Multifunctional nasogastric tube

Abstract

The utility model discloses a multifunctional nasogastric tube, which comprises a tube body, a tube body fixing part, a corrugated connecting tube and a connector, the tube body is inserted in the tube body fixing part and is fixed in a nasal cavity through the tube body fixing part, the position of the tube body fixing part on the tube body is adjustable, the corrugated connecting tube is connected with the end part of the tube body, the corrugated connecting tube can be contracted into the nasal cavity, and the connector is connected with the corrugated connecting tube. The two ends of the connector are connected with the feeding pipe and the corrugated connecting pipe respectively, and after the connector and the corrugated connecting pipe are not connected in an inserted mode, the food injection opening in the connector is automatically closed. The nasogastric tube has the advantages that the nasogastric tube is stably fixed in the nasal cavity through the fixing balloon and the nose fixing assembly, the corrugated connecting tube is connected with the nasogastric tube in the nasal cavity, the corrugated connecting tube is pulled out of the nasal cavity during feeding, and the corrugated connecting tube is shrunk into the nasal cavity after feeding is finished; the feeding pipe provided with the connector is connected with the corrugated connecting pipe, after the feeding pipe and the nasogastric pipe are disconnected, the automatic sealing assembly automatically seals the connector of the connector, and nutrient solution leakage is prevented.

Description

Technical Field

[0001] The utility model specifically relates to a multifunctional nasogastric tube. Background Art

[0002] As a common medical auxiliary tool, the nasogastric tube is widely used. The nasogastric tube is inserted through the nostrils and reaches the stomach through the pharynx and esophagus. When the patient has difficulty eating, the nasogastric tube can be used to drip nutrient solution into the stomach to provide the patient with necessary food and nutrition.

[0003] However, the existing nasogastric tube has some obvious disadvantages during use. First, the existing nasogastric tube is generally fixed on the patient's face with tape, which is easy to cause discomfort to the patient's facial skin. After the existing nasogastric tube is fixed, a long section is exposed outside the nasal cavity. At the same time, due to certain discomfort after using the nasogastric tube, the patient will pull out the tube in an unconscious state, which is easy to cause the nasogastric tube to fall off accidentally, which not only increases the patient's pain, but also may threaten the patient's life safety; secondly, when feeding and dripping nutrient solution, the feeding tube to be dripped is connected to the nasogastric tube. In order to prevent the patient from pulling out the nasogastric tube when the tube is pulled out unconsciously, the feeding tube and the nasogastric tube are loosely connected. When the patient pulls out the tube unconsciously, the feeding tube and the nasogastric tube will be disconnected at the connection between the feeding tube and the nasogastric tube to prevent the nasogastric tube from being pulled out. However, after the feeding tube and the nasogastric tube are disconnected, the feeding tube often cannot stop the dripping of the nutrient solution in time, which will cause the nutrient solution to leak, and it may also flow into the patient's nasal cavity or oral cavity while contaminating the bed, which is easy to choke the patient and cause serious medical accidents.

[0004] In Chinese patent: 202122896436.1, the name is: An adjustable telescopic gastric tube, which records that it includes a tube body, the left end of the gastric tube body is provided with a side hole, the right end of the gastric tube body is provided with an annular placement groove, the annular placement groove is connected with the interior of the gastric tube body, a telescopic tube is inserted into the interior of the gastric tube body, the telescopic tube is fixedly installed inside the annular placement groove, and the interior of the telescopic tube is connected with the gastric tube body, the end of the telescopic tube is fixedly installed with a connecting tube, and the outer side wall of the connecting tube is fixedly installed with an anti-dropping tube assembly.

[0005] As shown in the accompanying drawings of Patent: 202122896436.1, this patent mainly makes the gastric tube into a retractable and adjustable form to solve the problem of the excessive length of the tube body left outside after the gastric tube is inserted. In theory, it can solve the problem of the excessive length of the tube body left outside, but if the tube body left outside is too short, there will be the problem of inconvenience in connecting the feeding tube. At the same time, after the feeding tube and the nasogastric tube are disconnected in this patent, the feeding tube cannot stop the drip of the nutrient solution in time, which may easily cause leakage of the nutrient solution and medical accidents. Utility Model Content

[0006] The technical problem to be solved by the utility model is that the length of the tube body left outside after the prior nasogastric tube is inserted is inappropriate and inconvenient to use, and the feeding tube cannot stop the drip of nutrient solution in time after the feeding tube and the nasogastric tube are disconnected.

