Conformal particle stent and delivery catheter set based on portal vein

A technology for delivering catheters and portal veins, used in radiation therapy, treatment, etc., to achieve the effect of convenient and quick recovery of stents

Inactive Publication Date: 2021-05-11
王聪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a set of conformable particle stents and delivery catheters based on the portal vein, which solves the problem that the guide wire is not at the center of the guide catheter after being bent

Method used

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  • Conformal particle stent and delivery catheter set based on portal vein
  • Conformal particle stent and delivery catheter set based on portal vein
  • Conformal particle stent and delivery catheter set based on portal vein

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no. 2 example

[0048] see Image 6 , Figure 7 , Figure 8 with Figure 9 , based on the portal vein conformable particle stent and delivery catheter set provided in the first embodiment of the present application, the second embodiment of the present application proposes another portal vein conformable particle stent and delivery catheter set. The second embodiment is only a preferred mode of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0049] Specifically, the difference between the portal vein-based conformable particle stent and the delivery catheter set provided in the second embodiment of the present application is that the portal vein-based conformable particle stent and delivery catheter set also includes: a protective sheath 7, the A first tightening ring 71 and a second tightening ring 72 are respectively fixedly connected to the upper end of the protective sheath 7 , and a first s...

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Abstract

The invention discloses a conformal particle stent and delivery catheter set based on portal vein, and relates to the technical field of medical equipment. The conformal particle stent and delivery catheter set comprises a guide catheter, a particle cannula device is arranged on the right side of the guide catheter, a first connector is arranged at the left end of the particle cannula device, and a second connector is arranged on the right side of the particle cannula device. A recovery device is arranged on the right side of the particle cannula device, a butt joint is arranged on the left side of the recovery device, a particle stent is arranged on the right side of the recovery device, and a particle bag is arranged on the particle stent. According to the conformal particle stent and delivery catheter set based on portal vein, a push rod fixed to a guide wire pulls the particle stent to be recycled, so that the stent is more convenient and faster to recycle; and the guide wire is conveniently guided through a supporting frame, large friction caused by dislocation and abutting of the guide wire is avoided, the guide wire is assisted in limiting, it is guaranteed that the guide wire is located in the center of the guide catheter, and pushing-in is convenient.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a portal vein-based conformable particle stent and delivery catheter set. Background technique [0002] Clinically, external radiotherapy is often used to treat portal vein tumor thrombi to treat tumors. However, due to the wide range of tumor thrombus and its distribution along the curved vascular system, it is difficult to locate radiotherapy, and the patient's liver moves due to respiratory movement. In order to cover the tumor area, external radiotherapy needs to be expanded. The radiation range of radiotherapy will cause great damage to the liver. Clinically, the palliative treatment plan mainly focuses on opening the portal vein lumen, restoring blood flow into the liver, and improving the quality of life of patients. It is necessary to use interventional minimally invasive puncture technology to implant portal vein stents to open blood vessels. , but the stent ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M36/04
CPCA61N5/1002
Inventor 王聪
Owner 王聪
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