Infusion container and infusion container filling method

Abstract

The present invention provides an infusion container and an infusion container filling method, which belong to the field of container technology. It solves the problem that the inflatable bag of the existing portable air pressure belt wrapped infusion system is easy to rupture. The infusion container includes a container body with a cavity and an opening, and a first plug is installed at the opening of the container body; the container body is composed of a body outer layer and a body inner layer, the body inner layer is located on the inner side of the body outer layer, the body outer layer and the body inner layer are stacked, and the body outer layer and the body inner layer can be peeled off; there is an air chamber between the body outer layer and the body inner layer, the body outer layer is provided with an air inlet connected to the air chamber, and an air-replenishing connector is installed at the air inlet of the body outer layer. The physiological saline or medicine packaged with the infusion container not only significantly improves the safety of intravenous infusion, but also significantly improves the convenience of intravenous infusion; even in harsh environments such as war and natural disasters, intravenous infusion can still be conveniently carried out.

Description

Technical Field

[0001] The invention belongs to the technical field of containers, and in particular relates to an infusion container.

[0002] The invention belongs to the technical field of containers and relates to an infusion container, in particular to a filling method of the infusion container. Background Art

[0003] Intravenous infusion is a method of injecting large amounts of sterile liquids, electrolytes, and drugs into the body through the veins. Conventional intravenous infusion is to hang the infusion container at a high place, and the liquid flows into the blood vessels under the action of gravity.

[0004] In emergency treatment during wars, natural disasters, etc., the use of conventional intravenous infusion will increase the difficulty of emergency treatment. For this reason, people have proposed a variety of infusion methods, such as a pneumatic infusion device (application number: 201120578973.5), in which the mouth of the infusion bottle faces upward, and the tip of the outlet pipe of the compressed air capsule is inserted from the bottle cap into the upper part of the inner cavity of the bottle; the infusion tube has a hard tube, which is inserted from the bottle cap into the bottom of the bottle; during infusion, the infusion bottle is only suitable for being placed with the port facing upward. In other words, if the infusion bottle is tilted, the normal discharge of the liquid will be affected, and even gas will be introduced into the blood vessels.

[0005] Another example is the portable air pressure belt wrapped infusion system (application number 201220193433.X), which includes a liquid storage bag and a portable air pressure belt. The portable air pressure belt includes an air pressure belt body, an inflatable bag, and an inflatable ball with an adjustable valve connected to the inflatable bag; the liquid storage bag is wrapped in the inflatable bag. Although filling the inflatable bag with air can make the liquid in the liquid storage bag flow into the blood vessels, there are also many shortcomings. 1. The inflatable bag is easy to expand, resulting in pressure loss and uneven liquid output pressure; 2. When the inflatable bag in the expanded state is accidentally collided, the liquid will flow out instantly at a high flow rate, and the inflatable bag is easy to rupture; 3. The system has the problem that the liquid storage bag is not suitable for replacement or is inconvenient to replace, which leads to problems such as inconvenience in use and high cost of use. Summary of the invention

[0006] The present invention provides an infusion container. The technical problem to be solved by the present invention is how to ensure the safety of intravenous infusion and improve the convenience of intravenous infusion.

[0007] The present invention provides an infusion container filling method. The technical problem to be solved by the present invention is how to ensure the safety of intravenous infusion and improve the convenience of intravenous infusion.

[0008] The technical problem to be solved by the present invention can be achieved through the following technical solutions: an infusion container, comprising a container body with a cavity and an opening, a first plug being installed at the opening of the container body; the container body is composed of a body outer layer and a body inner layer, the body inner layer is located on the inner side of the body outer layer, the body outer layer and the body inner layer are stacked, and the body outer layer and the body inner layer can be peeled off; an air chamber is provided between the body outer layer and the body inner layer, the body outer layer is provided with an air inlet hole connected to the air chamber, and an air replenishing connector is installed at the air inlet hole of the body outer layer.

