Anti-reflux medical nasal feeding device

Abstract

The utility model discloses an anti-regurgitation medical nasal feeding device which comprises an injector and an anti-regurgitation mechanism, the injector comprises an injection tube, a push handle and an injection nozzle, one end of the push handle extends into the injection tube and is in sliding connection with the injection tube, and the injection nozzle is fixedly arranged on the face, away from the push handle, of the injection tube and is communicated with the interior of the injection tube. The anti-reflux mechanism is arranged in the injection tube; the anti-reflux mechanism comprises a fixed ring fixedly arranged in the injection tube, a baffle plate arranged on one side, close to the injection nozzle, of the fixed ring, and a moving rod, a first fixed plate is fixedly arranged on the top, close to the side face of the injection nozzle, of the fixed ring, a fixed rod is fixedly arranged on the first fixed plate, and a sleeve is fixedly arranged on the side face, close to the injection nozzle, of the baffle plate; one end of the movable rod is rotationally connected to the fixed rod, and the other end of the movable rod is fixed to the sleeve through a first screw and a nut. The utility model is used for solving the technical problem of food and water backflow.

Description

TECHNICAL FIELD

[0001] The utility model belongs to nasal feeding technical field especially, it is a kind of anti-reflux medical nasal feeding food injection device. BACKGROUND

[0002] Nasal feeding is through nasal cavity insertion catheter into esophagus to reach stomach or jejunum, for head and neck surgery, general surgery and oncology department, etc. Because patient cannot eat, give the means of nutrition. Nasal feeding is first ground food with grinder, connect stomach tube with syringe, after firm connection, manually pressurize syringe into patient's stomach to help patients who cannot swallow independently to provide water and food, maintain metabolism, body weight and nutrition.

[0003] However, sudden situation cannot be effectively controlled in the process of injection, existing nasal feeding injector is prone to reflux in the process of use, which can cause blockage of nasal feeding injector, and even affect the health of patient. UTILITY MODEL CONTENT

[0004] In view of the above problems, the utility model provides a kind of anti-reflux medical nasal feeding food injection device.

[0005] To realize the above-mentioned purpose, the utility model discloses a kind of anti-reflux medical nasal feeding food injection device, including injector, anti-reflux mechanism, the injector includes injection tube, the push handle that one end extends into injection tube and with its sliding connection, injection nozzle, the injection nozzle is fixedly arranged in the side of injection tube far from push handle and is connected with the inside of injection tube, the anti-reflux mechanism is arranged in injection tube;

[0006] The anti-reflux mechanism includes fixed ring fixedly arranged in injection tube, baffle arranged in the side of fixed ring close to injection nozzle, moving rod, the first fixed plate is fixedly arranged on the top of the side of fixed ring close to injection nozzle, the first fixed plate is fixedly arranged with fixed rod, the side of baffle close to injection nozzle is fixedly arranged with sleeve, one end of moving rod is rotatably connected on fixed rod, and the other end is fixed with sleeve by first screw and nut.

[0007] Optionally, the side of baffle close to push rod is fixedly provided with sealing ring.

[0008] Optionally, the injector is further provided with fixing mechanism.

[0009] Optionally, the fixing mechanism comprises a sheath sleeved outside the injection tube, two rod sleeves arranged along the axial direction of the injection tube, two adjusting rods corresponding to the two rod sleeves, two groups of second fixing plates corresponding to the two rod sleeves, and a connecting plate, the sheath is provided with a limiting hole for the injection nozzle to pass through, the two rod sleeves are symmetrically arranged outside the sheath, one end of the adjusting rod extends into the rod sleeve and is in sliding connection with the rod sleeve, each group of the second fixing plates comprises two second fixing plates arranged at two ends of the rod sleeve along the length direction of the rod sleeve, and the two ends of the second fixing plates are fixed with the rod sleeve and the sheath, and the connecting plate is fixedly arranged at one end of the two rod sleeves away from the injection tube, and the adjusting rod and the rod sleeve are fixed by the second screw.

