Infusion device for preventing reflux and blockage of nasal feeding of critical patients

Abstract

The utility model relates to nasal feeding technical field provides a kind of infusion device of anti-reflux and blockage of critical patient nasal feeding, the piston rod one side is fixedly installed with round shaft, the injection cylinder one side is fixedly connected with support, the support slidingly connected with two round rods of symmetrical arrangement, two the round rod one end is fixedly connected with clamping block, two the round rod is all set with reset spring, two the reset spring one end is respectively fixedly connected with support, the utility model has beneficial effect: when infusion, clamping block can open release piston rod, complete reset spring drive clamping block automatic locking round shaft and piston rod, prevent the reflux caused by gastric pressure, while flow guide pipe adopts spring-like design and is clamped on the buckle of injection cylinder side, can carry out heat preservation to food, and can be clamped according to body position and length, avoid the situation that flow guide pipe length is too long to cause bending blockage, optimize clinical operation safety and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of nasogastric feeding technology, specifically to an infusion device for preventing reflux and blockage of nasogastric feeding for critically ill patients. Background Technology

[0002] Nasogastric feeding is a core method in critical care medicine for providing nutritional support to patients who are unable to eat independently. Existing nasogastric feeding infusion systems mainly rely on traditional syringes to push nutrient solutions. These devices typically consist of a transparent syringe, a sliding piston rod, and a grip, with the flow rate of the nutrient solution controlled by manually pushing and pulling the piston rod.

[0003] Traditional syringes lack a piston rod fixation mechanism after injection. When the patient's stomach pressure increases (such as during coughing or changes in body position), the nutrient solution is prone to reflux into the syringe, increasing the risk of aspiration pneumonia. In addition, the conventional drainage tube is designed in a straight line, which is easily bent by the patient's body position or external traction, resulting in increased infusion resistance or even complete blockage. This requires frequent replacement of the tubing, increasing medical costs and nursing burden. Utility Model Content

[0004] The purpose of this invention is to provide an infusion device for nasogastric feeding in critically ill patients to prevent reflux and blockage, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an infusion device for preventing reflux and blockage of nasogastric feeding in critically ill patients, comprising an injection cylinder, a piston rod slidably connected to the inner wall of the injection cylinder, and handles fixedly connected to both sides of the injection cylinder;

[0006] A round shaft is fixedly installed on one side of the piston rod, and a bracket is fixedly connected to one side of the syringe. Two symmetrically arranged round rods are slidably connected to the bracket. A clamping block is fixedly connected to one end of each round rod. A return spring is sleeved on each round rod. One end of each return spring is fixedly connected to the bracket, and the other end of each return spring is fixedly connected to the clamping block. An extrusion groove is opened at one end of each round rod. A limit shaft is slidably connected to each of the two grips. A limit block is fixedly connected to the upper end of each of the two limit shafts. A transmission plate is fixedly connected to the lower end of each of the two limit shafts. A transmission rod is fixedly connected to one side of each of the two transmission plates.

[0007] Preferably, a buckle is fixedly installed on one side of the syringe, and the buckle is arranged in a rectangular array.

[0008] Preferably, a guide tube is movably installed at the outlet of the syringe, and the guide tube is spring-shaped and secured to the buckle.

[0009] Preferably, the clamping block has an arc-shaped structure design, and a groove is provided on one side of the clamping block.

[0010] Preferably, the two extrusion grooves are inclined, and the two transmission rods are respectively arranged corresponding to the extrusion grooves.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: During infusion, the clamp can open to release the piston rod. After completion, the reset spring drives the clamp to automatically lock the round shaft and piston rod, preventing reflux caused by gastric pressure. At the same time, the guide tube adopts a spring-shaped design and is locked on the buckle on the side of the syringe, which can keep the food warm. It can also be locked according to the body position and length, avoiding the situation of bending and blockage caused by excessive length of guide tube, thus optimizing the safety and efficiency of clinical operation. Attached Figure Description

[0012] Figure 1 This is a front view of the structure of this utility model;

[0013] Figure 2 This is a partial structural front view of the present invention;

[0014] Figure 3 This is a partial structural diagram of the present invention;

[0015] Figure 4 This is a schematic diagram of the limiting shaft structure of this utility model;

[0016] Figure 5 This is a schematic diagram of the buckle structure of this utility model.

[0017] In the diagram: 1. Injector cylinder; 2. Piston rod; 3. Handle; 4. Round shaft; 5. Bracket; 6. Round rod; 7. Clamping block; 8. Return spring; 9. Extrusion groove; 10. Limiting shaft; 11. Limiting block; 12. Transmission plate; 13. Transmission rod; 14. Buckle; 15. Guide tube. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-5 The present invention provides the following technical solution:

[0020] Example 1: An infusion device for preventing reflux and blockage of nasogastric feeding in critically ill patients, including a syringe 1, a piston rod 2 slidably connected to the inner wall of the syringe 1, and handles 3 fixedly connected to both sides of the syringe 1.

