Nasogastric tube fixing device

Abstract

The utility model provides a nasogastric tube fixing device which comprises a head ring, a connecting piece, a supporting piece and a buckle, and the head ring is suitable for being fixed to the head of a human body; the two connecting pieces are installed on the two sides of the head ring respectively. The supporting sheet is mounted at one end of the connecting sheet; and the buckle is arranged below the arc top position of the supporting sheet. The use process of the device is as follows: at the beginning, the two connecting pieces are located at the highest positions, the supporting piece is located at the farthest position from the head ring, when the device is used, the head ring is worn on the head of a patient, then the height of the connecting pieces and the horizontal position of the supporting piece are adjusted, the buckle is made to be close to the nasal cavity, the nasogastric tube is clamped in the buckle, and the connecting pieces and the supporting piece continue to be adjusted; finally, the nasogastric tube is located in the middle of the nasal cavity. The position of the nasogastric tube is adjusted through the connecting piece and the supporting piece, so that the nasogastric tube can be located in the middle of a nasal cavity, mucosa of the nasal cavity is prevented from being bruised, and meanwhile allergy caused by adhesive tape is avoided; the supporting piece and the buckle do not make contact with the skin near the nasal cavity of the patient, and therefore the skin of the patient can be prevented from being pressed and rubbed.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical auxiliary appliance technical field, concretely relates to a nasal gastric tube fixing device. BACKGROUND

[0002] The nasal gastric tube is a kind of medical consumables, is usually inserted into nostril, reaches stomach through pharynx, esophagus, and is mainly used to suck gastric juice, or inject liquid food into stomach to provide necessary food and nutrition for patient. Since the nasal gastric tube is deeply inserted into human body, if not effectively fixed, nasal gastric tube may be displaced, twisted, accidentally dropped due to the head movement, turning action of patient, and further cause nasal gastric tube to be blocked or not smooth, which not only affects the treatment effect, but also can cause additional pain and discomfort to patient.

[0003] Now, when fixing the nasal gastric tube in clinic, generally, the fixing band is used to wind and bind the part of nasal gastric tube exposed outside the nostril, and then the fixing band is fixed on the head of patient by winding through the back of the brain of patient. However, the problem of the above fixing method is that if the fixing band is too tight, the nasal gastric tube will press the skin and mucosa below the nasal cavity of patient, and if the fixing band is too loose, the nasal gastric tube will press the mucosa above the nasal cavity of patient, thereby causing the nasal cavity mucosa or the skin below the nose of patient to be pressed, and even causing pressure sores, increasing the pain of patient. In order to solve the above problem, the further improved fixing method is that when the fixing band is used to fix the nasal gastric tube, the fixing band is first used to fix the nasal gastric tube loosely, at this time, the nasal gastric tube will press the skin or mucosa below the nose of patient, and then the adhesive tape is pasted on the nasal gastric tube, the nasal gastric tube is pulled up, until the nasal gastric tube is just located in the middle of the nasal cavity, and then the adhesive tape is pasted and fixed to the position of the nose of patient, thereby solving the problem that the nasal gastric tube easily causes the nasal cavity mucosa or the skin below the nose to be pressed. The above fixing method can solve the problem that the nasal gastric tube causes the nasal cavity mucosa to be pressed to some extent, but still has the following defects: 1) some patients may be allergic to the adhesive tape, which is easy to cause blisters or rashes, leading to skin infection; 2) the binding rope is tied on the face of patient, which is easy to cause the skin of face to be pressed, and also easy to scratch the skin of patient; 3) the sweat and sebum secreted from the face of patient is easy to cause the adhesive tape to fall off, indirectly causing the nasal gastric tube to be displaced and slipped, thereby not only increasing the pain of patient by implementing second or multiple intubation to patient, but also affecting the treatment effect and prolonging the treatment period.

