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Magnetic-compatible non-detachable latex balloon catheter

A balloon catheter and compatibility technology, which is applied in the field of magnetically compatible non-detachable latex balloon catheter, can solve problems such as inaccurate positioning, and achieve the effects of no brain shift, convenient clinical application, and simple implementation

Inactive Publication Date: 2014-03-26
AFFILIATED HUSN HOSPITAL OF FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the needs found by the inventors above, the inventors set magnetic markers on the existing balloon catheter for magnetic positioning, such as positioning markers for magnetic resonance scanning, especially two magnetic markers are set to Correct the problem of inaccurate positioning caused by catheter deformation and slippage

Method used

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  • Magnetic-compatible non-detachable latex balloon catheter
  • Magnetic-compatible non-detachable latex balloon catheter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1 The manufacture of the balloon catheter of the present invention

[0030] Take 101.5 grams of phenylphosphonic acid (available from Jiaxing Alpha Fine Chemical Co., Ltd.) and 101.5 grams of methyl ethyl ketone (available from Zibo Qixiang Petrochemical Group), heat to 60 ° C, and slowly add 240 grams of bisphenol A epoxy The methyl ethyl ketone solution (Epicoat 828: methyl ethyl ketone = 1:1 (weight)) of Epicoat 828 (available from Shell Petroleum Company) was gradually added in 25 minutes, then the temperature was raised to 70°C, and the reaction was kept for 5 hours. The solvent was then removed by evaporation under reduced pressure to give an oil.

[0031] Take 10 grams of the above-mentioned oily substance, mix with 100 grams of poly-1,4-butylene adipate (molecular weight specification 1000Da, available from Chengdu Gracia Chemical Technology Co., Ltd.), 7 grams of 1,4-butanediol ( Can be purchased from Chengdu Gracia Chemical Technology Co., Ltd.), 4...

Embodiment 2

[0034] Embodiment 2 Application of the balloon catheter of the present invention

[0035] The dried magnetic material obtained in Example 1 was tested, and the safety test was carried out with an injection amount of 500mg / Balb C mice, and no symptoms of acute poisoning and chronic poisoning symptoms such as teratogenicity were found; the magnetic compatibility obtained in Example 1 When the non-detachable latex balloon catheter is inserted into the blood vessel, two markers can be clearly displayed in the nuclear magnetic resonance instrument. After 1 hour, the marker signal does not show identifiable attenuation, indicating that the adhesion is firm and will not be released, and the marker and the MR wire can be easily distinguish.

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Abstract

The invention provides a magnetic-compatible non-detachable latex balloon catheter which comprises a catheter body and a balloon located at the far end of the catheter body. One, two or more magnetic marks are arranged on the catheter body located in the balloon. The balloon catheter has magnetic compatibility, can be applied to a magnetic field environment and further can be used for haemodynamic analysis after temporaryartery blockage, such as measurement of (cerebral) artery blood flow volume.

Description

technical field [0001] The invention belongs to the field of medical equipment and auxiliary devices, in particular, the invention relates to a magnetically compatible non-demultex balloon catheter used in surgical operations. Background technique [0002] The treatment of cerebrovascular diseases often requires permanent blockage or long-term temporary blockage of the main intracranial blood supply arteries, and sometimes cerebral ischemic complications occur due to blockage of cerebral arteries, and severe cases can be disabled or dead. Therefore, how to accurately judge the collateral compensation function after cerebral artery occlusion is very important. [0003] Balloon catheters are a common instrument used in such procedures. For example, the detachable balloon catheter reported by Zuo Feng et al. (Journal of Trauma, 4(4): 204~206). However, because the balloon can be detached and cause displacement, more catheters with non-detachable balloons are currently used. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/10A61M25/095A61B5/027
CPCA61M2025/1079A61M25/10A61M25/0127
Inventor 毛颖朱凤平吴劲松顾宇翔朱巍宋冬雷周良辅
Owner AFFILIATED HUSN HOSPITAL OF FUDAN UNIV
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