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Self-sealing type venous indwelling needle with liquid bag in needle holder

A technology of intravenous indwelling needles and fluid sacs, which is applied in the field of medical devices, can solve problems such as uncertain effects, and achieve the effect of avoiding indwelling needle damage

Active Publication Date: 2015-08-12
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] In addition, 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", it has been on the market for many years and has not been recommended in the "Practice Standards for Intravenous Infusion" in the United States and my country. use, these products are no longer available in the market

Method used

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  • Self-sealing type venous indwelling needle with liquid bag in needle holder
  • Self-sealing type venous indwelling needle with liquid bag in needle holder
  • Self-sealing type venous indwelling needle with liquid bag in needle holder

Examples

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Effect test

Embodiment 1

[0067] Embodiment 1: self-sealing venous indwelling needle of the present invention

[0068] The self-sealing venous indwelling needle of the present invention is composed of a needle base 1, an indwelling catheter 2, an infusion channel 3, a working fluid capsule tube 4, a steel core isolation plug 5, a pressurizing block 6, a pressure-resistant fluid capsule 7, a lock 8 and a flexible connection. Tube 9 consists of;

[0069] Wherein, an indwelling catheter 2 is installed at the end of the needle base 1, and the indwelling catheter 2 is an infusion channel 3, and a steel core isolation plug 5 is arranged in the needle base 1, which provides a passage for the working fluid capsule tube 4 to enter the needle base 1 , and at the same time, it will seal the inner cavity of the needle holder 1 on the side close to the needle tip with the outside world;

[0070] A cylindrical working medium liquid bladder tube 4 is arranged in the inner cavity of the needle base 1, and one end of ...

Embodiment 2

[0074] Embodiment 2: Self-sealing venous indwelling needle of the present invention

[0075] This embodiment is the same as that of Example 1, except that distilled water working liquid, bag-shaped working liquid capsule tube 4, and cuboid pressure-resistant liquid capsule 7 are used, and the self-styled intravenous indwelling of this embodiment is used to treat patients with "cranial Patients with internal high pressure, high blood pressure, heart failure, and kidney disease" need indwelling needle infusion and tube lock. Such patients limit saline input. Conventional flushing and tube lock will input extra sodium salt and liquid into the body. Using the invention to lock the tube Patients avoid excessive salt and water infusion. The operation of the present invention is extremely simple, and the sealing of the tube is completed under the condition of fully sealing the working fluid, without any liquid and medicine entering the blood circulation, without any pollutant enterin...

Embodiment 3

[0076] Embodiment 3: Self-sealing venous indwelling needle of the present invention

[0077]This embodiment is the same as the embodiment 1, except that physiological saline is used, the oval pressure-resistant liquid bladder 7 , the working medium liquid bladder tube 4 and the flexible connecting tube 9 are connected through the longitudinal perforation of the needle hub 1 . Use the self-sealing venous indwelling of this embodiment to perform indwelling needle infusion and seal tube for patients with "long-term infusion" or "highly difficult venipuncture". Usually, it is difficult to find the blood vessels that can be used for puncture and infusion in such patients, and the blood vessels have been punctured repeatedly. Denaturation, 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 possib...

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Abstract

The invention relates to a self-sealing type venous indwelling needle with a liquid bag in a needle holder. The self-sealing type venous indwelling needle with the liquid bag in the needle holder is composed of the needle holder 1, an indwelling catheter 2, an infusion channel 3, a working medium liquid bag tube 4, a steel needle isolation plug 5, a pressurization block 6, a pressure-resisting liquid bag 7, a lock catch 8, a flexible connecting tube 9 and the like. According to the self-sealing type venous indwelling needle with the liquid bag in the needle holder, the working medium liquid bag is located in the needle holder, the infusion channel is large, the requirement for large-flow-speed infusion can be met, no rubber impurity or pollutant flows in, and the service time of the indwelling needle is prolonged; on the condition that the working liquid medium is completely closed, tube sealing can be achieved by pressing the pressurization block, and complex nursing operation is simplified.

Description

【Technical field】 [0001] The invention belongs to the technical field of medical equipment. More specifically, the present invention relates to a self-sealing venous catheter. 【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. They are mainly produced by the joint venture of BD Company in the United States, the joint venture of Braun Company, Shandong Weigao Company, and Suzhou Linhua Company. [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, leaving the soft ind...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/158A61M5/175
CPCA61M5/158A61M2005/1588
Inventor 邓杜娟
Owner 西藏多欣健康科技有限公司
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