[0007] In view of the above technical problems, a multifunctional nasogastric tube is proposed; the multifunctional nasogastric tube is realized by the following technical scheme: a multifunctional nasogastric tube comprises a tube body, a tube body fixing part for fixing the tube body, a corrugated connecting tube and a connecting head for connecting the tube body with an external feeding tube, the tube body is inserted into the tube body fixing part, and is fixed in the patient's nasal cavity through the tube body fixing part, the tube body fixing part is detachably arranged on the tube body, and the position of the tube body fixing part on the tube body is adjustable, the corrugated connecting tube is detachably connected to the end of the tube body, the corrugated connecting tube can be retracted into the nasal cavity, one end of the connecting head is connected to the feeding tube arranged in the outside, and the other end is detachably plugged with the corrugated connecting tube, and after the connecting head and the corrugated connecting tube are unplugged, the feeding port on the connecting head is automatically closed.

[0008] In the utility model, the nasogastric tube is stably fixed in the nasal cavity of the patient by using the fixing balloon in the tube fixing part and the nasal fixing assembly, and the tube body outside the nasal cavity is removed, and the corrugated connecting tube is connected to the nasogastric tube port in the nasal cavity. The corrugated connecting tube is pulled out from the nasal cavity during feeding, and the corrugated connecting tube is retracted into the nasal cavity after feeding, thereby solving the problem that the nasogastric tube is easy to be pulled out due to the excessively long tube body outside the nasal cavity, and also solving the problem that the excessively short tube body outside the nasal cavity is inconvenient for feeding.

[0009] A feeding tube equipped with a connector is connected to the corrugated connecting tube. During feeding, an unlocking plug on the corrugated connecting tube unlocks the automatic sealing component on the connecting head to drip the nutrient solution. When the feeding tube and the nasogastric tube are disconnected, the automatic sealing component on the connecting head automatically seals the interface of the connecting head to prevent leakage of the nutrient solution.

[0010] Preferably, the tube body fixing portion includes an inflatable fixing balloon fixed in the middle of the tube body and a nasal fixing component arranged at the outer end of the tube body to fix the tube body in the patient's nasal cavity. The fixing position of the nasal fixing component on the tube body is adjustable through a nasal unlocking component. The setting of the fixing balloon facilitates fixing one end of the tube body at the cardia, thereby improving the stability of the fixation.

[0011] Preferably, the nasal fixing assembly comprises a fixing card and a tube body fixing ring, wherein the fixing card is clamped at the nasal septum of the patient, the tube body fixing ring is sleeved on one end of the outside of the tube body, and the tube body fixing ring and the fixing card are connected by a connecting strip; a limiting slide groove is arranged radially along the tube body fixing ring in the tube body fixing ring, and a limiting slider is arranged in the limiting slide groove, and the limiting slider slides radially along the tube body fixing ring in the limiting slide groove and contacts the outer wall of the tube body inserted in the tube body fixing ring to fix the tube body fixing ring on the tube body. The arrangement of the nasal fixing assembly facilitates fixing the other end of the tube body in the nasal cavity of the patient, thereby improving the stability of the fixation.

[0012] Preferably, the nose unlocking assembly includes an unlocking button, an unlocking strip and a mounting ring. The unlocking button is arranged on a side of the mounting ring. One end of the unlocking strip is arranged on the mounting ring, and the other end is in movably contact with a limiting slider in the fixing ring of the tube body. Pressing the unlocking button can drive the limiting slider to retract into the limiting slide groove. Such an arrangement facilitates the connection between the fixing part of the tube body and the tube body, and is easy to use.

[0013] Preferably, the limiting sliding grooves and the limiting sliding blocks are arranged in a plurality of groups along the radial direction of the tube body fixing ring in the tube body fixing ring, and such an arrangement improves the stability of the connection between the tube body fixing part and the tube body.

[0014] Preferably, the technical solution of the utility model comprises a bellows connecting tube including an unlocking plug, a connecting plug and a bellows fixing assembly; one end of the bellows connecting tube is connected to the connector via the unlocking plug, and the other end is inserted into the tube body via the connecting plug and connected to one end outside the tube body; the bellows fixing assembly comprises a positioning anchor arranged on the outside of the connecting plug, and the positioning anchor cooperates with a group of positioning grooves fixed at one end outside the tube body to fix the bellows connecting tube on the tube body. Such an arrangement facilitates the connection of the bellows connecting tube to the tube body and is easy to use.

