Patient liquid food feeding device

Abstract

The patient liquid food feeding device is characterized in that the patient liquid food feeding device comprises a box body and a feeding mechanism, the feeding mechanism comprises a motor fixedly installed on one side of a transmission cavity, the output end of the motor is fixedly connected with a worm, fixing rods are arranged on the front portion and the rear portion of the transmission cavity, and gears and turbines are rotationally installed on the front portions and the rear portions of the fixing rods respectively; the worm wheel is meshed with the worm, the worm wheel is fixedly connected with the gear, a rack is slidably installed on the partition plate in a penetrating mode, a sliding groove is formed in the protruding block in a penetrating mode, rollers are slidably installed in the sliding groove, a liquid food bag is slidably installed between the rollers, and one end of the liquid food bag is detachably connected with the rack. The head of the liquid food bag is in threaded connection with a feeding pipe, an air pump is arranged behind the box body and is in threaded connection with the head of the liquid food bag through a pipeline, and a control box is arranged above the air pump; the liquid food bag can be prevented from flowing back, the extrusion depth of the liquid food bag is adjusted and controlled, heat preservation is conducted on liquid food, and liquid food in a liquid food pipeline is prevented from being blocked.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a device for feeding liquid food to patients. Background Art

[0002] In medical care, feeding liquid food is a common nursing method. There are various ways to feed liquid food, such as using a syringe to send liquid food into the patient's mouth, sending liquid food into the patient's mouth through a pump, and using a liquid food bag to feed the patient. Among them, the use of a syringe is often manually pushed, which is extremely labor-intensive; the use of a pump body is difficult to clean the pump body, and maintenance is more troublesome; and the liquid food bag is often not completely squeezed during squeezing, and the liquid food accumulates in the liquid food bag.

[0003] Prior art, such as the Chinese invention patent with publication number CN109674663B, discloses a "fluid food feeder for nursing in an intensive care unit", which is provided with a squeezing roller that presses against a fluid food bag and moves downward to squeeze the food in the fluid food bag downward. The squeezing roller can also squeeze the food adhering to the inner wall of the fluid food bag into the fluid food bag while squeezing the fluid food bag, thereby avoiding food waste. However, this structure has defects, namely, it is difficult to adjust the spacing between the squeezing rollers when squeezing the fluid food bag through the squeezing rollers, and it is also difficult to control the squeezing depth of the fluid food bag. In addition, during the period of swallowing stagnation of the patient, the retraction of the fluid food bag will cause the fluid food to flow back.

[0004] In addition, when the liquid food bag is used, the liquid food in the feeding tube is difficult to squeeze, so that the liquid food in the feeding tube is blocked, making it difficult to clean the liquid food in the feeding tube. Summary of the invention

[0005] The purpose of the present invention is to provide a device that can squeeze a liquid food bag, prevent the liquid food bag from flowing back, regulate the squeezing depth of the liquid food bag, keep the liquid food warm, and prevent the liquid food from being blocked in the liquid food pipe.

[0006] In order to achieve the above technical effects, the present invention is realized by the following technical solutions: a patient liquid food feeding device, characterized in that it includes a box and a feeding mechanism, wherein a transmission chamber and an extrusion chamber are respectively opened in the upper and lower parts of the box, a partition is arranged between the transmission chamber and the extrusion chamber, convex blocks are arranged on the left and right sides of the extrusion chamber, and a through groove is coaxially opened on the upper and lower tops of the box; the feeding mechanism includes a motor fixedly installed on one side of the transmission chamber, a worm is fixedly connected to the output end of the motor, a fixed rod is arranged at the front and rear of the transmission chamber, a gear and a turbine are rotatably installed on the fixed rod at the front and rear, the turbine is meshed with the worm, and the turbine is fixedly connected with the gear, a rack is slidably installed on the partition, the rack is meshed with the gear, a slide groove is opened inside the convex block through the box, a roller is slidably installed in the slide groove, a liquid food bag is slidably installed between the rollers, one end of the liquid food bag is detachably connected to the rack, a feeding tube is threadedly connected to the head of the liquid food bag, an air pump is arranged at the rear of the box, the air pump is threadedly connected to the head of the liquid food bag through a pipeline, and a controller is arranged above the air pump.