[0009] The material of the outer layer of the body is PP or PETG, and the thickness of the outer layer of the body is 0.2mm-0.5mm; the outer layer of the body has a certain rigidity and elasticity, which effectively maintains the shape of the container and effectively protects the inner layer of the body. When the air chamber between the outer layer and the inner layer of the body is not additionally inflated, the shape of the outer layer container of the body remains unchanged, and it can still be reset by elasticity even if it is deformed by pressure; when the infusion is inflated into the air chamber between the outer layer and the inner layer of the body, the outer layer of the body will not expand, which significantly reduces the pressure loss and the possibility of rupture of the outer layer of the body. The inner layer of the body is a multi-layer composite, and at least one layer of the material in the inner layer of the body has high barrier properties, and the high barrier material is EVOH or aluminum foil; the thickness of the inner layer of the body is 0.05mm-0.1mm, thereby effectively protecting the filled liquid.

[0010] The air supply connector can be selected according to the actual connection method. In the first scheme, the air supply connector is a second plug with an auxiliary plug hole, so that the air supply needle can be inserted from the plug hole; in the second scheme, the outer end of the air supply connector has a thread, and the air supply joint is connected to the air supply connector through the thread. The air chamber between the outer layer of the body and the inner layer of the body reduces the possibility of the air supply needle puncturing the inner layer of the body.

[0011] An air chamber is arranged between the outer layer and the inner layer of the body to increase the gas storage capacity, thereby improving and extending the consistency time of the liquid output pressure during infusion; and when the infusion container is accidentally pressurized, the air in the air chamber has a buffering effect, further protecting the inner layer of the body and reducing the possibility of rupture of the inner layer of the body.

[0012] The outer layer of the infusion container is rigid and elastic, and there is an air chamber between the outer layer and the inner layer of the body, which effectively protects the inner layer of the body and significantly reduces the possibility of rupture of the inner layer, that is, significantly reduces the possibility of leakage of the liquid filled in the infusion container, making the infusion container particularly suitable for use in harsh environments such as war and natural disasters.

[0013] During infusion, the infusion needle is inserted into the first plug, the air supply mechanism is connected to the air supply connector, and air is added into the air chamber through the air supply mechanism to increase the air pressure in the air chamber, forcing the inner layer of the body to gradually deform, and the liquid is introduced into the blood vessel through the infusion needle. As the inner layer of the body gradually shrinks, the inner layer of the body and the outer layer of the body are gradually peeled off.

[0014] A method for filling an infusion container is performed in the following order of steps: the first step is to squeeze the infusion container without an air-inflation connector and a first plug installed, so that the volume of the infusion container cavity is reduced; the second step is to fill the infusion container with liquid, and the liquid is located in the inner layer of the body; the third step is to install the first plug at the opening of the container body to ensure that there is no gas in the inner layer of the body; the fourth step is to release the infusion container and reset the outer layer of the body; the fifth step is to install the air-inflation connector at the air inlet hole of the outer layer of the body.

[0015] During the resetting of the outer layer of the body, air enters between the outer layer and the inner layer of the body through the air inlet hole, thereby gradually increasing the volume of the air chamber between the outer layer and the inner layer of the body. The area near the air inlet hole of the infusion container is squeezed, and after the outer layer of the body is resetting, the air chamber is ensured to be directly opposite to the air inlet hole, which improves the smoothness of air entering between the outer layer and the inner layer of the body, and increases the distance between the inner layer of the body and the air inlet hole, avoiding contact between the inner layer of the body and the air infusion needle.

[0016] Through filling control, there is only liquid but no gas in the inner layer of the body, which not only prolongs the shelf life of the liquid but also avoids the input of gas into the blood vessels; at the same time, the infusion container can be placed anywhere during infusion, that is, vertically, horizontally or inverted to ensure stable liquid output.

[0017] Compared with the prior art, the filling method is used to fill the liquid into the infusion container to obtain the packaged physiological saline or medicine. The physiological saline or medicine packaged in the infusion container not only significantly improves the safety of intravenous infusion, but also significantly improves the convenience of intravenous infusion; intravenous infusion can still be conveniently carried out even in harsh environments such as war and natural disasters; the physiological saline or medicine packaged in the infusion container is also suitable for use in space. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the infusion container without the gas replenishing connector and the first stopper installed before filling.

[0019] Figure 2 It is a structural schematic diagram of an infusion container filled with liquid.

[0020] Figure 3 It is a structural schematic diagram of an infusion container equipped with a first cover.

[0021] Figure 4 It is a schematic diagram of the structure of the infusion container in which the outer layer of the body is in a reset state.

[0022] Figure 5 It is a structural schematic diagram of an infusion container equipped with a gas-infusing connector.