[0015] In the preferred embodiment of the technical solution of the utility model, a plurality of positioning anchors are arranged on the connecting pipe along the radial direction of the connecting pipe; a plurality of positioning grooves are arranged in the axial direction of the pipe body. Such an arrangement facilitates the connection between the corrugated connecting pipe and the pipe body and is easy to use.

[0016] Preferably, the connecting head comprises a connecting tube and an automatic sealing component, wherein the automatic sealing component is arranged in the connecting tube to seal the connecting tube, and the automatic sealing component comprises a sealing sheet, which is hinged in the connecting tube through a torsion spring, and is stored in a sealing sheet placement groove in the connecting tube after being unfolded. The arrangement of the automatic sealing component facilitates sealing of the connecting head, and when the feeding tube and the nasogastric tube are disconnected, the automatic sealing component automatically seals the connecting head to effectively prevent leakage of the nutrient solution.

[0017] In a preferred embodiment of the technical solution of the utility model, a plurality of sealing sheets are hinged on the connecting pipe. Such an arrangement facilitates the sealing of the interface of the connecting head and ensures the sealing performance of the connecting head.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The technical solution of the utility model utilizes the fixing balloon in the tube body fixing part and the nasal fixing component to stably fix the nasogastric tube in the patient's nasal cavity, removes the tube body outside the nasal cavity, and utilizes the corrugated connecting tube to connect with the nasogastric tube port in the nasal cavity. When feeding, the corrugated connecting tube is pulled out from the nasal cavity, and after feeding, the corrugated connecting tube is retracted into the nasal cavity, thereby solving the problem that the nasogastric tube is easy to be pulled out due to the long tube body outside, and also solving the problem that the tube body outside is too short and inconvenient for feeding.

[0020] A feeding tube equipped with a connector is connected to the corrugated connecting tube. During feeding, an unlocking plug on the corrugated connecting tube unlocks the automatic sealing component on the connecting head to drip the nutrient solution. When the feeding tube and the nasogastric tube are disconnected, the automatic sealing component on the connecting head automatically seals the interface of the connecting head to prevent leakage of the nutrient solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional schematic diagram of the utility model (excluding the connector);

[0022] Figure 2 is a three-dimensional schematic diagram of the nose fixing assembly;

[0023] Figure 3 It is a partial cross-sectional view of the nose fixing assembly;

[0024] Figure 4 Schematic diagram of the nose unlocking component

[0025] Figure 5 It is a partial cross-sectional view of the fixing part of the tube body;

[0026] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0027] Figure 7 It is a three-dimensional schematic diagram of the limit slider;

[0028] Figure 8 It is a partial cross-sectional view of the corrugated connecting pipe;

[0029] Fig. 9 is a three-dimensional schematic diagram of the connector;

[0030] Fig.10 This is a partial cross-sectional view of the connector (after the sealing sheet is unfolded);

[0031] Fig.11 It is a partial cross-sectional view of the connector (after the sealing sheet is closed);

[0032] Fig.12 for Fig.11 Enlarged view of point B in the middle;

[0033] Fig.13 This is a partial cross-sectional view of the utility model (the connector is connected to the corrugated connecting pipe);

[0034] Fig.14 for Fig.13 Enlarged view of point C in the middle;

[0035] Fig.15 for Fig.13 Enlarged view of point D in the middle;

[0036] Description of reference numerals: 1-tube body, 11-positioning groove, 2-tube body fixing part, 3-fixed balloon, 31-air guide tube, 32-air guide strip, 4-nose fixing assembly, 41-fixing card, 42-connecting strip, 43-tube body fixing ring, 44-limiting slider, 45-limiting slide groove, 46-anti-slip ring, 47-unlocking block, 48-limiting contact, 49-limiting spring, 5-nose unlocking assembly, 51-unlocking button Button, 52-unlocking strip, 53-mounting ring, 54-unlocking spring, 6-corrugated connecting pipe, 61-unlocking insert, 62-connecting insert, 63-bellows fixing assembly, 64-limiting ring, 65-sealing cover, 66-positioning anchor, 7-connecting head, 71-tightening nut, 72-connecting pipe, 73-automatic sealing assembly, 74-sealing plate, 75-cylindrical hinge, 76-sealing plate placement groove, 77-torsion spring. DETAILED DESCRIPTION

