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Needle-free connector for infusion

A technology of needle joints and connecting parts, which is applied in the direction of connecting tubes and instruments introduced into the body, can solve the problems of patient infection, cumbersome operation, complex structure, etc., and achieve the goal of ensuring bacteria resistance, improving pass rate, and reasonable structural design Effect

Pending Publication Date: 2017-05-31
LUOHE SHUGUANG HUIZHIKANG BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most needle-free infusion connectors have complex structures, cumbersome operations, and poor airtightness, which brings the possibility of infection to patients during the infusion process.

Method used

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  • Needle-free connector for infusion
  • Needle-free connector for infusion
  • Needle-free connector for infusion

Examples

Experimental program
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Embodiment Construction

[0018] as attached Figure 1-5 As shown, a needle-free connector for infusion, comprising an outer cover 2, an elastic capsule 3 and a base 1, the end of the outer cover 21 is round, the bottom of the outer cover 2 is sealed and connected to the base 1, and the middle part of the base 1 is provided with a liquid medicine supply The channel 1b that flows through, the elastic capsule 3 is sleeved on the outer wall of the channel 1b, the inner wall of the elastic capsule (3) is closely attached to the channel (1b), the elastic capsule 3 moves along the channel 1b, so that the liquid medicine can only flow along the channel 1b Indwell the needle to prevent the leakage of medicinal liquid; the end 3a of the elastic capsule is elliptical, and the length of the short axis is greater than the diameter of the end of the outer cover, so the end 3a of the elastic capsule is press fit with the end 21 of the outer cover, and the short axis There is a drainage opening in the direction, and ...

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Abstract

A needle-free connector for infusion comprises an outer cover, an elastic capsule and a base. The end of the outer cover is round. A channel for liquid medicine to flow through is formed in the middle of the base. The elastic capsule is arranged on the outer wall of the channel in a sleeving mode, the end of the elastic capsule is oval, the length of the short axis of the oval is larger than the diameter of the end of the outer cover, a drainage opening is formed in the short axis direction of the oval, the drainage opening comprises two outward-protruding curves symmetrically distributed along the two sides of the short axis, and the distance between the two curves in the long axis direction is gradually reduced from the center of the drainage opening to the two ends of the short axis. A shoulder part for limiting the end of the elastic capsule is arranged on the inner side of the upper portion of the outer cover, and a stop part is in sealing fit with the shoulder part. The base is provided with a connection part, and exhaust grooves are formed along the two radial sides of the channel. The needle-free connector for infusion is reasonable in structural design; due to the round end of the elastic capsule, a good sealing effect is achieved; due to sealing fit between the stop part of the elastic capsule and the shoulder part of the outer cover, the airtightness of a liquid medicine delivery system is ensured, and meanwhile the end of the elastic capsule is not likely to pop out of the end of the outer cover under the elastic force of the elastic capsule.

Description

technical field [0001] The invention relates to an auxiliary medical device, in particular to a needleless connector for transfusion. Background technique [0002] With the development of intravenous infusion technology, needle-free airtight infusion technology is also widely used in clinical practice. Needle-free infusion refers to a type of device that can be used to transport or extract liquid repeatedly without puncture. Needle-free infusion connectors are used as Infusion provides channels and injection ports. At present, most needle-free infusion connectors have complex structures, cumbersome operations, and poor airtightness, which brings the possibility of infection to patients during the infusion process. Contents of the invention [0003] The purpose of the present invention is to provide a needle-free connector for transfusion with simple structure and easy operation. [0004] In order to achieve the above object, the present invention adopts the following sch...

Claims

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Application Information

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IPC IPC(8): A61M5/14A61M39/10
CPCA61M5/14A61M39/10A61M2005/1401
Inventor 万智勇王迎举胡会琴
Owner LUOHE SHUGUANG HUIZHIKANG BIOTECH
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