[0023] Figure 6 It is a structural schematic diagram of a manual air supply device and an infusion container being in a connected state.

[0024] In the figure, 1, container body; 1a, cavity; 1b, opening; 1c, outer layer of the body; 1d, inner layer of the body; 1e, air chamber; 1f, air inlet; 2, first plug; 2a, plug body; 2b, protective cap; 3, second plug; 3a, annular groove; 3b, auxiliary jack; 3c, membrane flap; 4, air replenishment needle; 5, trachea; 6, air bag; 7, pressure rod; 8, liquid. DETAILED DESCRIPTION

[0025] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0026] Embodiment 1: Figure 5 As shown, an infusion container comprises a container body 1, a first stopper 2 and a gas supplement connection piece. The container body 1 has a cavity 1a and an opening 1b, and the first stopper 2 is installed at the opening 1b of the container body 1; during medication and intravenous infusion, the needle can pierce the first stopper 2, so that the needle is connected to the cavity 1a.

[0027] The container body 1 is composed of a body outer layer 1c and a body inner layer 1d. The body inner layer 1d is located on the inner side of the body outer layer 1c. The body outer layer 1c and the body inner layer 1d are stacked and can be peeled off. The material of the body outer layer 1c is PP or PETG, and the thickness of the body outer layer 1c is 0.2mm-0.5mm; the body outer layer 1c is provided with an air inlet 1f. The body inner layer 1d is a multi-layer composite, and at least one layer of the material in the body inner layer 1d has high barrier properties, and the high barrier material is EVOH or aluminum foil; the thickness of the body inner layer 1d is 0.05mm-0.1mm.

[0028] There is an air chamber 1e between the outer layer 1c of the body and the inner layer 1d of the body, and the air inlet 1f is connected to the air chamber 1e; the air replenishing connector is installed at the air inlet 1f of the outer layer 1c of the body. The air replenishing connector is a second plug 3, and the second plug 3 is made of silicone, and there is an annular groove 3a on the side of the second plug 3; thus, the second plug 3 can be inserted into the air inlet 1f, so that the edge of the air inlet 1f is embedded in the annular groove 3a, and it is ensured that the air replenishing needle 4 can pierce the second plug 3, so that the air replenishing needle 4 is connected to the air chamber 1e, and the air in the air chamber 1e is prevented from leaking through the jack. In harsh environments such as wars and natural disasters, a syringe can be used to inject air into the air chamber 1e, thereby maintaining the required air pressure in the air chamber 1e.

[0029] The center of the second plug 3 has an auxiliary plug hole 3b, and the auxiliary plug hole 3b has a membrane flap 3c to prevent air from leaking outward, so that the air replenishing needle 4 without a needle tip can pierce the second plug 3 from the auxiliary plug hole 3b. Figure 6As shown, the manual air supply device includes an air tube 5, one end of the air tube 5 is connected to an air replenishing needle 4, and the air replenishing needle 4 has no needle tip. The other end of the air tube 5 is connected to an air pressure bag 6. Manually squeezing the air bag 6 can fill air into the air chamber 1e.

[0030] A method for filling an infusion container is carried out in the following order of steps. The first step is as follows: Figure 1 As shown, the infusion container is not installed with the gas-infusing connector and the first plug 2 before filling; Figure 2 As shown, the infusion container is placed between the two pressing rods 7, the distance between the two pressing rods 7 is reduced, the two pressing rods 7 squeeze the infusion container, and the volume of the inner cavity of the infusion container is reduced; the squeezing area is located near the air inlet 1f. The volume of the inner cavity of the infusion container is reduced by 1 / 3 to 1 / 2, so that both the filling capacity and the volume of the air chamber 1e are guaranteed.

[0031] The second step is, Figure 2 As shown, liquid 8 is filled into the cavity 1a of the infusion container from the opening 1b, and the liquid 8 is located in the inner layer 1d of the body.