[0037] The following will be combined with the attached embodiment of the present utility model Figure 1-15 , the technical solutions in the embodiments of the utility model are described in detail. Example

[0038] like Figure 1 , 13 As shown in 14, a multifunctional nasogastric tube includes a tube body 1, a tube body fixing portion 2, a corrugated connecting tube 6 and a connecting head 7. The tube body 1 is fixed to the patient's nasal cavity through the tube body fixing portion 2, and the connecting head 7, one end of which is connected to the feeding tube, is detachably connected to one end of the corrugated connecting tube 6, and the other end of the corrugated connecting tube 6 is connected to the tube body 1.

[0039] The tube body 1 is a hollow flexible tube with a circular cross-section. One end of the tube body 1 is open and the other end is closed. In order to facilitate the dripping of nutrient solution, a drip port connected to the tube body 1 is opened on the side wall of the tube body 1 near the closed end. The nutrient solution entering the tube body 1 flows out through the drip port.

[0040] The material of the tube body 1 is the same as that of existing nasogastric tubes, and is made of medical plastic or silicone that is suitable for human use.

[0041] In order to facilitate the connection between the corrugated connecting tube 6 and the open end of the tube body 1, a wedge-shaped positioning groove 11 is concavely arranged on the inner wall of the open end of the tube body 1. Six positioning grooves 11 are evenly arranged at the open end of the tube body 1 within a radial range of 360° along the tube body 1. The six positioning grooves 11 within this radial range are defined as a group. In order to improve the convenience of use and facilitate the adjustment of the length of the tube body 1 remaining outside after the tube body 1 is inserted, multiple groups of positioning grooves 11 are arranged on the tube body 1 at intervals along the extension direction of the tube body 1.

[0042] like Figure 1 , 13 As shown in Figure 15, the tube body fixing part 2 includes a fixing balloon 3, a nose fixing component 4 and a nose unlocking component 5. The fixing balloon 3 is fixed at the middle part of the tube body 1 near the closed end. The nose fixing component 4 is connected to the tube body 1 and is arranged at the open end of the tube body 1. One end of the nose fixing component 4 is connected to the tube body 1 and the other end is fixed to the nasal septum on the patient's nasal cavity to fix the tube body 1. The nose unlocking component 5 is arranged at the nose fixing component 4 to adjust the fixed position of the nose fixing component 4 on the tube body 1.

[0043] The fixed balloon 3 is an inflatable balloon, which is fixed on the outer wall of the tube body 1 near the sealed end of the tube body 1. An air guide tube 31 connected to the outside is arranged in the fixed balloon 3. By inflating the air guide tube 31, the fixed balloon 3 can be driven to expand. In order to facilitate the inflation of the fixed balloon 3, the air guide tube 31 extends through the inner wall of the tube body 1 to the open end of the tube body 1.

[0044] Regarding the position of the fixing balloon 3, after the tube body 1 is inserted, the fixing balloon 3 on the tube body 1 is located near the cardia. After the fixing balloon 3 is inflated, the fixing balloon 3 expands, and the tube body 1 is stuck at the cardia under the action of the fixing balloon 3 to prevent the tube body 1 from being accidentally pulled out.

[0045] The airway tube 31 is made of a plastic film that meets medical standards. The cross-section of the airway tube 31 is circular. The airway tube 31 is in a closed flat state under normal conditions. When inflating, just insert the syringe into one end of the airway tube 31 to inflate. After the inflation is completed, the airway tube 31 returns to a flat state. In order to prevent the fixed balloon 3 from leaking along the airway tube 31 after inflation, an air guide strip 32 is provided in the airway tube 31. The air guide strip 32 is a long strip tube made of plastic film like the airway tube 31. The air guide strip 32 is in a closed flat state under normal conditions. Both ends of the air guide strip 32 are open, and one end of the air guide strip 32 is fixed to the inner wall of the airway tube 31. When inflating, the gas flows into the air guide strip 32 unidirectionally through the airway tube 31 to inflate the fixed balloon 3.

[0046] Regarding the deflation of the fixed balloon 3, when it is necessary to deflate the fixed balloon 3, a round tube is inserted into the air guide tube 31 and the air guide strip 32, the flat air guide tube 31 and the air guide strip 32 are propped up, and the gas in the fixed balloon 3 is extracted with a syringe.

