A disposable infusion set with needle

Abstract

This utility model discloses a disposable infusion set with a needle, relating to the field of infusion set technology. The utility model includes a drip chamber, a connector, a tubing, a flow regulator, a connecting connector, and a needle. A detection component is detachably connected to one end of the tubing near the needle. The detection component includes a hinged first housing and a second housing. The first housing houses an optical detection module for detecting blood return. The detection component also integrates a flow-stopping component, a controller, and an alarm that are linked to the tubing. This utility model effectively isolates ambient light interference by integrating symmetrically arranged optical detection module LED strips and optical sensors within the first housing, and tightly covers the tubing with a light-shielding plate within the second housing, significantly improving the accuracy and reliability of blood return detection. Simultaneously, elastic straps and Velcro securely attach the detection component to the limb, avoiding displacement and tubing pulling problems caused by traditional suspension methods.

Description

Technical Field

[0001] This utility model relates to the field of infusion set technology, specifically to a disposable infusion set with a needle. Background Technology

[0002] An infusion set is a medical device that, after sterilization, establishes a channel between a vein and the medication. A typical infusion set includes a needle, needle cap, infusion tubing, stopcock, dropper, stopcock puncturist, and flow regulator. The stopcock is inserted into the medication bottle, the stopcock is opened, and the dropper is squeezed to allow the medication to enter. The flow regulator is then opened, allowing air in the infusion tubing to be expelled from the needle under the pressure of the medication. The flow regulator is then closed, the needle is inserted into the puncture site, and the flow regulator is opened again to adjust the infusion rate, thus administering the medication.

[0003] Traditional detection components are usually clamped or suspended directly on the tubing, lacking effective light shielding and fixing mechanisms. They are easily affected by ambient light interference, leading to monitoring distortion. Furthermore, due to their own weight, they are prone to shifting, slipping, or even pulling on the tubing, affecting infusion stability and increasing patient discomfort.

[0004] Most existing technologies only have the function of monitoring blood return, but lack a rapid automatic flow-stopping mechanism linked to the monitoring. When abnormal blood return occurs, they cannot automatically and timely physically block the flow of liquid in the tube, which poses a risk of blood backflow due to delayed human intervention.

[0005] Therefore, a disposable infusion set with needle is proposed. Utility Model Content

[0006] To address the problems existing in the prior art, this utility model provides a disposable infusion set with a needle.

[0007] To achieve the above objectives, this utility model specifically adopts the following technical solution: A disposable infusion set with a needle includes a drip chamber, a connector, a tubing, a flow regulator, a connecting connector, and a needle. The end of the tubing near the needle is detachably connected to a detection component. The detection component includes a hinged first housing and a second housing. The first housing contains an optical detection module for detecting blood return. The detection component also integrates a flow-stopping component, a controller, and an alarm that are linked to the tubing.

[0008] Furthermore, the optical detection module includes symmetrically arranged LED detection light strips and optical sensors, with the LED detection light strips and optical sensors respectively fixed to corresponding positions on the inner sides of the two first housings.

[0009] Furthermore, the second housing is provided with a light shield that matches the curvature of the hose, and the light shield is made of soft material and covers the outside of the hose.

[0010] Furthermore, each of the two first housings is connected to an elastic strap by a connecting strap, and the strap is provided with ventilation holes and a first Velcro and a second Velcro that cooperate with each other.

[0011] Furthermore, the flow-stopping component includes an electric telescopic rod, a flow-stopping plate, and a pressure sensor. The telescopic end of the electric telescopic rod is connected to the flow-stopping plate, and the pressure sensor is provided on the side of the flow-stopping plate that contacts the hose. The electric telescopic rod is mounted on one of the first housings.

[0012] Furthermore, the two first housings are detachably connected by snap-fit, and when closed, they form a cavity for accommodating the hose.

[0013] Furthermore, the first housing contains a battery that powers the optical detection module, the flow-stopping component, the controller, and the alarm.

[0014] Furthermore, the cross-section of the light-shielding plate is semi-circular, and its inner surface is provided with anti-slip texture.

[0015] The beneficial effects of this utility model are as follows: 1. This utility model integrates symmetrically arranged optical detection module LED light strips and optical sensors in the first housing, and the flexible tube is tightly wrapped by a light shield in the second housing, which effectively isolates ambient light interference and significantly improves the accuracy and reliability of blood return detection. At the same time, the detection components are securely worn on the limb using elastic straps and Velcro, avoiding the displacement and flexible tube pulling problems caused by traditional suspension methods.

[0016] 2. This invention utilizes a controller to intelligently link the optical detection module and the flow-stopping component. Once backflow is detected, the electric telescopic rod is immediately activated to push the flow-stopping plate and squeeze the tubing. Pressure sensor feedback ensures precise and automatic flow cessation, thus completely preventing prolonged blood backflow caused by delayed human detection or intervention, greatly improving the safety of the infusion process. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is one of the schematic diagrams of the overall structure of the detection component of this utility model; Figure 3 This is one of the schematic diagrams of the split structure of the detection component of this utility model; Figure 4 This is the second schematic diagram of the split structure of the detection component of this utility model; Figure 5 This is a schematic diagram of the flow-stopping component of this utility model; Figure 6 This is the second schematic diagram of the overall structure of the detection component of this utility model.

[0018] Reference numerals: 1. Drip funnel; 2. Connector; 3. Hose; 4. Flow regulator; 5. Connecting connector; 6. Detection component; 601. First housing; 602. Second housing; 603. Connecting strap; 604. Strap; 605. Vent hole; 606. First Velcro; 607. Second Velcro; 608. LED detection light strip; 609. Optical sensor; 610. Light shield; 7. Needle; 8. Flow-stopping component; 801. Electric telescopic rod; 802. Flow-stopping plate; 803. Pressure sensor; 9. Controller; 10. Alarm; 11. Buckle. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example 1:

[0023] like Figure 1-6As shown, a disposable infusion set with a needle includes a drip chamber 1, a connector 2, a tubing 3, a flow regulator 4, a connecting connector 5, and a needle 7. A detection component 6 is detachably connected to one end of the tubing 3 near the needle 7. The detection component 6 includes a hinged first housing 601 and a second housing 602. The first housing 601 contains an optical detection module for detecting backflow. The detection component 6 also integrates a flow-stopping component 8, a controller 9, and an alarm 10 that are linked to the tubing 3. Specifically, the two first housings 601 are hinged together, and the second housing 602 is located at the upper and lower ends of the first housings 601, with an integral molding design between them. This facilitates observation of the internal condition of the tubing 3 and prevents backflow from going undetected.

[0024] like Figure 3-4 As shown, the optical detection module includes symmetrically arranged LED detection strips 608 and optical sensors 609. The LED detection strips 608 and optical sensors 609 are respectively fixed to corresponding positions on the inner side of the two first housings 601. Specifically, the wavelength matching requirements of the LED detection strips 608 and optical sensors 609 can be limited according to the actual design length of the first housings 601. The LED detection strips 608 are driven by constant current to ensure stable detection sensitivity.

[0025] like Figure 2-4 As shown, the second housing 602 is provided with a light shield 610 that matches the curvature of the hose 3. The light shield 610 is made of soft material and covers the outside of the hose 3. Specifically, the light shield 610 can be made of black silicone material to completely cover the hose 3, preventing external light sources from entering the interior of the first housing 601 and affecting its detection accuracy. The inner diameter of the light shield 610 is 0.2mm–0.4mm smaller than the outer diameter of the hose 3, achieving a slight interference fit, which both blocks light and does not additionally flatten the hose 3.

[0026] like Figure 1-5 As shown in Figure 6, each of the two first housings 601 is connected to an elastic strap 604 via a connecting strap 603. The strap 604 is provided with ventilation holes 605 and a first Velcro 606 and a second Velcro 607 that cooperate with each other. Specifically, the connecting strap 603 can be connected to the first housing 601 by adhesive or bolt. The first Velcro 606 and the second Velcro 607 are respectively sewn onto one of the elastic straps 604. The first Velcro 606 has a hook side and the second Velcro 607 has a rough side, which makes it convenient to connect the detection component 6 to the patient's arm and avoids pulling caused by suspension.

[0027] like Figure 6 As shown, the two first housings 601 are detachably connected by a snap fastener 11, and when closed, they form a cavity to accommodate the hose 3; specifically, the snap fastener 11 enables the two first housings 601 to close.

