Continuous positive pressure remaining needle

A continuous positive pressure and indwelling needle technology, applied in the field of medical supplies, can solve problems such as blood coagulation, indwelling needle blockage, and harm to human health, so as to avoid blood backflow and coagulation, and reduce the risk of thrombus formation.

Pending Publication Date: 2017-05-31
SUZHOU XINKANGDAO MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when the existing indwelling needles are not infused, the blood of the patient is likely to flow back into the indwelling needles, thereby easily causing blockage of the indwelling needles
In addition, the blood remaining in the indwelling needle is prone to coagulation, so that during the next infusion, the coagulated blood will easily enter the blood vessel and form a thrombus, which will endanger the health of the human body

Method used

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Examples

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Embodiment Construction

[0024] The present invention will be described in detail below in conjunction with the implementations shown in the drawings, but it should be noted that these implementations are not limitations of the present invention, and those of ordinary skill in the art based on the functions, methods, or structural changes made by these implementations Equivalent transformations or substitutions all fall within the protection scope of the present invention.

[0025] like figure 1 As shown, the continuous positive pressure indwelling needle of the present invention includes: an indwelling needle, a catheter 11 and a positive pressure maintaining assembly.

[0026] like figure 1 , 5 As shown, the indwelling needle includes a needle holder 1, a holder 2, and a steel needle 7, one end of the steel needle 7 is installed on the needle holder 1, and the holder 11 is sleeved on the steel needle 7, Elastic pieces 9 are arranged in the card holder 2 . The shrapnel 9 is used to stay at the ne...

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Abstract

The invention provides a continuous positive pressure remaining needle which comprises a remaining needle body, a catheter and a positive pressure keeping assembly. The remaining needle body is provided with a branch tube, the branch tube is connected with one end of the catheter, the other end of the catheter is connected with the positive pressure keeping assembly, and the positive pressure keeping assembly comprises a silicone tube, a liquid inlet one-way valve, a liquid outlet valve and a connector. The silicone tube has elasticity, the volume of the silicone tube is expanded when the silicone tube is filled with liquid, the silicone tube is connected with the liquid inlet end of the connector through the liquid inlet one-way valve, the silicone tube is connected with the liquid outlet end of the connector through the liquid outlet valve, and the connector is connected with the other end of the catheter at the same time. The continuous positive pressure remaining needle is provided with the positive pressure keeping assembly, when the remaining needle is not used for infusion, trace normal saline can be continuously injected into a blood vessel of a patient, the phenomenon of backflow and solidification of blood in the catheter of the remaining needle is avoided, and therefore the risk of thrombosis in the catheter of the remaining needle is reduced.

Description

technical field [0001] The invention relates to a medical product, in particular to a continuous positive pressure indwelling needle which can be used alone or in combination. Background technique [0002] An indwelling needle consists of a flexible catheter / cannula that can be indwelled in a blood vessel, and a stainless steel puncture guide core. When in use, the catheter and the needle core are punctured into the blood vessel together. After the catheter has completely entered the blood vessel, the needle core is withdrawn, and only the soft catheter is left in the blood vessel for infusion therapy. The use of indwelling needles can reduce the pain of patients caused by repeated venipuncture, facilitate clinical medication, rescue medication for acute and critical patients, reduce the workload of nurses, and reduce the pain of patients. [0003] However, when the existing indwelling needle is not transfused, the patient's blood tends to flow back into the indwelling need...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/158
CPCA61M5/158A61M2005/1404A61M2005/1587
Inventor 孙军
Owner SUZHOU XINKANGDAO MEDICAL TECH CO LTD
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