[0004] Therefore, it is necessary to provide a nasal gastric tube fixing device capable of firmly fixing the nasal gastric tube and not causing pressure injury to the skin of patient. UTILITY MODEL CONTENT

[0005] Therefore, the technical problem to be solved by the utility model lies in overcoming the technical defects that the skin under the nasal cavity of a patient is easily pressed when a nasal and gastric tube is fixed by using adhesive tape in the prior art, resulting in pressure sores, and meanwhile, some patients are prone to skin allergy, leading to skin infection, and the adhesive tape is easily affected by sweat and oil secreted by the patient and falls off, resulting in displacement and slipping of the nasal and gastric tube, thereby affecting the treatment effect, so as to provide a nasal and gastric tube fixing device capable of firmly fixing the nasal and gastric tube and not causing pressure injury to the skin of a patient.

[0006] Therefore, the utility model provides a nasal and gastric tube fixing device which comprises:

[0007] A head ring is adapted to be fixed on the head of a human body.

[0008] Two connecting pieces are movably installed on the two sides of the head ring through first adjusting structures respectively; one end of the connecting piece extends horizontally away from the head ring.

[0009] A supporting piece is arc-shaped and movably installed at one end of the connecting piece through a second adjusting structure.

[0010] A buckle is arranged at the top of the arc of the supporting piece and below the supporting piece, and the buckle is adapted to clamp and fix a nasal and gastric tube.

[0011] Further, the first adjusting structure comprises:

[0012] Two guide pieces are vertically arranged on the two sides of the head ring.

[0013] A first guide block is arranged on the inner side wall of the other end of the connecting piece, the first guide block is provided with a first guide groove in the vertical direction, and the first guide block is slidably installed on the guide piece through the first guide groove.

[0014] Further, the cross-sectional shape of the guide piece and the first guide groove is isosceles trapezoidal.

[0015] Further, the utility model further comprises:

[0016] An installation port is arranged at the other end of the connecting piece and penetrates the first guide groove.

[0017] A pin shaft is vertically arranged in the installation port and deviates from the center line of the installation port.

[0018] An eccentric wheel is rotatably sleeved and installed on the pin shaft, a handle is arranged on the outer side wall of the eccentric wheel, and the handle is used for controlling the rotation of the eccentric wheel around the pin shaft.

[0019] Further, the second adjusting structure comprises:

[0020] a second guide groove is formed on the inner side wall or the outer side wall of the connecting piece along the length direction of the connecting piece;

[0021] a second guide block is arranged on the outer side wall or the inner side wall of the two ends of the supporting piece, and is adapted to be in sliding connection with the second guide groove.

[0022] Further, the cross-sectional shape of the second guide block and the second guide groove is isosceles trapezoidal.

[0023] Further, the supporting piece comprises a flat section in the middle and arc-shaped sections arranged on both sides of the flat section, and the flat section is used for arranging the buckle.

[0024] Further, a third guide groove is arranged on the lower side wall of the flat section; and a third guide block adapted to be in sliding connection with the third guide groove is arranged on the buckle.

[0025] Further, the distance between the end of the third guide groove on the same side and the end of the flat section is greater than the length of the third guide block along the length direction of the flat section.

[0026] Further, the buckle is provided with at least two.

[0027] The technical scheme provided by the utility model has the following advantages:

[0028] The nasal gastric tube fixing device comprises a head ring, connecting pieces, a supporting piece and a buckle, wherein the head ring is adapted to be fixed on the head of a human body; the connecting pieces are two, and are movably installed on the two sides of the head ring through first adjusting structures; one end of the connecting piece extends horizontally away from the head ring; the supporting piece is arc-shaped, and two ends thereof are movably installed on one end of the connecting piece through second adjusting structures; the buckle is arranged at the arc top of the supporting piece and below the supporting piece, and is adapted to be clamped and fixed on the nasal gastric tube.

[0029] The nasal gastric tube fixing device is used as follows: in the use process, the patient is in a supine state; initially, the two connecting pieces are at the highest position (i.e. the position farthest from the back of the head of the human body), and the supporting piece is at the position farthest from the head ring; in use, the head ring is first worn and fixed on the head of the patient, and then the height of the connecting piece and the horizontal position of the supporting piece are adjusted until the buckle is adjusted to the appropriate position close to the nasal cavity; the nasal gastric tube is clamped in the buckle, and then the positions of the two connecting pieces and the supporting piece are further adjusted, so that the nasal gastric tube is finally located at the middle position of the nasal cavity and does not contact the nasal mucosa around the nasal cavity.

