Single-chamber oocyte collector

Abstract

The invention discloses a single- chamber oocyte collector, comprising a puncture needle, a handle, a catheter sleeve, a suction catheter and a silicone plug which are connected in turn; the siliconeplug is connected with a conical joint through a vacuum catheter; a protective sleeve is sleeved on the puncture needle; the puncture needle comprises a needle tube and a needle tip connected with theneedle tube; an ultrasonic development enhancement band group is arranged on the outer wall surface of the needle tube; equal diameter needle tube is used for needle tube; the group of ultrasound development enhancement bands includes several ultrasound development enhancement bands; each ultrasound development enhancement band is constituted by a linear groove group arranged along an axial direction of the needle tube; the curve of the linear groove group is a periodically changed curve; and the outer wall surface of the needle tube is machined adopting an ultrashort pulse laser to form thelinear groove group. The single-chamber oocyte collector of the invention enables the ultrasonic imaging of the puncture needle to present a light-dark alternating scale, and is easy for the operatorto directly observe the needle feeding depth on the display screen of the ultrasonic imaging system in real time during operation, so that the operation is more accurate.

Description

technical field [0001] The invention relates to a single-chamber oocyte collector, which is used for human assisted reproductive technology (ART) ultrasound imaging-guided oocyte retrieval, and belongs to the field of medical devices. Background technique [0002] In the medical field, guided by ultrasound images, puncture is used to puncture the target site to collect body fluids, tissues, cells or introduce medicinal liquid. During the operation, the doctor places the ultrasound probe on the site to be punctured or on the body surface of the site to be punctured, and inserts the needle from the side of the probe. On the display screen of the imaging system, the tissue structure, needle and needle tip can be seen, so as to accurately grasp the puncture needle to reach the target position. In the actual operation process, since the outer wall of the puncture needle is smooth, it produces mirror reflection to the incident sound wave, and the smaller the angle between the pun...

AI Technical Summary

Problems solved by technology

Although, in a puncture needle disclosed in patent 200610066108.6, a sharper ultrasonic imaging can be obtained up to the tip end of the puncture needle. Concave machining of the needle periphery will result in less clear ultrasound visualization up to the end of the needle tip, reducing the effectiveness of this method

[0013] In addition, during the egg retrieval operation, especially when the puncture is in progress, the operator often needs to move his sight from the display screen to the puncture needle, and confirm the depth of the needle by observing the puncture needle on his hand, which is very inconvenient for the doctor to operate. It also affects the accuracy of the operation

It is well known that the effective length of the puncture needle used in the egg retrieval operation is relatively long, about 30cm to 35cm. Even if the ultrasound imaging of the needle head of the puncture needle in the existing technical solution is clearly identifiable, it is difficult to develop the other parts of the puncture needle without special treatment. Doctors cannot directly observe the depth of needle insertion on the display screen in real time, which also reduces the accuracy of surgical operations

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