Magnetic resonance compatible puncture needle

A puncture needle and magnetic resonance technology, applied in the field of medical devices, can solve problems such as affecting surgical treatment, increasing artifacts, affecting the judgment of surgeons, etc., and achieves the effect of convenient calculation of the depth of needle insertion

Active Publication Date: 2010-07-14
SHENZHEN INST OF ADVANCED TECH
View PDF0 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Puncture needles made of traditional stainless steel materials will be subjected to huge magnetic force and moment and cannot be used
However, although the puncture needle of the new low magnetic susceptibility material is subjected to a small magnetic field force and torque, there are artifacts in imaging, and the artifacts increase with the increase of the field strength.
Excessive artifacts will directly affect the surgeon's judgment on the position of the needle tip, thereby affecting surgical treatment

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
  • Magnetic resonance compatible puncture needle
  • Magnetic resonance compatible puncture needle
  • Magnetic resonance compatible puncture needle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] Such as figure 1 , figure 2 , Figure 3A and Figure 3B As shown, a magnetic resonance compatible puncture needle includes an outer needle 1 and an inner needle 2, and the outer needle 1 inserts the inner needle 2 therein.

[0029] The outer needle 1 includes an outer needle handle 10 and an outer needle 12 , and the outer needle 12 is glued to the outer needle handle 10 .

[0030] The inner needle 2 includes an inner needle handle 20 and an inner needle core 22 , and the inner needle handle 20 is glued to the inner needle core 22 .

[0031] Both the outer needle 12 and the inner needle core 22 are made of magnetic resonance compatible materials. The magnetic resonance puncture needle should be selected on the basis of strength, hardness and other physical parameters and biocompatibility requirements, and the magnetic susceptibility should be selected as close as possible to human tissue. The outer needle 12 is selected as pure titanium, and the grade of pure titan...

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

PropertyMeasurementUnit
thicknessaaaaaaaaaa
Login to view more

Abstract

The invention relates to a magnetic resonance compatible puncture needle which comprises an outer needle and an inner needle, wherein the inner needle is embedded in the outer needle. The magnetic resonance compatible puncture needle is characterized in that the outer needle is made of pure titanium, and the inner needle is made of titanium alloy. The outer needle of the magnetic resonance compatible puncture needle is made of the pure titanium material, and the inner needle is made of the titanium alloy material, thereby reducing the size of the puncture needle under magnetic resonance imaging and being convenient for better judging the position of the puncture needle.

Description

【Technical field】 [0001] The invention relates to a medical device, in particular to a magnetic resonance compatible puncture needle. 【Background technique】 [0002] The puncture needle is the most basic interventional device, which can be used to directly penetrate into the tumor or cyst cavity for diagnosis and treatment such as suction, flushing, drainage, biopsy or ablation; it can also be used to open the channel of the skin and blood vessels or the brain, bile duct, Urinary tract, stomach, abscess cavity and cyst cavity and other tissues, and then guide wire, catheter, drainage tube, etc. are introduced for treatment. Traditional puncture needles are widely used in the medical field, but their application in MRI-guided intervention is limited. Magnetic resonance guided intervention refers to the use of percutaneous puncture technology and catheter technology to treat some diseases or obtain histology, bacteriology, physiology and Biochemical materials to clarify the ...

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): A61B17/34A61L31/02
Inventor 刘新邱本胜郑海荣孙素明邹超
Owner SHENZHEN INST OF ADVANCED TECH
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