Stomach tube built-in fixing device and fixing method

Abstract

The invention discloses a stomach tube built-in type fixing device and a fixing method, and relates to the technical field of medical instruments, the stomach tube built-in type fixing device has the advantage of preventing a nasogastric tube from being separated from the body of a patient due to dragging, and the technical scheme is characterized in that the stomach tube built-in type fixing device comprises the nasogastric tube and is characterized in that the nasogastric tube is connected with a main fixing assembly for preventing the nasogastric tube from being separated from the body of the patient; the main fixing assembly comprises a connecting band, one end of the connecting band extends into the nostril located on one side, penetrates through the nasal foramen and extends out of the nostril located on the other side, and the two ends, located outside the two nostrils, of the connecting band are bound and fixed to form an annular structure; a main body base is fixed on the connecting band, the main body base is positioned on the front sides of fixed parts at two ends of the connecting band, a mounting seat is arranged beside the nasogastric tube, the nasogastric tube is fixed on the mounting seat, and the mounting seat is detachably and fixedly connected with the main body base through a clamping component.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a gastric tube built-in fixing device and fixing method. BACKGROUND

[0002] A nasogastric tube is a soft medical catheter inserted through the nasal cavity and retained in the stomach, which mainly provides enteral nutrition support for patients who cannot safely eat by mouth, delivers drugs or drains and depressurizes gastric contents, and is a commonly used life support channel in clinical practice.

[0003] After the patient inserts the nasogastric tube, the medical staff will take a tape and cut one end of the tape into two wings (forming a "person" shape), and then fix the uncut end to the alae nasi, and then wrap the two wings of the tape around the nasogastric tube to fix the nasogastric tube to the patient and reduce the risk of the nasogastric tube being pulled out of the patient's body.

[0004] However, when the patient is agitated, the nasogastric tube or the head may be inadvertently pulled out, resulting in accidental extubation, which not only increases the patient's pain and infection risk, but also increases the workload of medical staff. SUMMARY

[0005] In view of the above technical deficiencies, the purpose of the present application is to provide a gastric tube built-in fixing device and fixing method, which has the advantage of preventing the nasogastric tube from being pulled out of the patient's body.

[0006] To solve the above technical problems, the technical scheme adopted by the present application is as follows: The present application provides a gastric tube built-in fixing device and fixing method, comprising a nasogastric tube, wherein the nasogastric tube is connected with a main fixing assembly for preventing the nasogastric tube from being pulled out of the patient's body. The main fixing assembly comprises a connecting belt, one end of the connecting belt extends into one nostril, passes through the posterior naris, and extends out of the other nostril, and the connecting belt is fixed and tied at both ends to form a ring structure outside the two nostrils. A main body base is fixed on the connecting belt, the main body base is located on the front side of the connecting belt at the fixed position of both ends, a mounting seat is arranged beside the nasogastric tube, the nasogastric tube is fixed to the mounting seat, and the mounting seat and the main body base are detachably fixedly connected through a clamping assembly.

[0007] By adopting the technical scheme, the nasogastric tube is connected to the mounting seat, the connecting belt is connected to the main base, the mounting seat and the main base are detachably fixedly connected through the clamping assembly, the nasogastric tube is convenient to disassemble, the main fixing assembly and the buffer safety assembly cooperate to form a double anti-disengagement mechanism for preventing the nasogastric tube from being pulled out of the patient's body under the pulling effect, the connecting belt is sleeved outside the nasal septum, the structure of the human nasal septum is used to provide support, the possibility that the connecting belt is loosened under the pulling of the patient and causes the nasogastric tube to be pulled out of the patient's body is reduced, and when the pulling force of the patient is too large, the connecting belt will pull the nasal septum part, the compression of the connecting belt on the nasal septum will be significantly enhanced, the patient is reminded and prevented from further pulling, the risk of nasogastric tube extubation is further reduced, and the discomfort of the patient caused by repeated intubation due to the disengagement of the nasogastric tube is also reduced, and the burden of medical staff is also reduced.