[0030] The nasal gastric tube fixing device of the utility model, through two connecting sheets and a supporting sheet can adjust the fixed position of the nasal gastric tube, so that it can be fixed in the middle of the nasal cavity, thereby avoiding causing pressure injury to the nasal cavity mucosa, and meanwhile, the allergic condition caused by using adhesive tape can also be avoided; the supporting sheet and the buckle are both located above the nasal gastric tube, and are spaced apart from the skin near the nasal cavity of the patient by a certain distance, thereby the face skin of the patient can be avoided from being pressed and rubbed, and the wearing comfort is improved; the two connecting sheets can be adjusted in height, and the supporting sheet can be adjusted in horizontal position, and the two can be matched to be suitable for patients with different head and face sizes, thereby improving the use range of the device; the nasal gastric tube fixing device of the utility model is most suitable when used when the patient is in a supine resting state. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical scheme in the prior art or the utility model embodiment, the drawings used in the prior art or the embodiment description are briefly introduced as follows.

[0032] Figure 1 It is the overall structure schematic diagram of the nasal gastric tube fixing device of the utility model.

[0033] Figure 2 It is Figure 1 The structure enlarged schematic diagram of part A in

[0034] Figure 3 It is Figure 2 The structure schematic diagram of part B in

[0035] Figure 4 It is Figure 2 The structure schematic diagram after the eccentric wheel is taken off in

[0036] Figure 5 It is Figure 1 The structure enlarged schematic diagram of part B in

[0037] Figure 6 It is the structure schematic diagram of the eccentric wheel.

[0038] Figure 7 It is Figure 1 Another perspective view of

[0039] Figure 8 It is Figure 7 The structure enlarged schematic diagram of part C in

[0040] Fig. 1 is a headgear; 11 is a guide piece; 2 is a connecting piece; 21 is a guide block; 211 is a guide groove; 22 is a mounting port; 23 is a pin shaft; 24 is an eccentric wheel; 241 is a handle; 26 is a second guide groove; 3 is a bracket; 31 is a second guide block; 32 is a straight section; 33 is an arc section; 34 is a third guide groove; 4 is a buckle; 41 is a third guide block. DETAILED DESCRIPTION

[0041] For those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the present application.

[0042] It should be noted that the terms "first", "second" and the like in the claims and the description of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units is not limited to those clearly listed steps or units, but can also include other steps or units not clearly listed or inherent to the process, method, product or device.

[0043] In the present application, the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse", "longitudinal" and the like are based on the orientations or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to indicating the orientation or positional relationship, the above-mentioned terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in the present application can be understood according to the specific circumstances. In addition, the meaning of the term "a plurality of" should be two and more than two. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0044] The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0045] The present embodiment provides a nasogastric tube fixing device, such as Figures 1-8As shown, it comprises a head ring 1, connecting pieces 2, a supporting piece 3 and a buckle 4, wherein the head ring 1 is adapted to be fixed on the human head; the connecting pieces 2 are two, and are movably installed on the two sides of the head ring 1 through first adjusting structures respectively; one end of the connecting piece 2 extends horizontally away from the head ring 1; the supporting piece 3 is arc-shaped, and two ends thereof are movably installed on one end of the connecting piece 2 through second adjusting structures respectively; the buckle 4 is arranged at the top of the arc of the supporting piece 3 and is below the supporting piece 3, and the buckle 4 is adapted to be clamped to fix the nasogastric tube.

