Automatic flow-stopping hemodialysis indwelling needle and using method thereof

Abstract

The invention discloses an automatic flow-stopping hemodialysis indwelling needle and a using method. The automatic flow-stopping hemodialysis indwelling needle comprises a catheter seat, a clamping tube and a spiral flow-stopping clamp; the clamping tube is arranged in the catheter seat and is not completely covered by the catheter seat, the catheter seat and the clamping tube are coaxial, a channel allowing a steel needle to penetrate in or out is coaxially formed in the catheter seat and the clamping tube, and the clamping tube is an elastic silicone tube and can be closed and opened; the spiral flow-stopping clamp is arranged outside the catheter seat in a sleeving mode and cannot completely cover the catheter seat and the clamping tube, the spiral flow-stopping clamp can be closed and opened, the spiral flow-stopping clamp is opened outwards when being subjected to external force, the clamping tube is opened outwards through the elasticity of the clamping pipe, therefore the channel is opened, and the spiral flow-stopping clamp extrudes the clamping tube and drives the clamping tube to be closed or contracted inwards, so that the channel is closed. The channel is opened or closed by applying pulling force to the spiral flow-stopping clamp, the problem of difficult flow stopping in the prior art is solved, and the automatic flow-stopping hemodialysis indwelling needle is convenient to operate, high in working efficiency, simple in structure and suitable for industrial application and popularization.

Description

technical field [0001] The invention belongs to the technical field of anti-flow indwelling needles, and in particular relates to an automatic anti-flow hemodialysis indwelling needle and a use method thereof. Background technique [0002] The indwelling needles for dialysis currently available on the market have the problem of inconvenient blood stop flow, and the operation is too complicated. Some need to be pinched with fingers to stop flow, and some need to use hemostats to stop flow. There are many risks: [0003] 1. If you pinch with your fingers and use less force, the clamping tube may not be closed, resulting in blood leakage; [0004] 2. The hemostatic clamp is a metal object, which may damage the clamping tube during operation, causing it to break during the treatment and cause blood leakage. [0005] In order to avoid these inconveniences and risks, we have made some improvements to this product. Contents of the invention [0006] In order to solve the proble...

AI Technical Summary

Problems solved by technology

[0002] The indwelling needles for dialysis currently available on the market are inconvenient in terms of stopping the flow of blood, and the operation is too complicated. Some need to pinch the flow with fingers, and some need to use hemostats to stop the flow. There are many risks:

[0003] 1. If you pinch with your fingers and use less force, the clamping tube may not be closed, resulting in blood leakage;

[0004] 2. The hemostatic clamp is a metal object, which may damage the clamping tube during operation, causing it to break during the treatment and cause blood leakage

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