[0047] Regarding the installation position of the air guide tube 31 on the tube body 1: the air guide tube 31 is laid along the inner wall of the tube body 1, and passes through the inner wall of the tube body 1 at a group of positioning grooves 11 closest to the sealed end of the tube body 1 to be exposed to the outside of the tube body 1. At the same time, the air guide strip 32 is arranged in the air guide tube 31 exposed at the outer end of the tube body 1, and passes through the junction of the tube body 1 close to the air guide tube 31. In addition, the air guide tube 31 passes through the wall thickness of the tube body 1 and extends along the tube body 1 until the open end of the tube body 1.

[0048] like Figure 1 , 2 As shown in Figures 3, 4, 5, 6 and 7, the nasal fixing component 4 includes a fixing card 41 and a tube fixing ring 43. The fixing card 41 is arranged at the nasal septum of the patient, and the tube fixing ring 43 is arranged at the open end of the tube body 1 and is located in the nasal cavity of the patient. The tube fixing ring 43 is connected to the fixing card 41 by a connecting strip 42.

[0049] The fixing card 41 is a card with a "U"-shaped cross-section. The fixing card 41 can be stuck in the nasal septum between the two nostrils of the patient. In order to ensure the stability of fixation, the two vertical arms of the fixing card 41 are in an inverted "V" shape, so that the fixing card 41 can be stuck in the nasal septum at a temperature.

[0050] The tube body fixing ring 43 is a circular ring, and the outer diameter of the tube body fixing ring 43 is smaller than the inner diameter of the normal patient's nostril. The inner wall of the tube body fixing ring 43 is arranged in two steps, where the section with a smaller inner diameter is equal to the outer diameter of the tube body 1, and the tube body fixing ring 43 is integrally sleeved on the outside of the tube body 1.

[0051] In order to facilitate the connection between the tube body fixing ring 43 and the tube body 1, 6 limiting grooves 45 are recessed perpendicular to the inner wall on a section of the inner wall with a smaller inner diameter on the tube body fixing ring 43. The limiting slider 44 can be inserted into the limiting groove 45 and slide radially along the tube body fixing ring 43 in the limiting groove 45 to contact the outer wall of the tube body 1 inserted in the tube body fixing ring 43, thereby fixing the tube body 1 in the tube body fixing ring 43.

[0052] In order to make the limit slider 44 stably contact with the surface of the tube body 1 and ensure the stability of the fixation of the tube body 1, a limit spring 49 is arranged between the limit slider 44 and the limit slide groove 45. One end of the limit spring 49 contacts the bottom surface of the limit slide groove 45, and the other end contacts the limit slider 44. Under the action of the limit spring 49, the limit slider 44 maintains contact with the outer wall of the tube body 1.

[0053] The limit slider 44 is a block with a rectangular cross-section. The limit slider 44 can be stuck as a whole in the limit slide groove 45. Three limit contacts 48 are fixed on the side of the limit slider 44 close to the tube body 1. The limit contacts 48 are made of anti-slip material as a whole. After the limit contacts 48 contact the outer wall of the tube body 1, the tube body fixing ring 43 can be stably fixed on the tube body 1.

[0054] In order to ensure the stability of the fixation between the tube body 1 and the tube body fixing ring 43 , an anti-slip treatment is performed at the contact point between the outer surface of the tube body 1 and the limiting slider 44 .

[0055] In order to facilitate the release of the contact between the limit contact 48 and the outer wall of the tube body 1 and to facilitate the adjustment of the position of the tube body fixing ring 43 on the tube body 1, unlocking blocks 47 are provided on the two side surfaces of the limit slider 44 which are perpendicular to the mounting surface where the limit contact 48 is provided. One side surface of the unlocking block 47 is inclined. The unlocking block 47 contacts the unlocking strip 52 on the nose unlocking assembly 5. The unlocking strip 52 is pressed, and the unlocking strip 52 squeezes the unlocking block 47, pushing the limit slider 44 to slide into the limit slide groove 45.

[0056] The nose unlocking assembly 5 includes an unlocking button 51, an unlocking strip 52 and a mounting ring 53. The nose unlocking assembly 5 is integrally inserted into the tube body fixing ring 43, within a section with a larger inner diameter. In order to prevent the nose unlocking assembly 5 from falling off from the tube body fixing ring 43, an anti-slip ring 46 protrudes outwardly from the inner side surface of the end portion of the tube body fixing ring 43 with a larger inner diameter. The nose unlocking assembly 5 is limited by the anti-slip ring 46 to prevent the nose unlocking assembly 5 from falling off.