[0046] In the nasal gastric tube fixing device of the embodiment, the head ring 1, the connecting pieces 2 and the supporting piece 3 can be made of plastic materials such as polyethylene and polypropylene, and all have certain rigidity; and in order to ensure the comfort of the patient, a soft buffer layer can be added at the position contacting the skin of the patient, which can be made of materials such as silica gel, polyurethane foam, elastic fiber or cotton cloth, so as to effectively disperse the pressure and reduce the friction and compression on the skin; at the same time, the surface contacting the skin can be treated specially, such as coating treatment or polishing treatment, so as to reduce the friction with the skin and reduce the compression feeling. The head ring 1 can adopt a closed structure, and in order to facilitate the use of different patients, the inner diameter of the head ring 1 can have different specifications, and when used, the head ring 1 with a suitable inner diameter specification can be selected according to the head circumference of the patient; or the head ring 1 can also adopt an open structure at one end (upper end or lower end), and the opening is connected by plastic buttons or magic tapes, for example, the two ends of the opening can be provided with the hook surface and the nap surface of the magic tape, so that the head ring 1 can be conveniently worn or removed and the inner diameter of the head ring 1 can be adjusted.

[0047] In the embodiment, the orientation descriptions such as "up and down" and "horizontal" are described by taking the patient wearing the nasal gastric tube fixing device of the embodiment in a supine state as an example, and the specific use process of the embodiment is as follows: initially, the two connecting pieces 2 are at the highest position (i.e. farthest from the back of the head of the human body), and the supporting piece 3 is at the farthest position from the head ring 1; when used, the head ring 1 is first worn and fixed on the head of the patient, and then the height of the connecting piece 2 and the horizontal position of the supporting piece 3 are adjusted until the buckle 4 is adjusted to the appropriate position close to the nasal cavity; the nasal gastric tube is clamped in the buckle 4, and then the positions of the two connecting pieces 2 and the supporting piece 3 are further adjusted, so that the nasal gastric tube is finally located at the middle position of the nasal cavity and basically does not contact the nasal mucosa around the nasal cavity.

[0048] In this embodiment, the fixed position of the nasogastric tube can be adjusted by the two connecting pieces 2 and the supporting piece 3, so that it can be fixed in the middle of the nasal cavity, thereby avoiding causing pressure injury to the nasal mucosa, and also avoiding the allergic reaction caused by the use of adhesive tape; the supporting piece 3 and the buckle 4 are located above the nasogastric tube, and are spaced apart from the skin near the nasal cavity of the patient, so that the face skin of the patient can be avoided from being pressed and rubbed, and the comfort of wearing is improved; the two connecting pieces 2 can be adjusted in height, and the supporting piece 3 can be adjusted in horizontal position, and the two can be matched to be suitable for patients with different head and face sizes, thereby improving the use range of the device; the nasogastric tube fixing device of this embodiment is most suitable when the patient is in a supine resting state.

[0049] The nasogastric tube fixing device of this embodiment further comprises a first adjusting structure, a second adjusting structure and a third adjusting structure. Figure 2 The first adjusting structure comprises a guide piece 11 and a first guide block 21; the guide piece 11 is two pieces and is vertically arranged on both sides of the head ring 1; the first guide block 21 is arranged on the inner side wall of the other end of the connecting piece 2, and the first guide block 21 is provided with a first guide groove 211 in the vertical direction, and the first guide block 21 is slidably installed on the guide piece 11 through the first guide groove 211.

[0050] In this embodiment, the guide piece 11 and the first guide block 21 both have a certain thickness, so that the connecting piece 2 and the supporting piece 3 are spaced apart from the skin of the human head and face without direct contact, that is, the two connecting pieces 2 and the supporting piece 3 are in a suspended state when in use without contacting the skin, so that the face skin of the patient can be further avoided from being pressed and rubbed, and the comfort of wearing is improved.

[0051] The nasogastric tube fixing device of this embodiment further comprises a first adjusting structure, a second adjusting structure and a third adjusting structure.

[0052] The nasogastric tube fixing device of this embodiment further comprises a first adjusting structure, a second adjusting structure and a third adjusting structure. Figures 2-4 Figure 6 The nasogastric tube fixing device of this embodiment further comprises a first adjusting structure, a second adjusting structure and a third adjusting structure.