[0028] like Figure 1-5 As shown in Figure 6, the cross-section of the light shield 610 is semi-circular, and its inner surface is provided with anti-slip texture; specifically, the anti-slip texture is an array of raised dots or fine toothed horizontal lines to increase the coefficient of friction with the hose 3 and prevent slippage. Example 2:

[0029] like Figure 5 As shown, the flow-stopping component 8 includes an electric telescopic rod 801, a flow-stopping plate 802, and a pressure sensor 803. The telescopic end of the electric telescopic rod 801 is connected to the flow-stopping plate 802. The pressure sensor 803 is provided on the side of the flow-stopping plate 802 that contacts the hose 3. The electric telescopic rod 801 is mounted on one of the first housings 601. Specifically, the extension of the electric telescopic rod 801 can push the flow-stopping plate 802 to squeeze the hose 3, thereby stopping the flow and preventing harm to the patient from prolonged backflow without timely response. The pressure sensor 803 can detect the squeezing pressure value. When squeezing, if the detected pressure value reaches the set value, a signal will be sent to the controller 9, and the controller 9 will control the electric telescopic rod 801 to stop extending.

[0030] like Figure 1-6 As shown, the first housing 601 contains a battery that powers the optical detection module, the flow-stopping component 8, the controller 9, and the alarm 10. Specifically, after receiving the "blood return" signal, the controller 9 delays for a certain period of time before activating the electric telescopic rod 801 to prevent accidental triggering. The specific delay time should be strictly followed according to the doctor's advice and is not limited here. After clamping is completed, the clamped state must be maintained until the manual reset button is pressed. The selection of the battery needs to meet the requirement of stable power supply to the electrical components. Its model and installation position will not be described in detail here.

[0031] In summary: First, the detection component 6 is fixed to the patient's arm by the first Velcro 606 and the second Velcro 607 on the elastic strap 604. The closed buckle 11 makes the two first housings 601 cover the tube 3. At this time, the light shield 610 tightly covers the tube 3 to form a light-shielding environment. The LED detection light strip 608 of the optical detection module emits light of a specific wavelength. The optical sensor 609 monitors the liquid state in the tube 3 in real time. When a blood return signal is detected, the controller 9 receives the signal and controls the alarm 10 to sound an alarm. If the timely module on it detects that the blood return situation has not improved within a certain period of time, it activates the electric telescopic rod 801 of the flow-stopping component 8 to push the flow-stopping plate 802 to squeeze the tube 3. The pressure sensor 803 monitors the pressure value in real time and feeds back a signal to the controller 9 when the set value is reached, so that the electric telescopic rod 801 stops moving, realizing automatic flow stoppage. At the same time, the entire system is powered by a battery and requires manual reset to release the flow stoppage state.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A disposable infusion set with a needle, comprising a drip chamber (1), a connector (2), a tubing (3), a flow regulator (4), a connecting connector (5), and a needle (7), characterized in that: The end of the tubing (3) near the needle (7) is detachably connected to a detection component (6). The detection component (6) includes a hinged first housing (601) and a second housing (602). The first housing (601) is provided with an optical detection module for detecting blood return. The detection component (6) also integrates a flow-stopping component (8), a controller (9), and an alarm (10) that are linked with the tubing (3).

2. The disposable needle primed infusion set of claim 1 wherein, The optical detection module includes symmetrically arranged LED detection light strips (608) and optical sensors (609), which are respectively fixed to corresponding positions on the inner side of the two first housings (601).

3. The disposable needle set of claim 1 wherein, The second housing (602) is provided with a light shield (610) that matches the curvature of the hose (3). The light shield (610) is made of soft material and covers the outside of the hose (3).

4. The disposable needle set of claim 1 wherein, Two first housings (601) are respectively connected to elastic straps (604) by a connecting strap (603). The straps (604) are provided with ventilation holes (605) and a first Velcro (606) and a second Velcro (607) that cooperate with each other.

5. The disposable needle set of claim 1 wherein, The flow-stopping component (8) includes an electric telescopic rod (801), a flow-stopping plate (802), and a pressure sensor (803). The telescopic end of the electric telescopic rod (801) is connected to the flow-stopping plate (802). The pressure sensor (803) is provided on the side of the flow-stopping plate (802) that contacts the hose (3). The electric telescopic rod (801) is mounted on one of the first housings (601).

6. The disposable needle set of claim 1 wherein, The two first housings (601) are detachably connected by a snap (11) and form a cavity for accommodating the hose (3) when closed.

7. The disposable needle set infusion system of claim 1 wherein, The first housing (601) contains a battery that supplies power to the optical detection module, the flow-stopping component (8), the controller (9) and the alarm (10).

8. The disposable primed infusion set of claim 3 wherein, The cross-section of the light-shielding plate (610) is semi-circular, and its inner surface is provided with anti-slip texture.

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