[0007] Preferably, insulation plates are provided on both sides of the extrusion chamber, heating wires are provided inside the insulation plates, and the insulation plates are electrically connected to the controller.

[0008] Preferably, a limiting groove is provided in the middle of the partition, the limiting groove is matched with the rack, and switches are provided on both sides of the partition.

[0009] Preferably, a hook is provided at the bottom of the rack, and the hook is detachably connected to the liquid food bag. Two adjustment rods are provided on one side of the rack, and the distance between the adjustment rods is the same as the length of the liquid food bag.

[0010] Preferably, the roller is rotatably connected to the Y-shaped rod, the Y-shaped rod is slidably installed inside the slide groove, and the rear end of the Y-shaped rod is threadedly connected with an adjusting ring.

[0011] Preferably, the liquid food bag is a transparent plastic bag, a lifting strap is provided at the rear end of the liquid food bag, a lifting hole is provided in the middle of the lifting strap, the lifting hole is detachably connected to the hook, and a three-way valve is provided at the front end of the liquid food bag.

[0012] Preferably, the three-way valve includes a valve body and a valve core, the valve body is a "π"-shaped structure, a through hole is arranged through the middle of the valve core, the through hole is connected to the valve body, an air hole is arranged through one end of the valve core, the air hole is an "L"-shaped structure, and the through hole and the air hole are respectively connected to the "π"-shaped structure of the valve body in an alternating manner.

[0013] Compared with the related art, the patient liquid food feeding device provided by the present invention has the following beneficial effects:

[0014] 1. The present invention provides a feeding mechanism and a switch on the partition, so that when the rack is rising and overshooting, the rack can press the switch through the adjusting rod, thereby limiting the rising height of the rack, thereby preventing the liquid food bag from being damaged due to excessive squeezing.

[0015] 2. The present invention sets a worm gear, drives the gear to rotate through the worm gear, and the rotation of the gear drives the rack to move, so that after the rack drives the liquid food bag to move, the liquid food bag is squeezed by the roller to discharge the liquid food, and due to the self-locking effect of the worm gear, the liquid food will not flow back.

[0016] 3. The present invention provides an air pump and a three-way valve, controls the switch of the air pump through a controller, and uses the three-way valve to close the through hole and open the air hole, so that the blocked liquid food in the feeding tube can be unblocked by compressed gas while sealing the liquid food, thereby preventing the liquid food from accumulating in the feeding tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 is a rear cross-sectional view of the present invention;

[0020] Figure 3 It is a schematic diagram of the overall structure of the feeding mechanism of the present invention;

[0021] Figure 4 Schematic diagram of the connection relationship between the Y-shaped rod and the slide groove of the present invention;

[0022] Figure 5 It is a schematic diagram of the connection relationship between the gear and rack of the present invention;

[0023] Figure 6 It is a schematic diagram of the structure of the three-way valve of the present invention;

[0024] Figure 7 It is a schematic diagram of the valve core structure of the present invention.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1. Box body; 11. Transmission chamber; 12. Extrusion chamber; 121. Insulation board; 13. Partition plate; 131. Limiting groove; 132. Switch; 14. Fixing rod; 15. Bump; 16. Through groove; 17. Slide; 2. Feeding mechanism; 21. Motor; 22. Worm; 23. Gear; 24. Turbine; 25. Rack; 251. Hook; 252. Adjusting rod; 26. Roller; 261. Y-shaped rod; 262. Adjusting ring; 27. Liquid food bag; 271. Lifting belt; 272. Lifting hole; 273. Three-way valve; 2731. Valve body; 2732. Valve core; 2733. Through hole; 2734. Air hole; 28. Air pump; 29. ​​Controller; 3. Feeding tube. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] Example 1

