Flexible contraception device and setting and taking-out device

A kind of birth control device, flexible technology, applied in the direction of female contraceptives, etc., can solve the problems of difficult to realize the organic combination of intrauterine contraception and fallopian tube contraception, adhesion or shedding of fallopian tube endometrium, irritation and other diseases, and reach the range of contraceptive effect Large, increased anti-inflammatory effect, reasonable effect of elasticity and rigidity

Inactive Publication Date: 2005-11-30
林志春
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to population expansion, ideal contraceptive technology and devices are in great demand in China and the third world countries, but the existing measures are not ideal. For example, condoms will reduce the quality of sexual life, adverse reactions such as low back pain and bleeding often occur in Sheung Wan, and there are many oral contraceptives. It will damage the endocrine system, and the embolism is easy to adhere to or fall off the endometrium of the fallopian tube. Sterilization requires surgery and the recanalization rate is low. Forbidden City intrauterine device has become the first choice for contraception for millions of women of childbearing age
However, despite its wide variety, there is currently no perfect IUD, including imported ones.
The main problems are as follows: one is that rigid and (or) semi-rigid materials are used directly, such as copper, plastics, stainless steel and shape memory alloys. During the relaxation process, it is easy to cause friction, damage and inflammation to the soft surface of the uterine cavity mucosa and fallopian tube mucosa, resulting in several side effects; the second is to use heavy metal ions, such as the biological toxicity of copper ions to kill sperm and eggs, but copper rust Direct contact with the endometrium or a large contact area will stimulate and induce other diseases; the third is that the product lacks the perfection of performance, such as the weight, elasticity, biocompatibility, etc., so that the Better contraceptive effect often coexists with side effects such as bleeding, inflammation, low back pain, and detachment; the fourth is that it is technically difficult to achieve an organic combination of intrauterine contraception and tubal contraception

Method used

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  • Flexible contraception device and setting and taking-out device
  • Flexible contraception device and setting and taking-out device

Examples

Experimental program
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Embodiment 1

[0026] Its embodiment one: with reference to figure 1 , a flexible IUD with a full uterine ring and an embolism, the diameter of the memory alloy wire of the frame 1 is 0.55mm, the angle α between the arms on both sides is 30°, the abduction angle β is 135°, the arc radius of the fundus of the uterine R1 is 60mm, the abduction connection arc radius R2 is 18mm, the side arm connection arc radius R3 is 5mm, the lower pot ring radius R4 is 1.8mm, the IUD height H is 28mm, and the width W is 40mm; the diameter of plug 4 Φ is 3.2mm, the length is 6mm, the outer end is a cone with a smooth round head, and the inner end is smoothly transitioned; the suspension part of the suspension system 3 is made of permanent magnetic material, and the magnetic strength is 800GS. The wire development pull ring 2 is shaped into a ring with a memory alloy wire with a diameter of 0.1 mm; the middle layer of the skeleton 1 is a slow-release capillary copper tube with an outer diameter of Φ1 mm, which ...

Embodiment 2

[0027] Embodiment 2: The developing pull ring 2 is made of a medical polymer material and is directly connected to the rings at both ends of the cross arm, and the suspension part 3 is not selected. All the other are the same as embodiment one.

[0028] First, according to the performance and use requirements, determine the parameters of the shape memory alloy wire, such as diameter, geometric size, phase transition point, etc., and then form and fix it through a mold, and perform shaping and shape memory heat treatment to obtain superelastic and suitable performance The shape-memory alloy wire skeleton makes it a whole-uterine-type IUD skeleton 1 that is made of memory alloy wire and is covered with hatching lines in the uterine cavity. Skeleton 1 is characterized by a tapered ring with a smooth transition at its lower part, that is, segment h3; after the left and right arms of the middle part pass through segment h4, they expand symmetrically and smoothly upwards and outward...

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Abstract

The invention discloses a flexible contraception device and setting and taking-out device, which comprises a body member and a plug, the body member is a matrix (1) made of memory alloy filling the section line shape of the uterine cavity, the lower portion of the matrix (1) is a conical ring, the two side arms of the matrix (1) expand upwards and outwards in a smooth manner, then extend towards the center to form transverse arms, the transverse arms are provided with a developing pull-ring (2) and a suspension member (3), a medicine-containing flexible plug (4) is arranged on the upper portion of the matrix (1).

Description

technical field [0001] The invention relates to a female contraceptive device, in particular to an active contraceptive device acting on both the uterine cavity and the fallopian tube, and a device for placing and taking out the contraceptive device. Background technique [0002] Due to population expansion, ideal contraceptive technology and devices are in great demand in China and the third world countries, but the existing measures are not ideal. For example, condoms will reduce the quality of sexual life, adverse reactions such as low back pain and bleeding often occur in Sheung Wan, and there are many oral contraceptives. It will damage the endocrine system, and the embolism is easy to adhere to or fall off the endometrium of the fallopian tube. Sterilization requires surgery and the recanalization rate is low. The Forbidden City intrauterine device has become the first choice for contraception for millions of women of childbearing age. However, despite its wide variety...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F6/14
Inventor 林志春
Owner 林志春
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