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

Needleless dosing positive pressure connector

A technology of crimping joints and joint seats, which is applied in the field of medical devices, can solve problems such as indwelling needle blockage and easy blood coagulation, and achieve the effects of reducing complications, pain, and workload

Active Publication Date: 2011-10-12
SHANGHAI KINDLY MEDICAL INSTR CO LTD
View PDF7 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When the patient has multiple infusions, the indwelling needle is usually used, and the connector of the syringe is generally used to connect the indwelling needle. However, when the infusion is completed and the connector of the syringe is pulled out, the blood will flow back into the indwelling needle due to the negative pressure and will not flow. The blood of the patient is easy to coagulate, and the blood coagulation will cause the blockage of the indwelling needle, and the next infusion cannot be performed

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
  • Needleless dosing positive pressure connector
  • Needleless dosing positive pressure connector
  • Needleless dosing positive pressure connector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] see Figure 1 to Figure 4 , the positive pressure connector for needle-free dosing of the present invention includes an inner hollow upper cover 1, a joint seat 2 and a rubber plug 3, the lower end of the upper cover 1 is fixed to the upper end of the joint seat 2 by photocuring, and the outer surface of the upper cover There are several anti-slip ribs 13, and the inner wall of the upper cover 1 is provided with eight evenly distributed drainage grooves 12. The cross section of the drainage grooves 12 is rectangular, and the rubber plug 3 includes a solid upper end 31 and a lower end with an inner cavity. 32, the upper end 31 and the lower end 32 of the rubber plug 3 are integrally formed, the cross section of the inner cavity 33 of the lower end of the rubber plug is a flat bullet type, the rubber plug 3 is filled in the inside of the upper cover 1, and the top of the upper end 31 of the rubber plug The surface is flat and forms a sealing structure with the upper port ...

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 present invention relates to a needleless dosing positive pressure connector. The positive pressure connector can be mainly used for liquid injection, gravity transfusion and liquid extraction and is connected with a venous transfusion tube, ductus venosus and the like and started through a luer connector. A rubber plug of the positive pressure connector of the present invention is opened to realize the liquid flowing in a single direction and avoid the pollution of particles, micro-fragment and the like caused by needle puncture. When an injector is removed, the positive pressure connector generates a positive pressure to make the liquid inside the positive pressure connector automatically advance and prevent blood from returning to a remaining needle and forming thrombus, so that the blockage of the remaining needle is prevented.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a needle-free positive pressure connector for drug dosing that generates positive pressure during infusion and prevents blood backflow. Background technique [0002] When the patient has multiple infusions, the indwelling needle is usually used, and the connector of the syringe is generally used to connect the indwelling needle. However, when the infusion is completed and the connector of the syringe is pulled out, the blood will flow back into the indwelling needle due to the negative pressure and will not flow. The blood of the patient is easy to coagulate, and the blood coagulation will cause the blockage of the indwelling needle, and the next infusion will not be able to proceed. Contents of the invention [0003] The purpose of the present invention is to provide a positive pressure joint for needle-free drug dosing in order to solve the above problems. When the syringe is p...

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): A61M5/14A61M5/31
Inventor 赵燕张振东王建明徐建海李涛
Owner SHANGHAI KINDLY MEDICAL INSTR CO LTD
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