[0057] The unlocking strip 52 is a strip with a rectangular cross section. One end of the unlocking strip 52 is fixed to the mounting ring 53, and the other end contacts the unlocking block 47 on the limit slider 44. When the unlocking strip 52 is pressed, the unlocking strip 52 squeezes the unlocking block 47, pushing the limit slider 44 to slide into the limit slide groove 45. In order to ensure that multiple limit sliders 44 move at the same time, multiple unlocking strips 52 are arranged on the mounting ring 53, and the mounting rings 53 correspond to the limit sliders 44 one by one.

[0058] The mounting ring 53 is an annular sheet, and the inner diameter of the mounting ring 53 is slightly larger than the outer diameter of the tube body 1, and slightly smaller than the inner diameter of a section of the larger inner diameter of the tube body fixing ring 43. By pressing the mounting ring 53 hard, the mounting ring 53 can pass through the anti-slip ring 46 at the end of the tube body fixing ring 43 and be fixedly inserted into the tube body fixing ring 43. The unlocking button 51 is a rod with a rectangular cross-section, one end of the unlocking button 51 is connected to the mounting ring 53, and the other end is arranged at the fixing card 41. Pressing the unlocking button 51 can drive the mounting ring 53 to move, and then drive the unlocking strip 52 to move. The unlocking strip 52 squeezes the unlocking block 47, and pushes the limit slider 44 to slide into the limit slide groove 45, thereby releasing the contact between the limit slider 44 and the outer wall of the tube body 1.

[0059] In order to facilitate the reset of the unlocking button 51 after being pressed, an unlocking spring 54 is provided on the mounting ring 53. One end of the unlocking spring 54 is in contact with the mounting ring 53, and the other end is arranged on a step at the junction of two inner diameter sections in the tube fixing ring 43. After the unlocking button 51 is pressed, the unlocking spring 54 is compressed by force, and after the unlocking button 51 is released, the unlocking button 51 is reset under the action of the unlocking spring 54.

[0060] like Figure 1 , 8 As shown in FIGS. 13 and 14 , the bellows connecting tube 6 includes an unlocking insert tube 61 and a connecting insert tube 62 , and the unlocking insert tube 61 and the connecting insert tube 62 are connected via a retractable bellows.

[0061] The unlocking plug 61 is a cylindrical tube with openings at both ends. One end of the unlocking plug 61 is fixed on the bellows, and the open end is closed by an openable cover 65. In order to facilitate the connection between the bellows connecting tube 6 and the connecting head 7, an annular limiting ring 64 is provided on the outer wall of the unlocking plug 61 and is perpendicular to the outer protrusion of the unlocking plug 61. The limiting ring 64 can cooperate with the groove inside the connecting head 7, so that the unlocking plug 61 will not fall off easily after being inserted into the connecting head 7.

[0062] The connecting insert 62 is a conical tube with a certain taper on the outer surface. One end of the connecting insert 62 with a larger diameter is fixed on the corrugated tube, and the other end is fixed to the open end of the tube body 1 through a corrugated tube fixing assembly 63 .

[0063] In order to facilitate the insertion of the connecting cannula 62 into the open end of the tube body 1, the outer diameter of the smaller end of the connecting cannula 62 is slightly smaller than the inner diameter of the tube body 1, and the outer diameter of the larger end of the connecting cannula 62 is slightly larger than the inner diameter of the tube body 1.

[0064] The bellows fixing assembly 63 includes 6 positioning anchors 66. The positioning anchors 66 are wedge-shaped as a whole and are fixed obliquely on the outer surface of the connecting tube 62 in a barb-like manner and are evenly arranged along the radial direction of the connecting tube 62. After the connecting tube 62 is inserted into the open end of the tube body 1, the positioning anchors 66 will engage with the positioning grooves 11 on the inner wall of the tube body 1, thereby stably connecting the corrugated connecting tube 6 and the tube body 1 together.

[0065] like Fig. 9 , 10 As shown in FIGS. 11 and 12 , the connector 7 includes a clamping nut 71 and a connecting pipe 72 , and the clamping nut 71 is screwed onto one end of the connecting pipe 72 .