[0053] ​In the embodiment, the eccentric wheel 24 can extrude and release the guide piece 11 when rotating on the pin shaft; when the eccentric wheel 24 extrudes on the guide piece 11, the friction between the two increases, which can prevent the relative movement between the eccentric wheel 24 and the guide piece 11; when the eccentric wheel 24 releases the guide piece 11, the friction between the two decreases or disappears, so that the relative movement between the eccentric wheel 24 and the guide piece 11 can occur; that is, the eccentric wheel 24 has a locked state (as shown in Figure 2 ) of extruding on the guide piece 11 and an unlocked state (as shown in Figure 3 ) of releasing the guide piece 11; when the eccentric wheel 24 is in the locked state, the connecting piece 2 and the guide piece 11 keep the relative position fixed; when the eccentric wheel 24 is in the unlocked state, the connecting piece 2 can move up and down on the guide piece 11.

[0054] The nasal gastric tube fixing device of the embodiment further comprises a second adjusting structure, as shown in Figure 5 ; the second adjusting structure comprises a second guide groove 26 and a second guide block 31; the second guide groove 26 is opened on the inner side wall or the outer side wall of the connecting piece 2 along the length direction of the connecting piece 2; the second guide block 31 is arranged on the outer side wall or the inner side wall of the two ends of the supporting piece 3, and is suitable for sliding connection with the second guide groove 26.

[0055] The nasal gastric tube fixing device of the embodiment further comprises a second guide block 31 and a second guide groove 26, and the cross-sectional shape of each of the second guide block 31 and the second guide groove 26 is isosceles trapezoidal.

[0056] The nasal gastric tube fixing device of the embodiment further comprises a second adjusting structure, as shown in Figure 7 and Figure 8 ; the supporting piece 3 comprises a flat section 32 in the middle and an arc-shaped section 33 arranged on both sides of the flat section 32, and the flat section 32 is used for arranging the buckle 4.

[0057] The nasal gastric tube fixing device of the embodiment further comprises a second adjusting structure, as shown in Figure 8 ; a third guide groove 34 is arranged on the lower side wall of the flat section 32; and a third guide block 41 suitable for sliding cooperation with the third guide groove 34 is arranged on the buckle 4.

[0058] In the embodiment, the buckle 4 is slidingly connected with the third guide groove 34 through the third guide block 41, can be conveniently moved on the flat section 32, so as to flexibly adjust the position relative to the nostril, and then realize the accurate positioning of the nasal gastric tube.

[0059] The nasal gastric tube fixing device of the embodiment further comprises a second adjusting structure, as shown in ; the distance between the end of the third guide groove 34 on the same side and the end of the flat section 32 is greater than the length of the third guide block 41 along the length direction of the flat section 32.

[0060] In the embodiment, the distance between the end of the third guide slot 34 and the end of the straight section 32 on the same side is greater than the length of the third guide block 41 along the length direction of the straight section 32, that is, a space is provided between the end of the third guide slot 34 and the end of the straight section 32, which can provide convenience for the disassembly of the buckle 4.

[0061] The nasal gastric tube fixing device of the embodiment is further shown in Figure 8 As shown in the figure, the buckle 4 is provided with at least two.

[0062] In the embodiment, part of the patients' nasal cavities are inserted with oxygen suction tubes at the same time of inserting the nasal gastric tubes, and the nasal gastric tubes and the oxygen suction tubes are inserted from two nasal cavities respectively, one buckle 4 can be used to clamp and fix the nasal gastric tube, and the other buckle 4 can be used to fix the oxygen suction tube, so that two different tubes can be fixed at the same time, and the nasal cavity mucosa of the two nasal cavities can be avoided from being pressed at the same time.

[0063] The nasal gastric tube fixing device of the embodiment has the following working principle:

[0064] Taking the patient in a supine state as an example, initially, the two connecting pieces 2 are at the highest position of the guide piece 11 (i.e. the position farthest from the back of the brain of the human body) and the eccentric wheels 24 are in the locked state, and the supporting piece 3 is at the farthest end of the connecting piece 2 (i.e. the position farthest from the head ring 1);