[0029] See also Figures 1 to 7As shown, a patient liquid food feeding device is characterized in that it includes a box body 1 and a feeding mechanism 2, wherein a transmission chamber 11 and an extrusion chamber 12 are respectively opened in the upper and lower parts of the box body 1, a partition 13 is arranged between the transmission chamber 11 and the extrusion chamber 12, convex blocks 15 are arranged on the left and right sides of the extrusion chamber 12, and a through groove 16 is coaxially opened on the upper and lower tops of the box body 1; the feeding mechanism 2 includes a motor 21 fixedly installed on one side of the transmission chamber 11, a worm 22 is fixedly connected to the output end of the motor 21, a fixed rod 14 is arranged at the front and rear of the transmission chamber 11, and a gear 23 and a turbine 24 are rotatably installed on the front and rear parts of the fixed rod 14, The turbine 24 is meshed with the worm 22, and the turbine 24 is fixedly connected to the gear 23. A rack 25 is slidably installed on the partition 13, and the rack 25 is meshed with the gear 23. A slide groove 17 is provided inside the protrusion 15 through the box body 1, and a roller 26 is slidably installed in the slide groove 17. A liquid food bag 27 is slidably installed between the rollers 26. One end of the liquid food bag 27 is detachably connected to the rack 25, and a feeding tube 3 is threadedly connected to the head of the liquid food bag 27. An air pump 28 is arranged at the rear of the box body 1, and the air pump 28 is threadedly connected to the head of the liquid food bag 27 through a pipeline, and a controller 29 is arranged above the air pump 28. The controller 29 controls the electrical components inside the feeding mechanism 2, so that the motor 21 drives the turbine 24 and the worm 22 to rotate, so that the gear 23 rotates and drives the rack 25 to move to one end, and then the rack 25 drives the liquid food bag 27 to pass through the two rollers 26, and then the roller 26 squeezes the liquid food bag 27. After the liquid food bag 27 is squeezed, the liquid food in the liquid food bag 27 is squeezed out, so that the liquid food enters the patient's mouth from the feeding tube 3.

[0030] The extrusion chamber 12 is provided with a heat preservation plate 121 on both sides, and a heating wire is provided in the heat preservation plate 121, and the heat preservation plate 121 is electrically connected to the controller 29. The heating wire in the heat preservation plate 121 keeps the liquid food bag 27 warm, so that the liquid food bag 27 can be stored in the extrusion chamber 12.

[0031] A limiting groove 131 is provided in the middle of the partition 13, and the limiting groove 131 is adapted to the rack 25, and switches 132 are provided on both sides of the partition 13. The limiting groove 131 is used to limit the movement of the rack 25, and the switch 132 is electrically connected to the controller 29, so that the switch 132 can control the movement of the motor 21 through the controller 29 after being pressed, thereby preventing the movement path of the rack 25 from becoming longer.

[0032] A hook 251 is provided at the bottom of the rack 25, and the hook 251 is detachably connected to the liquid food bag 27. Two adjustment rods 252 are provided on one side of the rack 25, and the distance between the adjustment rods 252 is the same as the length of the liquid food bag 27. The hook 251 is used to connect with the liquid food bag 27, so that the movement of the rack 25 drives the liquid food bag 27 to move, and the adjustment rod 252 is used to press the switch 132, so that after the switch 132 is pressed, the two adjustment rods 252 prevent the gear 23 from driving the rack 25 to move too long.

[0033] The roller 26 is rotatably connected to the Y-shaped rod 261, and the Y-shaped rod 261 is slidably installed inside the slide groove 17, and the rear end of the Y-shaped rod 261 is threadedly connected to an adjustment ring 262. Through the cooperation of the adjustment ring 262 and the Y-shaped rod 261, the Y-shaped rod 261 can move in the slide groove 17, thereby adjusting the distance between the two rollers 26, thereby adjusting the efficiency of squeezing the liquid food bag 27.