[0066] The connecting tube 72 is a cylindrical tube with openings at both ends, wherein the outer diameter of one section of the connecting tube 72 is larger than the outer diameter of the other section of the connecting tube 72, and an external thread is provided in a section of the connecting tube 72 with a smaller diameter near an end of the connecting tube 72 with a larger diameter, and a clamping nut 71 is screwed on here. The outer surface of the other end is processed with a conical surface, and a feeding tube for dripping nutrient solution is plugged into this end and fixed by the clamping nut 71 to prevent the connection between the feeding tube and the connecting tube 72 from falling off. When dripping nutrient solution, the unlocking plug 61 on the corrugated connecting tube 6 is inserted into the other end of the connecting tube 72 to drip the nutrient solution.

[0067] To prevent leakage of nutrient solution after the connection between the unlocking insert 61 and the connecting tube 72 is accidentally disconnected, an automatic sealing component 73 for automatically closing the opening of the connecting tube 72 is provided inside the other end of the connecting tube 72 .

[0068] The automatic sealing assembly 73 mainly includes five sealing sheets 74 . Each sealing sheet 74 has the same size and is fan-shaped. The five sealing sheets 74 can form a complete circle to seal the opening of the connecting pipe 72 .

[0069] The sealing sheet 74 is hinged to the inner wall of the plug-in interface end of the connecting tube 72 by a cylindrical hinge 75, and in order to facilitate the automatic rotation of the sealing sheet 74 to close the plug-in interface of the connecting tube 72, a torsion spring 77 is arranged in the cylindrical hinge 75. When the unlocking plug 61 is pulled out of the connecting tube 72, the torsion spring 77 drives the sealing sheet 74 to rotate and close the plug-in interface of the connecting tube 72.

[0070] When the unlocking plug 61 is inserted into the connecting tube 72, in order to ensure the sealing and facilitate the storage of the sealing sheet 74, a sealing sheet placement groove 76 is correspondingly provided on the inner wall of the connecting tube 72 near the plug interface. When the sealing sheet 74 is unfolded, the sealing sheet 74 will be stored in the sealing sheet placement groove 76, and after the sealing sheet 74 is stored in the sealing sheet placement groove 76, the surface of the sealing sheet 74 is flush with the inner wall of the connecting tube 72.

[0071] The use process of this embodiment is as follows: when in use, the tube body 1 is first inserted into the patient's body, and then the remaining tube body 1 (external tube) is inserted into the tube body fixing ring 43 on the tube body fixing part 2. During the insertion of the external tube, the unlocking button 51 needs to be pressed so that the tube body 1 can move in the tube body fixing ring 43. When the fixing card 41 on the tube body fixing part 2 is stuck to the nasal septum, the movement is stopped. At this time, the tube body fixing ring 43 is in the patient's nasal cavity, and then the excess tube body 1 outside the nasal cavity is cut off, and then the airway 31 is used to inflate the fixing balloon 3, and then the corrugated connecting tube 6 is installed, and the positioning anchor 66 on the connecting cannula 62 in the corrugated connecting tube 6 is connected to the positioning groove 11 on the tube body 1, and the corrugated connecting tube 6 is fixed to the open end of this end of the tube body 1, and the corrugated connecting tube 6 is closed by the cover 65. After the installation, the corrugated connecting tube 6 is retracted into the patient's nasal cavity, effectively preventing the patient from pulling out the tube;

[0072] When it is necessary to drip nutrient solution, first install the connector 7 to one end of the feeding tube, then use a clip to pull out the corrugated connecting tube 6 from the nasal cavity. At this time, the corrugated connecting tube 6 is stretched, and the cover 65 is opened after cleaning and disinfection, and the unlocking plug 61 on the corrugated connecting tube 6 is inserted into the connecting tube 72 on the connector 7. At this time, the automatic sealing component 73 is opened under the action of the unlocking plug 61, and the nutrient solution can be dripped normally. When the unlocking plug 61 is accidentally disconnected from the connecting tube 72, the sealing sheet 74 on the automatic sealing component 73 is reset under the action of the torsion spring 77 to seal the connecting tube 72 to prevent leakage of the nutrient solution.

