Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Automatic air discharging system of infusion device capable of preventing blood return

A technology of anti-return infusion set and automatic exhaust, which can be used in hypodermic injection devices, devices introduced into the body, etc., and can solve the problems of no set exclusion, harm, and inability to observe dripping speed.

Inactive Publication Date: 2013-07-17
戎静华
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the drip funnel may not be able to observe the drip speed
In this way, the exhaust system without a sealing plug cannot effectively control the position of the gas-liquid interface, and this is still a defect that cannot be ignored
Even if the exhaust system has a sealing plug, the position of the gas-liquid interface can be monitored during exhausting, and the sealing plug should be plugged in time to prevent the dropping funnel from losing the function of observing the dripping speed, but the operation is not simple enough
[0004] In addition, in each of the above-mentioned exhaust systems, there is no component for removing the air entering the lower infusion tube. Once the anti-blood return infusion set is improperly operated and the lower infusion tube is inhaled, this part of the air will follow if it is not excluded. The infusion enters the vein to produce thrombus and cause harm to the human body

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Automatic air discharging system of infusion device capable of preventing blood return
  • Automatic air discharging system of infusion device capable of preventing blood return
  • Automatic air discharging system of infusion device capable of preventing blood return

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as figure 1 The shown automatic exhaust system is used for the anti-blood infusion set. The upper part of the dripping funnel 1 is provided with a dripping funnel cover 1A, and a nozzle 2 is connected to the neck of the dripping funnel cover 1A. The mouth 2A of the nozzle 2 is set on the dripping funnel. the upper end of the cavity. The first air filter 4 and the exhaust pipe 3 are all arranged in the dripping funnel cavity. Offer an opening on the dripping funnel cover 1A to connect the second end 3A of the exhaust pipe 3 . A sealing plug 5 is provided on the second end 3A of the exhaust pipe 3 . A sealing ring 6 is provided between the sealing plug 5 and the inner wall of the second end 3A of the exhaust pipe 3 , and a connecting piece 5A is also provided between the second end 3A of the exhaust pipe 3 and the sealing plug 5 . The exhaust pipe 3 sticks along the inner wall of the dripping funnel 1 and extends into the dripping funnel cavity, and when it reache...

Embodiment 2

[0029] Such as figure 2 The shown automatic exhaust system is used in the anti-blood return infusion set. A nozzle 2 is connected to the neck at the upper end of the drip funnel 1, and the mouth 2A of the nozzle 2 is set at the upper end of the drip funnel chamber. The first air filter 4 and the exhaust pipe 3 are all arranged in the dripping funnel cavity. On the side wall of the dripping funnel 1, an opening is opened to connect the second end 3A of the exhaust pipe 3 at a position between 1 / 2 to 2 / 3 of the pipe height of the dripping funnel 1. A sealing plug 5 is attached to the second end 3A. A sealing ring 6 is provided between the sealing plug 5 and the inner wall of the second end 3A of the exhaust pipe 3 , and a connecting piece 5A is also provided between the second end 3A of the exhaust pipe 3 and the sealing plug 5 . Exhaust pipe 3 extends horizontally inward toward the central area of ​​dropping funnel 1, and the first end 3B of exhaust pipe 3 opens downwards to...

Embodiment 3

[0033] Such as image 3 The shown automatic exhaust system is used in the anti-blood return infusion set. A nozzle 2 is connected to the neck at the upper end of the drip funnel 1, and the mouth 2A of the nozzle 2 is set at the upper end of the drip funnel chamber. The first air filter 4 and the exhaust pipe 3 are all arranged in the dripping funnel cavity. Offer an opening on the bottom wall of the dripper holder 1B to connect the second end 3A of the exhaust pipe 3, connect a sealing plug 5 on the second end 3A of the exhaust pipe 3, between the sealing plug 5 and the inner wall of the exhaust pipe 3 A sealing ring 6 is arranged between them, and a connecting piece 5A is also arranged between the second end 3A of the exhaust pipe 3 and the sealing plug 5 . The exhaust pipe extends upwards towards the cavity of the dripping funnel, and turns horizontally toward the central area of ​​the dripping funnel 1 when reaching between 1 / 2 and 2 / 3 of the pipe height of the dripping fu...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an automatic air discharging system of an infusion device capable of preventing blood return. The automatic air discharging system comprises a nozzle, a first air filter, a second air filter, a sealing plug and an air discharging pipe, and is characterized in that: the nozzle is located at the upper end of a dripping hopper cavity; the air discharging pipe is arranged in the dripping hopper cavity; a first end of the air discharging pipe is connected with the first air filter, and a second end of the air discharging pipe is connected with a dripping hopper wall and is provided with the sealing plug; a first waterproof air filtration membrane in the first air filter is located in a central region of a cylindrical cross section of a dripping hopper, and the highest point of the first waterproof air filtration membrane is located between 1 / 2 to 2 / 3 height of a dripping hopper pipe; and the second air filter provided with a second waterproof air filtration membraneis arranged between a lower infusion pipe and an external conical joint. According to the air discharging system and a special structure thereof, the air can be rapidly discharged automatically no matter whether the dripping hopper is in a violent shaking environment or not; when the dripping hopper is inclined or swung and air discharge is finished, the dripping speed can be persistently and well observed; and air entering the lower infusion pipe can also be automatically discharged.

Description

【Technical field】 [0001] The invention relates to an automatic exhaust system for a one-time use anti-blood infusion set, especially suitable for the anti-blood infusion set. 【technical background】 [0002] The current automatic exhaust system for preventing blood return infusion sets either installs an air filter or a filter with a sealing plug outside the side wall of the dripping funnel, or installs an extension on the dripping funnel cover and connects a dripping drip below. The air filter for the exhaust needle inside the bucket. In order to prevent the infusion solution in the drip funnel from overflowing during exhausting, the air filter membrane in the air filter must be of a water-proof type. Although they can realize the automatic and rapid exhaust of the dropping funnel under normal circumstances, when the dropping funnel is exhausted in an environment of intense vibration, a large number of air bubbles will be generated due to the infusion in the dropping funnel...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): A61M5/14A61M5/36
Inventor 戎静华
Owner 戎静华
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com