[0010] Optionally, the rod sleeve is provided with a first fastening hole, the adjusting rod is uniformly provided with a plurality of second fastening holes, and the second screw is inserted into the first fastening hole and one of the second fastening holes to fix the rod sleeve and the adjusting rod.

[0011] Optionally, the sheath is sleeved outside the injection tube and is in close contact with the injection tube and in sliding connection with the injection tube.

[0012] Optionally, the connecting plate is provided with a groove matched with one end of the push handle away from the injection tube.

[0013] Optionally, the rod sleeve and the adjusting rod are made of stainless steel.

[0014] The utility model discloses the beneficial effect that:

[0015] In use, food and water are placed in the injection tube first, then the injection tube is placed in the sheath, the push handle is located in the groove, the push handle is pushed, and the food and water flow out through the anti-reflux mechanism and the injection nozzle. When the patient has an emergency, the screw is inserted into the first fastening hole and one of the second fastening holes, so that the push handle can no longer move, thereby further preventing the food and water from refluxing. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further explained in detail in connection with the drawings and specific embodiment.

[0017] Figure 1 It is the whole structure schematic diagram of the utility model.

[0018] Figure 2 It is the partial section view of the anti-reflux mechanism.

[0019] Figure 3 It is the partial section view of the baffle and the moving rod.

[0020] Figure 4 It is Figure 3 The enlarged view of A part in the figure.

[0021] Reference Signs List

[0022] 1, syringe; 11, injection tube; 12, push handle; 13, injection nozzle; 2, anti-reflux mechanism; 21, fixed ring; 22, baffle; 23, moving rod; 24, first fixed plate; 25, fixed rod; 26, sleeve; 27, first screw; 28, nut; 3, fixing mechanism; 31, sheath; 32, rod sleeve; 321, first fastening hole; 33, adjusting rod; 331, second fastening hole; 34, second fixed plate; 35, connecting plate; 36, second screw. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the utility model, but the utility model can also be implemented in other manners different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the utility model, therefore, the utility model is not limited by the specific embodiments disclosed below.

[0024] With reference to Figure 1 and Figure 2 An anti-reflux medical nasal feeding feeding device, comprising a syringe 1, an anti-reflux mechanism 2 and a fixing mechanism 3. The syringe 1 comprises an injection tube 11, a push handle 12 and an injection nozzle 13, one end of the push handle 12 extends into the injection tube 11 and is in sliding connection with the injection tube 11. The injection nozzle 13 is fixedly arranged at the center position of the injection tube 11 away from the push handle 12, and the injection nozzle 13 is in communication with the inside of the injection tube 11. The anti-reflux mechanism 2 is arranged in the injection tube 11 and is used for preventing food and water from flowing back. The fixing mechanism 3 is arranged outside the injection tube 11, and is used for fixing the syringe 1 when the push handle 12 needs to stay at a certain position after injection for a period of time.

[0025] In use, food and water are first put into the injection tube 11, and the food and water can flow out of the injection nozzle 13 through the anti-reflux mechanism 2 in the syringe 1, and when the push handle 12 needs to stay at a certain position after injection for a period of time, the fixing mechanism 3 can be used to fix it, which can reduce reflux and also facilitate the use of medical staff.

[0026] With reference to Figure 2 and Figure 3, the anti-reflux mechanism 2 comprises a fixed ring 21, a baffle 22 and a moving rod 23. The fixed ring 21 is fixedly arranged in the injection tube 11, and the peripheral surface of the fixed ring 21 is fixedly connected with the inner wall of the injection tube 11. The baffle 22 is arranged on the side of the fixed ring 21 close to the injection nozzle 13, and a sealing ring (not shown in the figure) is fixedly arranged on the side of the baffle 22 close to the push handle 12. The baffle 22 is used to shield the annular part of the fixed ring 21, so that the fixed ring 21 and the baffle 22 are in a sealed state in the injection tube 11 when not in use. Referring to Figure 4 , two first fixed plates 24 are fixedly arranged on the top of the side of the fixed ring 21 close to the injection nozzle 13, and a fixed rod 25 is fixedly arranged between the two first fixed plates 24. The moving rod 23 is arranged in an inverted L shape, one end of the moving rod 23 is rotatably connected to the fixed rod 25, and the other end of the moving rod 23 is arranged on the side of the baffle 22 close to the injection nozzle 13. A sleeve 26 is fixedly arranged at the center of the side of the baffle 22 close to the injection nozzle 13, a first screw 27 is arranged through the moving rod 23, one end of the first screw 27 extends into the sleeve 26, and the sleeve 26 is fixedly connected with the first screw 27 through a nut 28, that is, the moving rod 23 is fixedly connected with the baffle 22.

