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Development catheter applied to treatment of chronic total occlusion

A chronic total occlusion and catheter technology, applied in the field of medical devices, can solve the problems of contrast agent reflux, occluded blood vessel development, and failure to develop.

Inactive Publication Date: 2013-02-13
上海交通大学医学院附属第三人民医院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The blockage of the diseased blood vessel will cause the contrast agent to flow back and cannot be developed. The guide wire cannot reach the distal end of the blood vessel smoothly, and the stent cannot be implanted smoothly.
Therefore, the main difficulty in solving CTO lesions lies in the imaging of occluded vessels.

Method used

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  • Development catheter applied to treatment of chronic total occlusion
  • Development catheter applied to treatment of chronic total occlusion

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Embodiment Construction

[0017] The invention provides a developing catheter used in the treatment of chronic total occlusion lesions, which includes a catheter sheath, a balloon is arranged at the top of the catheter sheath, and the balloon is covered outside the top of the catheter sheath, and the balloon is provided with a A joint connected to the external high-pressure equipment of the catheter, a metal braided layer is covered on the inner wall of the catheter sheath, and a joint for connecting with a syringe is provided at the tail of the catheter sheath.

[0018] The developing catheter provided by the present invention will be further described through the following examples in order to better understand the content of the present invention, but the content of the examples does not limit the scope of protection of the present invention.

[0019] Such as figure 1 As shown, the imaging catheter mainly includes the catheter sheath 1 and the catheter. The inner diameter of the catheter sheath 1 i...

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Abstract

The invention provides a development catheter applied to treatment of chronic total occlusion. The development catheter comprises a catheter sheath, wherein a balloon is arranged on the top of the catheter sheath, the balloon is sleeved outside the top of the catheter sheath, the balloon is provided with a joint communicated high-pressure equipment outside the catheter, a metal braid layer covers the inner wall of the catheter sheath, and the tail of the catheter sheath is provided with a joint connected with a syringe. The development catheter can avoid development agent reflux caused by vascular occlusion, can also develop fine gaps in thrombus, and eliminates new injury of patients due to blood circulation prevention caused by transient occlusion of blood vessels.

Description

technical field [0001] The invention relates to a medical device for blood vessels, in particular to a developing catheter used in the treatment of chronic total occlusion disease. Background technique [0002] In coronary interventional surgery, chronic total occlusion (CTO lesion) is an unsolved problem in coronary interventional surgery. Coronary artery chronic total occlusions account for about 1 / 3 of all coronary angiography, but less than 8% of them receive percutaneous coronary intervention (PCI), accounting for only 15-30% of all PCI cases [0003] Pathological and imaging studies have confirmed that most CTO lesions have forward or reverse collateral circulation, which maintains a certain blood supply to the distal end of the occluded vessel segment, but even if the collateral circulation is fully established, it is only functionally equivalent to 90% of the stenotic vessel The blood supply of the myocardium can barely maintain the survival of the myocardium at res...

Claims

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Application Information

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IPC IPC(8): A61M25/10A61M25/095
Inventor 龙盼张俊峰
Owner 上海交通大学医学院附属第三人民医院