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

Magnetic resonance compatible puncture needle

A puncture needle and magnetic resonance technology, applied in the field of medical devices, can solve the problems of affecting surgical treatment, existence of artifacts, large magnetic field force and torque, etc., and achieve the effect of convenient calculation of needle insertion depth

Active Publication Date: 2011-08-17
SHENZHEN INST OF ADVANCED TECH
View PDF0 Cites 0 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 outer needle is made of pure titanium, and the inner needle is made of titanium alloy, the outer needle comprises an outer needle handle and an outer sleeve needle connected to the outer needle handle, the inner needle comprises an inner needle handle and an inner needle core connected to the inner needle, the outer needle handle is provided with a notch, and the outer sleeve needle is provided with a middle hole communicated with the notch, and the outside diameter of the outer sleeve needle is less than the inside diameter of the notch; the inner needle handle comprises an outer end part and a needle fixing part connected to the outer end part, the needle fixing part is used for mounting the inner needle core, the outside diameter of the inner needle core is less than the inside diameter of the middle hole of the outer sleeve needle, the outer end part is abutted with the end part of the outer needle handle; the magnetic resonance compatible puncture needle also comprises a diamagetism layer arranged on the outer sleeve needle. The magnetic resonance compatible puncture needle reduces the size of the puncture needle under magnetic resonance imaging and is 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 Patents(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 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