[0032] The third step is Figure 3 As shown, the first stopper 2 is installed at the opening 1b of the container body 1 to ensure that there is no gas in the inner layer 1d of the body. The volume of the liquid 8 is filled in the second step or the infusion container is squeezed continuously before the first cover is installed to ensure that the top surface of the liquid 8 is in contact with the inner end surface of the first stopper 2, so as to avoid gas in the inner layer 1d of the body. The first stopper 2 includes a stopper body 2a located on the inner side of the inner layer 1d of the body and a protective cap 2b fixedly connected to the outer layer 1c of the body. This structure prevents the inner layer 1d of the body from peeling off from the outer layer 1c of the body at the opening 1b, and prevents the liquid 8 from leaking and the first stopper 2 from falling off.

[0033] The fourth step is Figure 4 As shown, the distance between the two pressure rods 7 increases, the pressure rod 7 releases the infusion container, the outer layer 1c of the main body gradually returns to its original position under the action of its own elasticity, and the air enters between the outer layer 1c of the main body and the inner layer 1d of the main body through the air inlet hole 1f, thereby forming an air chamber 1e between the outer layer 1c of the main body and the inner layer 1d of the main body, and the volume of the air chamber 1e gradually increases, and the air chamber 1e is directly opposite to the air inlet hole 1f.

[0034] Step 5: Figure 5 As shown, the air supplement connector is installed at the air inlet 1f of the outer layer 1c of the main body.

[0035] Embodiment 2: The structure and principle of this embodiment are basically the same as those of Embodiment 1. The similarities are not described here. Only the differences are described. The differences are as follows: the air supply connector is a joint with threads at the outer end, and a vent hole is provided at the center of the joint. Thus, the air supply connector of the air supply device is connected to the air supply connector by threads.

Claims

1. A method for filling an infusion container, the infusion container comprising a container body (1), a first stopper (2) and a gas replenishing connector; The container body (1) has a cavity (1a) and an opening (1b). The container body (1) is composed of a body outer layer (1c) and a body inner layer (1d). The body inner layer (1d) is located on the inner side of the body outer layer (1c). The body outer layer (1c) and the body inner layer (1d) are stacked and arranged. The body outer layer (1c) and the body inner layer (1d) can be peeled off from each other. The material of the body outer layer (1c) is PP or PETG. The thickness of the body outer layer (1c) is 0.2 mm to 0.5 mm. The body outer layer has rigidity and elasticity. The body outer layer (1c) is provided with an air inlet hole (1f). The thickness of the body inner layer (1d) is 0.05 mm to 0.1 mm. It is characterized in that The infusion container filling method is carried out in the following order of steps: In the first step, an infusion container without the gas-infusing connector and the first plug (2) installed is placed between two pressure rods (7), the distance between the two pressure rods (7) is reduced, the two pressure rods (7) squeeze the infusion container, and the volume of the infusion container cavity (1a) is reduced; the squeezing area is located near the air inlet (1f), and the volume of the infusion container cavity is reduced by 1 / 3 to 1 / 2; The second step is to fill the liquid (8) into the cavity (1a) of the infusion container from the opening (1b), wherein the liquid (8) is located in the inner layer (1d) of the body; The third step is to install the first stopper (2) at the opening (1b) of the container body (1) to ensure that there is no gas in the inner layer (1d) of the body; In the fourth step, the distance between the two pressure rods (7) increases, the pressure rod (7) releases the infusion container, the outer layer (1c) of the body gradually returns to its original position under the action of its own elasticity, and air enters between the outer layer (1c) of the body and the inner layer (1d) of the body through the air inlet hole (1f), and an air chamber (1e) is formed between the outer layer (1c) of the body and the inner layer (1d), the air chamber (1e) is directly opposite to the air inlet hole (1f), and the air inlet hole (1f) is connected to the air chamber (1e); The fifth step is to install the air-infusing connecting piece at the air inlet hole (1f) of the outer layer (1c) of the main body. The air-infusing connecting piece is a second plug (3) made of silicone. The second plug (3) is inserted into the air inlet hole (1f). The air in the air chamber has a buffering effect and is used to protect the inner layer (1d) of the main body. When the second plug (3) is pierced by the air-infusing needle (4), the air chamber (1e) is connected to the air-infusing needle (4).

2. The method for filling an infusion container according to claim 1, characterized in that: The second plug (3) has an annular groove (3a) on its side surface; the edge of the air inlet hole (1f) is embedded in the annular groove (3a).

3. The method for filling an infusion container according to claim 1, characterized in that: The main body inner layer (1d) is a multi-layer composite, and at least one layer of material in the main body inner layer (1d) has high barrier properties.

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