Pneumatic needleless injector

A needle-free syringe and pneumatic technology, applied in the field of medical devices, can solve the problems of high cost, limited popularity of pneumatic needle-free syringes, complex structure, etc., and achieve the effect of reducing weight, simple structure and easy damage

Active Publication Date: 2017-03-22
JIANGXI SANXIN MEDTEC
View PDF5 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing pneumatic needle-free injectors on the market are complicated in st

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
  • Pneumatic needleless injector
  • Pneumatic needleless injector
  • Pneumatic needleless injector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0034] Such as Figure 1 to Figure 10As shown, the structure of a pneumatic needle-free injector is designed. Including dose adjustment tube 1-1, dose adjustment tube air hole 1-1-1, magnet 1-2, air cover 1-3, air cover hole 1-3-1, one-way valve 1-4, rubber sleeve 1-5, end cover 1-6, adjusting knob 1-7, fixing screw 1-8, housing 2-1, front chamber air hole 2-1-1, rear chamber air hole 2-1-2, piston chamber 2- 1-3, piston rod cavity 2-1-4, valve cavity 2-1-5, left housing 2-2, left rotation groove 2-2-1, exhaust hole 2-2-2, right housing 2 -3, right rotation slot 2-3-1 air intake nozzle 2-4, air pipe 2-5, connecting air nozzle 2-6, screw 2-7, piston 3-1, plunger slot 3-1-1, Plunger 3-2, piston head sealing ring 3-3, piston sealing ring 3-4, piston rod sealing ring 3-5, plunger sealing ring 3-6, medicine storage bottle 4-1, medicine bottle ...

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 provides a pneumatic needleless injector. The pneumatic needleless injector comprises a dosage adjustment assembly, a shell assembly, a piston assembly, a medicine bottle assembly, a control valve assembly and a needle cylinder assembly, wherein the needle cylinder assembly is positioned at one end of an inner shell, and is fixedly connected with the inner shell through a tightening nut; a plunger piston in the piston assembly is positioned inside a needle cylinder, the small end of a piston is positioned in a piston rod cavity of the inner shell, the large end of the piston is positioned in a piston cavity of the inner shell, and a dosage adjustment tube in the dosage adjustment assembly is positioned inside the piston cavity and is adjacent to the large end of the piston. An end cover in the dosage adjustment assembly is fixedly connected with the inner shell through threads; the dosage adjustment tube is connected with the end cover through threads, so that the effect of adjusting the dosage is achieved. A valve tube in the control valve assembly is positioned in a valve cavity of the inner shell, and operates by coordinating with a control valve, and thus the effect of controlling the movement of the piston is achieved. The medicine bottle assembly is fixedly connected with the shell assembly through screws, and one end of an infusion tube in the medicine bottle assembly is inserted on a water inlet valve cover, so that liquid medicine is conveyed into the needle cylinder.

Description

technical field [0001] The invention belongs to the field of medical equipment, and in particular relates to a pneumatic needle-free injector. Background technique [0002] Syringes have been used in medicine for more than 300 years. Traditional syringes have brought a lot of convenience to human beings, but with the improvement of human's own living standards, there are some problems of its own, such as easy to cause the spread of infectious diseases, needle infection, shared needles, pain, long-term injection will produce subcutaneous nodules and other unfavorable factors. According to foreign reports, among the 4.4 million medical staff in the United States, 800,000 people are stabbed by needles or medical sharps every year, and 800,000 to 1 million needlestick injuries occur to nurses every year; the situation in my country is not optimistic: due to Infection cases caused by unsafe injections are increasing day by day, causing countless direct economic losses, and 87.5%...

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
IPC IPC(8): A61M5/303A61M5/20A61M5/31A61M5/315
CPCA61M5/2053A61M5/3007A61M5/31A61M5/3129A61M5/3146A61M5/315A61M2005/2026A61M2005/2006
Inventor 高焱陈鑫沈冬华邹永俊
Owner JIANGXI SANXIN MEDTEC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap