Micro catheter, pushing assembly, fallopian tube embolism, dredge and angiography device, and using method of fallopian tube embolism, dredge, angiography device

Abstract

The invention provides a micro catheter, a pushing assembly, a fallopian tube embolism, dredge and angiography device, and a using method of the fallopian tube embolism, dredge and angiography device.The micro catheter comprises a catheter body, a development base material layer is arranged on the inner wall of the catheter body, and a base is mounted at one end of the catheter body; the pushingassembly comprises a pushing guide wire made of nickel titanium materials, one end of the pushing guide wire extends into a spring ring to be connected with the spring ring, a coating which is made ofnickel chromium materials or a TPU material containing 70% of tungsten powder is arranged on the outer surface of the spring ring, and the pushing guide wire extends into an inner cavity of the microcatheter; and the fallopian tube embolism, dredge and angiography device comprises the micro catheter, the pushing assembly, a fallopian tube catheter inserted in an inner cavity of an outer sleeve,and the outer sleeve, and the micro catheter is inserted in the fallopian tube catheter through the pushing assembly. The using method comprises the steps that during using, the outer sleeve is inserted into the uterine orifice, and the fallopian tube catheter enters the uterus through the outer sleeve; the micro catheter enters the fallopian tube through the pushing assembly; and the pushing guide wire is pulled out, and the spring ring is pushed to the interstitial portion and the isthmic portion of the fallopian tube through the pushing guide wire. According to the micro catheter, the pushing assembly, the fallopian tube embolism, dredge and angiography device, and the using method of the fallopian tube embolism, dredge and angiography device, the structure design is simple and ingenious, embolism, dredge and angiography operations can be conducted, the cost is saved, angiography is clear, and the fallopian tube is not damaged.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a microcatheter, a pushing component, a fallopian tube embolization, dredging, imaging device and a method of use. Background technique [0002] Many patients choose in vitro fertilization-embryo transfer (IVF-ET, also known as test-tube baby) for various reasons, the cost is relatively high and the rate is about 40-50%. Among the many reasons that affect the success rate of IVF-ET, Hydrosalpinx is a very important reason. Many studies in recent years have shown that the presence of hydrosalpinx significantly reduces the clinical pregnancy rate of IVF-ET, and even drops by nearly half. [0003] Interventional tubal embolization is the use of platinum microcoils to mechanically embolize the proximal end of the fallopian tube. During the operation, the microcoils are sent to the interstitium and isthmus of the fallopian tube through a microcatheter to complete the emboliza...

AI Technical Summary

Problems solved by technology

[0005] Hysterosalpingography is the most classic method for judging the patency of the uterine cavity and fallopian tubes. Due to the limitations of hysterosalpingography (including those in which the contrast agent is iodized oil or iodized water), there are false negatives or false positives in the diagnostic results, especially The diagnosis of fallopian tube obstruction is obviously insufficient, and the cause of fallopian tube obstruction is often not identified

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