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Embryo-reduction device

A pusher and receiver technology, applied in the field of medical devices, can solve the problems of long operation time, high miscarriage rate, residual necrotic tissue, etc., and achieve the effect of avoiding miscarriage and reducing stimulation

Inactive Publication Date: 2010-09-15
BEIJING OBSTETRICS & GYNECOLOGY HOSPITAL CAPITAL MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large operation range of the uterine cavity, the operation time is long, and there are many residual necrotic tissues in this method, it is easy to increase the miscarriage rate after operation.

Method used

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  • Embryo-reduction device
  • Embryo-reduction device

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Experimental program
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Embodiment Construction

[0023] see figure 1 As shown, the present invention includes a puncture needle body 1 and a signal emitting board 2, the puncture needle body 1 is a hollow structure, and a motor 11 and a screw pusher 12 are arranged in the hollow structure; an output shaft 111 is fixed at one end of the motor 11, The tip of the output shaft 111 is fixed with a rotating blade 112, and the edge of the rotating blade 112 is a sharp blade. When not in use, the rotating blade 112 is located in the hollow structure at the tip of the puncture needle body 1, and the other end of the motor 11 is fixed. A screw 113, and the motor 11 is provided with a switch signal receiver 114, and at least three fixing protrusions 115 are provided on the circumference of the housing of the motor 11, and the protrusions 115 can make the motor 11 in the hollow structure of the puncture needle body 1 It will not swing left and right; the screw 113 is threadedly matched with a screw pusher 12, and the screw pusher 12 is ...

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PUM

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Abstract

The invention discloses an embryo-reduction device, which comprises a puncture needle body and a signal-radiation plate, wherein the puncture needle body is in a hollow structure; the point of the puncture needle body is provided with a motor; one end of the motor is fixed with an output shaft; the tip of the output shaft is provided with rotary vanes; the other end of the motor is fixedly provided with a screw rod which is in screw match with a screw rod pusher; the screw rod pusher is fixed on the inner wall of the puncture needle body through a bracket; the screw rod pusher is provided with an expansion signal receiver; the motor is provided with a switch signal receiver; the signal-radiation plate is provided with a switch signal radiator matched with the switch signal receiver and an expansion signal radiator matched with the expansion signal receiver. The invention is suitable for the embryo pregnant for more than 8 weeks, does not need medicine injection, and has small operation range, short operation time and small residual slough.

Description

technical field [0001] The invention relates to a medical device, in particular to a tire reducer. Background technique [0002] With the application of ovulation-stimulating drugs and the transfer of multiple embryos in assisted reproductive technology, the incidence of multiple pregnancy has increased significantly, resulting in increased pregnancy complications and perinatal mortality. At the same time, premature babies or low birth weight babies born due to multiple births will also be affected in physical and mental development. Therefore, multiple pregnancy is a serious complication of assisted reproductive technology, and effective control of multiple pregnancy should be highly valued. [0003] Fetal reduction surgery is a remedy for multiple pregnancy and has become an indispensable technique. Since the 1980s, multifetal pregnancy reduction (MFPR) has been attempted for three or more pregnancies. With the development of ultrasound technology, minimally invasive tre...

Claims

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Application Information

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IPC IPC(8): A61B17/46
Inventor 刘英
Owner BEIJING OBSTETRICS & GYNECOLOGY HOSPITAL CAPITAL MEDICAL UNIV
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