[0021] When using it, medical staff use their index and middle fingers to hold the handles 3 on both sides of the syringe 1, pull the piston rod 2 to draw the food into the syringe 1, and then perform nasogastric feeding.

[0022] Example 2: This example, based on Example 1, further includes: a round shaft 4 fixedly installed on one side of the piston rod 2; a bracket 5 fixedly connected to one side of the syringe 1; two symmetrically arranged round rods 6 slidably connected to the bracket 5; a clamping block 7 fixedly connected to one end of each of the two round rods 6; a return spring 8 sleeved on each of the two round rods 6; one end of each of the two return springs 8 fixedly connected to the bracket 5; the other end of each of the two return springs 8 fixedly connected to the clamping block 7; an extrusion groove 9 opened at one end of each of the two round rods 6; a limit shaft 10 slidably connected to each of the two grips 3; a limit block 11 fixedly connected to the upper end of each of the two limit shafts 10; a transmission plate 12 fixedly connected to the lower end of each of the two limit shafts 10; and a transmission rod 13 fixedly connected to one side of each of the two transmission plates 12.

[0023] A buckle 14 is fixedly installed on one side of the syringe 1. The buckles 14 are arranged in a rectangular array. A guide tube 15 is movably installed at the output port of the syringe 1. The guide tube 15 is spring-shaped and is clamped on the buckle 14. The clamping block 7 has an arc-shaped structure design. A groove is opened on one side of the clamping block 7. Two extrusion grooves 9 are opened at an angle. Two transmission rods 13 are respectively set to correspond to the extrusion grooves 9.

[0024] When using this product to administer an infusion to a patient, the medical staff should use their index and middle fingers to hold the syringe in place. The transmission plates 12 on both sides, when pushed by the thumb, cause the piston to move towards the top of the grip 3 due to the force. The moving transmission plates 12 then drive the transmission rod 13 to move, which in turn squeezes the extrusion groove 9 on the round rod 6. The squeezed round rod 6 then drives the clamping plate to move towards the support 5. The clamping plates, which are moving away from each other, release the restriction on the round shaft 4, and the round shaft 4 releases the restriction on the piston. At this time, the piston can inject food. When the injection is finished, the index and middle fingers release the transmission plate 12, and the thumb releases the piston. The return spring 8, which has lost its squeezing force, then drives the clamping block 7 to reset. The reset clamping block 7 then squeezes and limits the round shaft 4, and the round shaft 4 then limits the position of the piston, fixing the piston position and preventing pressure backflow. When injecting food, the guide tube 15 can be spring-loaded onto the buckle 14 to keep the food warm and prevent the guide tube 15 from bending and causing food blockage.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An infusion device for preventing reflux and blockage of nasogastric feeding in critically ill patients, comprising an injection cylinder (1), wherein a piston rod (2) is slidably connected to the inner wall of the injection cylinder (1), and handles (3) are fixedly connected to both sides of the injection cylinder (1). Its features are: A round shaft (4) is fixedly installed on one side of the piston rod (2), and a bracket (5) is fixedly connected to one side of the syringe (1). Two round rods (6) are symmetrically arranged and slidably connected to the bracket (5). A clamping block (7) is fixedly connected to one end of each of the two round rods (6). A return spring (8) is sleeved on each of the two round rods (6). One end of each of the two return springs (8) is fixedly connected to the bracket (5), and the other end of each of the two return springs (8) is fixedly connected to the clamping block (7). An extrusion groove (9) is opened on one end of each of the two round rods (6). A limit shaft (10) is slidably connected to each of the two grips (3). A limit block (11) is fixedly connected to the upper end of each of the two limit shafts (10). A transmission plate (12) is fixedly connected to the lower end of each of the two limit shafts (10). A transmission rod (13) is fixedly connected to one side of each of the two transmission plates (12).

2. The infusion device for preventing reflux and blockage of nasogastric feeding in critically ill patients according to claim 1, characterized in that: A buckle (14) is fixedly installed on one side of the syringe (1), and the buckle (14) is arranged in a rectangular array.

3. The infusion device for preventing reflux and blockage of nasogastric feeding in critically ill patients according to claim 1, characterized in that: The syringe (1) has a flow guide tube (15) movably installed at its outlet, and the flow guide tube (15) is spring-shaped and locked onto the buckle (14).

4. The infusion device for preventing reflux and blockage of nasogastric feeding in critically ill patients according to claim 1, characterized in that: The clamping block (7) has an arc-shaped structure design, and a groove is provided on one side of the clamping block (7).

5. The infusion device for preventing reflux and blockage of nasogastric feeding in critically ill patients according to claim 1, characterized in that: The two extrusion grooves (9) are opened at an angle, and the two transmission rods (13) are respectively arranged corresponding to the extrusion grooves (9).

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