[0034] The liquid food bag 27 is a transparent plastic bag, and a lifting belt 271 is provided at the rear end of the liquid food bag 27. A lifting hole 272 is provided in the middle of the lifting belt 271, and the lifting hole 272 is detachably connected to the hook 251. A three-way valve 273 is provided at the front end of the liquid food bag 27. The lifting belt 271 can pass through the gap between the two rollers 26, so that the hook 251 can be hung in the lifting hole 272, thereby providing tension to the liquid food bag 27, and the three-way valve 273 enables the opening of the liquid food bag 27 to be closed when stored.

[0035] The three-way valve 273 includes a valve body 2731 and a valve core 2732. The valve body 2731 is a "π"-shaped structure. A through hole 2733 is provided in the middle of the valve core 2732. The through hole 2733 is connected to the valve body 2731. An air hole 2734 is provided at one end of the valve core 2732. The air hole 2734 is an "L"-shaped structure. The through hole 2733 and the air hole 2734 are respectively connected to the "π"-shaped structure of the valve body 2731 in an alternating manner. When the through hole 2733 and the valve body 2731 are in a connected state, the air hole 2734 is in a sealed state, so that the compressed gas will not affect the discharge of the liquid food. When the through hole 2733 and the valve body 2731 are in a sealed state, the air hole 2734 is connected with the valve body 2731, so that the air hole 2734 can output compressed gas into the feeding tube 3 through the compressed gas released by the air pump 28, thereby pushing out the residual liquid food in the feeding tube 3, thereby reducing the residual liquid food in the feeding tube 3.

[0036] Example 2

[0037] The feeding tube 3 of the present invention reserves a sufficient deformation length to cope with the movement of the liquid food bag 27;

[0038] The diameter of the through slot 16 of the present invention is such that it does not interfere with the passage of the feeding tube 3;

[0039] The air hole 2734 of the present invention is connected to the air pump 28 via a pipe thread;

[0040] The air pump 28 of the present invention is controlled by a solenoid valve;

[0041] The feeding tube 3 of the present invention is a Y-shaped structure and is simultaneously connected to the π-shaped structure of the valve body 2731;

[0042] The liquid food propulsion rate of the present invention depends on the rotation speed of the motor 21, so the speed of the motor 21 can be controlled by the controller 29, thereby controlling the liquid food propulsion speed;

[0043] The controller 29 of the present invention is provided with an intelligent monitoring device and an alarm device to monitor abnormal conditions in real time and give an alarm in time;

[0044] The controller 29 of the present invention is provided with an intelligent display screen, which can monitor the speed of the motor 21 in real time, and the liquid food discharge rate inferred from the speed of the motor 21, that is, the dripping rate. At the same time, the intelligent display screen can also record how many milliliters have been input according to the liquid food discharge rate, and the speed of the motor 21 can be adjusted through the intelligent display screen;

[0045] The box body 1 of the present invention is provided with a box door, which is a transparent plate for observing the remaining amount of liquid food.

[0046] Example 3

[0047] Working principle: before feeding the patient, first put the prepared liquid food into the liquid food bag 27, then use the three-way valve 273 to close the through hole 2733, then pass the lifting belt 271 through the gap between the rollers 26, and make the hook 251 pass through the lifting hole 272, so as to hang the liquid food bag 27 on the hook 251, then thread the feeding tube 3 on the three-way valve 273, and put one end of the feeding tube 3 into the patient's mouth;

[0048] After the preparation is completed, the through hole 2733 is opened through the three-way valve 273, and the motor 21 is started through the controller 29. After the motor 21 is started, the worm 22 is driven to rotate. The rotation of the worm 22 causes the turbine 24 to drive the gear 23 to rotate. The rotation of the gear 23 drives the rack 25 to move. The rack 25 can only move up and down under the restriction of the limit groove 131, so that the rack 25 rises. After the rack 25 rises, it pulls the liquid food bag 27 upward through the bottom hook 251. The liquid food bag 27 moves upward and is squeezed by the rollers 26 on both sides, so that the liquid food inside the liquid food bag 27 is squeezed out. After all the liquid food is squeezed out, as the rack 25 moves, the adjustment rod 252 on one side of the rack 25 contacts the switch 132, so that after the switch 132 is pressed, the controller 29 turns off the motor 21. At this time, the valve core 2732 is rotated to close the through hole 2733 and open the air hole 2734. Under the control of the controller 29, the air pump 28 deflates the air, so that the compressed gas enters the feeding tube 3 through the air hole 2734, thereby pushing out the accumulated liquid food in the feeding tube 3; and the next time it is used, only the liquid food bag 27 needs to be replaced, and there is no need to clean the feeding mechanism 2.

