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Property restorable memory alloy silicon rubber oviduct plug

A technology of fallopian tube embolism and memory alloy, which is applied in the field of reversible memory alloy silicon rubber fallopian tube embolism, can solve the problems of inability to guarantee contraceptive safety, poor contraceptive reproducibility, and difficulty in shape change, and meet the requirements of safe and effective contraception, fixation Good, guarantee the effect of recanalization

Inactive Publication Date: 2005-03-16
SHANDONG PROVINCIAL FAMILY PLANNING INST OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main shortcomings of products with this structure that cannot be used in clinical practice are: hollow embolism, which cannot guarantee the safety of contraception, poor contraceptive reproducibility, certain damage to the human body, and difficulty in shape change, etc.

Method used

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  • Property restorable memory alloy silicon rubber oviduct plug
  • Property restorable memory alloy silicon rubber oviduct plug

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Embodiment Construction

[0009] Below with reference to accompanying drawing and embodiment, the present invention will be further described:

[0010] The technical solution of the present invention is not limited only to this embodiment.

[0011] In the embodiment of the present invention, 0.8 mm memory nickel-titanium alloy wire is used to weave a bracket 6, the middle part of the bracket 6 is cylindrical, the diameter of both ends of the bracket 6 is larger than the diameter of the cylinder, and it is in the shape of a bell mouth, and there are 3 bell mouths around each bell mouth The outer diameter of the cylindrical part is 1.8-2.8 mm, generally 2.5 mm, the diameter of the bell mouth is 2-3 mm, and the length of the bracket 6 is 2 cm. This size is suitable for insertion and removal. , and has good contraceptive safety. When the present invention is inserted into the fallopian tube, one end of the bell mouth is in the fallopian tube, and the other end is at the outer end of the fallopian tube. Th...

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Abstract

The disclosed silicone rubber fallopian tube plug utilizes a supporting frame braided by memory alloys, the intermediate section of the supporting frame is in the form of cylinder, the diameter of one end of the supporting frame is larger than that of the cylinder, a silicone rubber plug is arranged in the support frame, which is coated by silicone rubber layer, the circumference of the bell mouth is composed of a plurality of retaining rings. The invention can realize economic, easy, safe and effective contraceptive requirement.

Description

technical field [0001] The invention relates to a contraceptive embolism, in particular to a reversible memory alloy silicone rubber fallopian tube embolism. Background technique [0002] Using memory alloy and silicon rubber to make fallopian tube embolism, in order to achieve the purpose of contraception, is the main research topic of those skilled in the art in recent years. Known from the published documents, its structure is mainly made of memory alloy into a specific shape, the plug is hollow, and the memory alloy is covered with silicon rubber. When it needs to be resettable, a magnetic material is installed. The main shortcomings of products with this structure that cannot be used in clinical practice are: hollow embolism, which cannot guarantee the safety of contraception, poor contraceptive reproducibility, certain damage to the human body, and difficulty in shape change. Contents of the invention [0003] The object of the present invention is to provide a reve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F6/22
Inventor 王磊光王传栋冯青
Owner SHANDONG PROVINCIAL FAMILY PLANNING INST OF SCI & TECH