Injection system with far-end feeding function

Abstract

The application relates to an injection system with the far-end feeding function. The injection system comprises a feeding cavity, an injection cavity, a pushing assembly and an injection object contained in the feeding cavity. An injection needle is arranged at the far end of the injection system and has a hollow structure; a non-return mechanism and a communication port are arranged in the injection system; and the communication port enables the feeding cavity to be in fluid communication with the injection cavity and an inner cavity of the injection needle. When the injection object in thefeeding cavity is input into the injection cavity through the communication port, the pushing assembly moves towards the near-end direction so that the interior of the injection cavity can be kept ina negative pressure state. According to the application, the viscous injection objects are easy to add and inject; the injection system is suitable for minimally invasive surgery and minimally invasive interventional operations; the utilization degree of the injection object is high and the injection amount control becomes accurate; feeding can be carried out instantly conveniently at any positionin the body; and the requirement of carrying out multi-times feeding and injection in the body by using one injection system is met.

Description

technical field [0001] The present application relates to the technical field of medical devices, in particular to an injection system for remote feeding. Background technique [0002] The origin of traditional syringes can be traced back to the 15th century. Since its development, the commonly used specifications range from 1ml to 100ml. The material is basically fixed as hard plastic or glass, and the structure of the syringe has not changed much. Traditional syringes are designed for liquids with good fluidity and for extracorporeal injection on body surfaces. However, with the emergence of new surgical procedures such as minimally invasive surgery and minimally invasive intervention in recent years, medical personnel have proposed the need to use syringes to inject drugs or therapeutic substances into the human body in the above surgical procedures, for example, in tissue repair Injecting high-viscosity fillers during surgery or tissue filling, injecting drugs or filler...

AI Technical Summary

Problems solved by technology

[0008] In view of this, the purpose of this application is to provide a remote feeding injection system, which is used to solve the problem that traditional syringes cannot be applied to minimally invasive surgery and minimally invasive interventional surgery to inject drugs or fillers into deep lesions in the human body. The system is easy to add and inject relatively viscous injections. The utilization of the injections is high and the injection volume is controlled precisely, which is convenient for real-time injection at any position in the body. Requirements for multiple feeding and injections in vivo

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