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Thrombolytic catheter device

A catheter device and thrombolysis technology, applied in catheters, medical science, surgery, etc., can solve the problems of low thrombolysis efficiency of thrombolysis catheters and the formation of thrombus around the thrombolysis catheter, so as to improve the effect and efficiency of thrombolysis and improve the efficiency of thrombolysis. The effect of plug efficiency

Pending Publication Date: 2019-05-10
GENERAL HOSPITAL OF PLA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a thrombolysis catheter device, which is used to solve the defects of low thrombolysis efficiency and easy formation of thrombus around the thrombolysis catheter in the prior art

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  • Thrombolytic catheter device

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Embodiment Construction

[0019] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0020] It should be noted that the structures, proportions, sizes, etc. shown in this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention. Therefore, Without technical substantive significance, any modification of structure, change of proportional relationship or adjustment of size shall still fall within the technology disclosed in the present invention without affecting the effect and purpose of the present invention. within the scope of the content. At the same time, terms such as "upper", "lower", "left", "right", and "middle...

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Abstract

The embodiment of the invention discloses a thrombolytic catheter device. The thrombolytic catheter device comprises an inner sleeve, an outer sleeve sleeving the inner sleeve, and a base for fixing the outer sleeve and the inner sleeve; a perfusion cavity is formed between the outer sleeve and the inner sleeve, a plurality of perfusion holes are formed in the far end of the outer sleeve, and a perfusion port communicated with the perfusion holes and an inlet of the inner sleeve are formed in the base; the perfusion cavity and an inner cavity of the inner sleeve are mutually independent and are not communicated with each other. According to the thrombolytic catheter device, on the one hand, the perfusion holes are formed in the far end of the outer sleeve, so that the thrombolytic efficiency is improved; on the other hand, the outer wall of the outer sleeve is covered with a heparin coating and the portion close to the base is coated with a hydrophilic coating, so that in the use process, thrombi are prevented from forming around a catheter, and the thrombolytic effect and the thrombolytic efficiency are improved.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a thrombolytic catheter device. Background technique [0002] One of the important injury mechanisms of frostbite to the limbs is reperfusion injury. After the limbs are rewarmed, blood flow resumes. Thawing of frozen tissues may lead to further endothelial cell damage, cell lysis, and release of vasoactive inflammatory mediators, including thromboxane A2 (TXA2), Prostaglandin F2-α, bradykinin, histamine, etc., make extensive thrombosis in frostbitten limbs, which is an important factor leading to amputation. At present, the clinically available thrombectomy / thrombolysis catheter has a large diameter, but it cannot reach the distal artery of the limb, and there is no anticoagulant coating on the outer layer of the tube wall, so it is easy to form thrombus distributed along the tube for a long time, resulting in limb Ischemia further aggravated. The microcatheter tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/00A61B17/22
Inventor 袁凯王茂强王燕阎洁羽张金龙袁冰付金鑫王修琪
Owner GENERAL HOSPITAL OF PLA
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