Novel retrievable vena cava thrombus filter

A venous thrombosis and recovery cavity technology, applied in the direction of filters in blood vessels, etc., can solve the problems of endangering the health of patients, low corrosion potential, insufficient thrombus filtering efficiency, etc. risk of developing and the effect of the risk of venous occlusion

Inactive Publication Date: 2016-04-27
SHANGHAI HOPE MEDICAL DEVICES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the better products in the market are non-single metal products with low corrosion potential. After the product enters the human body, it is easily corroded in the human blood environment. The metal ions in the product will enter the human body and

Method used

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  • Novel retrievable vena cava thrombus filter
  • Novel retrievable vena cava thrombus filter
  • Novel retrievable vena cava thrombus filter

Examples

Experimental program
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Embodiment Construction

[0018] Below according to accompanying drawing, the present invention will be further described:

[0019] As described in Example 1, the recyclable filter is composed of a recovery hook 1, a connecting inner nut 2, a front filter screen 3, a blood vessel fixing thorn 4, a balance column 5, a sine wave filter screen 6, a tail end 7, and a tail end connection nut 8 .

[0020] The present invention is characterized in that the head end of the product is a product recycling hook, the recycling hook is connected to the front filter screen, the front filter screen is connected to the product balance column, and the turning point where the balance column connects to the front filter screen is the product blood vessel fixing thorn. The product balance column is connected with a sine wave filter, and the other end of the sine wave filter is connected to the tail end. The connection point of the sine wave product end is not in the same straight line as the connection point of the balanc...

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PUM

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Abstract

The invention discloses a novel retrievable vena cava thrombus filter. The product is composed of a retrieving hook, a connecting internal nut, front-end filter screens, blood vessel fixed thorns, balancing pillars, sine wave filter screens, a tail end and a tail end connecting nut. The filter structure is formed through integrated laser cutting processing and welding. The finished product disclosed by the invention, by virtue of the sine wave filter screens in positive S forms, can expand the filter part of the filter and improve the thrombus filter efficiency; the product, when used for filtering thrombus, can avoid occlusion in the passing ability of blood flow, so that the risks of pulmonary embolism reoccurrence and vein occlusion in a patient subjected to the treatment by virtue of the thrombus filter apparatus. The product, which is processed from same nickel-titanium alloy, can improve the corrosion potential thereof, relieve the corrosion thereof in blood, relieve the invasion of metal ions into a human body and promote the safe use thereof.

Description

technical field [0001] The patent of the present invention relates to a medical device for the cardiovascular system, in particular to a recyclable vena cava thrombus filter that can filter floating thrombus in the vena cava system and prevent pulmonary embolism and pulmonary infarction. Background technique [0002] According to reports, there are 300,000-500,000 hospitalized patients each year in the United States due to deep vein thrombosis and pulmonary infarction, of which 50,000 patients died of pulmonary infarction. According to the autopsy analysis of pulmonary infarction patients, 95% of the emboli come from the deep vein and pelvic vein thrombosis of the lower extremities. At present, different manufacturers in the market have also developed different thrombus filtering devices, which are used for limb trauma and fractures, especially vascular intima injuries; trauma; malignant tumors; neurosurgery; pregnancy complicated with deep vein thrombosis; and venous thromb...

Claims

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Application Information

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IPC IPC(8): A61F2/01
Inventor 不公告发明人
Owner SHANGHAI HOPE MEDICAL DEVICES CO LTD
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