional technology, and makes it possible for family members to change tubes independently during home care after training.

[0026] In this embodiment, a scraping assembly is provided on the positioning block 13, and the scraping assembly includes an adjusting bolt 16, an extrusion plate 17, and a movable frame 19. The adjusting bolt 16 is inserted into the top surface of the positioning block 13, and the bottom end of the adjusting bolt 16 contacts the top surface of the extrusion plate 17. The bottom surface of the extrusion plate 17 is connected to a compression spring 18. The compression spring 18 and the extrusion plate 17 are both sleeved on the top of the movable frame 19. The movable frame 19 is slidably arranged in a cavity within the positioning block 13. An arc plate 20 is provided after the bottom end of the movable frame 19 passes through the positioning block 13. By rotating the adjusting bolt 16, the position of the extrusion plate 17 can be changed, and the force with which the compression spring 18 presses the movable frame 19 can be adjusted, thereby adjusting the force with which the arc plate 20 presses against the outer wall of the tube body 1 to prevent it from pressing too tightly against the tube body 1 and affecting its movement. The arc plate 20 can be used to scrape off excess medical lubricant on the tube body 1 to prevent it from excessively entering the patient's nasal cavity and body and causing discomfort to the patient.

[0027] In this embodiment, the adjustment bolt 16 and compression spring 18 are both made of non-metallic materials, the curved plate 20 conforms to the outer surface of the tube body 1, and an adjustable air valve is installed at the top of the solvent dripping bottle 14. The curvature of the curved plate 20 conforms to the outer surface of the tube body 1, ensuring a better fit and a more effective scraping effect. The non-metallic adjustment bolt 16 and compression spring 18 reduce the influence of the main magnetic block 15 on them. The air valve can be adjusted to control the dripping rate of the medical lubricant in the solvent dripping bottle 14, allowing the device to be adjusted according to actual conditions.

[0028] In this embodiment, a fitting sheet 22 is provided on the positioning block 13, and adhesive tapes 12 are provided on both sides of the fitting sheet 22. The fitting sheet 22 is made of skin-friendly material, which can increase the comfort of the patient when wearing it.

[0029] In this embodiment, the insertion end of the tube body 1 is tapered with rounded edges. Both the main hole 5 and the side hole 6 have rounded edges, and scale lines 7 are printed on the surface of the tube body 1. The tapered and rounded end allows the tube body 1 to better enter the patient's body, reducing damage to the patient's pharynx, esophagus, and other areas. Furthermore, the rounded edges of the main hole 5 and the side hole 6 reduce friction with the guidewire 2, making the establishment of the guide path and the replacement of the tube smoother. The scale lines 7 assist the operator in positioning and improve the accuracy of tube placement.

[0030] In this embodiment, the secondary magnetic block 21 is covered with medical silicone, and the surface of the guidewire 2 is coated with a polyurea coating. The medical silicone seals the secondary magnetic block 21, protecting it from bodily fluids and extending its service life. The polyurea coating has low friction properties, ensuring smooth passage of the guidewire 2 through the gastric tube, pharynx, and esophagus while reducing the risk of mucosal damage.

[0031] The above is only an embodiment of the present invention, and common knowledge such as the specific technical solutions or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the description can be used to interpret the content of the claims.

Claims

1. A multi-hole gastric tube and its supporting device, characterized by: The invention comprises a tube body (1), a guide wire (2) and a positioning assembly (3), wherein the end of the external section of the tube body (1) is connected to a connector (4), a main hole (5) is provided at the end of the insertion section of the tube body (1), and multiple groups of side holes (6) are provided on the peripheral side of the tail end of the insertion section of the tube body (1), wherein the side holes (6) and the channel of the tube body (1) form a certain angle; both ends of the guide wire (2) are provided with blunted ends (8), the guide wire (2) is longer than the tube body (1) and is adapted to the tube body (1), the external section of the guide wire (2) is uniformly provided with multiple groups of reference marks (9), the external section of the guide wire (2) is uniformly provided with multiple groups of positioning marks (10), and the guide wire (2) The insertion section is evenly provided with a plurality of groups of insertion marks (11); the positioning component (3) comprises a positioning block (13), a solvent dripping bottle (14), a main magnetic block (15) and a secondary magnetic block (21); adhesive tapes (12) are provided on both sides of the positioning block (13); the solvent dripping bottle (14) and the main magnetic block (15) are both inserted into the positioning block (13); the solvent dripping bottle (14) is located on one side of the main magnetic block (15); the bottom end of the main magnetic block (15) is flat; the main magnetic block (15) and the secondary magnetic block (21) are magnetically attracted to each other; the secondary magnetic block (21) is provided on the guide wire (2) and is located at the intersection of the outer tube section and the insertion section on the guide wire (2).

2. A multi-hole gastric tube and its supporting device according to claim 1, characterized in that: The positioning block (13) is provided with a scraping assembly, which includes an adjusting bolt (16), an extrusion plate (17) and a movable frame (19). The adjusting bolt (16) is passed through the top surface of the positioning block (13), the bottom end of the adjusting bolt (16) contacts the top surface of the extrusion plate (17), the bottom surface of the extrusion plate (17) is connected to a compression spring (18), the compression spring (18) and the extrusion plate (17) are both sleeved on the top of the movable frame (19), the movable frame (19) is slidably arranged in the cavity in the positioning block (13), and the bottom end of the movable frame (19) is provided with an arc plate (20) after passing through the positioning block (13).

3. A multi-hole gastric tube and its supporting device according to claim 2, characterized in that: The adjusting bolt (16) and the compression spring (18) are both made of non-metallic materials, the arc-shaped plate (20) is adapted to the outer surface of the tube body (1), and a regulating air valve is provided at the top of the solvent dropper bottle (14).

4. A multi-hole gastric tube and its supporting device according to claim 2, characterized in that: The positioning block (13) is provided with a bonding sheet (22), and both sides of the bonding sheet (22) are provided with the adhesive tape (12).

5. The multi-hole stomach tube and its supporting device according to claim 1, characterized in that: The end of the insertion section of the tube body (1) is tapered and has a rounded transition at its edge. The edges of the main hole (5) and the side hole (6) are both provided with rounded transitions. The surface of the tube body (1) is printed with scale lines (7).

6. The multi-hole stomach tube and its supporting device according to claim 1, characterized in that: The auxiliary magnetic block (21) is covered with medical silica gel, and the surface of the guide wire (2) is coated with a polyurea coating.

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