Claims

1. A device for feeding liquid food to a patient, characterized in that: The invention comprises a box body (1) and a feeding mechanism (2), wherein a transmission chamber (11) and an extrusion chamber (12) are respectively provided at the upper and lower parts of the box body (1), a partition (13) is provided between the transmission chamber (11) and the extrusion chamber (12), convex blocks (15) are provided on the left and right sides of the extrusion chamber (12), and through grooves (16) are provided coaxially at the upper and lower top parts of the box body (1); The feeding mechanism (2) comprises a motor (21) fixedly mounted on one side of a transmission chamber (11), a worm (22) fixedly connected to the output end of the motor (21), a fixed rod (14) arranged at the front and rear of the transmission chamber (11), a gear (23) and a turbine (24) rotatably mounted on the fixed rod (14) at the front and rear, the turbine (24) meshing with the worm (22), and the turbine (24) fixedly connected to the gear (23), a rack (25) slidably mounted through the partition (13), the rack (25) and the gear (23) being rotatably mounted on the fixed rod (14) at the front and rear, 3) meshing, the protrusion (15) is provided with a slide groove (17) penetrating through the box body (1), a roller (26) is slidably installed in the slide groove (17), a liquid food bag (27) is slidably installed between the rollers (26), one end of the liquid food bag (27) is detachably connected to the rack (25), the head of the liquid food bag (27) is threadedly connected to the feeding tube (3), an air pump (28) is arranged at the rear of the box body (1), the air pump (28) is threadedly connected to the head of the liquid food bag (27) through a pipeline, and a controller (29) is arranged above the air pump (28).

2. A patient liquid food feeding device according to claim 1, characterized in that: Insulation plates (121) are arranged on both sides of the extrusion chamber (12), heating wires are arranged inside the insulation plates (121), and the insulation plates (121) are electrically connected to the controller (29).

3. A patient liquid food feeding device according to claim 1, characterized in that: A limiting groove (131) is provided in the middle of the partition (13), the limiting groove (131) is matched with the rack (25), and switches (132) are provided on both sides of the partition (13).

4. A patient liquid food feeding device according to claim 1, characterized in that: A hook (251) is provided at the bottom of the rack (25), and the hook (251) is detachably connected to the liquid food bag (27). Two adjustment rods (252) are provided on one side of the rack (25), and the distance between the adjustment rods (252) is the same as the length of the liquid food bag (27).

5. A patient liquid food feeding device according to claim 1, characterized in that: The roller (26) is rotatably connected to the Y-shaped rod (261), the Y-shaped rod (261) is slidably installed inside the sliding groove (17), and the rear end of the Y-shaped rod (261) is threadedly connected to an adjusting ring (262).

6. A patient liquid food feeding device according to claim 1, characterized in that: The liquid food bag (27) is a transparent plastic bag. A lifting strap (271) is provided at the rear end of the liquid food bag (27). A lifting hole (272) is provided in the middle of the lifting strap (271). The lifting hole (272) is detachably connected to the hook (251). A three-way valve (273) is provided at the front end of the liquid food bag (27).

7. A patient liquid food feeding device according to claim 6, characterized in that: The three-way valve (273) comprises a valve body (2731) and a valve core (2732); the valve body (2731) is a "π"-shaped structure; a through hole (2733) is provided through the middle of the valve core (2732); the through hole (2733) is connected to the valve body (2731); an air hole (2734) is provided through one end of the valve core (2732); the air hole (2734) is an "L"-shaped structure; the through hole (2733) and the air hole (2734) are respectively connected to the "π"-shaped structure of the valve body (2731) in an alternating manner.

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