[0008] Preferably, the clamping assembly comprises a connecting shaft penetrating through the main base and being rotationally connected with the main base; both ends of the connecting shaft penetrate out of the main base, one end of the connecting shaft penetrating out of the main base is fixed with a handle, and the other end of the connecting shaft penetrating out of the main base is coaxially fixed with a first connecting column, a second connecting column, a third connecting column and a limiting block in sequence; the diameter of the first connecting column is smaller than that of the second connecting column, the diameter of the third connecting column is smaller than that of the first connecting column, the diameter of the limiting block is the same as that of the second connecting column, and the end of the limiting block away from the third connecting column is a circular arc surface; the outer wall surface of the second connecting column is provided with an inclined cutting groove, and the cutting groove extends to the connecting position of the second connecting column and the third connecting column.

[0009] Preferably, the mounting seat is fixed with a clamping plate on the side away from the main base, the two sides of the clamping plate are arranged obliquely and oppositely, the end portions of the clamping plate extend outwardly and are bent, and the bending portions are clamped between the limiting block, the third connecting column and the second connecting column; the diameter of the second connecting column is greater than the spacing between the two end portions of the clamping plate; the mounting seat and the clamping plate are both penetrated with through holes for the first connecting column, the second connecting column, the third connecting column and the limiting block to penetrate through.

[0010] Preferably, the clamping plate is made of elastic plastic material, and the elastic plastic material comprises one or more combinations of thermoplastic polyurethane, polyvinyl chloride and polyamide; the main base, the mounting seat, the connecting shaft, the handle, the first connecting column, the second connecting column, the third connecting column and the limiting block are all made of hard plastic material, and the hard plastic material comprises one or more combinations of polycarbonate, polyamide and polyvinyl chloride.

[0011] Preferably, the mounting seat is provided with a protection box with an inner cavity on the side away from the main base, when the mounting seat is connected with the main base, the clamping plate, the first connecting column, the second connecting column, the third connecting column and the limiting block are all located in the inner cavity of the protection box, and the protection box is made of transparent plastic material.

[0012] Preferably, the nasogastric tube is also provided with a buffer safety component to prevent the nasogastric tube from detaching from the patient's body; the buffer safety component includes an outer protective tube sleeved on the outside of the nasogastric tube, the outer protective tube being slidably connected to the nasogastric tube in the axial direction relative to the nasogastric tube, and the outer protective tube being connected to the main body base through a reset component.

[0013] Preferably, the reset assembly includes a reset box fixed to the main body base; three alternately arranged drive shafts are rotatably connected to the bottom of the cavity of the reset box, and each drive shaft is fitted with a fixed pulley fixed coaxially with the drive shaft; it also includes a reset rope; one end of the reset rope is fixed to the groove of the fixed pulley located on the right side; the reset rope passes around the three fixed pulleys in sequence, passes around the fixed pulley located on the left side, and the other end of the reset rope passes out of the reset box and slides and connects with the reset box; one end of the reset rope passing out of the reset box is fixed to the outer protective tube; the reset box is also provided with a rotary structure that cooperates with the fixed pulley located on the right side.

[0014] Preferably, the rotary structure includes a drive gear nested outside the drive shaft located on the right side; the drive gear is coaxially fixed with the drive shaft located on the right side; an ear seat is fixed to the bottom of the cavity groove of the reset box, a limit shaft is rotatably connected to the ear seat, a follower gear is embedded in the outer wall of the limit shaft, the follower gear meshes with the drive gear; an annular plate is fixed on the ear seat, the annular plate is located outside the limit shaft, and a spring is also connected to the outer circumference of the limit shaft, the spring is located inside the annular plate.

[0015] Preferably, the reset box has an opening for the reset rope to pass through and communicate with the inner cavity of the reset box, called the through opening. The length of the through opening is 2-5cm and the diameter of the reset rope is 0.5-1cm.

[0016] A method for securing an internal gastric tube fixation device includes the following steps: S1: It also includes a rigid probe and a flexible probe, and the ends of the rigid probe and the flexible probe are fixed with mutually compatible magnets, and the connecting strip is assembled to the flexible probe. S2: Lubricate the rigid probe, insert the rigid probe into one nostril, and then insert the flexible probe into the other nostril. Move the rigid probe and the flexible probe until the magnets at the ends of the rigid probe and the flexible probe connect. S3: Pull the rigid probe so that both the rigid probe and the flexible probe connected to the rigid probe by a magnet are moved out of one nostril. At this time, the connecting band connected to the flexible probe passes through the posterior nasal opening and extends out of the two nostrils respectively. S4: Remove the rigid and flexible probes, and secure the ends of the connecting straps extending from both nostrils by binding them in place; S5: The main base is fixed with the connecting band, the mounting seat is fixed with the nasogastric tube, the first connecting column, the second connecting column, the third connecting column and the limiting block pass through the through hole to penetrate the mounting seat and the clamping plate, so that the main base is fixed with the mounting seat; S6: The outer protective tube is sleeved on the nasogastric tube, and the reset rope passing out of the reset box is fixed with the outer protective tube.