[0065] In use, first, the head ring 1 is worn and fixed on the head of the patient, then the handle 241 is operated to rotate the two eccentric wheels 24 to the unlocked state, so as to respectively make the connecting pieces 2 slowly descend along the guide piece 11 to the appropriate height; and make the supporting piece 3 move along the two connecting pieces 2 to the appropriate position, until the buckle 4 is adjusted to the appropriate position close to the nasal cavity; then the handle 241 is operated to rotate the eccentric wheel 24 to the locked state; the buckle 4 is adjusted, so that the buckle 4 moves along the third guide slot 34 to the appropriate position, and the nasal gastric tube is clamped in the buckle 4, then the positions of the two connecting pieces 2, the supporting piece 3 and the buckle 4 are further adjusted according to the above steps, so that the nasal gastric tube is finally located in the middle of the nasal cavity and basically does not contact the nasal cavity mucosa around the nasal cavity;

[0066] When it is needed to fix the oxygen suction tube at the same time, a new buckle 4 can be added through the space between the end of the third guide slot 34 and the end of the straight section 32, and the oxygen suction tube is clamped and fixed through the newly added buckle 4, and finally the newly added buckle 4 is adjusted, so that the oxygen suction tube is also located in the middle of the nasal cavity of the patient.

[0067] Obviously, the above embodiments are merely example for clearly illustrating but not limitation to the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments need not and can not be enumerated. The obvious changes or variations derived from the above description are still within the protection scope of the present technical solution.

Claims

1. A nasogastric tube securement device, characterized by, The utility model relates to a nasal gastric tube fixing device, including: Head ring (1) is suitable for fixing in human head, Connecting sheet (2) is two, and the two sides of head ring (1) are installed by first adjusting structure can go up and down respectively, and one end of connecting sheet (2) extends horizontally towards the direction away from head ring (1), Support sheet (3) is arc, and two ends are installed by second adjusting structure can horizontally move respectively in one end of connecting sheet (2), Buckle (4) is arranged in the arc top position of support sheet (3), and is located below support sheet (3), and buckle (4) is suitable for the joint fixing nasal gastric tube.

2. The NG tube securement device of claim 1, wherein, The first adjusting structure includes: Guide sheet (11) is two, and the two sides of head ring (1) are arranged vertically opposite, First guide block (21) is arranged on the inner side wall of the other end of connecting sheet (2), and first guide groove (211) is arranged in the vertical direction of first guide block (21), and first guide block (21) is slidably installed on guide sheet (11) through first guide groove (211).

3. The NG tube securement device of claim 2, wherein, The cross-sectional shape of guide sheet (11) and first guide groove (211) is isosceles trapezoidal.

4. The NG tube securement device of claim 2, wherein, Also including: Mounting port (22) is arranged in the other end of connecting sheet (2), and is through with first guide groove (211), Pin shaft (23) is vertically arranged in the inside of mounting port (22), and is arranged deviating from the center line of mounting port (22), Eccentric wheel (24) is rotatably sleeved and installed on pin shaft (23), and handle (241) is arranged on the outer side wall of eccentric wheel (24), for controlling the rotation of eccentric wheel (24) around pin shaft (23).

5. The NG tube securement device of claim 1, wherein, The second adjusting structure includes: Second guide groove (26) is opened in the inner side wall or outer side wall of connecting sheet (2) along the length direction of connecting sheet (2), Second guide block (31) is arranged on the outer side wall or inner side wall of both ends of support sheet (3), and is suitable for the sliding connection with second guide groove (26).

6. The nasogastric tube securement device of claim 5, wherein, The cross-sectional shape of second guide block (31) and second guide groove (26) is isosceles trapezoidal.

7. The nasogastric tube securement device of claim 1, wherein, Support sheet (3) includes the flat section (32) of middle part and the arc section (33) arranged on both sides of flat section (32), and flat section (32) is used for arranging buckle (4).

8. The nasogastric tube securement device of claim 7, wherein, Third guide groove (34) is arranged on the lower side wall of flat section (32), and third guide block (41) is arranged on buckle (4) and is suitable for the sliding cooperation with third guide groove (34).

9. The nasogastric tube securement device of claim 8, wherein, The distance between the end of third guide groove (34) and the end of flat section (32) on the same side is greater than the length of third guide block (41) along the length direction of flat section (32).

10. The nasogastric tube securement device of claim 1, wherein, Buckle (4) is provided with at least two.

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