[0027] When in use, food and water are placed in the injection tube 11, and the push handle 12 is pushed when needed, so that the pressure between the push handle 12 and the baffle 22 in the injection tube 11 is increased, and the food and water move towards the baffle 22 under the action of the pressure. At the same time, the food and water can apply pressure to the baffle 22, and the moving rod 23 on the side of the baffle 22 can rotate around the fixed rod 25, so that the baffle 22 is opened, and the food and water flow out from the injection nozzle 13 through the baffle 22. When the food and water flow back, the baffle 22 is pushed to return to the original position, and the annular part of the fixed ring 21 is shielded, so as to prevent the food and water from flowing back.

[0028] Referring to Figure 1The fixing mechanism 3 comprises a sheath 31, a rod sleeve 32, an adjusting rod 33, a second fixing plate 34 and a connecting plate 35. The sheath 31 is arranged outside the injection tube 11 along the long axis direction of the injection tube 11 and is in sliding connection with the injection tube 11, and the injection tube 11 is attached to the inner wall of the sheath 31. A limiting hole (not shown in the figure) for the injection nozzle 13 to pass through is formed in the side of the sheath 31 away from the push handle 12. The rod sleeve 32 and the adjusting rod 33 are both made of stainless steel. The number of the rod sleeves 32 is two, and the interiors of the two rod sleeves 32 are hollow. The two rod sleeves 32 are arranged along the long axis direction of the injection tube 11, and the two rod sleeves 32 are symmetrically arranged at the two ends of the sheath 31. A first fastening hole 321 is formed in the end of each of the two rod sleeves 32 away from the injection nozzle 13. The number of the second fixing plates 34 is two groups, and the two groups of second fixing plates 34 correspond to the two rod sleeves 32 one by one. The number of each group of second fixing plates 34 is two, and the two second fixing plates 34 are arranged at the two ends of the corresponding rod sleeve 32 along the length direction of the rod sleeve 32. The top of each of the two second fixing plates 34 is fixedly connected with the rod sleeve 32, and the bottom of each of the two second fixing plates 34 is fixedly connected with the sheath 31. The number of the adjusting rods 33 is two, and the two adjusting rods 33 correspond to the two rod sleeves 32 one by one. The adjusting rods 33 are arranged along the axis direction of the injection tube 11, and one end of each of the adjusting rods 33 extends into the rod sleeve 32 and is in sliding connection with the rod sleeve 32. A plurality of second fastening holes 331 are uniformly formed in the adjusting rod 33. A second screw 36 is inserted into the first fastening hole 321 and one of the second fastening holes 331, and the fixing of the adjusting rod 33 and the rod sleeve 32 is realized through the second screw 36. The connecting plate 35 is arranged at the end of the adjusting rod 33 away from the injection tube 11. The top and the bottom of the connecting plate 35 are fixedly connected with the two adjusting rods 33 respectively, and a groove (not shown in the figure) adapted to the end of the push handle 12 away from the injection tube 11 is formed in the side of the connecting plate 35 close to the injection tube 11. The end of the push handle 12 away from the injection tube 11 is clamped in the groove.

[0029] In use, the food and water are put into the injection tube 11, and then the injection tube 11 is sleeved in the sheath 31, so that the push handle 12 is located in the groove. The push handle 12 is pushed, and the food and water move to the injection nozzle 13. At the same time, the adjusting rod 33 also moves to the rod sleeve 32. When it is necessary to stop, the second screw 36 is inserted into the first fastening hole 321 and the second fastening hole 331, so that the push handle 12 no longer moves, and the food and water can also be prevented from flowing back, and the sudden situation of the patient can be controlled.