[0017] The beneficial effects of the present application are that the nasogastric tube is connected to the mounting seat, the connecting band is connected to the main base, the mounting seat and the main base are detachably connected through the clamping assembly, the nasogastric tube is convenient to disassemble, the main fixing assembly and the buffer safety assembly cooperate to form a double anti-extrusion mechanism to prevent the nasogastric tube from being pulled out of the patient's body, the connecting band is sleeved outside the nasal septum, the structure of the human nasal septum provides support, reduces the possibility of the nasogastric tube being pulled out of the patient's body due to the loosening of the connecting band under the pulling of the patient, and when the pulling force of the patient is too large, the connecting band will pull the nasal septum part, the pressure of the connecting band on the nasal septum will be significantly enhanced, thereby reminding the patient to stop pulling, further reducing the risk of nasogastric tube extubation, the buffer safety assembly is sleeved with the outer protective tube which is in sliding connection with the nasogastric tube outside the nasogastric tube, the nasogastric tube is protected, the possibility of bending the nasogastric tube during pulling and affecting the smooth feeding is reduced, at the same time, when the outer protective tube is pulled, the outer protective tube slides under the pulling action, without affecting the normal use of the nasogastric tube, through the reset assembly, when the pulling force disappears, the reset assembly provides power to make the outer protective tube return to the initial state, continuously protecting the nasogastric tube, reducing the discomfort of the patient due to the disconnection of the nasogastric tube, and reducing the burden of medical staff. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present embodiment; Figure 2 It is a schematic diagram of the structure for embodying the handle of the present embodiment; Figure 3 It is a schematic diagram of the structure for embodying the clamping plate of the present embodiment; Figure 4 It is a schematic diagram of the structure for embodying the through hole of the present embodiment; Figure 5 It is a schematic diagram of the structure of the reset box of the present embodiment; Figure 6 It is a schematic diagram of the structure for embodying the mainspring of the present embodiment.

[0020] BRIEF DESCRIPTION OF DRAWINGS In the figure: 1, nasogastric tube; 2, connecting belt; 3, main body base; 4, mounting seat; 5, outer protective tube; 6, connecting shaft; 7, handle; 8, first connecting column; 9, second connecting column; 10, third connecting column; 11, limiting block; 12, cutting groove; 13, through hole; 14, clamping plate; 15, reset box; 16, transmission shaft; 17, fixed pulley; 18, reset rope; 19, driving gear; 20, ear seat; 21, limiting shaft; 22, driven gear; 23, annular plate; 24, clockwork; 25, through opening. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0022] A gastric tube built-in fixing device and fixing method, like Figures 1 to 6 , comprising a nasogastric tube 1, and a main fixing assembly connected to the nasogastric tube 1 to prevent the nasogastric tube 1 from being separated from the patient's body; The main fixing assembly comprises a connecting belt 2, one end of the connecting belt 2 extending into a nostril on one side, passing through the posterior naris, and extending out of the other nostril, and the two ends of the connecting belt 2 outside the two nostrils being tied and fixed to form a ring structure; A main body base 3 is fixed on the connecting belt 2, and the main body base 3 is located on the front side of the fixed position of the two ends of the connecting belt 2; a mounting seat 4 is arranged beside the nasogastric tube 1, and the nasogastric tube 1 is fixed to the mounting seat 4; and the mounting seat 4 and the main body base 3 are detachably fixedly connected through a clamping assembly.

[0023] The nasogastric tube 1 is connected to the mounting seat 4, the connecting belt 2 is connected to the main body base 3, the mounting seat 4 and the main body base 3 are detachably fixedly connected through the clamping assembly, the nasogastric tube 1 is convenient to disassemble, the main fixing assembly and the buffer safety assembly cooperate to form a double anti-separation mechanism to prevent the nasogastric tube 1 from being pulled out of the patient's body under the pulling action, the connecting belt 2 is sleeved outside the nasal septum, and the structure of the human nasal septum provides support force to reduce the possibility that the connecting belt 2 is loosened under the pulling of the patient and causes the nasogastric tube 1 to be pulled out of the patient's body, and when the pulling force of the patient is too large, the connecting belt 2 will pull the nasal septum part, the compression feeling of the connecting belt 2 on the nasal septum will be significantly enhanced, thereby reminding the patient and preventing the patient from further pulling, forming a physiological feedback type anti-separation mechanism, and further reducing the risk of nasogastric tube pulling out.

