Expansion structure for expanding saccule by high pressure

Abstract

The invention relates to an expansion structure for expanding a saccule by high pressure, comprising an expandable saccule (1), an outer conduit tube (2), a flexible and hollow inner conduit tube (4) inserted in the outer conduit tube, and a Y-shaped connecting piece (6), wherein a closed passage is formed by one branch tube (10) of the Y-shaped connecting piece (6), the outer conduit tube (2), the inner conduit tube (4) and the expandable saccule (1). The expansion structure is characterized in that a plurality of through holes (3) are arranged on one section of outer conduit tube (2) positioned in the area of the expandable saccule. The through holes arranged on the outer conduit tube ensure that the expansion of the expandable saccule, which is perpendicular to the conduit tube direction, is firstly realized when the expandable saccule is inflated to expand, thereby greatly benefiting the ideal expansion of a compressed centrum, reducing the lengthwise expansion volume thereof, and providing an operation process with the effective function of restoration; and by observing the positions of a mark and a sign (9), the position of the expandable saccule (1) can be deduced, thereby enabling the expandable saccule to freely reach an afflicted part.

Description

technical field [0001] The invention relates to a medical device, in particular to an expansion structure of a high-pressure expansion balloon, which can be used as a pretreatment device before introducing a medium in the treatment of fractured vertebral bodies of osteoporosis patients. Background technique [0002] Vertebral fractures can lead to dysfunctional pain that lasts for several months. This pain can cause the patient to lose labor and exercise capacity, and can quickly cause loss of limb function, atelectasis and pneumonia, deep vein thrombosis and pulmonary embolism, etc. Fatal complications. In addition, vertebral body compression fractures were also the reason why many elderly people could not take care of themselves and lost the ability to live independently in the past. The use of a large amount of drug treatment often causes drug side effects and drug dependence, and most patients do not accept or cannot tolerate surgical treatment. [0003] At present, per...

AI Technical Summary

Problems solved by technology

Show through actual use: although the above-mentioned technical scheme proposed by the applicant can play a corresponding role, the airbag structure in the original design scheme is coaxial with the inner and outer catheters because the airbag structure is inflated. It is very easy to cause the axial expansion of the airbag to precede the lateral expansion, which is not in line with the needs of the affected area in the treatment of general patients. Excessive longitudinal expansion will reduce the lateral expansion and cannot effectively reset. will cause the operation to fail

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