Unlock instant, AI-driven research and patent intelligence for your innovation.

Catheter tail end positioning system

A positioning system and catheter technology, applied in surgical navigation systems, medical science, sensors, etc., can solve problems such as inability to accurately determine whether the catheter has reached the best position

Active Publication Date: 2020-12-08
SHENZHEN COMEN MEDICAL INSTR
View PDF11 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005]Based on this, it is necessary to provide a catheter end positioning system for the problem that the catheter end positioning system cannot accurately determine whether the catheter has reached the optimal position

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
  • Catheter tail end positioning system
  • Catheter tail end positioning system
  • Catheter tail end positioning system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0053] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0054] It should be noted that the systole and diastole constitute a cardiac cycle. The electrocardiographic signal of a cardiac cycle generally includes P waves, PR segments, QRS complexes, ST segments, T waves, and the like. Among them, the P wave, the electrical excitation of the normal heart starts from the sinoatrial node. Since the sinoatrial node is located at the junction of the right atrium and the superior vena cava, the excitation of the sinoatrial node is first transmitted to the right atrium, and then transmitted to the left atrium through the interatrial bun...

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 relates to a catheter tail end positioning system. The catheter tail end in puncture catheterization is firstly positioned at the heart based on electrocardiogram signals; and the positioning method of the system comprises the following steps of collecting body surface electrocardiogram signals and in-vivo electrocardiogram signals at the same time; within a preset time interval, obtaining position information of a body surface QRS wave group according to the body surface electrocardiogram signals; according to the position information of the body surface QRS wave group, positioning to obtain a current P wave positive amplitude and a current P wave negative amplitude of a complete in-vivo P-QRS wave in the in-vivo electrocardiogram signals. drawing a forward P-wave trend chart according to the ratio of the current P-wave forward amplitude to a preset P-wave forward amplitude. drawing a negative P-wave trend chart according to the ratio of the current P-wave negative amplitude to a preset P-wave negative amplitude. and comparing the positive P-wave trend chart and the negative P-wave trend chart with preset trend information, and judging the position of the tail end ofthe catheter. According to the catheter tail end positioning system, judgment factors are increased, and the judgment accuracy is improved.

Description

technical field [0001] The present application relates to the technical field of intravascular device positioning, in particular to a catheter terminal positioning system. Background technique [0002] Central venous catheters (Peripherally Inserted Central Venous Catheters, PICCs) inserted through peripheral veins are currently the most commonly used infusion tools in clinical practice. During the operation, the catheter needs to be accurately punctured through the meridians of the human body to the superior vena cava near the junction of the right atrium, so that the drug can be quickly injected into the blood circulation system and the position information closer to the heart. The key to puncture catheterization is to enable medical staff to find the position information of the catheter end in a timely and accurate manner. If the catheter puncture position information is too shallow or too deep, it will cause thrombosis, phlebitis, vein wall corrosion, venous perforation,...

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 Applications(China)
IPC IPC(8): A61B5/06A61B5/0452A61B34/20
CPCA61B5/06A61B34/20A61B2034/2051A61B5/349
Inventor 袁玲王兴红
Owner SHENZHEN COMEN MEDICAL INSTR