[0024] Compared with the traditional way of connecting the nasogastric tube 1 to the patient's face by adhesive tape, the adhesive tape is pasted on the patient's face, which brings itching and discomfort to the patient's face, and once the patient pulls too hard, the adhesive tape will still be separated from the patient's face, which is easy to cause damage to the patient's face. The connecting belt 2 of the embodiment utilizes the nasal septum of the human body for support, reduces the risk of nasogastric tube 1 extubation, and does not cause damage to the patient's face, and has a more friendly fitting effect.

[0025] In order to further reduce the damage of the connecting belt 2 to the patient, the material of the connecting belt 2 is a relatively soft medical silica gel material, which reduces the damage to the patient's nasal cavity when the connecting belt 2 is pulled.

[0026] As Figure 2 and Figure 3 and Figure 4 The clamping assembly comprises a connecting shaft 6 penetrating through the main body base 3 and being rotationally connected with the main body base 3. Both ends of the connecting shaft 6 penetrate out of the main body base 3. One end of the connecting shaft 6 penetrating out of the main body base 3 is fixed with a handle 7. The other end of the connecting shaft 6 penetrating out of the main body base 3 is coaxially fixed with a first connecting column 8, a second connecting column 9, a third connecting column 10 and a limiting block 11 in sequence. The diameter of the first connecting column 8 is smaller than that of the second connecting column 9. The diameter of the third connecting column 10 is smaller than that of the first connecting column 8. The diameter of the limiting block 11 is the same as that of the second connecting column 9. The end of the limiting block 11 away from the third connecting column 10 is a circular arc surface.

[0027] As Figure 2 and Figure 3 and Figure 4 The side of the mounting seat 4 away from the main body base 3 is fixed with a clamping plate 14. The two sides of the clamping plate 14 are arranged and arranged oppositely. The end of the clamping plate 14 extends outwardly and is bent. The bending part is clamped between the limiting block 11, the third connecting column 10 and the second connecting column 9. The diameter of the second connecting column 9 is greater than the distance between the two ends of the clamping plate 14. The mounting seat 4 and the clamping plate 14 are both penetrated by a through hole 13 for the first connecting column 8, the second connecting column 9, the third connecting column 10 and the limiting block 11 to pass through.

[0028] After the first connecting column 8, the second connecting column 9, the third connecting column 10 and the limiting block 11 are inserted into the through hole 13, the bending part of the clamping plate 14 is clamped between the limiting block 11, the third connecting column 10 and the second connecting column 9, and the mounting seat 4 is clamped and fixed with the main base 3. At this time, the cutting groove 12 is close to the clamping plate 14, which does not affect the normal use of the clamping plate 14. When the rotating handle 7 is rotated and the cutting groove 12 is no longer close to the clamping plate 14, the second connecting column 9 is opened to the clamping plate 14, and the bending part of the clamping plate 14 is no longer located between the limiting block 11, the third connecting column 10 and the second connecting column 9. At this time, the first connecting column 8, the second connecting column 9, the third connecting column 10 and the limiting block 11 can be taken out of the clamping plate 14, which is convenient for the separation of the nasogastric tube 1 and the connecting belt 2.

[0029] As Figure 2 and Figure 3 and Figure 4 The clamping plate 14 is made of elastic plastic material, which includes one or a combination of thermoplastic polyurethane, polyvinyl chloride and polyamide. The main base 3, the mounting seat 4, the connecting shaft 6, the handle 7, the first connecting column 8, the second connecting column 9, the third connecting column 10 and the limiting block 11 are made of hard plastic material, which includes one or a combination of polycarbonate, polyamide or polyvinyl chloride.

