Floater for drip chamber of infusion apparatus capable of automatically stopping liquid

Abstract

The utility model provides a floater for a drip chamber of a self-liquid-stopping infusion apparatus, which comprises a cylindrical body, and a plugging surface for plugging a liquid outlet of the drip chamber is arranged at the lower part or the lower part of the body; and a spiral blade is arranged on the side surface of the body. Due to the fact that the spiral blade is arranged on the side face of the body, when liquid medicine drips from the liquid inlet dropper of the drip chamber and flows to the spiral blade on the floater, the floater can rotate, and the liquid medicine in the drip chamber can float smoothly when reaching the theoretical liquid level height.

Description

Technical Field

[0001] This utility model pertains to medical and health devices, specifically a routine medical product used during intravenous infusion, and in particular a novel medical product that automatically closes the needle after the medication has finished dripping. Background Technology

[0002] Air must be strictly prevented from entering the vein during intravenous infusion. In reality, to prevent this, doctors, companions, and even patients are extremely careful, but oversights can still lead to accidents. Therefore, there is a need for a device that automatically stops the infusion when the medication has finished dripping. The infusion set buoyancy-based self-weight automatic needle-closing device (publication number CN201094783Y) and the easily assembled self-stopping drip chamber for infusion sets (application number CN2024218646243) both use a float inside the drip chamber to seal the outlet and achieve self-stopping. However, in actual infusion applications, after medication is added, the float sometimes fails to rise smoothly to the theoretical liquid level, hindering the widespread application of self-stopping infusion sets using this technology. Utility Model Content

[0003] To address the problem that the float inside the drip chamber of existing self-stop infusion sets cannot float smoothly, this utility model proposes a float for the drip chamber of self-stop infusion sets.

[0004] The present invention relates to a float for a self-stopping infusion set drip chamber, comprising a cylindrical body, wherein a sealing surface for sealing the drip chamber outlet is provided at the lower part or below the body; and spiral blades are provided on the side of the body.

[0005] The sealing surface can be a plane, a spherical surface, or a conical surface.

[0006] The sealing surface is made of an elastomeric material.

[0007] A guide post is provided at the upper center of the float, and the guide post cooperates with the guide post through hole provided on the cover plate placed in the drip chamber. The guide post through hole is located at the center of the cover plate.

[0008] During intravenous infusion, the initial state is that the drip chamber outlet is sealed by the plug. When medication is dripped into the drip chamber, the pressure of the medication inside the drip chamber is greater than the venous pressure of the human body, meaning there is a certain degree of vacuum in the infusion tube below the drip chamber. Furthermore, the medication film between the drip chamber outlet and the plug has surface tension, which may be the reason why the float sometimes fails to float smoothly at the theoretical liquid level. The float described in this invention, with its spiral blades on its side, causes the float to rotate when the medication drips from the drip chamber inlet and flows onto the spiral blades. This rotation disrupts the surface tension of the medication film between the drip chamber outlet and the plug, allowing the medication in the drip chamber and the infusion tube below it to float more smoothly. This reduces the vacuum in the infusion tube below the drip chamber, thus enabling the self-closing infusion set's drip chamber float to float smoothly when the medication in the drip chamber reaches the theoretical liquid level. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the application state structure of Embodiment 1 of this utility model.

[0010] Figure 2 This is a perspective view of Embodiment 1 of the present utility model.

[0011] Figure 3 This is the front view of Embodiment 1 of this utility model.

[0012] Figure 4 This is the front view of Embodiment 2 of this utility model.

[0013] Figure 5 This is the front view of Embodiment 3 of this utility model. Detailed Implementation

[0014] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings: Example

[0015] like Figures 1-3 As shown in the figure, the float for the drip chamber of the self-stopping infusion set of this utility model in this embodiment includes a cylindrical body 1. The lower part of the body 1 is provided with a sealing surface 2 made of elastic material for sealing the drip chamber outlet 5. Spiral blades 3 are provided on the side of the body 1. The sealing surface 2 is a plane, a spherical surface, or a conical surface. A guide post 4 is provided at the upper center of the float. The guide post 4 cooperates with a guide post through hole provided on the cover plate 6 placed inside the drip chamber. The guide post through hole is located at the center of the cover plate 6. Example

[0016] like Figure 4 As shown, the difference between this embodiment and embodiment 1 is that the sealing surface 2 is located below the cylindrical body 1, and the sealing surface is a spherical surface. Example

[0017] The difference between this embodiment and embodiment 1 is that the sealing surface 2 is located below the cylindrical body 1, and the sealing surface is a conical surface.

Claims

1. A float for a self-closing infusion set drip chamber, comprising a cylindrical body, wherein a sealing surface for sealing the drip chamber outlet is provided at the lower part or below the body; characterized in that... Helical blades are provided on the side of the main body.

2. The float for a self-stopping infusion set drip chamber according to claim 1, characterized in that: The sealing surface can be a plane, a spherical surface, or a conical surface.

3. The float for a self-stopping infusion set drip chamber according to claim 1, characterized in that... The sealing surface is made of an elastomeric material.

4. The float for a self-stopping infusion set drip chamber according to claim 1, characterized in that: A guide post is provided at the upper center of the float, and the guide post cooperates with the guide post through hole provided on the cover plate placed in the drip chamber. The guide post through hole is located at the center of the cover plate.

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