[0073] The above embodiments are only for illustrating the technical idea of ​​the present utility model, and cannot be used to limit the protection scope of the present utility model. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A multifunctional nasogastric tube, comprising a tube body (1) characterized in that: The invention also comprises a tube body fixing portion (2) for fixing the tube body (1), a corrugated connecting tube (6) and a connecting head (7) for connecting the tube body (1) to an external feeding tube, wherein the tube body (1) is inserted into the tube body fixing portion (2) and fixed in the patient's nasal cavity through the tube body fixing portion (2); the tube body fixing portion (2) is detachably arranged on the tube body (1), and the position of the tube body fixing portion (2) on the tube body (1) is adjustable; the corrugated connecting tube (6) is detachably connected to the end of the tube body (1); the corrugated connecting tube (6) can be retracted into the nasal cavity; one end of the connecting head (7) is connected to the external feeding tube, and the other end is detachably plugged into the corrugated connecting tube (6); after the connecting head (7) is unplugged from the corrugated connecting tube (6), the feeding port on the connecting head (7) is automatically closed.

2. The multifunctional nasogastric tube according to claim 1, characterized in that: The tube body fixing portion (2) comprises an inflatable fixing balloon (3) fixed to the middle of the tube body (1) and a nose fixing component (4) arranged at the outer end of the tube body (1) for fixing the tube body (1) to the nasal cavity of the patient, wherein the fixing position of the nose fixing component (4) on the tube body (1) is adjustable via a nose unlocking component (5).

3. The multifunctional nasogastric tube according to claim 2, characterized in that: The nose fixing assembly (4) comprises a fixing clamp (41) and a tube body fixing ring (43), wherein the fixing clamp (41) is clamped at the nasal septum of the patient, and the tube body fixing ring (43) is sleeved on one end of the outside of the tube body (1), and the tube body fixing ring (43) and the fixing clamp (41) are connected via a connecting strip (42); a limiting sliding groove (45) is provided in the tube body fixing ring (43) along the radial direction of the tube body fixing ring (43), and a limiting sliding block (44) is provided in the limiting sliding groove (45); the limiting sliding block (44) slides in the limiting sliding groove (45) along the radial direction of the tube body fixing ring (43), contacts the outer wall of the tube body (1) inserted in the tube body fixing ring (43), and fixes the tube body fixing ring (43) on the tube body (1).

4. The multifunctional nasogastric tube according to claim 2, characterized in that: The nose unlocking assembly (5) comprises an unlocking button (51), an unlocking strip (52) and a mounting ring (53). The unlocking button (51) is arranged on a side surface of the mounting ring (53). One end of the unlocking strip (52) is arranged on the mounting ring (53), and the other end is in active contact with a limiting slider (44) in a tube body fixing ring (43). Pressing the unlocking button (51) can drive the limiting slider (44) to retract into the limiting slide groove (45).

5. The multifunctional nasogastric tube according to claim 2, characterized in that: A plurality of groups of limiting sliding grooves (45) and limiting sliding blocks (44) are arranged in the tubular body fixing ring (43) along the radial direction of the tubular body fixing ring (43).

6. The multifunctional nasogastric tube according to claim 1, characterized in that: The corrugated connecting tube (6) comprises an unlocking insert (61), a connecting insert (62) and a bellows fixing assembly (63); one end of the corrugated connecting tube (6) is connected to the connector (7) via the unlocking insert (61); the other end is inserted into the tube body (1) via the connecting insert (62) and connected to one end outside the tube body (1); the bellows fixing assembly (63) comprises a positioning anchor (66) arranged outside the connecting insert (62); the positioning anchor (66) cooperates with a group of positioning grooves (11) fixed to one end outside the tube body (1) to fix the corrugated connecting tube (6) to the tube body (1).

7. The multifunctional nasogastric tube according to claim 6, characterized in that: A plurality of positioning anchors (66) are arranged on the connecting insert (62) in the radial direction of the connecting insert (62); and a plurality of positioning grooves (11) are arranged in the axial direction of the tube body (1).

8. The multifunctional nasogastric tube according to claim 1, characterized in that: The connector (7) comprises a connecting tube (72) and an automatic sealing component (73). The automatic sealing component (73) is arranged in the connecting tube (72) to seal the connecting tube (72). The automatic sealing component (73) comprises a sealing sheet (74). The sealing sheet (74) is hinged in the connecting tube (72) via a torsion spring (77). After the sealing sheet (74) is unfolded, it is stored in a sealing sheet placement groove (76) in the connecting tube (72).

9. The multifunctional nasogastric tube according to claim 8, characterized in that: A plurality of sealing sheets (74) are hingedly connected to the connecting pipe (72).

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