[0030] The clamping plate 14 is made of elastic plastic material, which provides good elastic deformation ability and fatigue resistance while having sufficient structural rigidity. The main base 3, the mounting seat 4, the connecting shaft 6, the handle 7 and the first connecting column 8, the second connecting column 9, the third connecting column 10 and the limiting block 11 are made of hard plastic material, which has high structural strength and wear resistance, facilitating repeated clamping and disconnection of the clamping plate 14 and the limiting block 11, the third connecting column 10 and the second connecting column 9. At the same time, the above materials are light in quality, which reduces the pressure and indentation on the patient's face when the device is placed on the patient's face with the nasogastric tube 1 and the connecting belt 2, and improves the comfort of the user.

[0031] As Figure 2 and Figure 3 and Figure 4 The mounting seat 4 is provided with a protective box with an inner cavity on the side away from the main base 3. When the mounting seat 4 is connected with the main base 3, the clamping plate 14, the first connecting column 8, the second connecting column 9, the third connecting column 10 and the limiting block 11 are located in the inner cavity of the protective box, and the protective box is made of transparent plastic material. The protective box does not affect the connection of the mounting seat 4 and the main base 3, and protects the clamping plate 14, the first connecting column 8, the second connecting column 9, the third connecting column 10 and the limiting block 11.

[0032] The transparent silica gel sleeve is externally nested with the protective box, and the silica gel sleeve is fixedly connected with the outer wall of the protective box. By arranging the transparent silica gel sleeve, the connection between the main base 3 and the mounting seat 4 is conveniently observed, the possibility of scratching the face of the patient by the protective box is reduced, and the safety of the device is improved.

[0033] As Figure 2 and Figure 3 and Figure 4 and Figure 1 and Figure 2 and Figure 3 The buffer safety assembly is further arranged outside the nasogastric tube 1 to prevent the nasogastric tube 1 from being separated from the patient's body; the buffer safety assembly comprises an outer protective tube 5 arranged outside the nasogastric tube 1, the outer protective tube 5 is axially connected with the nasogastric tube 1 in a sliding manner, and the outer protective tube 5 is connected with the main base 3 through a reset assembly. The buffer safety assembly is arranged outside the nasogastric tube 1 and is connected with the nasogastric tube 1 in a sliding manner, so as to protect the nasogastric tube 1, reduce the possibility of affecting the smooth feeding of the nasogastric tube 1 in the process of pulling, and slide under the pulling action when the outer protective tube 5 is pulled, without affecting the normal use of the nasogastric tube 1. When the pulling force disappears, the reset assembly provides power to make the outer protective tube 5 return to the initial state, thereby continuously protecting the nasogastric tube 1.

[0034] As Figure 4 and Figure 5 and Figure 6 The reset assembly comprises a reset box 15 fixed on the main base 3; three transmission shafts 16 arranged alternately are rotationally connected to the bottom of the inner cavity of the reset box 15, and each transmission shaft 16 is coaxially fixed with a fixed pulley 17; the reset assembly further comprises a reset rope 18; one end of the reset rope 18 is fixed to the wheel groove of the fixed pulley 17 on the right side; the reset rope 18 sequentially passes through the three fixed pulleys 17, and after passing through the fixed pulley 17 on the left side, the other end of the reset rope 18 penetrates out of the reset box 15 and is connected with the reset box 15 in a sliding manner; the end of the reset rope 18 penetrating out of the reset box 15 is fixed with the outer protective tube 5; the reset box 15 further comprises a rotation structure matched with the fixed pulley 17 on the right side, and the three fixed pulleys 17 are arranged in a triangular shape.

[0035] As Figure 1 and Figure 5 The rotation structure comprises a driving gear 19 nested outside the transmission shaft 16 on the right side; the driving gear 19 is coaxially fixed with the transmission shaft 16 on the right side; an ear seat 20 is fixed to the bottom of the inner cavity of the reset box 15, a limiting shaft 21 is rotationally connected to the ear seat 20, a follow-up gear 22 is embedded on the outer wall of the limiting shaft 21, and the follow-up gear 22 is engaged with the driving gear 19; an annular plate 23 is fixed to the ear seat 20, the annular plate 23 is located outside the limiting shaft 21, a clockwork 24 is further connected to the circumferential outer wall of the limiting shaft 21, and the clockwork 24 is located inside the annular plate 23.

[0036] Compared with the way of adopting spring connection outer protective tube 5, if the spring is stretched in multiple directions, it will cause the problem of jamming or difficulty in resetting. The application adopts the cooperation of the fixed pulley 17 and the resetting rope 18 to adapt to the pulling and stretching of the patient in different directions, so that the resetting assembly has better adaptive effect on the embodiment.

[0037] The utilization of the embodiment is higher. The application supports the patient to pull the outer protective tube 5 in any direction, which does not affect the nasogastric tube 1, As Figure 6 Figure 5 Figure 6 Figure 5 , the resetting box 15 is provided with an opening for the resetting rope 18 to pass out and communicate with the inner cavity of the resetting box 15, which is called a passing-out opening 25. The length of the passing-out opening 25 is 2-5 cm, and the diameter of the resetting rope 18 is 0.5-1 cm. The length of the passing-out opening 25 on the resetting box 15 is greater than the diameter of the resetting rope 18, so that the patient can pull the outer protective tube 5 in different directions without being jammed.

[0038] The inner diameter of the outer protective tube 5 is between 5-10 mm, and the outer diameter of the nasogastric tube 1 is between 2-4 mm. The outer protective tube 5 cooperates with the fixed pulley 17. When the patient unconsciously pulls the outer protective tube 5, the direction of the outer protective tube 5 changes, and the resetting rope 18 can continue to move while not affecting the normal work of the nasogastric tube 1.

[0039] A fixing method of a gastric tube built-in fixing device, comprising the following steps: S1: further comprising a rigid probe and a flexible probe, the rigid probe and the flexible probe are both fixed with magnets that are adapted to each other, and the connecting belt 2 is assembled on the flexible probe; S2: lubricating the rigid probe, inserting the rigid probe into one nostril, and then inserting the flexible probe into the other nostril, and moving the rigid probe and the flexible probe until the magnets at the ends of the rigid probe and the flexible probe are connected; S3: pulling the rigid probe so that the rigid probe and the flexible probe connected with the rigid probe through the magnet are moved out of one nostril, at this time the connecting belt 2 connected with the flexible probe passes through the posterior naris and the two ends respectively extend from the two nostrils; S4: removing the rigid probe and the flexible probe, and binding and fixing the ends of the connecting belt 2 extending from the two nostrils; S5: the main base 3 is fixed with the connecting belt 2, the mounting seat 4 is fixed with the nasogastric tube 1, and the first connecting column 8, the second connecting column 9, the third connecting column 10 and the limiting block 11 pass through the through hole 13 to penetrate the mounting seat 4 and the clamping plate 14, so that the main base 3 is fixed with the mounting seat 4; S6: the outer protective tube 5 is sleeved on the nasogastric tube 1, and the resetting rope 18 passing out of the resetting box 15 is fixed with the outer protective tube 5.

[0040] In use, the medical staff attaches the connecting band 2 outside the flexible probe, and the two ends of the connecting band 2 are tied to the flexible probe, then the medical staff lubricates the rigid probe with a lubricant, inserts the rigid probe into one nostril of the patient, inserts the flexible probe into the other nostril, pushes the rigid probe and the flexible probe to move in the nasal cavity until the magnets at the ends of the rigid probe and the flexible probe are connected, so that the rigid probe and the flexible probe are combined and fixed as an integrated structure, then the staff member holds the rigid probe and pulls it outwards until the rigid probe and the flexible probe are removed from one of the nostrils, at this time the connecting band 2 passes through the posterior naris and the two ends of the connecting band 2 extend out of the two nostrils, the ends of the connecting band 2 extending out of the two nostrils are tied and fixed as a ring structure, the rigid probe and the flexible probe are both provided with a scale, which facilitates the medical staff to determine the movement distance of the rigid probe and the flexible probe; At this time, the staff member penetrates the first connecting column 8, the second connecting column 9, the third connecting column 10 and the limiting block 11 through the through hole 13 into the mounting seat 4 and the clamping plate 14, and the bent part of the clamping plate 14 is clamped into the space between the limiting block 11, the third connecting column 10 and the second connecting column 9, so that the main base 3 is clamped and fixed with the mounting seat 4; The outer protective tube 5 is sleeved outside the nasogastric tube 1, the reset rope 18 passing through the reset box 15 is fixed with the outer protective tube 5, and the outer protective tube 5 and the nasogastric tube 1 are slightly bent so that the outer protective tube 5 and the nasogastric tube 1 pass around the patient's ear, at this time, when the patient unconsciously pulls and pulls the outer protective tube 5 in different directions, the outer protective tube 5 moves outside the nasogastric tube 1, driving the reset rope 18 fixed with the outer protective tube 5 to move; In the initial state, the reset rope 18 is wound around the right side of the fixed pulley 17 for multiple turns, and then passes through the other two fixed pulleys 17, and the movement of the reset rope 18 is limited by the clockwork 24, the driven gear 22 and the limiting shaft 21, so as to limit the driving gear 19 and keep it stable without external force pulling; When there is external force pulling, the reset rope 18 moves to drive the three fixed pulleys 17 to rotate, and in turn drives the driving gear 19 to rotate, the rotation of the driving gear 19 drives the driven gear 22 engaged therewith to rotate, and the clockwork 24 is tightened, at this time the movement of the outer protective tube 5 does not affect the normal work of the nasogastric tube 1; When there is no external force pulling, the clockwork 24 rebounds to drive the driven gear 22 to rotate in the opposite direction, and in turn makes the reset rope 18 return to the original position, the reset box 15 is provided with a guide plate on the bottom of the inner cavity groove for guiding the reset rope 18 to rotate around the right side of the fixed pulley 17 or to rotate out of the right side of the fixed pulley 17, which helps the reset rope 18 to be repeatedly used; If the patient pulls the nasogastric tube 1 during pulling, at this time the connecting band 2 connected with the nasogastric tube 1 is sleeved outside the nasal septum, and the connecting band 2 moves to significantly enhance the pressure on the nasal septum under strong pulling, which naturally reminds the patient to loosen the hand holding the nasogastric tube 1, further reducing the risk of nasogastric tube 1 extubation.