[0030] The use principle of the application is as follows: in use, the food and water are put into the injection tube 11, and then the injection tube 11 is put into the sheath 31, so that the push handle 12 is located in the groove. The push handle 12 is pushed, and the food and water flow out through the anti-backflow mechanism 2 and the injection nozzle 13. When the patient has a sudden situation, the second screw 36 is inserted into the first fastening hole 321 and one of the second fastening holes 331, so that the push handle 12 no longer moves, and the food and water can be further prevented from flowing back.

[0031] 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 other embodiments obtained by those of ordinary skill in the art without creative labor fall within the protection scope of the present application.

Claims

1. A medical nasogastric feeding device with anti-reflux function, characterized in that: The syringe (1) includes an anti-backflow mechanism (2). The syringe (1) includes an injection tube (11), a push handle (12) with one end extending into the injection tube (11) and slidably connected thereto, and an injection nozzle (13). The injection nozzle (13) is fixed on the side of the injection tube (11) away from the push handle (12) and communicates with the inside of the injection tube (11). The anti-backflow mechanism (2) is disposed inside the injection tube (11). The anti-backflow mechanism (2) includes a fixing ring (21) fixed inside the injection tube (11), a baffle (22) set on the side of the fixing ring (21) near the injection nozzle (13), and a moving rod (23). A first fixing plate (24) is fixed on the top of the fixing ring (21) near the side of the injection nozzle (13), and a fixing rod (25) is fixed on the first fixing plate (24). A sleeve (26) is fixed on the side of the baffle (22) near the injection nozzle (13). One end of the moving rod (23) is rotatably connected to the fixing rod (25), and the other end is fixed to the sleeve (26) by a first screw (27) and a nut (28).

2. The anti-reflux medical nasogastric feeding device according to claim 1, characterized in that: A sealing ring is fixed to the side of the baffle (22) near the push rod.

3. The anti-reflux medical nasogastric feeding device according to claim 1, characterized in that: The syringe (1) is also provided with a fixing mechanism (3).

4. The anti-reflux medical nasogastric feeding device according to claim 3, characterized in that: The fixing mechanism (3) includes a sheath (31) sleeved outside the injection tube (11), two rod sleeves (32) arranged along the axis of the injection tube (11), two adjusting rods (33) corresponding to the two rod sleeves (32), two sets of second fixing plates (34) corresponding to the two rod sleeves (32), and a connecting plate (35). The sheath (31) has a limiting hole for the injection nozzle (13) to pass through. The two rod sleeves (32) are symmetrically arranged outside the sheath (31). The adjusting rods (33) One end of the rod extends into the sleeve (32) and is slidably connected to it. There are two second fixing plates (34) in each group. The two second fixing plates (34) are set at both ends of the sleeve (32) along its length direction, and the two ends of the second fixing plates (34) are fixed to the sleeve (32) and the sheath (31) respectively. The connecting plate (35) is fixed at the end of the two sleeves (32) away from the injection tube (11). The adjusting rod (33) and the sleeve (32) are fixed by the second screw (36).

5. The anti-reflux medical nasogastric feeding device according to claim 4, characterized in that: The sleeve (32) has a first fastening hole (321), and the adjusting rod (33) has a plurality of second fastening holes (331) evenly distributed. The second screw (36) is inserted into the first fastening hole (321) and one of the second fastening holes (331) to fix the sleeve (32) and the adjusting rod (33).

6. The anti-reflux medical nasogastric feeding device according to claim 4, characterized in that: The sheath (31) is fitted over the outside of the injection tube (11) and is slidably connected to the injection tube (11).

7. The anti-reflux medical nasogastric feeding device according to claim 4, characterized in that: The connecting plate (35) has a groove that matches the end of the push handle (12) away from the injection tube (11).

8. The anti-reflux medical nasogastric feeding device according to claim 4, characterized in that: The sleeve (32) and the adjusting rod (33) are made of stainless steel.

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