Double-cavity-catheter self-sealing venous indwelling needle

A technology of intravenous indwelling needles and lumens, which is applied to needles and instruments introduced into the body, can solve the problems of uncertain effects of "cannula sealing", achieve the effects of saving intellectual costs, simple operation, and reducing pollution links

Active Publication Date: 2015-03-11
西藏多欣健康科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] There are other methods of setting anti-reflux mechanical valves and duckbill one-way openings at the tip of the catheter. Due to the uncertain effect of "sealing the tube", they have not been recommended in the "Standards for Intravenous Infusion Practice" after being on the market for many years. These products are not recommended in the market. no trace on

Method used

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  • Double-cavity-catheter self-sealing venous indwelling needle
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  • Double-cavity-catheter self-sealing venous indwelling needle

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Effect test

Embodiment 1

[0063] Embodiment 1: Double lumen tube self-sealing venous indwelling needle of the present invention

[0064] The double lumen tube self-sealing venous indwelling needle of the present invention consists of an indwelling catheter 1, a working substance liquid sac tube 2, an infusion lumen 3, a needle point groove 4, a flexible connecting tube 5, a pressurizing block 6, a pressure-resistant liquid sac 7, and a lock 8 1. The needle seat 9 is composed of a steel needle core 10 with a semicircular section.

[0065] The working liquid capsule tube 2 is placed in the indwelling catheter 1, and the end of the working fluid capsule tube 2 is fused with the end of the indwelling catheter 1 to form a needle point groove 4. The other end of the working fluid capsule tube 2 passes through the outer body of the needle hub 9 and the flexible One end of the connecting tube 5 is connected, and the other end of the flexible connecting tube 5 is connected with the pressure-resistant liquid bag...

Embodiment 2

[0068] Embodiment 2: Double lumen tube self-sealing venous indwelling needle of the present invention

[0069] This embodiment is the same as that of Embodiment 1, except that distilled water is used as the working fluid, and a rectangular parallelepiped pressure-resistant fluid capsule 7 is used.

[0070] Use the self-styled venous indwelling of this embodiment to perform indwelling needle infusion and lock tube for patients suffering from "intracranial hypertension, hypertension, heart failure, and kidney disease". Such patients limit saline input, and routine flushing and lock tube will be infused Extra sodium salt and fluid enter the body, and patients who use the catheter lock of the present invention avoid inputting too much salt and water. The operation of the invention is extremely simple, and the sealing of the tube is completed under the condition of fully sealed working liquid, without any liquid and medicine entering the blood circulation, without any pollutant ent...

Embodiment 3

[0071] Embodiment 3: Double lumen tube self-sealing venous indwelling needle of the present invention

[0072] This embodiment is the same as that of Embodiment 1, except that physiological saline is used as the working liquid, and the oval pressure-resistant liquid bladder 7 is used.

[0073] Use the self-sealing double-lumen tube indwelling vein of this embodiment to perform indwelling needle infusion and seal tube for patients with "long-term infusion" or "difficult venipuncture". Repeated puncture has been denatured, each venipuncture is extremely difficult, and the patient is extremely painful, so each venous infusion channel should be kept unobstructed, and the use of the present invention can prolong the service time of the infusion channel as much as possible. The operation of the present invention is extremely simple, and the sealing of the tube is completed under the condition of fully sealed working liquid, without any pollutants entering, and there is no secondary ...

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Abstract

The invention relates to a double-cavity-catheter self-sealing venous indwelling needle which consists of an indwelling catheter 1, a working liquid bag tube 2, an infusion tube cavity 3, a needle point groove 4, a flexible connecting tube 5, a pressuring block 6, a pressure-resistant liquid bag 7, lock catches 8, a needle seat 9 and a steel needle core 10 with a semicircular section. The double-cavity-catheter self-sealing venous indwelling needle is very simple to operate, tube sealing is finished under the condition that a working liquid is completely sealed, no pollutant enters, the needle can be used continuously without complications such as secondary injuries to veins, liquid leakage, phlebitis, venous thrombosis and the like, and a patient feels comfortable. Disposable syringes and flushers are not consumed, nursing operation steps are reduced, and the nursing efficiency and the nursing quality are improved.

Description

【Technical field】 [0001] The invention belongs to the technical field of medical equipment. More specifically, the present invention relates to a double lumen self-sealing venous indwelling needle. 【Background technique】 [0002] In 2013, the amount of intravenous infusion in my country was 10.4 billion bottles, the amount of intravenous infusion devices was 3 billion sets, and the amount of intravenous indwelling needles was more than 300 million. It is mainly produced by the joint venture of BD Company in the United States, the joint venture of Braun Company, Shandong Weigao Company, Suzhou Linhua Company, etc. [0003] The venous indwelling needle is also called the venous trocar, which is composed of a stainless steel needle core, an outer cannula and a plastic needle seat. When puncturing, the stainless steel needle core and the outer cannula are inserted into the blood vessel together, and the stainless steel needle core is drawn out after entering the blood vessel, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/158
CPCA61M5/158
Inventor 邓杜娟
Owner 西藏多欣健康科技有限公司
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