[0041] It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application cover modifications and variations of this application provided they come within the scope of the appended claims and their equivalents.

Claims

1. A gastric tube internal fixation device, comprising a nasogastric tube (1), characterized in that, The nasogastric tube (1) is connected to a main fixation component to prevent the nasogastric tube (1) from detaching from the patient's body; The main fixing component includes a connecting strap (2), one end of which extends into one nostril, passes through the posterior nasal cavity, and extends out of the other nostril. The two ends of the connecting strap (2) located outside the two nostrils are tied and fixed in a ring structure. A main body base (3) is fixed on the connecting strip (2). The main body base (3) is located in front of the fixed parts at both ends of the connecting strip (2). A mounting seat (4) is provided on the side of the nasogastric tube (1). The nasogastric tube (1) is fixed to the mounting seat (4). The mounting seat (4) and the main body base (3) are detachably fixedly connected by a snap-fit ​​assembly.

2. The gastric tube internal fixation device as described in claim 1, characterized in that, The snap-fit ​​assembly includes a connecting shaft (6) that passes through the main body base (3) and is rotatably connected to the main body base (3). Both ends of the connecting shaft (6) extend out of the main body base (3). A handle (7) is fixed at one end of the connecting shaft (6) extending out of the main body base (3). At the other end of the connecting shaft (6) extending out of the main body base (3), a first connecting post (8), a second connecting post (9), a third connecting post (10), and a limiting block (11) are fixed coaxially in sequence. The diameter of the first connecting post (8) is smaller than the diameter of the second connecting post (9), the diameter of the third connecting post (10) is smaller than the diameter of the first connecting post (8), the diameter of the limiting block (11) is the same as the diameter of the second connecting post (9), and the end of the limiting block (11) facing away from the third connecting post (10) is an arc surface. The outer wall surface of the second connecting post (9) is provided with an inclined groove (12), which extends to the connection position between the second connecting post (9) and the third connecting post (10).

3. The gastric tube internal fixation device as described in claim 2, characterized in that, The mounting base (4) has a clamping plate (14) fixed on the side away from the main base (3). The two sides of the clamping plate (14) are arranged at an angle and opposite to each other. The end of the clamping plate (14) is bent outward and the bent part is inserted between the limiting block (11), the third connecting column (10) and the second connecting column (9). The diameter of the second connecting post (9) is greater than the distance between the two ends of the clamping plate (14); The mounting base (4) and the clamping plate (14) are both perforated with through holes (13) for the first connecting post (8), the second connecting post (9), the third connecting post (10) and the limiting block (11) to pass through.

4. The gastric tube internal fixation device as described in claim 3, characterized in that, The clamp (14) is made of elastic plastic material, which includes one or more of thermoplastic polyurethane, polyvinyl chloride, and polyamide. The main body base (3), mounting base (4), connecting shaft (6), handle (7), first connecting post (8), second connecting post (9), third connecting post (10) and limiting block (11) are all made of rigid plastic material, which includes one or more combinations of polycarbonate, polyamide or polyvinyl chloride.

5. The gastric tube internal fixation device as described in claim 3, characterized in that, The mounting base (4) has a hollow protective box on the side away from the main base (3). When the mounting base (4) is connected to the main base (3), the clamping plate (14), the first connecting column (8), the second connecting column (9), the third connecting column (10) and the limiting block (11) are all located in the inner cavity of the protective box. The protective box is made of transparent plastic.

6. The gastric tube internal fixation device as described in claim 1, characterized in that, The nasogastric tube (1) is also provided with a buffer safety component to prevent the nasogastric tube (1) from detaching from the patient's body; The buffer safety component includes an outer protective tube (5) sleeved on the outside of the nasogastric tube (1). The outer protective tube (5) is slidably connected to the nasogastric tube (1) in the axial direction relative to the nasogastric tube (1). The outer protective tube (5) is connected to the main body base (3) through a reset component.

7. The gastric tube internal fixation device as described in claim 6, characterized in that, The reset assembly includes a reset box (15) fixed on the main body base (3); The bottom of the inner cavity of the reset box (15) is rotatably connected to three alternately arranged drive shafts (16), and each drive shaft (16) is nested with a fixed pulley (17) that is coaxially fixed with the drive shaft (16). It also includes a reset rope (18); One end of the reset rope (18) is fixed to the groove of the fixed pulley (17) located on the right side; The reset rope (18) passes around three fixed pulleys (17) in sequence. After passing around the fixed pulley (17) located on the left, the other end of the reset rope (18) passes out of the reset box (15) and slides to connect with the reset box (15). One end of the reset rope (18) that passes through the reset box (15) is fixed to the outer protective tube (5); The reset box (15) is also provided with a rotating structure that cooperates with the fixed pulley (17) located on the right side.

8. The gastric tube internal fixation device as described in claim 7, characterized in that, The rotary structure includes a drive gear (19) nested outside the drive shaft (16) located on the right side. The drive gear (19) is fixed coaxially with the drive shaft (16) located on the right side; The bottom of the inner cavity of the reset box (15) is fixed with an ear seat (20), and a limiting shaft (21) is rotatably connected to the ear seat (20). A follower gear (22) is embedded in the outer wall of the limiting shaft (21), and the follower gear (22) meshes with the driving gear (19). An annular plate (23) is fixed on the ear seat (20). The annular plate (23) is located outside the limiting shaft (21). A spring (24) is also connected to the outer circumference of the limiting shaft (21). The spring (24) is located inside the annular plate (23).

9. The gastric tube internal fixation device as described in claim 7, characterized in that, The reset box (15) has an opening for the reset rope (18) to pass through and communicate with the inner cavity of the reset box (15), which is called the through opening (25). The length of the through opening (25) is 2-5cm, and the diameter of the reset rope (18) is 0.5-1cm.

10. A method for fixing an internal gastric tube fixation device, characterized in that, It also includes the following steps: S1: It also includes a rigid probe and a flexible probe, the ends of which are fixed with mutually compatible magnets, and the connecting strip (2) is assembled to the flexible probe. S2: Lubricate the rigid probe, insert the rigid probe into one nostril, and then insert the flexible probe into the other nostril. Move the rigid probe and the flexible probe until the magnets at the ends of the rigid probe and the flexible probe connect. S3: Pull the rigid probe so that both the rigid probe and the flexible probe connected to the rigid probe by a magnet are moved out of one nostril. At this time, the connecting band (2) connected to the flexible probe passes through the posterior nasal opening and the two ends extend out of the two nostrils respectively. S4: Remove the rigid probe and the flexible probe, and tie the ends of the connecting straps (2) extending from both nostrils to fix them; S5: The main body base (3) is fixed to the connecting belt (2), the mounting seat (4) is fixed to the nasogastric tube (1), and the first connecting column (8), the second connecting column (9), the third connecting column (10) and the limiting block (11) pass through the through hole (13) through the mounting seat (4) and the clamp (14) to fix the main body base (3) to the mounting seat (4); S6: The outer protective tube (5) is placed over the nasogastric tube (1), and the repositioning rope (18) passing through the repositioning box (15) is fixed to the outer protective tube (5).

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